[TenTec] More Omni A B and C questions

[James Duffer]

I can think of several reasons why the s-meter would decrease when a narrow filter is switched in when compared with the wide open bandpass of the IF.  The power associated with the wider bandpass would be diminished by the filter, also if the filter is not centered on the IF frequency.  Curious as to why a s meter would increase when a narrow filter is switched in?  Maybe the filter has an associated amplifier could cause the increased meter reading??

> From: prosolar at sssnet.com
> To: tentec at contesting.com
> Date: Sat, 14 Mar 2009 19:20:55 -0400
> Subject: [TenTec] More Omni A B and C questions
> 
> Boys and Girls....
> 
> The broken Omni D is moving right along.
> 
> Receiver is working while the TX still is kaput.
> 
> However I just wonder why
> 
>  why would the s-meter drop when switching in the 500 hz 
> filter? One would think the opposite would happen.
> 
> I have yet to put a counter on the BFO and carrier oscillator to see if they are on freq.
> 
> or am I chasing my tail as this could be normal?
> 
> mike
> 
> 
> 
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