Synthesizer frequency Si5351 transceiver for shortwave. The development of our UT5QBC UV7QAE and colleagues.

Synthesizer of microcontroller assembled on STM32F100C8T6B, all the information is displayed on the color display size of 1.8 "

Small dimensions of the PCB (85mm x 45mm) allow its use in small constructions transceiver

 

Output CLK0 - frequency VFO.
Out CLK1 - SSB BFO frequency.
Out CLK2 - frequency CW BFO
You can set the frequency with reverse transmission in "SYSTEM MENU" option "TX REVERSE".

The signals at the outputs of the option "TX REVERSE" = ON,

OUTPUT RX TX CW RX CW TX
CLK0 VFO SSB BFO VFO+CW SHIFT ---
CLK1 SSB BFO VFO CW BFO VFO
CLK2 --- --- --- CW BFO



Buttons.
Up, Dn - Up, down the ranges menu.
Mode - LSB Shift, USB, CW in the operating mode, the menu for fast input frequency.
Menu - Input / Output menu.
Selecting the functions of the buttons in the "SYSTEM MENU" option "BUTTON MODE".
VFO, Step - Switch VFO A / B, step frequency tuning. The menu changes the value.
Or.
Inc (+), Dec (-) - restructuring the frequency in operation. The menu changes the value.

Entrance to the "USER MENU" short press Menu button.
Entrance to the "SYSTEM MENU" press and hold the Menu button more than 1sec.


 USER MENU.

01.FREQUENCY STEP 1/5/10/50/100/500/1000 Hz Step frequency tuning
02.ENCODER DYNAMIC SPEED ON/OFF Dynamic speed frequency hopping.
03.ENCODER DIVIDER 1-300 Divider Encoder. Frequency Hopping on one turn of the encoder.
04.RIT ENABLE YES/NO Switching on and off the RIT.
05.RIT SHIFT +-1000Hz frequency offset receiving.
06.CW SHIFT 100Hz - 1500Hz The tone of the CW reception.
07.CW TX TIMEOUT 0ms - 1000ms The delay time after the key is released to return to receive.


 SYSTEM MENU.

01.ENCODER ENABLE YES/NO VFO/Step or Frequency
02.ENCODER REVERSED YES/NO Reverse encoder
03.INPUT VOLTAGE DIVIDER 4-12 The input voltage divider 4 - 12
04.OUTPUT CURRENT OUTPUTS 2mA - 8mA Adjustable output voltage CLK0, CLK1, CLK2 setting output current.
05.TX OTPUT REVERSED ON/OFF Reverse Output frequency VFO and BFO transmission.
06.BANDWIDTH FILTER SSB 1000Hz - 10 000Hz SSB band pass filter.
07.BANDWIDTH FILTER CW 100Hz  - 1000Hz CW band pass filter.
08.VFO FREQUENCY MODE FREQ+IF,FREQ,FREQx2,FREQx4 CLK0=VFO+BFO, CLK0=VFO, CLK0=(VFOx2), CLK0=(VFOx4)
09.FREQUENCY BFO LSB 100kHz - 100mHz IF LSB rate.
10.FREQUENCY BFO USB 100kHz - 100mHz IF  rate USB.
11.FREQUENCY BFO CW LSB 100kHz - 100mHz IF  rate  LSB CW.
12.FREQUENCY BFO CW USB 100kHz - 100mHz IF  rate  USB CW.
13.FREQUENCY Si5351 100kHz - 100mHz Clock frequency Si5351a (correction).
14.BINARY CODE ENABLE YES/NO To form conclusions on the management of binary code decoder / multiplexer.
15.DECODER CODE YES/NO Binary code decoder for another code for FST3253 multiplexer.
16.S-METER VALUE 1 0mV - 3300mV Calibration S Meter.
17.S-METER VALUE 9 0mV - 3300mV Calibration S Meter.
18.S-METER VALUE +40 0mV - 3300mV Calibration S Meter.
19.ALL BANDS 1MHz-30MHz YES/NO Solid range 1 - 30 MHz. WARC 30M, 16M, 12M.
20.BAND WARC STATUS ON/OFF Only mode RANGE 1-30MHz = YES
21.BAND 160M ON/OFF Selecting the radio operating range (the receiver)
22.BAND 80M ON/OFF Selecting the radio operating range (the receiver)
23.BAND 40M ON/OFF Selecting the radio operating range (the receiver)
24.BAND 20M ON/OFF Selecting the radio operating range (the receiver)
25.BAND 15M ON/OFF Selecting the radio operating range (the receiver)
26.BAND 10M ON/OFF Selecting the radio operating range (the receiver)
27.LSB MODE ON/OFF The choice of modulation transceiver (receiver)
28.USB MODE ON/OFF The choice of modulation transceiver (receiver)
29.CW MODE ON/OFF The choice of modulation transceiver (receiver)
30.SHUTDOWN LOW VOLTAGE ON/OFF Auto power off, saving the current data.
31.LOW VOLTAGE 5.0V - 14.0V The threshold voltage auto shutdown.
32.RCC STATUS RCC HSI/RCC HSE Clock source, internal / Quartz.


To control decoder / multiplexer uses pins BAND 160, BAND 80, BAND 40, BAND 20 (See diagram).

Control outputs.
Pin BAND 160 = DATA1/A
Pin BAND 80 = DATA2/B
Pin BAND 40 = DATA4/C
Pin BAND 20 = DATA8/D

Binary code decoder.

BANDS Pin BAND 160 Pin BAND 80 Pin BAND 40 Pin BAND 20
01.BAND 160M 0 0 0 0
02.BAND 80M 1 0 0 0
03.BAND 40M 0 1 0 0
04.BAND 30M 1 1 0 0
05.BAND 20M 0 0 1 0
06.BAND 16M 1 0 1 0
07.BAND 15M 0 1 1 0
08.BAND 12M 1 1 1 0
09.BAND 10M 0 0 0 1

Author Website design

Branch design topics in the forum

The software for this device is used with the permission of the authors.

Shipment within 14 days.

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Kits - Frequency Synthesizer on the Si5351 for short-wave radio.

  • Product Code: Microb 01 r3
  • Availability: In Stock
  • $43.00


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