Our original "planet" short wave PLL transceiver Kit Start selling. Please shoot directly if you like. Thank you for your support 2021-10-18
Main indicators
Power supply: 12V
Working current: receiving ? 120mA @ 12V; Emission ? 1A @ 12V
Transmitting power: 5W @ 12V
Frequency range: 7.000mhz-7.100mhz, 1kHz / 100Hz step
Working mode: CW transceiver, SSB receiver
Purchase instructions:
A. all kits in our shop need to be welded and debugged by the buyer;
B. There are risks in the installation of kit ,please correctly evaluate your technical level and instruments and equipment to avoid unsuccessful assembly and adjustment of kit;
C. The due to malicious plagiarism, the kit does not provide the circuit diagram of the pre welded module, nor the source code or firmware of the single chip microcomputer;
D. kits are shipped with scattered electronic components. The pictures of finished products displayed by our store are only for reference when purchasing;
E.The aluminum alloy shell is not perforated
It has the following characteristics:
1. The patch device of the main control board has been pre welded and connected to the base plate in the form of stamp hole. The single chip microcomputer adopts pic16f1938, with built-in PLL local oscillator, supports crystal oscillator calibration setting, and has its own frequency indication circuit (Seven Segment LED nixie tube is used, the display unit is 1kHz, the photo has color difference, and the actual color is red). The working frequency covers 7.000-7.100mhz, 1kHz or 100Hz steps (refer to the figure below for free switching).
![](https://ae01.alicdn.com/kf/H3dc03a079ce94a7aa5bf4573d46f3852i.jpg)
![](https://ae01.alicdn.com/kf/H2bee06338dc84e0a9a240320779e47f9W.jpg)
2. Ta2003 mixer is used for reception, and crystal filter is used for if. After ta2003 multiplication detection, the sound size is adjusted by digital potentiometer and sent to audio active filter circuit. Finally, LM386 drives speaker, and if frequency supports calibration setting.
3. Use 3 bs170 parallel outputs, class E amplification, 12V power supply, output power 5W
4. Relay switching is used for transceiver, with the function of transmitting delay adjustment to avoid frequent relay switching and improve the isolation of transceiver channel.
5. It has the function of automatically sending call signs, which is very convenient to use. The MCU uses the original code of our store, which can adjust the code speed, sidetone frequency and sidetone size. It can input the call sign by itself (in automatic key mode) and support power down saving.
6. The PCB board of this kit can be conveniently put into the 88 * 30 * 120mm aluminum chassis (the shell needs to be prepared by itself, and the opening size of the front and rear panels is in the mesh disk).