Are the 9 Mc filters in or jumpered with the correct jumpers for output?
Gary - AB9M
________________________________
From: TenTec <tentec-bounces@contesting.com> on behalf of Stan Gammons
<s_gammons@charter.net>
Sent: Monday, August 7, 2017 6:33 PM
To: tentec@contesting.com
Subject: Re: [TenTec] Omni VI filters
On 08/07/2017 05:02 PM, Barry N1EU wrote:
> I don't see how a PIN diode is going to result in abnormally high output.
The 1.8 Kc filter has higher output than the 2.4 Kc or 500 Hz filters.
That's why I was wondering if the PIN diodes for the 2.4 Kc and 500 Hz
positions might be the problem. Would seem odd if that's the case. I
guess it's possible though.
>
> What would be a very interesting experiment is to pull all the 6.3MHz i.f.
> filters and simply jumper the in/out filter slot pins together (or bridge
> them with a reasonable size ceramic disc capacitor). What you should see
> when moving thru and engaging the filter switches is a ramping up output
> from 2.4 to 1.8 to 500 to 250.
>
> Another interesting experiment would be to swap the 2.4KHz filter with the
> 1.8KHz filter and see if the abnormally high output follows the 1.8KHz
> filter or if it stays with the 1.8 filter slot.
>
> Barry N1EU
>
>
When I get the Inrad roofing filter installed, I'll see if I can figure
out what's going on with the 6.3 Mhz I.F. filters. I figured the
roofing filter would have arrived today. No such luck.
73
Stan
KM4HQE
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