14 best fft spectrum analyzers

Product description

200Mhz, 1Gsa/s, The SDS1202X-E Series employs a new generation of Spo technology that provides excellent signal fidelity and performance. The system noise is also lower than similar products in the industry. It has a minimum vertical input range of 500 UV/Div, an innovative digital trigger system with high sensitivity and low jitter, and a waveform capture rate of 400, 000 frames/sec (sequence mode). it also employs a 256-level intensity Grading display function and a color temperature display mode not found in other models in this Class. Siglent’s new oscilloscopes offering supports multiple powerful triggering modes including serial bus triggering. Decoding is standard configuration including IIC, SPI, UART, can, LIN. History waveform recording and sequential triggering enable extended waveform recording and analysis. Another powerful addition is the new 1M points FFT math function that gives the sds1000x-e very high frequency resolution when observing signal Spectra. The new design also includes a hardware co-processor that delivers measurements quickly and accurately. The features and high performance of the sds1000x-e Series cannot be matched else anywhere at this price. Channels 2CH+1EXT, Memory depth :7 Mpts/CH (Dual-Channel); 14 Mpts/CH (Single-Channel)/ data sheet(contains data for product relating to speed). Secure erase feature.

• 200 mhz bandwidth
• Real-time sampling rate up to 1 gsa/use
• IRecord length up to 14 Mpts
• Standard serial bus triggering and decode, supports iic, spi, uart, Rs232, can, and lin
• 1M points fft

User questions & answers

Question:	What type of probes are you guys using with these? Will 100mhz probes work on this 200mhz machine
Answer:	100mhz probes will physically work with this oscilloscope (I use a 100mhz differential probe with this due to cost limitations), but be well aware of the limitations of the probes, readings will be less accurate at 100mhz and nearly unusable at the 200mhz range of the oscilloscope. The oscilloscope does come with 4 ok probes that are rated at 200mhz. You are always better off using probes that are rated at least as high as the oscilloscope or higher, your results depend on it.
Question:	Can this model be upgraded by the USB
Answer:	I have seen 1 update to the SDS1202X-E since I have had it. The update was done by placing the update file on a USB drive, and then selecting the file. It was quick and easy.
Question:	Is there a way to use this as a spectrum analyzer ? an sa can cost easily as much as this scope. i am impressed
Answer:	You realize this scope only has an input analog bandwidth of 200 Mhz. The typical low end spectrum analyzer about ($1500) has a bandwidth up to 1.5-2.0 Ghz. SA's also generally come with a tracking generator, which outputs a signal at the exact same frequency being measured at that moment, so you can pass it through a device to measure it's spectrum attenuation. For frequency's below 200 Mhz, the FFT function on this scope will give you some of the same data a SA would give under some conditions. A SA has an enormously more sensitive input. If you connect an antenna to a SA input, it gives a very good display. An antenna connected to the input of this/most oscilloscopes will not show much of anything, as there is not enough signal strength. A SA will also generally have a much higher resolution spectrum,. If you show 200 Mhz of spectrum on this scope, with a 1 million sample FFT, that gives 1/2 million FFT buckets, so each must be about 400 Hz wide. In favor of the oscilloscope, if you're only dealing with low frequencies, a typical spectrum analyzer has a lower frequency limit, like often in the 5 khz range, so is useless below that. For audio work, a scope with a good FFT is way more useful than a RF SA. The FFT function on this scope looks a lot better than on the Rigol scopes due to it's much larger sample size limit.
Question:	Product dimensions shows 16.53 pounds - Shipping weight is 7.5 pounds. Is the box filled with helium
Answer:	All weights listed are in US pounds, not Kg. The weight of the unit is 5.51 pounds (2.49929396 kg) and the shipping weight is 7.2 pounds (3.26586506 kg.) No helium included! Hehe.

Product features

Key Features

• Math co-processor speeds front panel operation
• Waveform capture rate up to 100,000 wfm/s (normal mode), and 400,000 wfm/s (sequence mode)
• Low background noise and 500 μV / div to 10 V / div voltage scales
• Serial decoding is free and includes IIC, SPI, UART, CAN, and LIN
• On-screen Bode plot and web-browser control (standard on 4 channel only)
• WiFi control (optional on 4 channel only)
• True measurement and math can use all 14 Mpts of memory
• Large 7-inch TFT-LCD display with 800 * 480 resolution

Gate and Zoom Measurement

Through Gate and Zoom measurement, the user can specify an arbitrary interval of waveform data analysis and statistics. This helps avoid measurement errors that can be caused by invalid or extraneous data, greatly enhancing the measurements’ validity and flexibility.

Hardware-Based High Speed Pass/ Fail Function

The SDS1000X-E utilizes a hardware-based Pass/Fail function, performing up to 40,000 Pass / Fail decisions each second. Easily generate user defined test templates provide trace mask comparison making it suitable for long-term signal monitoring or automated production line testing.

1Mpts FFT

The new math co-processor enables FFT analysis of incoming signals using up to 1 M samples per waveform. This provides high frequency resolution with a fast refresh rate. The FFT function also supports a variety of window functions so that it can adapt to different spectrum measurement needs.Four-channel series support Peaks, Markers, a variety of numbers.

History Waveforms (History) Mode and Segmented Acquisition (Sequence)

Playback the latest triggered events using the history function.Segmented memory collection will store trigger events into multiple (Up to 80,000) memory segments, each segment will store riggered waveforms and timestamp of each frame.

Serial Bus Decoding Function (Standard)

SDS1000X-E displays the decoding through the events list. Bus protocol information can be quickly and intuitively displayed in a tabular format.

True Measurement to 14 M Points

SDS1004X-E can measure all sampled data points up to 14 Mpts. This ensures the accuracy of measurements while the math co-processor decreases measurement time and increases ease-of-use.

Bode Plot (Four Channel Series Only)

SDS1004X-E can control the USB AWG module or control an independent SIGLENT SDG instrument, scan a devices amplitude and phase frequency response, and display the data as a Bode Plot. There is also a Vari-level Mode for accurately measuring Power Supply Control Loop Response (PSRR). It can also show the result lists, and export the data to a USB disk.

