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 Amateur Radio Wireless Projects: Signal Generator
 1-160MHZ Signal Generator / VFO using Si5351

A Project by:

Tony / I2TZKFrank / K7SFN , Dinesh / VU2FD


1MHZ to 160MHZ Digital VFO:

Si5351 Based 1 to 160MHZ Signal Generator:

SIGEN-0517 is a dual signal generator with following useful features:

1 Si5351 Signal Generator at 25MHZ
2 Two Independent signal generation from 1 to 160MHZ
3 Encoder for tuning, 1HZ to 1MHZ Steps Configurable.
4 Two Button Simple Menu Operation (User + Config)
5 IF OFFSET, Plus or Minus Values 
6 Signal CLK0 is displayed on LCD
7 Second Signal (CLK1) from 1 to 160MHZ for 2nd IF etc.
8 Variable tuning steps from 1HZ to 1MHZ
9 2 X 16 LCD
10 Uses PIC18F25K22 Micro Processor
11 Receiver S Meter Option at PIC PIN2
12 Auto LCD Back Light OFF to save power
13 Internal 3.3V regulator and PCA9306 I2C Chip
14 Small Size: 14CM X 4CM Glass epoxy PCBs
15 Works on 5V DC
16 Option to use SMA Connectors for signal output or direct coax connect

SIGEN-0517 Board:

Click to enlarge

Now a small 7805 Board is available to power this signal generator. Click to view 7805 Board

 SIGEN-0517: Tech Information Documents


SIGEN-0517 Tech info document 0-500MHZ RF Sensor Document
SIGEN-0517 CONFIG 0-500MHZ RF Sensor Document
SIGEN-0517 Schematic   JPG
Si5351 Module (M1) Schematic JPG
SIGEN-0517 Kit Parts List 0-500MHZ RF Sensor Document
 SIGEN-0517 Firmware and  Update Document
SIGEN-0517 FW V1.04 - GP-VFO and 2M Specific FW

Old FW
SIGEN-0517 FW V1.02



1:1 RF Transformer AD9850
AMS1117-3.3V AMS1117
PIC18F25K22 PIC18F2550
Si5351 AD9850
PCA9306 AD9850

  Visit I2TZK Website for Firmware and Software

Visit I2TZK Web Site

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For online payments, shipping charges will be added on secure web page, from $5.00 upwards for Registered Air Mail. (based on total value of the KIT/Assembled)

Kits are sent by Registered Airmail and takes 10-15 days to reach.

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Buy From 2CO     

 USD In Stock

FD-SIGEN-0517 Complete Kit  32.00

2CheckOut.com Inc. (Ohio, USA) is an authorized retailer for goods and services provided by Fox Delta.
SMT Parts Pre-Soldered
SIGEN-0517 Kit Parts List
Options at checkout: 
Asmb for seniors
7805 Board for +5V
Si5351 Module supplied assembled and Tested for kits




2CheckOut.com Inc. (Ohio, USA) is an authorized retailer for goods and services provided by Fox Delta.