Guess I learned the ITU version :-)
http://en.wikipedia.org/wiki/Simplex_communication
On Tuesday, June 7, 2011, Nigel Gunn G8IFF/W8IFF ni...@ngunn.net wrote:
That's half duplex, not simplex.
On 07-Jun-11 14:55, Justin Pinnix wrote:
A packet satellite can also be operated simplex (TX and RX
Greg, you're overlooking something - the time dimension.
Yes, packet is a one-at-a-time affair, but those packets move quickly -
1200bps vs 31bps for PSK31. So, each station only has the bird tied up for
a short period of time. You could think of it as a form of time division
multiplexing.
73
Do you think that if we asked real, real, nicely they'd go boost AO-51 for
us while they're up there? :-)
Just kidding - I know the reasons why this could never realistically be
done. But it does give me a great deal of appreciation for how reliable a
satellite can be when someone else is doing
To clarify, I was referring to contacts relayed via ISS either through the
digipeater or the voice repeater.
On Thu, May 19, 2011 at 3:44 PM, Justin Pinnix jus...@fuzzythinking.comwrote:
On a related note, I saw a FAQ that indicated that LOTW does not accept ISS
contacts. Is that still
Hi Kev,
The active FM birds are AO-51, SO-50, AO-27, and ISS. I think SO-67 and
HO-68 are sometimes available. I'm sure someone will correct me if I have
omitted any.
You can get their frequencies by clicking on each one on this page:
http://www.amsat.org/amsat-new/satellites/status.php
The
One could always buy an 857D and an 817 to get full-duplex all mode. Yaesu
should offer the two as a package and call it the 1674 :-)
On Fri, May 13, 2011 at 2:44 PM, Dee morse...@optonline.net wrote:
I think the Chinese radios will come out with a Satellite Radio- ALL Mode
DC to Daylight for
Kevin,
Congrats on your first contacts!
I built a handle for the Elk out of PVC pipe. It's long enough (about 4
feet) so that I can rest one end of it on my hip to carry most of the
weight. The passes are only 10 minutes or so, so my arm doesn't get too
tired with the rest of the weight. I
Kev,
I believe the decision is made by the ISS crew. This website tracks the
current status and may give clues to upcoming events:
http://www.issfanclub.com/
I believe that most of the time the station works in digipeater mode. I
have been experimenting with using this over the past couple of
After working Simonyi in February, I sent my QSL card off to ARRL HQ and got
an NA1SS card back within several weeks.
73 de AJ4MJ
On Wed, Jul 1, 2009 at 1:24 AM, Greg D. ko6th_g...@hotmail.com wrote:
Hi Scott,
Now you've got me wondering... I sent mine off to the normal ARISS QSL
site, and
Joe,
I used the AMSAT web site to check your numbers (
http://www.amsat.org/amsat-new/tools/predict/). Enter the coordinates you
gave and choose next 30 passes or so to look ahead into the future.
The first passes of the day seem to be within +- 1 minute of your
predictions for 50, 51, 27, and
Here is most of the info you are looking for:
http://amsat.org/pipermail/amsat-bb/2009-February/017391.html
On Wed, Jun 10, 2009 at 5:44 AM, Vincenzo Mone vim...@alice.it wrote:
Hi folks,
is it possible to know the Downlink and if any uplink frequencies and modes
for these new birds:
If you are operating away from home and want to send out QSL cards, is it
acceptable to use your home card and note corrections to the location?
Can I just put portable FM17 in the notes field? Should I strike
through my home grid?
73
AJ4MJ/P FM25 (15 May - 17 May 2009)
AJ4MJ/P FM07 (30 May - 1
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