Audio Frequency Counter
- Displays count and frequency or time period
- Graph of input signal, 2.5 ms/div up to 640 ms/div.
- Gate time of 0.1s, 1s, 10s or 100s.
- AC or DC coupling
Gain Express VC3165 Radio Frequency Counter 0.01Hz2.4GHz w/BNC Test Leads, High Resolution Professional RF Signal Meter Tester, 8 Digits LED Display
Frequency counter that measures signals over a wide range of 0.01Hz - 2.4GHz. Gate time that is continuously varying from 100ms-10s. All functions depend on a single CPU. It has a crystal-controlled temperature circuit that provides a constant compensation for temperature change, reduces the measurement errors.
* Switch from 110V to 220V (vise versa)
* 5W max consumption
8digit LED display
3step function selections
Channel B input has an attenuator(x1,x20)
AC/DC coupling for low-pass filter
2 Input Channels: Channel A for 0.01Hz-50MHz ; Channel B for 50MHz-2.4GHz
Channel A (0.01Hz to 50 MHz)
* Freq range: DC couple 0.01-100Hz ; AC couple 100Hz-50MHz
* Sensitivity: "DC" 0.01-1Hz = 500m Vp-p, 1-100Hz = 80m Vrms, "AC" 100Hz - 50mHz = 80m Vrms
* Input impedance: 1 M?
Channel B (50MHz - 2.4GHz)
* Freq: 50MHz - 2.4GHz
* Sensitivity: 50MHz-1.2GHz = 80m Vrms, 1.2-2.4GHz > 80m Vrms
* Coupling: AC only
* Input Impedance: 50?
Resolution depends on gate time control setting
* Short time stability: 3 x 10-9/sec
* Long time stability: 2 x 10-8/month
* Temp drift coefficient: 1 x 10-7, 10-40C
* Line voltage variation: 1 x 10-7 for line voltage 10
Gate Time: Continuously variable from 100ms - 10s
Precision: standard time error (t) x frequency (f) 1d
Power: 110V and 220V
Preheat time: 20min
Operating environment: 0-50C, 10-90RH
Size and Weight: 270 x 215 x 100mm, approx. 1.6kg
1 x Frequency Counter
1 x Power Cord
English User Manual
Test probe w/ BNC connector
- Channel B (50 MHz to 2.4 GHz) and Frequency : 50 MHz - 2.4 GHz with 8 digit LED display and Crystal-controlled temperature circuit
- 2 Input Channels : Channel A for 0.01 Hz to 50 MHz ; Channel B for 50 MHz to 2.4 GHz
- 3 steps function selection: work state, unit & 8-digit LED display and Frequency measurement 0.01Hz-2.4GHz
- Channel A (0.01Hz to 50 MHz) and Frequency range : DC couple 0.01 Hz to 100 Hz ; AC couple 100 Hz to 50 MHz
- Cyclic measurement range 0.5ms-10s
* Attenuation of 20dB and input impedance of 1MO with Frequency, period, equal-precision measurement
Texas Ranger SRA-166FB Frequency Counter Extension Speaker ( CB Radio / Amateur Radio )
This SRA-166FB is a high quality speaker made of durable long lasting material with excellent audio output. Just plug it in the back of most transceiver radios ( with a PA Jack ). Frequency counter is a universal frequency counter. Designed for CB and Amateur radios with a frequency counter jack port on the device.
- 3" Inch Speaker 4 ohms
- 15 Watt Max Power
- Blue LED Light
- 6.5 Foot Cord
- 3.5mm Speaker Jack / 6 Pin Frequency Counter Plug
Frequency Counter, RISEPRO Digital Bench Frequency Signal Meter with AC Power Cable BNC Test Leads 10Hz - 2.4 GHz VC3165
This frequency counter measures signals over a wide range from 0.01 Hz to 2.4 GHz. The gate time is continuously varying from 100ms to 10s. The maximum power consumption is only 5W.
The instrument provides high performance stability and function at low cost. The counter can measure frequency, period and equal-precision. It is also featured with 3 step function selection, work state, unit and eight-digit LED display.
All functions in this frequency counter depend on a single CPU. A crystal-controlled temperature circuit provides a constant compensation for temperature change, thus reducing measurement errors typically caused by temperature drift. The Channel B (CH. B) input has an attenuator (x1, x20), AC/DC coupling for a low-pass filter.
One Set Included
- With 3 steps function selection: work state, unit & 8-digit LED display
- Frequency measurement from 0.01 Hz to 2.4 GHz
- Cyclic measuring range from 0.5 ms to 10 s
- With attenuation of 20 dB and input impedance of 1 MO
- With frequency, period and equal-precision measurement
Semoic FG-100 DDS Function Signal Generator Frequency Counter 1Hz - 500KHz
Semoica legal trade mark, has been registered. Only those who are authorized are available to sell items under Semoic. Semoic will bring you joyful shopping experience. FG-100 DDS Function Signal Generator Frequency Counter 1Hz - 500KHz
Maximum output amplitude: /- 10Vpp (no-load)
Output impedance: 50Ohm/-10
Dc bias: /- 10V (no-load)
Resolution: 1 Hz
Power supply: DC 3. 5-10V
Output frequency range:
Sine wave: 1Hz-500KHz
Square-wave: 1 Hz - 20kHz (the valid range)
Triangular wave: 1 Hz - 20KHz (the valid range)
Sawtooth wave: 1 Hz - 20kHz (the valid range)
Material: PC metal
1 * FG-100 DDS Function Signal Generator
1 * USB power adapter cable
1 * English manual
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.
