[TenTec] Would like Corsair II comments

[Mike Hyder -N4NT-]

They are discussing 'why' the circuitry is as it is, not what it is.

Mike

----- Original Message -----
From: "Gary Hoffman" <ghoffman@spacetech.com>
To: <tentec@contesting.com>
Sent: Wednesday, May 01, 2002 6:10 PM
Subject: Re: [TenTec] Would like Corsair II comments


| Uh....why not just look at the schematic ?  That will show what is
done
| where.  (I don't have one handy, or I'd be more helpful and answer
the
| question directly)
|
| Gary
| AA2IZ
|
| ----- Original Message -----
| From: "N1EU" <n1eu@yahoo.com>
| To: <tentec@contesting.com>
| Sent: Tuesday, April 30, 2002 8:43 AM
| Subject: [TenTec] Would like Corsair II comments
|
|
| > I think Carl and Steve are both correct.  The
| > audio-derived AGC scheme seems to have continued from
| > the Triton to the Omni and finally to the Corsair.
| > Depending on the rig, there was an audio notch filter
| > and/or audio bandpass filter within the agc loop.
| >
| > IMHO, this AGC scheme should have been retired before
| > the introduction of the Corsair and an i.f. agc scheme
| > used.  It wasn't until the Omni V that this finally
| > occurred.
| >
| > 73,
| > Barry  N1EU
| >
| >
| > >I believe they used audio derived AGC to get the
| > >audio notch in the AGC loop.
| >
| >
| > > Gerald:
| > > Just curious about the filter delay comment. I
| > always thought the delay
| > > was in the audio/agc circuit which caused it not to
| > respond as fast as it
| > > should. Also can you comment on why you think TT
| > used audio agc instead
| > > of IF agc? I've seen some really simple IF agc
| > circuits that work great.
| > > Do you suppose it was just a carry over from the
| > Triton/Argo days when cw
| > > selectivity was dependent on the af filter being in
| > the agc loop?
| > >
| > > N4LQ
| >
| >
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