Steve,
Thanks. I looked at the connections carefully under a lighted magnifier and
could see no cracks. I went ahead and re-soldered all four pins, just in
case. Unfortunately, that didn't help. I'm still seeing about 20 dB more
attenuation going through the 250 Hz filter than through the 500 Hz filter.
73,
Mark
----- Original Message -----
From: "Steve N4LQ" <n4lq@iglou.com>
To: <tentec@contesting.com>
Sent: Sunday, July 25, 2004 4:21 PM
Subject: Re: [TenTec] Orion Roofing Filters
> Yes. Sometimes stress on the pins will cause the foil to crack around
them.
>
> Steve N4LQ
> ----- Original Message -----
> From: "Mark Erbaugh" <mark@microenh.com>
> To: <tentec@contesting.com>
> Sent: Sunday, July 25, 2004 4:03 PM
> Subject: Re: [TenTec] Orion Roofing Filters
>
>
> > Thanks, I'll take a look. Are you referring to the pins that mount the
> > filter into the radio?
> >
> > 73,
> > Mark
> >
> > ----- Original Message -----
> > From: "Steve N4LQ" <n4lq@iglou.com>
> > To: <tentec@contesting.com>
> > Sent: Sunday, July 25, 2004 3:51 PM
> > Subject: Re: [TenTec] Orion Roofing Filters
> >
> >
> > > Look for a hair-line crack in the foil around the pins of the filter.
> > > Happens all the time! Just a dab of solder will fix it.
> > >
> > > Steve N4LQ
> > > ----- Original Message -----
> > > From: "Mark Erbaugh" <mark@microenh.com>
> > > To: <tentec@contesting.com>
> > > Sent: Sunday, July 25, 2004 3:53 PM
> > > Subject: Re: [TenTec] Orion Roofing Filters
> > >
> > >
> > > > I have swapped the 250 and 500 Hz filters and the problem seems to
> > follow
> > > > the 250 Hz filter, so it looks like that is the culprit. Do you
know
> if
> > > > these filters can be repaired? Does TT repair them? It doesn't look
> like
> > > > there is much to them, just the crystals and a few capacitors.
> > > >
> > > > On a related question. I put the 250 Hz filter in my Orion only
> because
> > I
> > > > had one available. If the filter can't be repaired, is it worth
> buying
> > a
> > > > replacement? Has anyone encountered a situation where the 250 Hz
> filter
> > > > improved reception over the 500 Hz filter?
> > > >
> > > > 73,
> > > > Mark
> > > >
> > > > ----- Original Message -----
> > > > From: "Lee A Crocker" <lee_crocker@yahoo.com>
> > > > To: <tentec@contesting.com>
> > > > Sent: Saturday, July 24, 2004 1:52 PM
> > > > Subject: [TenTec] Orion Roofing Filters
> > > >
> > > >
> > > > > Mark
> > > > >
> > > > > why don't you switch the 500 and 250 and see if the
> > > > > loss behavior changes to the 500hz position. This
> > > > > would, I believe, virtually diagnose a bad 250hz
> > > > > filter
> > > > >
> > > > > Lee W9OY
> > > > > _______________________________________________
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> > > > > TenTec@contesting.com
> > > > > http://lists.contesting.com/mailman/listinfo/tentec
> > > > >
> > > >
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> > >
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> >
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> >
>
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