Web Control (Four Channel Series Only)

With the new embedded web server, users can control the SDS1004X-E USB WIFI Adapter series only) from a simple web page. This provides wonderful remote troubleshooting and monitoring capabilities. The web page has PC and mobile styles that include an embedded virtual control panel

• Spectrum analyzers like the tinySA use a resolution filter that is used to isolate the input power in a small frequency range. This resolution filter is swept across the desired frequency range. The fastest scanning speed occurs with an RBW or 300kHz or wider and is about 2 scans per second. But with increase of the frequency span and decrease of the RBW the scanning speed decreases quickly.A scan from 0MHz to 350MHz with an RBW of 10kHz takes about 2 minutes.
• Spectrum Analyzer with two inputs, high quality MF/HF/VHF input for 0.1MHZ-350MHz, lesser quality UHF input for 240MHz-960MHz. Switchable resolution bandpass filters for both ranges between 2.6kHz and 640kHz. Color display showing 290 scan points covering up to the full low or high frequency range. The tinySA contains all the components of a conventional heterodyne swept spectrum analyzer.
• When not used as Spectrum Analyzer it can be used as Signal Generator, MF/HF/VHF sinus output between 0.1MHZ-350MHz, UHF square wave output between 240MHz-960MHz. Built-in calibration signal generator that is used for automatic self test and low input calibration.
• The input/output specification of the tinySA is split over the 4 modes: Low input mode, High input mode, Low output mode, High output mode. The firmware of the tinySA can be updated by the user. New versions of the firmware needed please contact seller for download link.
• PC Control: The USB interface implements the Serial over USB (CDC) protocol and there is a large set of commands that can be invoked over the serial interface. These command can be used to perform measurements or update internal settings. The driver for Windows will install automatically after connecting to a Windows PC. The driver for Linux is built into the kernel. Two softwares to control the tinySA are available. Both are able to capture the screen of the tinySA

User questions & answers

Question:	I want to use this device to measure the signal strength of rf around 300 mhz, will it work for this application
Answer:	I got this for training my son in very low frequency projects, so I cannot tell you I tried at 300 MHz. However, I think it will work if you are going to measure ~300 MHz signal, only if bandwidth (frequency span) of the signal is less than 50 MHz. This unit is designed to measure up to 350 MHz signal.
Question:	Can you use this with labview? my son is doing project in labview and i'm looking for a cheap spectrum analyzer
Answer:	I am not familiar with Labview but if it calls for a spectrum analyzer than this one should work.
Question:	does this have to be connected a computer or does it work as is
Answer:	works as is!! Connecting it to a computer merely gives you a much larger screen and the ability to work with a mouse if you like. If you don't mind the small screen and a touch screen (much too small for my fingers, I have a stlyus), it is just find as it is.
Question:	Through the pc interface can you record rf activity over time
Answer:	Hi, it can't record, it shows real time image only.

Product description

Siglent’s SSA3000X family of spectrum analyzers offer a frequency range of 9 KHz to 2.1/3.2 GHz. With their light weight, small size, and friendly user interface, the SSA3000s present a large, bright easy to read display, powerful and reliable automatic measurements, and plenty of impressive features. Applications include research and development, education, production, maintenance, and pre-compliance testing.

• All-Digital IF Technology
• Frequency Range from 9 kHz up to 2.1 GHz
• -161 dBm/Hz Displayed Average Noise Level (Typ.)
• -98 dBc/Hz @10 kHz Offset Phase Noise (1 GHz, Typ.)
• 1 Hz Minimum Resolution Bandwidth (RBW)

User questions & answers

Question:	Can the siglent ssa3021x-tg digital spectrum analyzer run on battery power? if so, what and how many batteries are required? thank you
Answer:	We are contacting you in regards to your feedback as we are the manufacturer of this item. Current pricing is $13.99 for one gallon, which is $.03/fluid oz. Pricing is subject to change.
Question:	is the tracking generator a trial period or permamently loaded
Answer:	$12.99 is the price for 1 Gallon bottle.
Question:	The ssa3000x manual shows features that seem to be part of the advanced measurement opt. how do i know what features are included in the basic sa
Answer:	Water, Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Cocamide MEA, Phenoxyethanol (and) Caprylyl Glycol, Fragrance Sodium Chloride, Citric Acid, FD&C Blue No. 1, FD&C Yellow No. 5.
Question:	If i oder onw now, will i get the tg option key
Answer:	We are contacting you as manufacturer of this product. This fragrance is synthetically derived. Thank you

Product features

Key Features

• All-Digital IF Technology
• TG standard
• -161 dBm/Hz Displayed Average Noise Level (Typ.)
• -98 dBc/Hz @10 kHz Offset Phase Noise (1 GHz, Typ.)
• Standard Preamplifier
• Reflection/VSWR Measurement Kit (Opt.*)
• Advanced Measurement Kit/Waterfall Chart (Opt.*)
• EMI Pre-compliance Measurements Kit (Opt.*)

Easy to operate, Support four independent traces and cursors

Four selectable color-coded traces can be used for different functions (ie. Max Hold, Min Hold, Clear-Write, Math, Average, etc)

Four movable markers.

1 Hz Minimum Resolution Bandwidth (RBW)

RBW: 1 Hz – 1 MHz in 1-3-10 sequence.

(Minimum RBW depends on Frequency Span)

151 dBm Displayed Average Noise Level (RBW=10 Hz)

Phase noise -98 dBc/Hz @ 1 GHz @ 10 kHz offset

Zero span and demodulation capabilities

AM / FM demodulation with audio output jack.

