Hi Larry, Have you determined that your pre-amp is still working?? I'd do that first.
I have found the 436CP30 to be a good antenna. 73, Mark N8MH At 08:14 PM 11/29/2010 -0500, larry wrote: >Good evening, > > Name here is Larry, N1MIW. I recently moved to a better (higher) QTH and >finally got around to setting up the satellite station "almost" like it used >to be, but am experiencing some reception difficulties on UHF. I'm hoping >someone out here can help me diagnose what I'm doing wrong, or what the >problem is. I am using a Yaesu FT-847 which is computer controlled, as well >as the Yaesu G-5400 rotator. The antennas are mounted on a solid fiberglass >mast only ~17 feet off the ground, and fed with LMR-400. The frequencies are >correct for the satellite I want to use. > > My problem is with the 436CP30 antenna. I cannot seem to find good >results with it since my move - terrestrial or sat related. My SWR is around >1.5:1 at 435MHz, and the polarity switch is working. I tried changing >feedlines and removing the pre-amp, but I still cannot seem to make it work >correctly. I am trying to receive SO-50 D/L, and VO-52 U/L, but both are >just not working like I remember it being before the move. I don't have any >broken or mis-aligned elements (that I noticed - I'll look again). The only >thing I was looking into was instead of having it placed on the boom in a >"+" pattern was making it an "x" pattern - would that make a difference? I >don't remember hearing or reading about that anywhere, so I was looking for >your opinion. > > On a side note, what's your opinion of this antenna? Like I said, I used >to have good luck with it, but I'm not sure what's different, except the new >home. Should I get "horizon" to "horizon" coverage (plus or minus a few >degrees)? Oh, I also looped the coax off the back like the manual states, >but the improvement is very minimal. I checked the "jumpers" at the tuning >box, and they seem OK too. > > I'm running out of ideas, and any guidance would be appreciated. Thanks & >looking forward to working the birds again! > >73's... Larry N1MIW > >_______________________________________________ >Sent via [email protected]. Opinions expressed are those of the author. >Not an AMSAT-NA member? Join now to support the amateur satellite program! >Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb Mark L. Hammond [N8MH] _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
