[Elecraft] Flumoxed

[Don Wilhelm]

Not necessarily - notice the relatively flat SWR (less than 2:1) over a 
large frequency range (for 160 meters).  That normally means that the 
antenna is acting more like a resistance than a radiator.

I would expect the SWR on 160 meters to be low only over a 25kHz or at 
most 50kHz range of the band.

When the SWR bandwidth of an antenna increases, you should be looking 
for a problem in that feedline, antenna to feedline connections or in 
the case of a vertical, the ground radial system.

One possibility is that the radial wires installed were aluminum - they 
do not last very long in the ground, for some reason, moles like to chew 
on them.

73,
Don W3FPR

On 12/3/2018 9:18 AM, Don Roberts via Elecraft wrote:
> Lee, it looks like your inverted L wire has stretched. Check with an antenna analyzer and you will probably see your resonate frequency is lower than 1.8 Mhz. Perhaps time to do some triming.