Advanced measurement kit (AMK-SSA3000X) includes on-screen ACPR measurements

Channel power, Adjacent channel power ratio, TIme domain power, Occupied BW, Third-order intercept, Spectrum monitor (waterfall)

On-screen VSWR/Return Loss measurements with the reflection measurement option (REFL-SSA3000X)

Available with or without directional coupler

EMI filters and Quasi-Peak detector following CISPR 16 (EMI-SSA3000X)

Comes with EMI report software. Speeds measurement time, generates test reports

Product description

The Zacurate Pro Series 500DL fingertip pulse oximeter is manufactured according to the CE and FDA standards set for pulse oximeter designed for sports enthusiasts, pilots or anyone who wants to obtain their SpO2 (blood oxygen saturation levels) and PR (Pulse Rate) on the go. The pulse oximeter LED display now faces the user so that the user can read it easily. We have also upgraded many internal hardware and software components of the pulse oximeter. For example: the pulse oximeter can now display SpO2 up to 100%! Taking a reading is easy, just clip it on to your finger and turn it on at the press of a button. The large LED display makes viewing the results a snap. Its small size makes it easy to carry around and a lanyard is also included for added convenience. Comes with 2 AAA batteries and a silicon cover to protect your pulse oximeter from dirt and damage. Zacurate is a registered trademark of USPTO. We will actively and aggressively pursue any parties who infringe on our intellectual property rights to the maximum extent allowed by the law. Beware of Imitation, Buy Original. Zacurate Pulse oximeter is designed in USA. This device is for Sports & Aviation use only and is not a medical device.

• ACCURATE AND RELIABLE - Accurately determine your SpO2 (blood oxygen saturation levels), pulse rate and pulse strength in 10 seconds and display it conveniently on a large digital LED display.
• FULL SPO2 VALUE - The ONLY LED pulse oximeter that can read and display up to 100% for SpO2.
• SPORT/HEALTH ENTHUSIASTS - For sports enthusiasts like mountain climbers, skiers, bikers or anyone interested in measuring their SpO2 and pulse rate. SpO2 and Pulse Rate now faces instead of away from the user for an easy read.
• ACCOMODATES WIDE RANGE OF FINGER SIZES - Finger chamber with SMART Spring System. Works for ages 12 and above.
• LOADED WITH ACCESSORIES - Include 2X AAA BATTERIES that will allow the pulse oximeter to be used right out of the box, a SILICON COVER to protect your pulse oximeter from dirt and physical damage and a LANYARD for convenience. Comes with 12 months WARRANTY and USA based technical phone support.

User questions & answers

Question:	do you have rechargeable batteries? works with 110v? and does it measure blood pressure too
Answer:	Three red lights indicate full battery.
Question:	My elderly mom who has copd and renaud's syndrome has a hard time getting a reading. is this pulse oximeter sensitive enough
Answer:	Depends how you mean pulse rate. Accurate pulse rate is maybe 1 in 10 inaccurate much better percentage. Please do not buy this if you require a accurate reading for health reasons.
Question:	who do i contact if this does not work
Answer:	Hi! My name is Sara and I am with Beyond Med Shop. Usually, it takes about 10 seconds after turning on the oximeter to get a reading. Please note though that when your blood perfusion level is low or when your hands are cold, the device may need more time to optimize and register an accurate reading. In this instance, we suggest that you warm your hands and fingers before taking the measurements. You can do this simply by rubbing your hands together. Remember your pulse oximeter is measuring your SpO2 and PR based on your blood flow. If the blood flow in your finger drops below a certain level, the pulse oximeter will not be able to function. I hope this helps. Please email us at cs@beyond medshop.com if you require additional information.
Question:	where is it manufactured
Answer:	Yes I have and the heart rate is very close. I have several of these and COPD and this ones heart rate at least the one that I have is very good. On the cell phone app which is called Oximeter the oxygen sensor is way off like 5 points high which is critical and I was told that the cell phone oximeter was more designed for sports than for actual health problems! as an example a five point spread could cause major organ damage do to low oxygen!

Product features

500DL Pro Series Pulse Oximeter

The 500DL Pro Series Fingertip Pulse Oximeter was born primarily due to customer’s frustration with the CMS 50DL. The CMS 50DL was slow, sensitive to movement, inaccurate under indoor lighting and was able to read SpO2 only up to 99%. Now you can accurately and reliably determine your SpO2 (Blood Oxygen Saturation Levels), Pulse Rate and Pulse Strength. Designed for sports enthusiasts, aviators, trainers, bikers, mountain climbers or anyone who wants to obtain their SpO2 on the go.

Accurate and Reliable

Our Pro Series pulse oximeter accurately determines your SpO2 (blood oxygen saturation levels) within +/- 2% deviation.

Hypoallergenic

Constructed with a high quality medical grade silicone finger chamber that is hypoallergenic and latex free.

SpO2 Levels Reach 100%

Blood Oxygen Saturation Level values now reach up to 100% and SpO2 and Pulse Rate now faces the user.

Easy Battery Removal

Our quick snap-off battery cover allows you to place and remove batteries completely hassle-free.

Frequently Asked Questions

Q: How do I know the battery is low?

A: Please note that the flashing battery icon that appears each time you turn on the device indicates that the device is checking the power supply. It disappears after 2-3 blinks. If the battery icon remains on the LED display, then it is an indication of low battery level.

Frequently Asked Questions

Q: How do I turn off the pulse oximeter?

A: The 500DL pulse oximeter turns off automatically in 16 seconds after you remove your finger.

Frequently Asked Questions

Q: Can the 500DL Pulse Oximeter be used on children?

A: Yes. However, we highly recommend using our children pulse oximeter instead which is specifically made for children. The finger chamber of the 500DL Pulse Oximeter may be too big for children with small fingers. This can affect the accuracy of the reading.

Frequently Asked Questions

Q: What are the technical details of the 500DL? A: below are the technical details of the pulse oximeter:

• SpO2 Range: 0% - 100%.
• SpO2 Resolution: +/- 1%.
• Pulse Rate Range: 30-250 bpm.
• Pulse Rate Resolution: +/- 1 bpm.

Product description

Specification:

Application:

1. General and precise testing.

2. Embedded in teaching equipment or industrial test system.

3. Detection of power ripple and noise.

4. Multi-sensor system and serial bus decoding.

5. Analog data acquisition and secondary development and application of digital IO control project.

6. Voltage/current data recording and analysis of solar energy system and lighting system.

7. Fault Diagnosis Tool for Field Maintenance Engineer.

8. Basic tools for DIY enthusiasts and creators

Model: OSC482F

Detail: OSC482M + 13M Hz Signal generator + 4 channels Logic analyzer.

