What does a "zipper" sound like?
On my omni6+ , I sometimes hear a amplitude modulated
wow sound. I haven't yet tried to see the audio on a scope.
It sounds like two broadband noise sources beating
together at about a 1HZ frequency. As I recall this happens
on 160 & 80--dont know if it is on higher freq bands.
k7puc
-----Original Message-----
From: Clark Savage Turner <csturner@falcon.csc.calpoly.edu>
To: Robert <bigmack@nortexinfo.net>
Cc: Ten-Tec Reflector <tentec@contesting.com>
To: <tentec@contesting.com>
Date: Saturday, February 05, 2000 9:30 AM
Subject: Re: [TenTec] Omni Noise
On Fri, 4 Feb 2000, Robert wrote:
> IMHO...
I respect that proviso.
> While I suppose I understand the purist attitude of wanting everything to
> be 100% clean, who really runs their rig with RF gain at zero... As far as
> I can tell the low end noise generated in the Omni VI+ is far far far
below
Depends on what kind of noise you are talking about. When I referred to
the "zipper" noise (from tuning the synthesizer) it sometimes is enough to
make it hard to hear stations on a quiet band, though it happens only when
I tune. In fact, it is loud on any other radio nearby when I tune. I
don't call this a problem of a "purist" myself, but I am certainly not
complaining about the OMNI VI, it stays in my shack, front and center. My
Japanese rig does not have this noise....
> the radio and the wind noise will vanish... Guess my point is, if you only
> hear it at RF GAIN of zero, is this really a problem??? Maybe somebody has
> a solution for RF gain zero noise factor...
It is just a way to figure out where certain noise comes from. It may
still be problematic.
I really like to discuss my favorite rig's strengths AND weaknessess
without hesitation. That is what makes this list fun. As I have said
before, I feel no need to "defend" the Ten Tec line, it stands well enough
on technical grounds as a rig with pretty darned good tradeoffs. No rig
is "perfect" for all operators, but perfection is completely subjective in
this sense - only the operator using the rig knows what is good enough for
himself. I respect that too.
Clark
WA3JPG
>
>
>
> At 08:58 PM 2/4/00 , Clark Savage Turner wrote:
>
> >Yes, the "zipper" is there with the RF gain all the way down. The
> >gastrointestinal description is perhaps more descriptive :-) .
> >
> >Clark
> >WA3JPG
> >
> >
> >
> >--
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>
> +-------------------------------------------------------+
> | 73's KA5PPX - Robert McAdams - TechPlus - ARRL
> | H.F. TenTec Omni VI+ HyGain TriBand @ 75'
> | http://www.arrl.org Grid locator: EM13lk
> | Lat: 33° 26' 50"n Lon: 97° 2' 43"w
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> +-------------------------------------------------------+
>
>
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>
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Administrative requests: tentec-REQUEST@contesting.com
Problems: owner-tentec@contesting.com
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