Reviews High Frequency Module

High Speed Comparator High Speed Frequency Meter Front Shaping Comparator for Low-Voltage Applications Conversion Circuit

LOW VOLTAGE APPLICATIONS -- The input common mode range is better than the swing input, which is very suitable for low voltage applications..
APPLICATION -- Digital module can be used for wide voltage range and periodic signal shaping..
FRONT END ADJUSTMENT -- Used as a front end conditioning module in time domain measurements for frequency and phase difference..
PARAMETER -- The input voltage is 10 to 1000mV, the input frequency is about 200MHz DC, and the input impedance is 50 ohms..
RAIL TO RAIL OUTPUT -- The output level mode is rail to rail output, which can directly drive TTL / CMOS level..

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JUNSHUNTONG HF VFO for Ham SDR QRP Transceiver,20K-220MHz RF Generator Superheterodyne Receiver Debugger,Tcxo Clock,S-Meter, 20 Band presets

【HF VFO /RF Generator 】It has 10kHz to 220MHz working ranges. 0.5PPM high precise Tcxo clock, the frequency is more accurate. Tuning step of 1Hz, 10Hz, 1kHz, 5kHz, 10kHz and 1MHz..
【VFO for Ham SDR HAM QRP Transceiver】 Used as a local oscillator on Homebrew radio receivers (such as superheterodyne, SDR, direct conversion and Homebrew QRP transceivers) ， a simple RF/clock generator for calibration reference or clock generation，a common 128x64 I2C OLED SSD1306 display and Si5351 module..
【Adjustable】Intermediate frequency (IF) offset (+ or -) is adjustable.The bar graph of the signal meter through the analogs input (ADC).I2C data transmission, only need 2 lines it can be connected to the display, with high stability and accuracy of frequency generation.
【20 Band Presets】Equipped with generator function mode.Initial frequency, end frequency, sweep-frequency-step can be set. 20 band presets (shortcuts) for BCB and HAM frequencies.RX/TX mode selector for Homebrew QRP transceivers..
【 Guarantee】 We providing 100% satisfactory service to every customer to make sure our customer can purchase with confidence. If you have any questions, please contact us, we will reply and improve in time..

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AD834 Four Quadrant Multiplier Radio Frequency Mixer Module Multiplier Signal Processing for Mixers Filters

【High Quality】The quadrant multiplier is made of high quality meterial, adopts the differential balun to single‑ended structure, can effectively suppresses harmonics..
【Feature】The quadrant multiplier module is compact design, easy to carry and store, works well for differential merging and making the output signal symmetrical..
【Advantage】AD834 Quadrant analog multiplier is an important component of modern signal processing systems, 1.6mm / 0.06in Thickness PCB double panel to ensure good passing performance of small and large current..
【Application】The radio frequency module multiplier is practical in work, widely used in phase‑locked loops, signal processing power of mixers, filters..
【Quality Assurance】The product is manufactured under strict quality control and standard requirements, and has a high safety factor, so it can be used with confidence..

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2PCS DC-DC Boost Converter, DC-DC 3.3V-13V to +15V/-15V Positive Negative Dual Step-Up Converter Board

This boost converter module can convert DC 3.3V~13V to DC ±15V..
The boost converter module can output positive and negative voltages..
Working Frequency: 400kHz, and the power module is automatically raised and lowered..
The boost converter module can be widely used as power supply for for ADC, DAC, LCD, and etc..
Maximum Input Current: 1.8A, Maximum Output Current: +Vo 600mA,-Vo 120mA, Quiescent Current: 3-4mA.

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Synthrotek, Erica Synths Swamp DIY Kit

The SWAMP is a random CV and audio generator inspired by the famous Wiard Wogglebug module..
External audio input routed to ring modulator..
Clock input and output to sync the module to your modular system.

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Display Digital Signal Frequency Counter PLJ 6LED H LED Signal Generator Cymometer Tester Frequency Measurement Modules Adjustable Module 0.1~1000MHz(Backlight Font red)

Test Accuracy: The frequency meter is designed with dual intermediate frequencies. The intermediate frequency value and the addition and subtraction mode can be preset separately without affecting each other, which can achieve high stability and high resolution. The tester has good sensitivity, better than 60mVPP.
Excellent Performance: The frequency reference uses a temperature compensated voltage controlled crystal oscillator. The display driver adopts LED display special chip, the digital tube has high brightness and less external interference.
Small and Convenient: This module is compact and exquisite in design, can be put into a pocket, does not occupy extra space, is convenient to carry, and has reliable performance, good visual effects, and low cost.
Convenient to Operate: The circuit of the frequency meter is simple, the design structure is reasonable, and the unique two key control method and precise time algorithm are used to make the operation simple and fast.
Multi Function: The circuit is simple, the structure is reasonable, double button control, and the operation is simple. Each setting is automatically saved, and the power is on.

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DGZZI 50pcs Blue 5mm Pitch PCB Mount Screw Terminal Block Connector for Arduino (20pcs 2 Pin + 15pcs 3 Pin + 15pcs 4 Pin)

Application: crystal oscillator, IC socket, DIY PCB universal board, Dupont wire, digital tube, buzzer, Arduino UNO board, PIC programming unit, AVR ATMEL programming unit, connector suite, USB TO TLL module, power module, LCD module, RS232 TO TLL module..
Package includes: 20 x 2 Pin Screw Terminal Block + 15 x 3 Pin Screw Terminal Block + 15 x 4 Pin Screw Terminal Block.

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WSDMAVIS 1Set Ceramic Discs Mist Maker Atomization Plate with 5V Mini USB Humidifier Module Integrated Circuit Board Driver with Timing Switch DIY

High frequency oscillation,more finer particles,large and stable atomization amount, timing shutdown..
USB humidifier special micro hole atomization film, surface anti-oxidation silver layer protection coating, the front side is white piezoelectric ceramic ring, the back is all steel material, waterproof solder joint, to prevent open circuit..
Diameter of outer silicone ring: about 20mm.
Our atomizer plate with 5V frequency driver board, it is more convenient compared with other product. You can start the board via the button after power the module.The atomizer plat should be used with the same frequency circuit board so as to achieve the ideal spray volume..
Please refer to the picture for the detailed information of the circuit board structure diagram, wiring diagram and atomizer size diagram..

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Abovehill 12V Wireless RF Remote Control Relay Switch Universal 1-Channel 315MHz Receiver with 1 Transmitters for Garage Door Openers, Cars, LED Lights & More

...e control distance of the open space is 30 meters, which will reduce the control distance in the case of interference or wall blocking. The specific situation is determined according to the site..
[Wireless Remote Control Module] It is a single-channel control module with a working voltage of 12V DC and an operating frequency of 315mhz. It can directly drive DC0-30V/80-250VAC load, and the relay can withstand up to 10A.Remote control uses 12V 23A dry battery(No battery)..
[Wireless Remote Control Module] Its coding type is fixed code and learning code. The control mode is three modes: jog, self-lock and interlock. Delivery defaults to jog mode. If you need to switch to self-locking or interlock mode. You need to change the contacts labeled “L” and “T” on the back of the receiving module..
[Wireless Remote Control Module] It also has learning and deletion capabilities. The operation is very simple and detailed in the product description..
[Wireless Remote Control Module] A wide range of applications, from simple home remote control to autonomous control, such as windows, entrances, garage doors, alarm systems, lifting equipment, etc. Note: If you encounter any problems, please send us an email and we will be here to help you. Thank you..

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