Input channels: 2

Maximum sampling rate: 50M S/s

Bandwidth: 20M Hz

Connector type: 2 channels with BNC sockets, 20 mm spacing.

Vertical resolution: 8 Bit.

Maximum sampling rate (S/s): 50M

Bandwidth (-3 dB): 20MHz

Input coupling: AC/DC.

Input characteristics: 1MΩ || 25pF.

PC OS requirements: For Windows XP/7/8.1/10 (32 bit and 64 bit).

Overvoltage protection: ±60.0v (x1), ±600.0v (x10). (DC + AC peak)

Triggering type: Rising/falling edge according to trigger level.

Triggering mode: None, auto, normal, single.

Pre-trigger capture: 50% of capture size.

Automatic measurements: Maximum, minimum, average, RMS, frequency, period, positive pulse width, negative pulse width, duty cycle, rise time, peak-to-peak value, Deep measurement.

Samples Interpolation: Linear or sin(x)/x.

FFT: 1024 - 16k points.

FFT window function: Rectangle, Hanning, Hamming, Blackman.

Math: A+B, A-B, AxB, X-Y.

Acquisition Modes: High Resolution mode / Peak detect mode.

Waveform recording and playback: File format :*.oscxxx.

Record depth: 50 - 450 frames.

File size: 6 MB - 20GB.

Data logger Sampling Interval: 1 second to 1 hour.

Data logger Record Duration: 1 minute - 72 hours.

• This oscilloscope can be connected to PC for use, realizing PC large screen display, convenient for observation and maintenance.
• Supports Multiple Measurement Modes: This Digital Oscilloscope supports more than 20 automatic measurement functions and FFT spectrum analysis, support a variety of serial protocol decoding
• Allows Convenient Use: This PC USB Digital Virtual Oscilloscope is equipped with open hardware interface, which supports DIY module expansion and can be used with module logic analysis function.
• Allows Convenient Use: This Virtual Oscilloscope provides GPIO interface and software interface protocol for customer's secondary development
• 4 Channel Logic Analyzer: This Digital Oscilloscope is designed with the function of 13MHZ signal generator and the function of 4-channel logic analyzer, TTL level is easy to operate

• The SAA-2N/NanoVNA_V2.2 uses a similar user interface to the NanoVNA, but with a different technical architecture, the SAA-2N/NanoVNA_V2.2 does not load the initial calibration data at startup, and does not automatically interpolate the calibration data after the user changes the frequency, and must recalibrate or call back the calibration data after each startup and frequency change. Please read the user manual carefully before use to avoid damaging the device.
• Transmission Mearsure S21: 70dB(50KHz-1.5GHz), 60dB(1.5GHz-3GHz). Reflection Measure S11: -50dB(50KHz-1.5GHz), -40dB(1.5GHz-3GHz); Antenna Analyzer: 1.005(50KHz - 1.5GHz), 1.02(1.5GHz-3GHz)
• PC Connection: the device can be controlled by PC via VNA-QT software,supported for Linux, Windows (7+), Mac OS planned. It also support Nanovna-Saver for extracting the data for display on a computer, and for saving to Touchstore files.

User questions & answers

Question:	Can it measure attenuators
Answer:	Hi, yes, it can work with attenuators. We do sell attenuators that work with the NanoVNA.
Question:	What is the expected battery life expectancy before not taking a charge anymore? Can it be replaced
Answer:	Battery should be good for 200-300 charge cycles. Yes it can be replaced with a bit of technical skill.
Question:	Will this unit calculate distance to fault in coax? DTF
Answer:	Yes, you can use this to show “length to fault” distance. Quite a handy little device.
Question:	Which firmware update do I use with this instrument
Answer:	"V2.74" from blackmagic is the unofficial (clone) hardware version firmware you need.

Product description

Digital oscilloscope



Channels2

Impedance1MΩ 25pF

CouplingAC/DC

Vertical resolution8Bit

Gain range-6V ~ 6V（probe X1）

-60V ~ 60V（probe X10）

Vertical accuracy+-3%

Timebase range1ns-20s

Input ProtectionDiode，50Vpk

AutosetYes(10Hz to 20MHz)

Trigger ModeAuto、Normal and Signal

Trigger TypeNo、Rising edge、Falling edge、 Rising edge or Falling edge

Trigger levelYes

Trigger SourceCH1, CH2

Buffer Size1MB/CH

Bandwidth20MHz

Max sample48MS/s

Vertical modeCH1, CH2, ADD, SUB, MUL

Display ModeX、Y-T and X-Y

measurementsYes

Wave saveOsc(Private)、Excel and Bmp



Spectrum analyzers



Channels2

Bandwidth20MHz

AlgorithmFFT(18 windows)、correlation、power spectrum

FFT points8-1048576/CHN

IIR filter support "Butterworth", "Chebyshev I", "Chebyshev II", "Elliptic" type of filter design



Data recorder



Channel 2

Impedance1MΩ 25pF

CouplingAC/DC

Vertical resolution8Bit

Gain range-6V ~ 6V（probe X1）

-60V ~ 60V（probe X10）

Sample1 channel : 1K~24M Hz

2 channel : 1K~16M Hz

Save FileThe maximum 4G, recording time associated with the sampling rate



Logic Analyzer





Channel:16

Sample:8 channel: 250K~24M Hz

16 channel: 250K~16M Hz

Sample points:1M-2GB



Saleae Logic Logic Analyzer

Channel:8

Sample:25K~24M Hz

Sample points:1MB~10TB

DDS



Wave:Sine, Square(Duty circle variable),Triangle,Up Sawtooth,Down Sawtooth

Amplitude:≥9Vp-p(no load)

Impedance:200Ω±10%

Offset:±2.5V

Frequency range:1Hz ~ 20MHz(Sine), 1Hz ~ 2MHz(Others)

Frequency resolution:1Hz

Frequency steadiness:+-1×10-3

Frequency precision:+-5×10-3

Triangular wave linearity:≥98% (1Hz~10kHz)

Sine wave distortion:≤0.8% (1kHz)

