I have operated while driving. I found a trunk mounted 2 meter half wave (dual bander) to work well when the satellite was behind me, but not at all overhead or in front of the car (makes sense). I currently have a 2 meter quarter wave (dual bander) mounted by drilling into the center of the roof. It works in all directions (again makes sense).
I have always operated full duplex, usually with a headset mic, but sometimes without. The following radios have worked for me.
Yaesu FT-4700 -- The first radio I did it with. Icom IC-2340 -- Worked okay Icom IC-2720 -- Worked great (One side hears better than the other) the radio has "other" issues Yaesu FT-8900 -- Works very well
Mode B is vastly superior to mode J for mobile operation. AO-21 and SO-35 rocked beyond belief!
73, Joe kk0sd
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Mark Lunday Sent: Friday, May 29, 2009 11:11 PM To: eric.fort@gmail.com Cc: 'Amsat BB' Subject: [amsat-bb] Re: eggbeater rx performance
Good question. With Arrow/Elk, it is directional. Good gain but not omni. With whip it is omni, but reduced gain.
Don't know of anyone who operated while driving, so I cannot help you with that one. Maybe eggbeater is the way to go.
Mark Lunday
WD4ELG
mailto:wd4elg@arrl.net wd4elg@arrl.net
http://wd4elg.net http://wd4elg.net
From: Eric Fort [mailto:eric.fort@gmail.com] Sent: Friday, May 29, 2009 11:18 PM To: Mark Lunday Cc: Amsat BB Subject: Re: [amsat-bb] eggbeater rx performance
I have an arrow. It's just sorta difficult to point when in motion. Is the pattern from a standard mobile whip really enough considering polorization and radiation angle or would something else be more effective? I'm looking to move from working portable to truly mobile.
Eric AF6EP
On Fri, May 29, 2009 at 7:46 PM, Mark Lunday mlunday@nc.rr.com wrote:
Eric
Couple of thoughts for you:
No need for QRO, in my opinion. You can solve it all with a good antenna setup.
Regarding antennas...nothing against eggbeaters, but you can accomplish everything with a simple antenna setup, including mobile: Look for Elk antennas and Arrow antennas, hand held and directional. Lots of great success w/o anything other than 5 watts and one of those antennas. Ask WD9EWK and N3TL, who have proven this over and over.
Mark Lunday WD4ELG wd4elg@arrl.net http://wd4elg.net
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