Hi Dee, I have tried monitoring passes with the FTM-350AR, and it is just about impossible to hear anything. Granted, I was using a 5/8 wave, but I have used a 1/4 wave several times before with a different radio and experienced similar results. I will probably try it again just to make sure, but I would still like to get something to take the edge off and increase my hearing time a bit.
I know a few of you here have used the ARR preamps in your mobile (or while mobile) setups - does anyone have issues with intermod? Zack KD8KSN -----Original Message----- From: Dee Sent: Wednesday, March 30, 2011 10:53 AM To: 'Zachary Beougher' Cc: Amsat BB Subject: RE: [amsat-bb] Preamp Distance from Antenna Why do you need a preamp in the mobile? Most new rigs are great at sensitivity. You must also remember that if you are mobile, Intermod is just around the corner at these high sensitivity preamps. Preamps, as a rule, should be as close to the antenna as mechanically possible. Good Luck, 73, Dee, NB2F -----Original Message----- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Zachary Beougher Sent: Wednesday, March 30, 2011 10:24 AM To: amsat-bb@amsat.org Subject: [amsat-bb] Preamp Distance from Antenna Hi, I am in the process of getting the ARR SP432VDG preamp for my mobile setup (and just to have around), and I have read that the closer to antenna you mount the preamp, the lower noise figure you will have. My question is, what is close to the antenna - 1ft., 5ft., 10ft.? Ideally, I would probably mount it about 5-6ft. from the antenna (1/4 wave) - would this be acceptable? Any additional advice would be appreciated! Zack KD8KSN _______________________________________________ Sent via AMSAT-BB@amsat.org. 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 _______________________________________________ Sent via AMSAT-BB@amsat.org. 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
