[amsat-bb] Arrow 2 Antenna

Scott scott23192 at gmail.com
Thu Jun 20 02:30:21 UTC 2019

Many good explanations have been offered, but I'm surprised no one has 
suggested the most obvious one...

most of our satellites have, after all, INVERTING transponders!

-Scott,  K4KDR


-----Original Message----- 
From: Robert MacHale via AMSAT-BB
Sent: Wednesday, June 19, 2019 10:17 PM
To: Bob ; Paul Andrews
Cc: amsat-bb
Subject: Re: [amsat-bb] Arrow 2 Antenna

When the satellite is directly overhead with a vertical antenna that might 
be tough to contact. Perhaps pointing the antenna at the ground is causing 
the signal to bounce and reflect.
Robert MacHaleKE6BLR Ham Radio Licensehttp://spaceCommunicator.club
Supporting Boy Scout Merit Badges in Radio and Space Exploration

    On Wednesday, June 19, 2019, 2:03:24 PM PDT, Paul Andrews via AMSAT-BB 
<amsat-bb at amsat.org> wrote:

Are the elements installed on the boom backwards?  :0

Shortest element closest to the satellite.

Too obvious?

What antenna problem causes a null off the tip of the boom?

73 - Paul - W2HRO

On Wed, Jun 19, 2019, 16:27 Bob via AMSAT-BB <amsat-bb at amsat.org> wrote:

> Total guess, but perhaps a connector issue on the feedline?  To rule that
> out use a SWR meter between the rig and antenna and see if the SWR changes
> when you are pointing things up high.
> 73, Bob, WB4SON
> On Wed, Jun 19, 2019 at 4:08 PM Kees van Oosbree via AMSAT-BB <
> amsat-bb at amsat.org> wrote:
> >  Hello there!
> >
> > I've been having trouble with my Arrow Antenna on the FOX sats.  It 
> > seems
> > that when I point my antenna at the satellite, say on a 70 degree max
> > elevation pass, it doesn't receive it.  But when I point the antenna at
> the
> > ground, it comes in very clearly.  Towards the end of the pass, I start
> > receiving it again because I'm pointing my antenna near the horizon.  At
> > this time, I make all of my contacts.  What could be the problem?  I
> > checked the elements on the antenna and they aren't mixed up.  Thank 
> > you!
> >
> > 73 de KE0STO 

More information about the AMSAT-BB mailing list