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 Amateur Radio RF Measurements: Antenna Analyzer
AAZ-0914A and AAZ0616 are now revised to AAZ-0217:
 50MHZ Antenna Analyzer: AAZ-0217: USB and BT


A Project by:

Tony / I2TZKFrank / K7SFN , Dinesh / VU2FD

AAZ-0217: Preliminary Project Info

This Revision (From AAZ-0616) has following changes:

1. HC05 Module fits on an FRC16 Socket (Option)

2. Dual, auto power select option: PC use or Portable use

3. Bluetooth module (HC05) activation function auto selected when module  inserted into FRC16 Socket.

4. Project uses Si5351 chip on a plug in module which is supplied fully assembled and tested for kits.

5. Technically restricted to upper limit of 50MHZ but FW/SW is capable of generating 160MHZ. 


A PC program for WIN7/XP is available for AAZ-0217. Latest dotnet update is essential. 

Firmware, Software for AAZ-0217 is developed by  Tony/I2TZK.

AAZ-0217 is a simple single board USB Antenna Analyzer using Si5351 signal source generator chip and a return loss bridge, for measurement by a Log Amplifier AD8307

BT function is realized by using an HC05 module on a FRC Male connector (Option) External power may be supplied to this unit while in BT mode thru FRC socket. Auto power change and BT activation is implemented in BT adapter. BT function is not supported due to too many versions of android and requirements of user setups on tab/phone. BT adapter will be available at later date.

A free metal case is supplied with kits/assembled.

USB Antenna Analyzer AAZ-0217:

Click to enlarge

  Si5351 Module:( Details )

Click to enlarge


 AAZ-0217:  Tech Information Documents


AAZ-0217 Tech info document 0-500MHZ RF Sensor Document
AAZ-0217 Schematic   
Schematic B: PIC18F2550 JPG
Schematic A: Gen+RLBridge  JPG
AAZ-0217 Kit Parts List 0-500MHZ RF Sensor Document

AAZ-0217 Test Guide 0-500MHZ RF Sensor Document

AAZ Troubleshooting Guide by Frank/K7SFN 0-500MHZ RF Sensor Document
Kit Building Guide by Frank/K7SFN 0-500MHZ RF Sensor Document
AAZ Testing Guide by Tony/I2TZK 0-500MHZ RF Sensor Document
 AAZ-0217 Firmware, Software and  Update Document
PIC18F2550 V1.00 FW


FW/SW user guide

0-500MHZ RF Sensor Document

Android APK V1.08 for BT 

 Previous/Last Version FW, SW Etc
Antenna Analyzers



1:1 RF Transformer AD9850
AMS1117 AMS1117
AO4405/AO4407 AO4405
PIC18F2550 PIC18F2550
BFG541 0-500MHZ RF Sensor Document
2N7000 2N7000
Si5351 AD9850
PCA9306 AD9850

  Visit I2TZK Website for Firmware and Software

Visit I2TZK Web Site

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Buy From 2CO     

 USD Getting ready!! 
AAZ-0217 Complete Kit with Free Case  50.00 Coming soon
Si5351 Module Assembled and Tested
All SMT Parts Pre-Soldered

AAZ-0217 complete kit parts list


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