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 Amateur Radio Frequency Measurements:

 

 0-500MHZ RF Power Measurement:
 
RF Dummy Load 50 Ohms 10W: FD-DL50/10
A Simple AD8307 RF Power Meter: FD-PM1
 
PIC16F84A LCD L/C Meter: FD-LCM
 
PIC16F877A LCD HF SWR Meter: FD-SWM-HF
PIC16F88 LCD VHF SWR Meter: FD-SWM-VHF
 
PIC16F876A LCD RF Power Meter: FD-PM2
 

PIC16F876A LCD RF Power Meter with Data Logger: PM3

  

 

 

 

 


PIC16F84A LCD L/C Meter: FD-LCM

 

Coming soon

 

This is a 1x16 LCD L/C meter project using PIC16F628A. L/C Meter is built on a PTH PCB and measures C & L with very reasonable accuracy.

 

 


PIC16F877A LCD HF 100W SWR Meter: FD-SWR-HF

This 100W HF 2x16 LCD SWR Meter uses advanced PIC16F877A and have accurate RF Measurement pick-up board using a toroidal indictor bridge. Has back-lite control and simple two button menu operation. 

Meter displays Forward, Reflected, actual power to antenna and SWR.

 


PIC16F88 LCD VHF SWR METER : FD-SWM-VHF

This 2x20 LCD HF/VHF SWR Meter measures & Display SWR and Forward power and has a bar graph too. Uses PIC16F88 with inbuilt 8MHZ Osc. and has 3 front panel buttons for menu control.

Uses standard PL/SO239 sockets. 

 

 


PIC 16F876 LCD Power Meter  PM-2:

LCD RF Power Meter

 

Radio amateurs showed great interest in my PM1 RF Power meter detailed below. (PCBs still available)

However, requirement of separate sensor board and an encoder was not convenient to many home brewers. 

This, Re-Designed, RF Power meter uses push buttons for menu operation, much smaller in size, has dual RF inputs (Dual Sensor circuit already built-in) & uses DIP8 AD8307 which, you may buy directly from Analog Devices or Digikey and install.

 


PIC 16F876A 500MHZ Dual Channel RF Power Meter with Data Logger: PM3

PM3 is a version of PM2 with Data Logger Output and supports remote LCD & Menu Button placement. 

PM3 has a remote Sensor Board:

 


A Simple AD8307 RF Power Meter: FD-PM1

 

Coming soon

 

This is a simple AD8307 based 500MHZ RF Power meter which uses 10 LEDs  giving 10db step reading from -80db to +10db. Uses a LM3914.

 

 


RF Dummy Load 50 Ohms 10W

 

 

Resistive dummy load for 50 ohms will handle approx. 10W and has detector output for measurement

 

 


0-500MHZ RF Sensor

Originally used with PM1: RF Power Meter

500MHZ RF Sensor uses an AD8307 from Analog Device. This Kit has two possible input channels which may be used with a SWR probe to measure SWR. Presently only one SMD AD8307 is supplied with kit. The second channel may be activated by inserting DIP AD8307 which is available from DIGIKEY.

Only Project details & PCBs are available

 

 

 


 

 

 

 

 

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