[AMRadio] WTB SB-220


George Pritchard gpritchard at comtechpst.com
Tue Sep 28 09:17:25 EDT 2004


An S1 signal above the noise level IS the difference to being heard or not.
The same is true if the band is on the way out... And the backscatter signal
is kicked up 6 dB or better... At least you can "finish-out" the QSO with
QRO. It's nice to have the juice when you need it. QRO is also fun on Ten
meters with marginal band openings.
George AB2KC
4X1 plate modulation lives on TEN meters

-----Original Message-----
From: amradio-bounces at mailman.qth.net
[mailto:amradio-bounces at mailman.qth.net] On Behalf Of RJ Mattson
Sent: Monday, September 27, 2004 7:07 PM
To: Discussion of AM Radio
Subject: Re: [AMRadio] WTB SB-220


Again, It would be an S1 signal above a s9/30db level noise -  a barely
perceivable difference. You would have to go from 100 to ~ 6,400 watts to
get an S3 signal above that noise level.  bob...w2ami
www.qrz.com/callsign/w2ami


----- Original Message ----- 
From: "George Pritchard" <gpritchard at comtechpst.com>
To: "'Discussion of AM Radio'" <amradio at mailman.qth.net>
Sent: Monday, September 27, 2004 9:38 AM
Subject: RE: [AMRadio] WTB SB-220


> When the interference is also at 30 over S9(even if it's static 
> crashes) a 36 dB over signal using the 400 watts helps. First put up 
> the best ant... Then crank-it with juice!!! George AB2KC
> 1KW 4X1 lives
>
> -----Original Message-----
> From: amradio-bounces at mailman.qth.net 
> [mailto:amradio-bounces at mailman.qth.net] On Behalf Of RJ Mattson
> Sent: Monday, September 27, 2004 9:27 AM
> To: Discussion of AM Radio
> Subject: Re: [AMRadio] WTB SB-220
>
>
> No matter what the spin, 100 to 400 watts is only 1 s-unit and barely 
> perceptible at the receiver. A 30db/s9 signal is from a good antenna 
> not from 100 or 400 watts.
> bob...w2ami
> www.qrz.com/callsign/w2ami
>
>
> ----- Original Message -----
> From: "Jim Candela" <jcandela at prodigy.net>
> To: <amradio at mailman.qth.net>
> Sent: Sunday, September 26, 2004 10:47 PM
> Subject: Re: [AMRadio] WTB SB-220
> >
> > Hmmm, the boys on 3878 are running 1500 watts pep plus
> > on USB, and there is a 100 watt AM'er calling CQ on
> > 3880. How much of an antenna would the AM'er need to overcome the 
> > S/N ratio? I think Astabula Bill, W8VYZ says it all:
> >
> > http://www.amwindow.org/audio/mov/w8vyz.mov
> >
> > Ever hear Bill running 100 watts? When Bill and Less
> > K6HQI (sk) were regulars on 14286 they had to run
> > heavy iron to hold the frequency. A 100 watt rig was
> > seldom heard whereas a 500 watt rig (that 6db again)
> > was often armchair copy, and sometimes often drive the
> > QRM away.
> >
> > Regards,
> > Jim
> >
> > RJ Mattson <rjmattson at hvi.net> wrote:
> > If you can't get out consistantly with a Viking II,
> > you need an antenna -
> > not an amp.
> > bob...w2ami
> > www.qrz.com/callsign/w2ami
>
>
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