[amsat-bb] Best HT for satellite operation?

Matthew Stevens matthew at mrstevens.net
Fri Mar 10 21:38:13 UTC 2017

For what it's worth, I've never found it necessary to do the rotate 90°
thing on AO-85 with an arrow and HT. I typically pay more attention to my
uplink polarity, aiming and twisting as I transmit until I hear my own
signal peak. The downlink is pretty strong on AO85, strong enough that I've
heard it with the arrow laying on the ground, not even pointing at the sat.

YMMV, but I personally wouldn't let this be a deciding factor on an arrow
vs an elk.


- Matthew

On Fri, Mar 10, 2017 at 4:32 PM, Patrick STODDARD (WD9EWK/VA7EWK) <
amsat-bb at wd9ewk.net> wrote:

> ​Hi Greg!
> I think the consensus was that Arrow users - or those with
> similar crossed Yagis - needed to make a 90-degree twist
> when going to transmit to AO-85, and then twist back after
> your transmission. This was the case where Elk users, or
> those with Yagis in the same plane, wouldn't have to make
> a twist going from receive to transmit and back. For most
> other satellites, this 90-degree twisting wasn't normally
> required.
> As with any satellite, some twisting might be needed to
> counteract fading, regardless of the antenna(s) being
> used by the operator. This is a separate thing from the
> advice specific to AO-85, and the other upcoming Fox-1
> satellites.
> 73!
> Patrick WD9EWK/VA7EWK
> http://www.wd9ewk.net/
> Twitter: @WD9EWK
> On Fri, Mar 10, 2017 at 2:22 PM, Greg D <ko6th.greg at gmail.com> wrote:
> > Hi Patrick,
> >
> > One topic that's generated a lot of discussion in the past has been the
> > difference between the Elk and Arrow portable antennas, specifically
> > that one has the elements in the same plane, and the other has them at
> > 90 degrees to each other.
> >
> > Was there a consensus on which gave the better results, including
> > operator wrist action required (a usability issue)?  I'm thinking that
> > some satellites have their Tx and Rx antennas at different angles,
> > meaning that for some the orientation where you hear the satellite best
> > is not the best orientation for the satellite hearing you.  I recall the
> > discussion, but not the results.
> >
> > Greg  KO6TH
> >
> >
> >
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