[TowerTalk] Interpreting symptoms

[Mike]

Thanks, Jim.

The EHU's ohm OK, I have 2 bad driver chips in the controller, 2nd director and 
reflector. My Ameritron RCS-12 switch handles 6, but not 60. Which is OK with me.

73, Mike

On 5/5/2011 9:42 AM, Jim McDonald wrote:
> I have a 4L SteppIR.  I'd guess a bad coax or something similar too, but you
> can easily check the EHUs from your shack with an ohmmeter, and you can
> measure the voltage output of the controller.
>
> I use a Top Ten Devices band decoder to switch a remote antenna switch on
> the top of the tower.  It works on all bands with my antennas except I have
> to manually switch to the SteppIR on 6M.
>
> When I forgot to do that I got an SWR of 2.4, and varying the driven element
> length didn't do anything either.  The coax was disconnected at the antenna
> end until I manually switched to the correct antenna.
>
> Jim N7US
>
>
> -----Original Message-----
> My SteppIR is exhibiting high SWR at all frequencies. Varying the length of
> the
> driven element does not affect it.
>
> If I plug only the center conductor of the coax into the rig the noise level
> is much
> higher than when the shield makes contact. Any SWAG's as to what this means
> the
> problem likely is?
>
> 73, Mike NF4L
>
>
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