- Small size, multiple functions, simple operation, easy to carry.
- With an oscilloscope, which can be used in electronic circuit experiment and debugging, the frequency characteristics of audio amplifier and pulse response of test and measurement.
- Due to the good precision of DDS and frequency stability, is also very suitable for oscilloscope sweep time calibration factor. Square wave output also suit for oscilloscope attenuator and probe pulse adjustment, etc
- The main output waveform: sine wave and square-wave, Triangular wave, sawtooth wave.
Victure 1080P FHD WiFi IP Camera Wireless 2.4 G WiFi Security Panoramic Viewing Camera with Motion Detection, 2-Way Audio, Night Vision, Home Surveillance Monitor for Baby/Pet/Elder
We stand behind the quality of our product and if for any reason it fails within the first 12 months of warranty we will replace it.
If you have any questions, email customer service at [email protected] We ensure 100 satisfaction and we will do our best to resolve the problem.
1.Only support 2.4G wifi.if not sure about that,please disable 5G wifi.
2.Public wifi and wifi extender are not supported
3.The password of wifi should be less than 16 words and not contain special characters.
4.There'd better no wall between camera and router.the distance should better less than 10m.
5.If fail in connecting,please reset and try again when indicator flash red.
Micro SD card tips
1.32G-64G card at C10 is best
2.Insert card when out of power
3.Refresh setting information in the setting of menu
1.App only support Android/IOS of phone
2.PC software only support windows system
Two way Audio tips
1.Please turn on the ringtone of phone before using two way audio
Camera placement tips
1.Please don't place the camera outdoor or beside glass
Size: 93*114.5 mm
Application: iOS & Android
TF card(NOT INCLUDE): 8-64G/C10
Resolution: 2 million pixels, 1920x1080(1080P)
Infrared light: 850nm 10PCS, range up to 30 feet
Night Vision: IR-CUT Filter will switch automatically
WiFi LAN Frequency: 2.4GHz, WPA2 encryption, IEEE802.11b/g/n
Functions: anti-noise, 2-way audio, night vision, motion detection
1. Victure Wifi Camera*1
2. Pan-tilt device*1
4. 4.92ft power cable*1
5. Power plug*1
6. User manual*1
- FHD-1080P-1920*1080 resolution, 6G lens, can produce crystal clear image quality. Only supports 2.4G WiFi signal,it can't supports 5G WiFi signal.
- Fluent 2 Way Audio Anti Noise- Support remote real-time monitoring of Android, IOS and PC smart terminals. You can also talk to people near the camera while observing the situation in front of the camera.
- Smart Motion Detection-While monitor movements, wifi camera will send notification to your mobile phone to prevent your home from invasion.
- Advanced Night Vision-10 pcs 5mm IR LEDs extend the viewing distance up to 30 feet in the darkness to bring you a super night vision experience. Day and night surveillance, 24 hours to protect your home.
- Micro SD Card Storage-Micro SD card storage supports up to 64GB(not included) at C10, Please format the card with app before using.
NSKI Mini Radio Frequency Meter With CTCSS/DCS Decoder or Handheld Portable Frequency Counter NSKI-560S Text Walkie Talkie
Mini frequency counter:
The said frequency counter can continually test the analog radio signal (handhold radio, wireless phone, etc) and digital radio signal, to display the frequency parameter with the signal strength. This is the best tools for the signal testing and radio maintenance.
Frequency step : 200k (digital radio signal), 1k, 100Hz.
Testing distance: UHF: 8m, VHF: 5m.
Testing range: 100-520MHZ
Antenna: fixed antenna
Battery: 9V 6F22 (Internal 3.7 volt rechargeable battery)
Auto power off time: 2 mins. (except for the digital signal gear)
The charger: 5 volt
the only one button with all functions.
the 1st pressing to turn on
welcoming--release the button return to powering off mode --continually pressing
to choose the 200k step-release button , 200k mode for digital radio --continually pressing
to choose the 1k step -- release button , 1k mode for faster testing --continually pressing
to choose the 100Hz step - release button, 100Hz mode for accurate testing --continually pressing
turned on (1k or 100Hz mode) turned on (200k mode)
press quickly and release normal pressing
to lock the screen display "Bye Bye"
press quickly again and release release the button, then power off.
unlock the screen
continually pressing for 2 sec or more
display "Bye Bye"
release the button, then power off.
- CTCSS/DCS Decoder
- Fits for 1-30W Radio
- Quick Search, driving records,
- Battery: 9V 6F22 (Internal 3.7 volt rechargeable battery)
Banglijian Hearing Amplifier Rechargeable Ziv-201 High Quality Digital BTE Small Size
Our hearing amplifier is convenient and durable to wear. It runs with high quality rechargeable lithium battery, Its great battery runs around 20-24 hours continuously after fully charged. It can be charged via USB cable.
