[TenTec] Further tests: 1.8 filter

[tlogan7 at cox.net]

Chester, Anthony and all -
Thanks for more advice. I did some filter swapping and have discovered that
putting the 500Hz filter in the 1.8 slot has no impact on the rig....so I
must conclude that the 1.8 slot is not engaging. The odd thing is that if I
put the 1.8 in the 2.4 slot I'm not sure I can really tell any difference -
even if I move the PBT knob over to arounf 4 o"clock.
I'll keep checking and call TT today. Thanks fellas.
73/Tim NZ7C
----- Original Message -----
From: "Chester" <calderman at cox.net>
To: <tentec at contesting.com>
Sent: Friday, February 28, 2003 5:02 AM
Subject: RE: [TenTec] Tested: 1.8 filter definitely not engaging, ideas?


> Tim....
>
> If you have, say, a 500Hz 6.3MHz filter, temporarily put it in
> the 1.8kc slot and punch the 1.8kc button. If you can tell the 500Hz
> filter is working, you will know the filter selection circuitry is
> working. If the filter selection circuitry is working, then you can be
> pretty sure the filter is defective.
>
> If you can prove the filter is not working right, before you
> send it to TT, try resoldering all of the connection points on the
> bottom of the filter board, and try it again. If you just reheat the
> solder connections quickly, you well not damage anything on that small
> board and will more than likely 'fix' the filter.
>
> If you can determine the filter selection circuitry is OK, then
> worst case, you will only have to return the filter.
>
> Good luck!
>
> Tom/W4BQF
>
> Chester Alderman
> calderman at cox.net
>
> -----Original Message-----
> From: tentec-bounces at contesting.com
> [mailto:tentec-bounces at contesting.com] On Behalf Of tlogan7 at cox.net
> Sent: Friday, February 28, 2003 12:33 AM
> To: tentec reflector
> Subject: [TenTec] Tested: 1.8 filter definitely not engaging, ideas?
>
> Hi folks -
> Regarding my 1.8 filter that does not work, I tried Ron's test, below,
> with
> the PBT at 4 o'clock and found no difference. Then I opened the rig and
> pulled the filter out of the slot while the radio was operating and the
> 1.8
> selection button was on - there was no difference in reception. Having
> had
> an Omni V, I know what the 1.8 should sound like and it's definitely not
> working. The jumpers that folks mentioned relate to the 9 MHz board and
> also
> to the Corsair II - but not to the Omni VI 6MHz board. So I am stumped.
> Any
> suggestions? Do you think the fellows at Ten Tec could work this one out
> over the phone? Any help would be appreciated! Thanks for all of the
> replies
> sent. I sure do like this rig - don't want to have to send it to Ten Tec
> and
> be without it though!
> Regards, Tim NZ7C
> ----- Original Message -----
> From: "Ron Kolarik" <rkolarik at neb.rr.com>
> To: <tlogan7 at cox.net>
> Sent: Thursday, February 27, 2003 8:32 PM
> Subject: Re: [TenTec] Maybe problem with 1.8 filter? Need help.
>
>
> > Hi Tim,
> >
> > Real quick check......rotate the PBT control to about 4 o'clock and
> switch
> > the 1.8 filter in and out , you should notice the difference.  The 6.3
> filters
> > control the width available for PBT....the narrower the filter the
> narrower
> > the range.  Use one of the audio spectrum displays for your sound
> card,
> > you'll get a better idea of the filter action.  Try:
> >  http://www.visualizationsoftware.com/gram/
> >
> > 73,
> > Ron  K0IDT
> >
> >
> > ----- Original Message -----
> > From: <tlogan7 at cox.net>
> > To: "tentec reflector" <tentec at contesting.com>
> > Sent: Thursday, February 27, 2003 7:28 PM
> > Subject: [TenTec] Maybe problem with 1.8 filter? Need help.
> >
> >
> > > Hi folks -
> > > When I kick in the 1.8 filter (from the 6.3 board - not the 9MHz
> board)
> on
> > > my recently acquired Omni VI+, it doesn't seems as though it's
> having
> any
> > > effect. Yes, the filter is there and the rig was checked by Ten Tec
> in
> Dec
> > > (per receipt). Otherwise it is a thing of operational beauty. Can I
> be
> > > imagining this or is there possibly a jumper etc etc that might not
> be
> > > placed correctly causing the filter not to activate? The front panel
> light
> > > does work and I still do get the signal when the filters on. Any
> ideas?
> > > 73/Tim NZ7C
> >
> >
>
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