| |
DF5DP > IARU 24.06.96 19:48l 101 Lines 3791 Bytes #-10774 (0) @ WW
BID : 58E04_UO22
Read: DL1EEC DL5MHK GUEST DK3EL
Subj: 437 band threat
Path: DB0AAB<DB0KCP<DB0ZKA<DB0LX<DB0RBS<DB0SEL<DB0ZDF<DB0SRS<DB0SIF<DB0NHM<
DB0SAW<DB0LWL<DB0DJ<DB0HRO<OZ4BOX<OZ4BBS<OZ4PAC<OZ2BOS<ZL2TZE<ZL2TZE<
ZL2WA<ZL2TCX<ZL2BAU<ZL2AHK
Sent: 960622/2110Z @:ZL2AHK.#73.NZL.OC #:12435 [Picton] $:58E04_UO22
From: DF5DP
To: ALL
Subject: 437 MHz Threat
Keywords: IARU Regoin_1 Conference Tel-Aviv
----------------------------------------
To : ALL
From: DF5DP
Time: 123605UTC
Date: 22 Jun 1996
-----------------
Hello,
it is widely unknown that in Italy a part in the middle of the 435...438 MHz
satellite band is used for terrestrial FM repeater and digipeater outputs.
Thus these frequencies are no longer usable for satellite uplinks. The Italian
use is not compatible with the IARU region 1 bandplan.
However a new threat will arise at the IARU Region 1 Conference to be held in
Tel-Aviv, Israel Sept., 29 - Oct., 6, 1996: The Swedish Society SSA wants IARU
Region 1 to implement a segement for terrestrial links in the upper satellite
Band 437...438 MHz. If the conference will accept this, we officially lost the
first part of our satellite band due to IARU action. My personal opinion ist,
that this will only be the first step of a process, which will result in IARU
letting keep us only a few frequencies, which are in use by the satellites,
which are currently QRV.
This is the Proposal (Quote):
******************************************************************************
Commitee C.5
Doc. 96/TVI/C5.14
Proposal for a small link segment in the 437 MHz band
SSA
Acknowledging
- that in the 430 MHz band the amateur activity is growing fast equipment is
readily available
- that the amateur satellite service activity is growing
- that the amateur satellite allocation occupies half the band in countries
where only 432-438 MHz is available
- that in countries where only 432-438 MHz is available the space for
terrestrial experimenting is limited
- that the 432 MHz band is the main band for link activity in sparse populated
areas with terrain which makes higher band less useful
Considering
- that in countries with only 432-438 MHz the administrations have allocated the
adjacent frequencies to other services
- that the introduction and increased use of low power devices on 433.92 MHz is
a threat to our band
- that an increased use of both voice and other links stimulates the activity
with more amateurs becoming active in our bands
- that realising a diversity receiver link to a 433.000/434.600 MHz repeater is
difficult if the link frequency has to be chosen from 432-435 MHz
Proposes
- that the VHF committee, or a subgroup, examines the possibility for another
link
segment in the 437-438 MHz band, preferably in the upper 300 kHz, noted as a
link section in the usage section in the band plan. A co-ordination with AMSAT
through the IARU Satellite coordinator is necessary. The allocation must not
interfere with frequencies associated with existing satellites.
On behalf of SSA
Jjell Jari, SM7GVF
SSA VHF Manager
********************************************************************************
*(Unquote)
A few personal comments:
I typed this from a barely readable copy, I hope I didn't make too many typos.
I do not have any additional info on the subject, so please do not send any
request
to me. I will not be able to answer them anyway, because I am not at home the
next
days. Our DARC VHF Manager told me, that he has the impression, that there will
be
not many delegates, which tend to reject the proposal!
If the proposal will be accepted, this will mean, that there will be taken away
frequencies from the satellite service just because SSA wants to establish
diversity repeaters in rural areas! What a BIG problem SSA has! This REALLY is
worthwhile to cut down the Amateur Satellite Service of the whole world, is it
not?
If all countries solve their BIG problems this way, we will no longer find any
clear
frequency for a new satellite in future.
Best 73
Norbert, DF5DP@amsat.org (DARC Satellite Coordinator)
Read previous mail | Read next mail
| |
