YO4HFU
WIDEBAND SWR METER


SWR METER QRP
More info:http://ludens.cl/Electron/swr/swr.html

wide_swr

Input power: maxim 2W
Frequency:1-1500MHz(use neinductive resistors, good chopper shield, BNC connectors & Schottky diodes)
Precision is very good!!!




SWR = (1+p) / (1-p)   where p is the position on the meter scale, ranging from 0 to 1.

For 75 ohm system use R1...R6=150 ohms.

 

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