I had a recollection that it was UOSAT-1 (OSCAR-9) that was planned to have a
23cm L-Band beacon and so I emailed Cliff G4BGP/G8FDH who has sent me the
following:
--
It had been proposed that a 23cm beacon be carried on board UOSAT. However
there was a legal problem to be overcome. A request
That seems to explain the story. Thanks for the research!
Alan
WA4SCA
-Original Message-
From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On
Behalf Of Trevor .
Sent: Wednesday, November 21, 2012 5:49 AM
To: AMSAT-BB; Greg D; Edward R Cole
Subject: [amsat-bb] Re:
Hi Greg, KO6TH
For the history no OSCAR satellite carried on a Mode-L Beacon.
OSCAR-7 carried on a Mode-S beacon on 2304.1 MHz built by the
San Bernardino Microwave Society but it was never officially turned
on because of international treaty constraints (bandplan) so that it
was not receiving
For those interested in AO-7, here's the FCC 432 uplink waiver and the
denial of the 2304.1 downlink...
http://users.burlingtontelecom.net/~n1...@burlingtontelecom.net/images/FCCAO-7.jpg
watch any wrap...
73,
Mike, N1JEZ
AMSAT 29649
AO-7 command op
A closed mouth gathers no feet
-
Right, sorry. The question was mode L but my brain read mode S...
Greg KO6TH
Sent from my trusty HP iPAQ.
-Original Message-
From: i8cvs domenico.i8...@tin.it
To: Greg D ko6th.g...@gmail.com; apbid...@mailaps.org
Cc: AMSAT-BB amsat-bb@amsat.org
Sent: 11/21/12 6:23 AM
Subject: Re:
Hello Jan.
Try Desense filter.
More info here - http://www.amsat.org/amsat-new/articles/Mode-J/
Regards.
-Original Message-
From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On
Behalf Of PE0SAT | Amateur Radio
Sent: Tuesday, November 20, 2012 8:12 PM
To: Amsat bb
Note that Jan is specifically asking about VO-52 (mode UV), *NOT* FO-29
(mode VU). There is a big difference. When the uplink is VHF, the third
harmonic of 145 MHz is 435 MHz so desense is often a problem. I have always
noticed that difficulty with my FT-847 on FO-29 in the absence of external
Hi Dimitry,
I know of this filter, but these are for working FO-29 when the uplink
is 145 and the downlink 435.
The Harmonics produced by the 145 uplink signal interfere with the 435
downlink. Now I experience the
same with VO-52 but there the uplink 435 and the donwlink 145 ???
So why is
Hello Guys.
Sorry I do not read all message.
John right.
I have IC-910H and do not have problem under VO-52 operating.
But I have small VHF UHF antennas and good SWR.
Regards.
-Original Message-
From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On
Behalf Of
Oculus-ASR is a 70 kg satellite that hopes to fly in 2013.
See http://www.uk.amsat.org/?p=11555
73 Trevor M5AKA
AMSAT-UK http://www,amsat-uk.org/
___
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA
Hi Jan,
Sorry to learn of your problems and appears really annoying especially as
you have carried out an equipment change.
Not trying to teach you as you are an expert with lots of experience in
operating amateur radio on many bands and modes. But please consider the
following.
It is hardly
Hi Jan, PA0SAT
Your problem with VO-52 ,uplink 435 MHz and downlink 145 MHz
is not due obviously by armonics but by 435 MHz overloading the
IC-910 receiving 145 MHz because probably this tranceiver has a
lover 1 dB compression point at 144 MHz in comparison to a FT-847
and so it is more subject
A CubeSat’s Road from University to Space
http://www.uk.amsat.org/?p=11563
KN-SAT1 Prototype Subsystems Design and Testing
http://www.uk.amsat.org/?p=11550
73 Trevor M5AKA
AMSAT-UK http://www.amsat-uk.org/
___
Sent via AMSAT-BB@amsat.org.
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