| |
ZL2VAL > SAT 03.04.04 22:03l 70 Lines 2188 Bytes #999 (0) @ AMSAT
BID : ANS-095.08
Read: DB0FHN GUEST
Subj: New opportunities to reduce QRM to amateur satellites in Reg
Path: DB0FHN<DB0FOR<DB0SIF<DB0EA<DB0RES<ON0AR<7M3TJZ<ZL2TZE<ZL2AB
Sent: 040403/1939Z @:ZL2AB.#46.NZL.OC #:38500 [New Plymouth] FBB7.00g $:ANS-095
From: ZL2VAL@ZL2AB.#46.NZL.OC
To : SAT@AMSAT
AMSAT News Service Bulletin 095.08 From AMSAT HQ
SILVER SPRING, MD. April 4, 2004
To All RADIO AMATEURS
BID: $ANS-095.08
At the recent meeting of the IARU Region 1 VHF Managers held in Vienna,
the subject of QRM to satellites operating in the amateur spectrum
allocated to satellites was discussed. As a result of good work
performed by Ib, OZ1MY, we were able to demonstrate both by written log
and by .WAV file the QRM that is occurring, especially but not
exclusively to 145MHz uplinks and when the satellites are over Africa
and the Middle East.
The IARU Region 1 has a Monitoring Service which has been active for
some years but which has, up to now, concentrated on frequencies below
30MHz. In view of the wide area of QRM that can be caused by satellites
relaying signals across many borders, the team has now enthusiastically
agreed to add our problems to their portfolio.
What is needed therefore are regular reports showing the following
details which can be usefully backed up by .wav files as these can
enable more precise recognition of accents and dialects to be made.
This information obviously can aid identification.
Sat Name
AOS/ LOS
Real QRG down (allowing for Doppler)
UTC
Day
Month
Mode
Identification
Country or language
REMARKS
(These are really "column" headings but this does not display very well
using "plain text"!) The team has good contacts which are already used
daily to "remove" some of the intruders to our bands so we should try
to see if similar success can be achieved on VHF and UHF. The system
works generally through national societies so you should send your
reports to the MS coordinator of your Region 1 National Society in the
first instance. For the time being could you also please send me a copy
as well for information. In response, I will try to provide everyone
with a quarterly report on the MS activities as they apply to our
branch of amateur radio! I would be grateful if you could forward this
information to all Region 1 AMSAT organizations.
Graham Shirville G3VZV
IARU R1 Satellite Co-ordinator
[ANS thanks Graham Shirville, G3VZV, for the above information.]
Read previous mail | Read next mail
| |