• Digital Oscilloscope+Spectrum Analyzer+Data Recorder+ Logic Analyzer+DDS
• PC Based 2 Channels Oscilloscope
• 20 MHz Bandwidth, 48MSa/s Sampling Rate
• 16 Channel Logic Circuit Analyzer
• DDS support 5 kinds of waveform output, Sine wave can output up to 20M

• 【2.8inch Touching Display Screen】Switchable resolution bandpass filters for both ranges between 2.6kHz and 640kHz.Color display showing 290 scan points covering up to the full low or high frequency range.
• 【Input Frequency Range】Spectrum analyzer with two inputs, fine quality MF/HF/VHF input for 0.1MHz-350MHz, lesser quality UHF input for 240MHz-960MHz. Switchable resolution bandpass filters for both ranges between 2.6KHz and 640KHz.
• 【2-in-1】Built-in calibration signal generator that is used for automatic self test and low input calibration.When not used as Spectrum Analyzer it can be used as Signal Generator, MF/HF/VHF sinus output between 0.1MHZ-350MHz, UHF square wave output between 240MHz-960MHz.
• 【Portable and Convenient】Connected to a PC via USB it becomes a PC controlled Spectrum Analyzer.The USB interface implements the Serial over USB (CDC) protocol and there is a large set of commands that can be invoked over the serial interface. These command can be used to perform measurements or update internal settings. Bulit-in rechargeable battery allowing a minimum of at least 2 hours portable use.
• 【Package List】1x Tiny Spectrum Analyzer;2 x 20cm RF Cable;1 x USB Cable;1 x SMA Female to Female Connector;1x Touchscreen Pen;1 x SMA Telescopic Antenna.It's very useful as an antenna analyzer for your ham station, easy to set without fancy calibration.

User questions & answers

Question:	Does it come with the touch screen pen
Answer:	Yes, a small plastic pen.Very convenient.
Question:	Can this unit be used on a tv antenna system to measure signal levels
Answer:	There is a YouTube channel where the person goes over ever aspect of this device of what it can and cannot do. Do a search on the TinySA.
Question:	Does it generate sine waves
Answer:	According to the instructions it does have a signal generator.
Question:	Will this product work with older versions of windows, like xp or windows
Answer:	the device can compatible with Windows and linux system.

• Spectrum Analyzer with two inputs, high quality MF/HF/VHF input for 0.1MHZ-350MHz, lesser quality UHF input for 240MHz-960MHz
• Built-in calibration signal generator that is used for automatic self test and low input calibration.
• Switchable resolution bandpass filters for both ranges between 2.6kHz and 640kHz.Color display showing 290 scan points covering up to the full low or high frequency range.
• When not used as Spectrum Analyzer it can be used as Signal Generator, MF/HF/VHF sinus output between 0.1MHZ-350MHz, UHF square wave output between 240MHz-960MHz.
• Connected to a PC via USB it becomes a PC controlled Spectrum Analyzer.Bulit-in rechargeable battery allowing a minimum of at least 2 hours portable use

User questions & answers

Question:	Does it come with the touch screen pen
Answer:	Yes, a small plastic pen.
Question:	Is this suitable for testing tv vhf and uhf signal strength
Answer:	Not an expert on TV VHF and UHF, but I believe the TinySA range covers the UHF and VHF spectrum. With some calibration and manual setting (research on YouTube) it will provide accuracy that meets most needs. It is not a $2500 SA, so expect a certain amount of "ok, but its only $50 bucks". Also, ATTENUATE if signal strength/input is expected to be high. Again, research videos with professional testing from engineers. There's plenty of help online.
Question:	can this be used to display and analyze noise on an AC power line
Answer:	You might be better off with an oscilloscope. The TinySA does not have high input impedance and a direct measurement on the power line would likely damage it (and be very unsafe).
Question:	is there a linux-based version of the app
Answer:	Yes,it support

Product features

The tinySA is a small spectrum analyzer, primarily intended for 0.1MHz to 350MHz

Specification: * Display resolution 320*240 pixels * Screen diagonal 2.8" * 16 bits per RGB pixels * Resistive touch control * Jog switch control * USB serial port control * Optional TTL USART port (SW not yet implemented) on the internal PCB * Linear power supply to avoid switching noise.

USB Charging

Charging time max 1 hour on 500mA minimum USB port or USB charger.Operation on fully charged battery for at least 2 hours

PC Control

The USB interface implements the Serial over USB (CDC) protocol and there is a large set of commands that can be invoked over the serial interface. These command can be used to perform measurements or update internal settings. The driver for Windows will install automatically after connecting to a Windows PC. The driver for Linux is built into the kernel

• 2.4 GHz and 5 GHz Spectrum Analyzer views all interference including ZigBee, Bluetooth, Baby Monitors, etc
• Android, iOS, Mac, PC Supported
• Scan and Troubleshoot Wi-Fi
• SSID’s and RSSI
• 802.11 and ZigBee Channel Guides

User questions & answers

Question:	Does it capture Z band
Answer:	No, but WiPry 790 covers Z-Wave: 868.42 MHz for Europe and 908.43MHz for US.
Question:	What is the difference between wipry 5x and wipry 2500x
Answer:	Good question: one key difference is that the WiPry 5x is no longer offered (although there are a few legacy units still floating around in select markets). It has now been replaced by the WiPry 2500x. Some differences: WiPry 2500x has AAA batteries (minimizes the impact to phone battery) and as a result is slightly larger.
Question:	Will this work on ax/ac protocols? i have a wifi interference problem that's annoying af, can't seem to find the problem
Answer:	Hello, yes this should work for what you are looking to use it for. I hope that this helps.
Question:	What is the DC voltage range for a battery charger? There is no information in their app or manual re the charger, and it doesn't come with one
Answer:	The connector is a USB Micro B and should provide 5v, 100mA. The circuit will accept any voltage from 2.6 to 9v.

Product features

Portable Field Tool

WiPry 2500x can help make your Wi-Fi awesome, and it can be done on-the-go. Just download the free app (WiPry) from either the App Store or Google Play to see how it works!

