POPLAR DIY Shortwave PLL Transceiver Kit 7 0000 to 7 1000 MHz Frequency Range
DESCRIPTION


Features:

1. Employs an STC8H1K17 microcontroller as the main control circuit, with a built-in PLL local oscillator and a frequency indication circuit (using a seven-segment LED display, showing 100Hz increments; color difference is visible in the photo, currently displaying red). Operating frequency range is 7.0000-7.1000MHz, supporting CW mode with 100Hz/5kHz increments (automatic switching).

2. The receiving section uses a direct frequency conversion circuit. A TA2003 is used for receiving and mixing, outputting the audio signal to a 4558 for filtering, and then to an LM386 for amplification.

3. Employs a Class E circuit for transmission, with an output power of 5W.

4. Our original code includes an onboard digital volume control potentiometer, supporting automatic configuration saving, side-channel frequency and volume adjustment, and for crystal oscillator frequency calibration.

5. 12V power supply, PCB size 71 * 100mm, easily fits in a 76 * 35 * 100mm aluminum chassis.


Specifications:

Part Name: POPLAR Shortwave PLL Transceiver DIY Kit

Model: POPLAR

Material: ABS

Size: As shown

Color: Black

Power Supply: 12V

Operating Current: Receive Current ≈ 100mA @ 12V; Transmit Current ≈ 700mA @ 12V

Frequency Range: 7.0000-7.1000MHz, Step Frequency 100Hz/5KHz

Operating Mode: CW


Package Contents:

1 set of POPLAR Shortwave PLL Transceiver DIY Kit


Note:

Due to differences in monitors and lighting effects, the actual color of this item may be slightly different from the color shown on the picture. Thank you!

Please allow 1-2cm measurement deviation due to manual measurement.





POLICES

 

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