[TowerTalk] Xm 240

[Grant Saviers]

The MFJ259 is pretty useless in an RF environment.  It has very poor 
selectivity to overload.  Found this tuning 40 and 80m verticals 4 miles 
from a BCB station.

Newer SWR meters are much more resistant, but still can be overloaded. 
The alternative is to try 5 to 10w transmit, whatever makes the radio 
swr or external meter read reliably and sweep the band.

Grant KZ1W


On 11/27/2022 06:59, BRUCE FORD via TowerTalk wrote:
> I put a new xm240 together (after a number of parts issues) and when testing it with a mfj 259 it is resident at  2:7 to 1 at 5926.0 shows 10:1 anywhere else tried 2 baluns and feed lines. Could this be a 259 issue although it is a newer one (to replace my very old one) .Has anyone had trouble with the traps/loading coils they use? First new antenna I have built in 40+ years and it does not work, very frustrating as this is all just slide together and measure. Any thoughts would be helpful
>   Thanks
>    Bruce K9RO
> 
> 
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