See The Invisible RF Landscape!

WiPry 2500x visualizes SSID's as well as all RF activity on both 2.4 & 5 GHz. This includes: baby monitors, cordless phones, garage door openers, and microwave ovens (to name a few)

Improves Wi-Fi Speed & Reliability

WiPry 2500x will help improve the grade of your wireless environment by helping you: avoid interference, educate customers, identify interference sources, optimize the channel, and undo / relocate hardware.

Works with iOS, Android, PC, Mac

Oscium’s WiPry 2500x is compatible with iOS, Android, PC and Mac. This cross platform solution is perfectly portable as are all Oscium’s tools. And now, it’s possible to use whichever host device you prefer. Oscium's software applications are all free. There's no licensing fee and there's no subscription so it's easy to use your WiPry 2500x.

The Perfect Blend of Performance & Portability

System Requirements (Software):

• iOS version 7.0+
• Android version 6.0+
• Windows 7+
• Mac OS 10.10+ (Yosemite)

System Requirements (Hardware):

• iOS Lightning Devices (iPad, iPhone, iPod)
• Android Devices with USB OTG
• Windows/Mac USB 2.0

Advanced Reporting

Oscium's WiPry 2500x auto-analyzes your wireless environment and provides a report highlighting everything you need to know:

• grade channeling for your Wi-Fi network (using A through F, just like in school!)
• signal to noise ratio (perfect for knowing whether VoIP or video streaming is possible)
• play / record (helpful in capturing intermittent issues)
• birth certificates (tracks Wi-Fi health)
• view environment over time using waterfall mode

Product description

The Zacurate Fingertip Pulse Oximeter is manufactured according to the CE and FDA standards set for pulse oximeters designed for pilots or any sport enthusiasts who want to obtain their SpO2 (Blood Oxygen Saturation Levels) and PR (Pulse Rate) on the go, the pulse oximeter LED display faces the user so that the user can read it easily.

Taking a reading is easy, just clip it on to your finger and turn it on at the press of a button. The large LED display makes viewing the results a snap. Its small size makes it easy to carry around and a lanyard is also included for added convenience. Comes with 2 AAA batteries so that you can use it immediately upon arrival.

This device is for Sports & Aviation use only and is not a medical device.

Comes with 1 year manufacturer warranty. Terms and conditions apply. Please refer to the manufacturer website for more info.

• ACCURATE AND RELIABLE - Accurately determine your SpO2 (blood oxygen saturation levels), pulse rate and pulse strength in 10 seconds and display it conveniently on a large digital LED display.
• SPORT/HEALTH ENTHUSIASTS - For sports enthusiasts like mountain climbers, skiers, bikers or anyone interested in measuring their SpO2 and pulse rate. SpO2 and Pulse Rate now faces instead of away from the user for easy read.
• EASY TO USE - Taking a reading is easy, just clip it on to your finger and turn it on at the press of a button.
• ACCOMODATES WIDE RANGE OF FINGER SIZES - Finger chamber with SMART Spring System. Works for ages 12 and above.
• LOADED WITH ACCESSORIES - Include 2X AAA BATTERIES that will allow you to use the pulse oximeter right out of the box and a LANYARD for convenience. Comes with 12 months WARRANTY and USA based technical phone support.

User questions & answers

Question:	Battery level indicator: are the batteries empty when all three red dots light up or are they full
Answer:	Sometimes it is difficult to get the loop of the lanyard through. If you put a short 8 inch length of sewing thread in the lanyard loop and fold the thread so the thread ends meet, then you can easily get the thread through the hole and pull the thread until the lanyard Loop comes through. Remove the thread, then loop the lanyard.
Question:	how frequently does it show pulse rate
Answer:	Direct from their web page: Accuracy : 70%-100%:±3,
Question:	How long does it take to get a reading
Answer:	Yes
Question:	Has anyone ever compared the results for this item with the cell phone ios app "heart rate monitor" and if so, are the results compatible
Answer:	Perfusion Index or PI is the ratio of the pulsatile blood flow to the non-pulsatile static blood flow in a patient's peripheral tissue, such as finger tip, toe, or ear lobe. Perfusion index is an indication of the pulse strength at the sensor site. The PI's values range from 0.02% for very weak pulse to 20% for extremely strong pulse.

Product features

Zacurate Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor

The Zacurate Fingertip Pulse Oximeter is manufactured and designed for sports enthusiasts, aviators, trainers, bikers, mountain climbers, hikers or anyone who wants to obtain their SpO2 on the go! Measures your blood oxygen levels and pulse strength in 10 seconds. Taking a reading is easy, just clip it on to your finger and turn it on at the press of a button. The large LED display makes viewing the results a snap. Its small size and lanyard makes it convenient and easy to carry around.

Accurate and Reliable

Accurately determines your SpO2 (blood oxygen saturation levels) within +/- 2% deviation.

SpO2 and Pulse Rate Face the User

Health data faces the user to monitor blood oxygen saturation levels and pulse rate.

Easy Battery Removal

Our quick snap-off battery cover allows you to place and remove batteries completely hassle-free.

Infrared Shield

High Quality ABS Plastic shields the pulse oximeter from the environment to ensure accurate readings.

Portable and Easy to Carry

The design and size of the pulse oximeter makes it easier to carry around everywhere you go.

Suitable for All Ages

Finger chamber with SMART Spring System. Accommodates wide range of finger sizes.

Technical Details

SpO2%, PR bpm, battery level indicator, pulse bar graph.

Run Time

600 spot checks on two full power batteries at ambient temperature of 25°C.

Pulse Rate Range

25 bpm to 250 bpm.

Frequently Asked Questions

Q: It's not accurate and jumps around on the reading. Is the pulse oximeter defective?

A: When taking a reading with the pulse oximeter, we usually suggest that you wait about 30 seconds for the readings to stabilize. Some people require a longer time for the pulse oximeter to optimize its sensitivity. Following that, please also ensure that you keep your hand still because any movement can cause the device to reset its' reading - hence the erratic readings that you see. Additionally, nail polish and false fingernails may also cause false readings. If possible, switch to an unpolished nail or consider another application site.

