[PCR-1000] Pcr1000 bandwidth

[Dave Hancock]

Have you had a look at the wxtoimg web site?
http://www.wxtoimg.com/hardware/ 
The Tall Narrow QHA aerial they describe cost me 20 uk pounds (about $35)
with parts from the local plumbing shop and 3 hours with a hacksaw and a
drill. The improvement in signal was quite impressive but I now get sporadic
interference lasting about 2-3 seconds. I'm in the UK and have read about
pagers causing a problem in this band here.

I also have noticed that there is a difference between NFM and WFM at 50khz
bandwidth.

Best regards,
Dave

-----Original Message-----
From: pcr-1000-bounces at mailman.qth.net
[mailto:pcr-1000-bounces at mailman.qth.net] On Behalf Of R. J. Grasser
Sent: 11 June 2005 20:52
To: Discussion of PCR-1000 by Icom
Subject: Re: [PCR-1000] Pcr1000 bandwidth

Alot of it depends on the kind of antenna your using.  The NOAA satellite
signal is circular polarized.

Ideally, you would use a quadrafilar antenna to prevent dropouts as the
satellite passes through your zenith.  But they are expensive, and a real
pain to build. :-)

I used to use a 150 Mhz vertical, as I received more quality signal than my
crossed dipole antenna except at the high point of each pass, where the
dropout occurs.  It could drop out for up to 15 seconds depending on the
lookangle of the pass.

WXtoIMG is just about the best software I have ever found for WX satellites.

Not sure why your get a difference between NFM, and WFM at the same
bandwidth, unless its another of those infamous ICOM "quirks" they wont fix.

Regards, RJ


----- Original Message -----
From: "Dale Ireland" <direland at drdale.com>
To: "'Discussion of PCR-1000 by Icom'" <pcr-1000 at mailman.qth.net>
Sent: Saturday, June 11, 2005 1:53 PM
Subject: [PCR-1000] Pcr1000 bandwidth


>
> I use my pcr1000 to receive NOAA satellite images in 137-138Mhz. They 
> require a bandwidth around 35-40Khz. The pcr1000 does an OK job as it 
> has
a
> 50khz width.
> If I select NFM 50khz I get a pretty good image but if I select WFM 
> 50khz
it
> is much poorer as if the bandwidth is too narrow. Everyone who uses 
> the prc1000 for NOAA apt uses NFM.
> Why would NFM 50khz be any different than WFM 50khz? What else is changed?
> Dale
>
>
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