I work SO-50 as a Rover (portable) using a regular Arrow and about 10 feet
of RG-8X. No duplexer. I use a different coax for each Band since my
XCVR is full-duplex with 2 ANT connectors. The loss through the coax
is almost nil since it is so short. No trouble hearing it all the way down to
LOS. See pics on my QRZ page.

GL/73,  Bob  K8BL


On Tuesday, April 20, 2021, 09:53:50 AM EDT, Brian Wilkins KO4AQF <bwilkins@gmail.com> wrote:


I work SO50 with LMR240UF and D72A. It isn’t as “loud” as AO-91/92 however it does work. Keep in mind that downlink is UHF so it’s trickier though not entirely impossible. For portable operation I am not sure how you would add a pre amp or if it’s worthwhile given that improved local conditions can be had at zero cost. So trying a different location can help. There is a park in EL97 where I can hear SO50 a lot better than at my QTH

On Tue, Apr 20, 2021 at 9:48 AM Ant Lefebvre <anthony.lefebvre@gmail.com> wrote:
Did you hit it with the "arm the timer" tone?

73
-Ant NU1U


On Tue, Apr 20, 2021 at 9:11 AM Steve Kristoff <skristof@etczone.com> wrote:
I was using a handheld and an Arrow antenna. It has never been a problem in the past.
 

----- Original Message -----

From: Paul Stoetzer (n8hm@arrl.net)
Date: 04/20/21 09:07
To: crohtun (crohtun@aol.com)
Cc: Steve Kristoff (skristof@etczone.com), AMSAT BB (amsat-bb@amsat.org)
Subject: [AMSAT-BB] Re: SO-50?

SO-50 has a very, very sensitive uplink. I've gotten into it with 50 mW to a whip antenna. Be sure to always use a 67.0 Hz tone.

The 250 mW downlink can be weak and you need high quality coax. For a home station, you almost certainly need a preamp unless you have a very short run of very good coax.

73,

Paul, N8HM

On Tue, Apr 20, 2021 at 8:59 AM crohtun via AMSAT-BB <amsat-bb@amsat.org> wrote:
I have always had a miserable time working this bird. For weeks I've been hearing others but no one hears me. The pass just completed took it overhead at more than 50 deg at my QTH. I heard absolutely nothing until the bird was well past TCA and south of me. Suddenly there was KB3IAI and KN4ZAA. Worked both but no one else. Reception was much better on vertical than horizontal. Lots of QRN, however.

Ray
KN2K
FM18


Sent from the all new AOL app for iOS

On Tuesday, April 20, 2021, 8:42 AM, Steve Kristoff <skristof@etczone.com> wrote:


I couldn't hear SO-50 this morning. It should have passed right over head here at EM79. Did other folks have problems or was it just me? About 1224 UTC pass here in southeastern IN.

Steve AI9IN

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--
Brian Wilkins
KO4AQF

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