[PCR-1000] RFI

Fri, 28 Feb 2003 11:14:44 -0500

BTW, not only is component placement  very critical, make sure that
component lead length should be kept to an "absolute minimum". As  much
as I enjoy rolling my own stuff, this is one area that I prefer to buy a
commercially built unit. I do agree though, you learn nothing by doing
so but ............ !    :)

Al Simcoe

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Al Simcoe (BluMax)
[email protected]
[email protected]
[email protected]
www.alsimcoe.com
ICQ- 53663021

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of rtv
Sent: Friday, February 28, 2003 10:45 AM
To: pcr1000
Subject: [PCR-1000] RFI

My passion of late is trying to get good pix from the noaa sats. Ive 
been running into interference a lot.
i've built 2 antennas (QHA QFH) and built a preamp for 137mhz only to 
find it just shows more interference. I have a good spectrum analyzer 
 (tek 496)  and sometimes it agrees with the radio.. many times not. is 
there a good way to determine whether a signal is real or a birdie or a 
harmonic created by the preamp?   sometimes i see a rather broad band 
signal (maybe 35khz) pulsing right in the neighborhood of 137.5  i'll 
see it on both the pcr1000 and an icom r9000 but it doesn't show on the 
tek!  but in general its all over the place low level but just enough to

keep my pix from being perfect.
                                                  any help would be 
appreciated

                               rtv

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