[TowerTalk] Point me the way....

Chris Pedder chris at g3vbl.co.uk
Fri Dec 19 17:03:17 EST 2003


At 16:03 19/12/2003, N8DE wrote:
>Or use 75 ohm coax and parallel two of them for a much closer match!
>Don
>N8DE
>
>Clive GM3POI wrote:
>>Even better still, I use parallel quarter wave transformers to match
>>12.5ohms to 50 ohms.
>>So the only addition to the system is another length (about 90ft @ 1.8mhz)
>>to put in parallel with the last 90ft of your 50 ohm feeder. No UNUNs,No
>>networks to go wrong. Just a reliable 25 ohm quarter wave transformer. 73
>>Clive GM3POI

According to my sums, Clive is spot on and I would do as he says! (You need 
the geometric, not the arithmetic mean)

Chris 




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