Frequently Asked Questions
Question one: Why there is the whistling sound?
1. The ear plug is too small.
2. The ear plug is not really inserted into the ear canal.
3. The sound tube isn't connected tightly with the ear plug.
4. The sound tube isn't connected tightly with the ear hook.
Question two: Why there is noise?
If you hear noise, it may be the sound of the current,
which needs time to adapt to, please understand.
If you increase the volume, the sound of current will also
be increased more obviously like the sound of wind.
If it still can not help, please try to switch the programs.
Generally, it takes 20 -30 days to get used to the sound. Please try to adapt to it. If you cann't, our quality commitment is "3 months Hassle Free Return policy, 3 year on hassle warranty!".
When you first use this product, please charge the batter fully.
Please turn off the power before assembling the hearing aid.
1 Banglijian Hearing Amplifier
1 Shockproof Case
3 Ear Plugs (small, medium, large)
1 Sound Tube (For a better customer experience, you will receive 2 more sound tubes)
1 Cleaning Brush
1 Power Adapter
1 USB Cable ( Can use Power Bank-5V,1A output )
1 User Manual
- EASY USE AND COMFORTABLE FEATURE: Our hearing amplifier designed by audiologist is easy, durable, and comfortable to wear in either of the ears. Note: This PSAP device is not recommended for individuals with severe or profound hearing problem, this item contains only one device.
- RECHARGABLE FEATURE: Our hearing amplifier saves your trouble to buy button batteries frequently. And it is environmental-friendly.
- EXCEPTIONAL FUNCTIONS: Our hearing amplifier has a full digital tone quality for low audio distortion and clearer voice. It also has a noise reduction feature that helps the user hear with maximum clarity. It's with full digital circuitry and adjustable volume control. There are two process choices for noisy and quiet environment, which is more efficient and practical.
- GIFT DESIGN: Our hearing amplifier is offered with exquisite packaging and complete accessories. We provide the best storage protection.
- QUALITY COMMITMENT: 3 months Hassle Free Return policy, 3-Year Manufacturer Warranty! Any questions, please contact us.https://www.amazon.com/ss/help/contact/?_encoding=UTF8&marketplaceID=ATVPDKIKX0DER&ref_=v_sp_contact_seller&sellerID=AI8IIFF9K7W24
Parts Express RF Signal Generator
Generates 100 kHz to 150 MHz in 6 bands and up to 450 MHz on third harmonics. /- 3 dial accuracy. RF output: 100mV RMS to 35MHz. Audio output: 1 kHz at 1V RMS. Modulation: internal 1 kHz, external 50 Hz to 20 kHz.
- Dimensions: 6" H x 10" W x 5" D. Net weight: 6 lbs.
Koolertron Upgraded 30MHz DDS Signal Generator Counter,High Precision Dual-channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (30MHz)
High frequency precision up to 10-6 orders of magnitude.
Full range of 0.01Hz frequency resolution.
Minimum amplitude resolution can be up to 1mV.
Duty cycle of each channel can be adjusted separately. Precision can be 0.1.
Sine Wave: 030MHz
Square & Triangle Wave: 015MHz
Pulse & Arbitrary & TTL Digital Signal Wave: 06MHz
Square rise time: 25nS
Frequency accuracy: 20ppm10-6
Frequency stability: 1ppm10-6/3h
Waveform: Sine, Square, Triangle, Pulse (duty-cycle correction), Partia Sine, CMOS, DC level, Half-wave, Full-Wave, Pos-Ladder, Neg-Ladder, Noise, Exponential Rise, Exponential Fall, Tone, Sinc Pulse, Lorentz Pulse, and 60 kinds user defined waveform.
Amplitude resolution: 1mV
Amplitude stability: 0.5/5 h
Amplitude flatness: 5(<10MHz); 10(>10MHz)
Frequency Meter Function:
Frequency measurement range: 1Hz100MHz
Measurement accuracy: Gate time continuously adjusted between 0.01S10s
Counting region: 0-4294967295
Coupled mode: 2kinds Coupling modes, DC and AC
Counting mode: Manual operation
1 x DDS Signal Generator
1 x USB Cable
1 x Power Adapter
2 x Q9 Cable
1 x CD
- Arbitrary Waveform Generator adopts large scale FPGA integrated circuit and high speed MCU microprocessor. The internal circuit adopts active crystal oscillator as benchmark. So the signal stability is greatly strengthened.
- Using Dual-channel DDS signal and TTL electric level output to generate precise, stable, low distortion output signal. includes Sine wave, Square wave, Triangle wave, Sawtooth wave, Pulse wave, white noise, user-defined waveform etc. each channel can be independently set the parameters.
- With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions.Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function.
- Storage feature: You can store 99 groups instrument state parameters set by the user, can be called up to Reproduce. Frequency output of Sine wave can be up to 30MHz. 200MSa/s sampling rate. It has 60 positions for saving user-defined waveform. Waveform Length of each one is 2048 and vertical resolution is 14 bits
- This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research.
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