CW Transceiver Telegraph Shortwave Radio Ham Radio KIT For Rock Mite PLL Versi

Description

CW Transceiver Telegraph Shortwave Radio Ham   Radio KIT For Rock Mite PLL Versi
Description
Function:
prompt:
1. This is a set of machines, you need to weld yourself
Please confirm your technical level and equipment to avoid unsuccessful assembly and adjustment of the kit;
This kit has the following features:
1. Use PIC18F1320 single-chip microcomputer as the main control, built-in PLL local oscillator module (pre-welded, stamp hole plate, support calibration setting), and built-in frequency indicator circuit (using seven-segment LED digital tube, the display unit is 1KHz, the photo has color difference, The actual color is red), the working frequency covers 7.000-7.100MHz, 1KHz or 100Hz step (refer to the figure below, free switching).
2. The receiver uses NE602 for direct frequency conversion, and the output is connected to 4558 active filter circuit. The solution is mature and reliable.
3. Use 3 BS170 parallel outputs, high-efficiency Class E amplification, 12V power supply output power 5W!
4. Relay switching is used for sending and receiving, with the function of delay adjustment of sending report, which avoids frequent relay switching and improves the isolation of sending and receiving channels.
5. With the function of automatically sending call signs, it is very convenient to use. The single-chip microcomputer uses the original code of our shop, can adjust the code speed and side tone frequency, can input the call sign by itself (in the automatic key mode), and support power-off storage.
6. The PCB board of this kit can be conveniently put into the 88*30*120mm aluminum case (the shop will customize the octopus case in the future).
main indicators
Power supply: 12V
Receive quiescent current: 100mA @ 12V
Transmitting power: 5W @ 12V
Frequency range: 7.000-7.100MHz, 1KHz/100Hz step
Working mode: CW
Circuit principle
The receiving part uses NE602 to directly mix the radio frequency signal, and then the 4558 performs active audio filtering, which is a typical direct conversion receiver. Among them, the mute circuit formed by 2SK30 is used to turn off the receiving when transmitting.
The transmitting part uses 74HC08 as the driving circuit, which is connected in parallel to buffer and amplify, and drives BS170 as output. After amplifying, it is connected to the antenna after LPF.
Package Contents
1 X
CW Transceiver Telegraph Shortwave Radio Ham   Radio KIT For Rock Mite PLL Versi
If you have any questions, please contact us in time, we will help you deal with the problem for the first time.
Shipping
Item will be shipped within 24 -48 hours after full payment is received.
Normally the shippment to worldwide is used to take 15 to 30 business days, exclude Sat & Sun.
Payment
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Payment must be received in 7 business days of auction closing.
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We greatly appreciate your POSITIVE feedback. Please do NOT leave negative or neutral feedback without any contact.