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 Amateur Radio Frequency Measurements:


  0-500MHZ RF Power Measurement:



FC5: 500MHZ RF Meter and Frequency Counter

Project by:

Tony / I2TZK, Frank / K7SFN , Dinesh / VU2FD

FC5 is AD8307 based RF meter to 500MHZ and a 500MHZ Frequency counter using MC12080 as a prescaler. This "add-on" project board fits on top of GCPUx main board to create a 500MHZ RF Meter cum Frequency counter. Measurement results are displayed on 128X64 Graphic LCD. A PC program will be available too.

GCPUx, PIC18F4550 CPU board used in this project, is an expandable CPU and Graphic LCD project which has provision to "add" a "project" board to create a full function amateur radio station accessory. FC5 is a project board add-on for GCPUx Board.

Advantage of concept "GCPUx" is a possibility to add a new project board, change processor code and create a new working unit for ham station. 

A battery board is included with this kit. You may use a NiMh or NiCad batteries with 7.2V output. Battery (NiMH or NiCad) not included as not allowed by postal department.



Simple single Micro Controller with built-in A/D converter (PIC18F4550)
Operates on DC12V,  USB or Internal battery*.
Includes 7.2V NiMh/NiCad Battery charger board kit which fits on roof for Standalone operation
Bluetooth operation for smart phones (Depend on FW)
500MHZ RF and Frequency measurements
Simple 4 Button Menu operation
Graphic LCD 128X64
Measures RF in DBm, VPP, AVG etc and Frequency for HF or VHF.
Free Powder coated metal cases for kits or assembled.


FC5 complete kit includes GCPUx kit, FC5 add-on board kit, Battery Charger Board Kit and a metal case

GCPUx Main Board with metal case

Click to enlarge

 GCPUx main board with FC5 :add-on" Board:

Click to enlarge


 FC5  Back Side Connections and switches:


Click the image to enlarge


 MAX712 Battery Charger Board for GCPUx

Click the image to enlarge
 FC5 LCD Screen shots
 Start up Menu

 Frequency & RF Measurement:

 FC5 Schematics, Tech Details & Parts List:


GCPUx Tech Info Doc 0-500MHZ RF Sensor Document
GCPUx Schematic and Parts List 0-500MHZ RF Sensor Document
GCPUx Schematic


GCPUx Connector Pinout

0-500MHZ RF Sensor Document

FC5 Technical Info Doc

0-500MHZ RF Sensor Document

FC5 kit parts list

0-500MHZ RF Sensor Document

FC5 Schematic


Battery Board Tech Info

0-500MHZ RF Sensor Document

Battery Board Kit Parts List

0-500MHZ RF Sensor Document

Battery Board Schematic


 GCPUx / FC5 Data sheets:
74HC14 0-500MHZ RF Sensor Document
PIC18F4550 0-500MHZ RF Sensor Document
74HC165 0-500MHZ RF Sensor Document
2N3563 0-500MHZ RF Sensor Document
Graphic LCD 128X64 0-500MHZ RF Sensor Document
AD8307 0-500MHZ RF Sensor Document
LM2940 0-500MHZ RF Sensor Document
MAX712 0-500MHZ RF Sensor Document
BD678 0-500MHZ RF Sensor Document
MC12080 0-500MHZ RF Sensor Document
BFR93 0-500MHZ RF Sensor Document
74VHC00 0-500MHZ RF Sensor Document
ERA3SM 0-500MHZ RF Sensor Document
 FC5 PC Software, Firmware and Documents
FW/SW for GCPUx/FC5 is written by Tony/I2TZK  
PIC18F4550 FW FC5 V1.01

For Future updates of FW/SW, please visit Tony/I2TZK's  website
 Buy On-Line

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Buy Online     

USD BUY from 2CO

FC5-0815 Complete Kit (includes PM5 board kit, GCPUx full kit, battery Board kit and a Free metal case)  69.00

2CheckOut.com Inc. (Ohio, USA) is an authorized retailer for goods and services provided by Fox Delta.
FC5 -0815  Parts List
Battery Board Kit Parts List
You will select at checkout:
Assembled at extra USD10
LCD Color: Blue or Green
Case Color: Blue or Chocolate Brown
Free assembled for Senior Radio Amateurs


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


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