[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Misuse of the satellite bands

Hi all,

Sangat, 9M2SS, ask about a monitoring service for satellites. I had written this before
I saw that message - but here is a little about what I have heard over the
last couple of weeks.

It has been a pleasure to use the FM satellites over the last 
many years with many new stations active.

AO-21 was a very usefull bird in the "good old days".

Now we have the use of AO-27, UO-14 and SO-35, which all are 
working very well.

Personally I have worked 81 new stations on UO-14 since it was switched to
the service as a FM repeater. This shows that FM birds are just as good
to attract new operators to the satellite service as the mode-A birds.
I would like to thank the people who made this possible.

There are a few problems here in Europe. If we can solve those, it will be much
easier for new, perhaps QRP stations, to become active on the birds.

On AO-27 I have recorded packet stations from the Ukraine using the uplink
frequency (145.850 MHz). Here is one example:

US5WE-2>UT1WPR-8 <RR R R3>
US5WE-2>UT1WPR-8 <RR C P R4>
US5WE-2>UT1WPR-2 <RR C P R3>
US5WE-2>UT1WPR-8 <I C S5 R4>:

On UO-14 I have recorded APRS transmissions from France:

=4243.42N/00251.42E-POSITION APRS {UIV32}
=4243.42N/00251.42E-POSITION APRS {UIV32}
=4240.00N/00253.00E-PERPINYA- JN12KQ {UIV22}

The common thing for these type of transmissions are that they do not
listen before they transmit.

These two examples are not the worst. It has been common knowledge for 
years that the satellite segment on 2 meters is used widely in Spain for
services it is not intended for. Our fellow radio amateurs in Spain have
a task to perform in this respect.
Especially AO-27 is jammed by this trafic very often.

In Russia the conditions are just as bad. Not only is the 2 meter satellite
segment used for telephone trafic - but in some cases also used by broadcast
stations. This is mostly on UO-14.

Some countries in the Middle East also use our frequencies for both
telephone trafic and broadcast.

The last three examples are in violation with the international rules.

To add to the problems radioamateurs in Denmark (that has been delt with), 
UK, the Netherlands, Germany and Italy can be heard on the satellites.
I would very much like the national societies to adress these problems.

A third type of problem is that some high power stations try to monopolise the
FM satellites.
If everybody tried to work one or two stations only on each pass, it would be 
much better.

I have no intention to be a policeman on the satellites - but I would like
to see the satellites used to forward our hobby in a positive way.
Please receive this message in the way intended and do something about it,
if you are in a position to do so.

73 de OZ1MY/Ib

Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org