Frequently Asked Questions

Q: How do I know the battery is low?

A: Please note that the flashing battery icon that appears each time you turn on the device indicates that the device is checking the power supply. It disappears after 2-3 blinks. If the battery icon remains on the LED display, then it is an indication of low battery level.

Frequently Asked Questions

Q: Does this device have any alarm modes for high pr and/or low SpO2?

A: No. The pulse oximeter does not have an alarm, however, the Zacurate 500D Deluxe Pulse Oximeter has an alarm/sound function. We recommend purchasing this model if you're looking for this feature.

Frequently Asked Questions

Q: Can the Pulse Oximeter be used on children?

A: Yes. However, we highly recommend using our children pulse oximeter instead which is specifically made for children. The finger chamber of the Pulse Oximeter may be too big for children with small fingers. This can affect the accuracy of the reading.

• UPGRADED: Added battery circuit management, more secure. Redesigned PCB, you can connect to mobile phone with Type C-Type C cable( original PCB needs OTG cable), see a clear HD image on your phone. Designed a practical and simple control application on PC, you can download touchstone(SNP) files for radio design and simulation software. Added a case, which is protective and dust-proof.
• IMPROVED FREQUENCY ALGORITHM: The improved frequency algorithm can use the odd harmonic extension of si5351 to support the measurement frequency up to 1.5GHz. The 50K-300MHz frequency range of the si5351 direct output provides better than 70dB dynamic, The extended 300M-900MHz band provides better than 60dB of dynamics, and the 900M-1.5GHz band is better than 40dB of dynamics
• MULTIPLE FUNCTIONS: The default firmware main function is used for antenna performance measurement. The TX/RX method can measure the complete S11 and S21 parameters. If you need to obtain S12 and S22, you need to manually replace the transceiver port wiring
• STRONG AND SECURE POWER SUPPLY: This VNA is battery powered or USB powered; Built in 650mAh battery, could work for 2 hours continuously, if need extra working time, it can be connected to power bank or power source.
• Package include NanoVNA host (with battery) x1, USB Type-C data cable x1, 30mm SMA male to male RG174 RF cable x2, SMA simple calibration kit x1, SMA female to female connector x1

User questions & answers

Question:	where is this made
Answer:	Yes it does! To invoke the menu touch the bottom right hand corner of the screen. It is preferable to use a plastic stylus to touch the screen - I use a cut down 5.5mm diameter knitting needle. The point needs to very blunt (definitely not a sharp point) and well rounded. This particular model of the nanoVNA is probably the best on the market currently!
Question:	Can this tool be used instead of an regular antenna analyzer like a Rig Expert
Answer:	I did not either but I did google the NanoVNA which is the same and. Saw several YouTube videos that allowed me to calibrate and use the VNA to measure SWR and actually sweep a frequency range of my choosing along with displaying the graph of my choice
Question:	Does it have a touchscreen
Answer:	The frequency of the Electric and Magnetic fields radiating from power lines (60Hz range) are a lot lower than the frequencies wireless devices transmit at. So no the Safe and Sound Pro II will not measure power lines. This will measure frequencies between 200MHz - 12GHz.
Question:	Regarding, "I could not find any concise instructions. If you google the device there is a ton of info about it. ..." Can you give some that apply
Answer:	You can determine the direction of a source with the Safe and Sound Pro II, but will not be as accurate compared to a Gigahertz Solutions RF meter that uses a Log-Per Directional antenna.

Product features

Reviewed by QEX

QEX is a Forum for Communications Experimenters, issues texts monthly.

This product was reviewed Dr. George R. Steber, he begins with a short description of some technical specifications. He includes historical details on the evolution of the product. Then, he describes the general architecture of the instrument, and finally he describes the operation of the unit and including examples.

Product description

Rigol DS1054Z Digital Oscilloscope 50 MHz DSO 4 Channels 50 MHz Analog Bandwidth Total of 4 Analog Channels Maximum Waveform Capture Rate of up to 30,000 wfms/s Includes FREE software bundle BND-MSO/DS1000Z AT-DS1000Z - Advanced Triggering Option MEM-DS1000Z - Memory Depth Upgrade REC-DS1000Z - Real Time Waveform Record and Relay Option SA-DS1000Z - Serial Bus Analysis OptionFind out why the DS1054Z is one of the top selling oscilloscopes in the WORLD since its release in September 2014. Read the reviews! Let our customers tell you what they think of this unit. Schools, companies, students and home hobbyists love the DS1054Z. Backed by a 30 day money back guarantee you cannot go wrong with this unit.Customer FeedbackI have used the scope for basic measurements so far, mostly audio signals and comparisons of such signals. It works well and the construction is as good as that of expensive top-brand items. The packaging was adequate and protects the instrument well. RIGOL has tried hard to pass themselves as a decent company to buy equipment from and they have succeeded, at least with this scope. I have used lots of lab equipment for many years in college labs and this would fit perfectly in every lab, given its low price, specifications and support. Highly recommended for tight budgets and high expectationsCustomer Submitted ImageUltraVisionRigol's innovative UltraVision technology provides a deeper memory depth of 12Mpts standard and is upgradeable to 24 Mpts (with purchase of MEM-DS1000Z). The DS1104Z-S Plus also provides the ability to quickly focus in on certain piece of a recorded waveform.Full VisibilityThe large 7 display of the DS1104Z-S Plus, with a resolution of 800 X 480 pixels makes it possible to view all channels on a single screen. This makes for better usability and more efficient analysis.Ultra-fast Sampling RateRigol has give

User questions & answers

Question:	I know it can do an fft but does it show frequencies for the harmonics in a waveform? what's the frequency resolution for the fft? thanks
Answer:	Normally the FFT is done on the screen data, so only about 1024 points. I read there is a settings to use 16K FFT points. This means the maximum FFT frequency resolution would be sample frequency/16K. The competing Siglent scope is available (2 channel version) or on (as of 12/07/17) backorder (4 channel version), and they both have a 1M FFT size, so much higher frequency resolution. The 2 channel version also has 200 Mhz of analog bandwidth. You also can download the samples, and use some external program for the FFT analysis. Another option is to spend $150 and get the home (or even cheaper student version if you're a student) version of Matlab, although I'd verify if the FFT function needs any extra packages (which cost extra). You could talk to the scope over Ethernet via LXI to read the sample data. In theory, you could make a 12M signal capture, and your FFT resolution would be sample rate/12M, so if you sample at a gigasample, that comes to 1,000,000,000/12,000,000=83 hz FFT resolution on like a 50 Mhz signal. Of course sampling 1 gigasample on a 50/100 Mhz bandwidth scope may be overkill, so you might reduce the sample rate, improving the maximum FFT resolution. Also note the window function may degrade the resolution some (like in the 2x range), depending on which window function you use. The window function with the best frequency resolution tends to also have large sidebands (spectrum leakage into FFT bins next to a peak). I think the question is how much frequency resolution do you need? At what frequency range? An oscilloscope FFT is generally not an RF spectrum analyzer. For things like audio signals, this scope may give very useful frequency resolution. Note that if you're looking at digital signals (square waves) the harmonics are all odd, and the 50/100 Mhz bandwidth runs out fast (like a 10 Mhz square wave clock, has 30 Mhz, 50Mhz, 70Mhz, 90Mhz harmonics), so 50 Mhz of bandwidth barely can show the 5th harmonic).
Question:	Trying to decide between this and ds102e 100mhz 2ch. will be used with arduinos, raspberry pi and ble peripherals. can you offer a pros/cons for each
Answer:	I definitely prefer a 4-channel scope. For example: you can see SI, SO, CS and SCLK all at the same time on a SPI interface.
Question:	This unit has 12 mpts of memory upgradable to 24 mpts, how do you do that? where can i buy this option. thank you
Answer:	RigolNA is currently (Dec 2017) including free option BND-MSO/DS1000Z which "includes serial decode, deep memory, record mode, and triggering". I don't know if this is the same as 24 Mpts or if this option is included with this item.
Question:	I'm new to electronics as a hobby.should i go with this model or the 100mhz model for the same price. the books say go with a 100 mhz scope
Answer:	Well, the hardware of the 50MHz, 70MHz, and 100MHz versions of this scope are all identical actually, with the bandwidth limited by software. If you bought the 50MHz version (this item), you wouldn't be the first person to accidentally stumble upon web pages telling you how to generate and enter a license key that unlocks 100MHz bandwidth and a few other features...What you don't want is one of the older DS1000E series scopes, as they lack intensity-graded display and have only 2 channels, not 4.

• Multiple high sensitivity sensors installed for detecting Power line, Smart meter, Cell phone, Microwave etc.
• Identify/recognize the common possible sources, such as Power line, Cell Tower, Microwave, Static etc.
• Safety suggestion lets you understand current situation instantly.
• Detects 5G network signal and RF up to 10Ghz
• Built-in RF Spectrum analyzer and GQ RF Browser for real time RF monitoring.

User questions & answers

Question:	All i want to know if this detector gq emp-390 will detect 5ghz wifi signal and 5g cell phone
Answer:	Yes it will detect 5GHz signal but not in all modes of operation. If it is the predominant source then the general Radio Frequency RF mode reading will reflect it. If it is a source mixed with others than all sources will be reported together as one value (sum/average over time...unknown. most likely average). It will not detect it in spectrum analyzer, by frequency, and show it's individual power level. Spectrum analyzer will detect 2.4GHz wifi. 5GHz is out of range of spectrum analyzer as is everything greater than 2.5GHz. It might detect presence of 5GHz data packet bytes in digital mode but I don't know for sure, have not tested this.
Question:	Can it tell you how much emf your cell phone emits
Answer:	yes it does, in 3 scales. some readings read a voltage per meter and another is electro-magnetic reading, I searched through alot and after receiving this I found it to be the best affordable technology in its class, and it even automatically identifies the difference between cell phone and power line EMF in digital readable format.
Question:	Will this device analyze a 5 gig wifi signal like it does a 2.4 or
Answer:	Yes, it does analyze 5 Ghz frequencies. If you are asking whether it will analyze 5G as in 5th generation Millimeter Waves, the answer is NO.. 5th Generation 5G will use frequencies between 30Ghz and 300Ghz... You can get one that costs about $40,000... As in, they are not available to the public .
Question:	Is the 5g wifi signal the same as the new 5g cell phone signal? will it measure the new 5g phones? it is confusing: it says: "rf up to 10 ghz
Answer:	The 5G wifi is referring to 5Ghz Wifi, and it is covered by this meter RF band. The 5G cell phone network is referring to 5th Generation cell phone network, it is nothing to do with 5GHz, basically its base band is much higher than 5Ghz

Product features

New display maximizes the amount of information

• All-in-One display lets you see reading from all sensors at once.
• Advanced features and multi-sensors to ensure best detection from EMF, EF and RF.
• Compact design for easy testing and measurement.
• Safety suggestion lets you understand current situation instantly.
• Radiation source recognition provide fastest way to find out the radiation source.

Classic display option is quick to adapt application

• With traditional analog style display, the data becomes even easier and faster to understand.
• Left and right vertical bars are also indications of the EF and EMF radiation level in glance.
• Safety suggestion in large font for easier reading.
• Real Time clock displays current time for time sensitive testing.
• Front LED visualizes alarm when triggered.

Real-Time EMF EF Graph

• Presents exact changes of EMF and EF radiation level been detected in past 45 seconds.
• The right side of graph shows a reading for both EMF and EF.

RF Spectrum Analyzer

• Advanced users are able to use built-in RF Spectrum Analyzer to discover the RF signal power in a specific frequency.
• This graph shows two RF signal that has been detected at same time: Microwave oven and WiFi signal.

RF Browser

• GQ RF Browser is a unique feature of GQ EMF detector. The real-time graph is based on high sensitivity sensors.
• This graph shows a close by cell phone that just received a text message.

Real-Time Power Distribution Histogram

• RF power distribution is another important factor to let us understand how the RF radiation power distributed during the period.
• This graph shows the highest RF power is 6.47% of total at 0.049 milliWatts per square meter during the testing period.