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OE3DZW > IARU 24.10.96 14:22l 242 Lines 11128 Bytes #-10651 (0) @ EU
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Subj: Revision of 145 MHz Bandplan
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ANNEX F TO DOC /96/TVI/C5.47
REVISION OF THE 145 MHz BANDPLAN
IARU Region 1 bandplan Usage
-------------------------------------------------------------------------------
144.000
E.M.E. SSB & Telegraphy
144.035
-------------------------------------------------------------------------------
144.035
144.050 Telegraphy calling
TELEGRAPHY (a) 144.100 Random MS Telegraphy
reference frequency (m)
144.150 144.140 - 144.150 FAI activity telegraphy
-------------------------------------------------------------------------------
144.150 144.150 - 144.160 FAI activity SSB
SSB 144.195 - 144.205 Random MS SSB (m)
144.300 SSB Calling
144.400 144.390 - 144.400 Random MS SSB (m)
-------------------------------------------------------------------------------
144.400
BEACONS
144.440
BEACONS (j) 144.490 SAREX uplink (q)
144.490
GUARDBAND
144.500
-------------------------------------------------------------------------------
144.500 144.500 SSTV calling
144.525 ATV SSB talkback centre
ALL MODE (f) of activity
144.600 RTTY calling (n)
144.700 FAX calling
144.800 144.750 ATV calling/talk-back
-------------------------------------------------------------------------------
144.800
DIGITAL COMMUNICATIONS (g,h)
144.850
DIGITAL COMMUNICATIONS (g,h,k)
144.990
-------------------------------------------------------------------------------
144.990
NBFM REPEATER INPUT, 12.5 kHz
spacing, (channel freqs 145.000 --
145.175 MHz) (c)
145.1875
-------------------------------------------------------------------------------
145.1875 145.200 see note p
NBFM SIMPLEX CHANNELS 145.300 RTTY local
12.SkHz spacing, (channel freqs
145.200-- 145.575 MHz) (c) 145.500 (Mobile) calling
145.5875
-------------------------------------------------------------------------------
145.5875
NBFM REPEATER OUTPUT, 12.5kHz
spacing, (channel freqs 145.600--
145.775 MHz) (c) (d)
145.800
-------------------------------------------------------------------------------
145.800 145.800 see note p
SATELLITE SERVICE (e)
146.000
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NOTES ON THE 144 - 146 MHz BANDPLAN
1 . IARU REGION 1 BANDPLAN
The following notes are part of the officially adopted IARU Region 1 bandplan,
and all member societies should strongly promote adherence to the
recommendations made in these notes.
1.1. General
i. In Europe no input or output channels of FM repeaters shall be
allowed to operete between 144 and
145MHz.
ii. Except in ihe part of the band alocated to the Amateur
Satellite Service it is not allowed to use input- or
output frequencies in the 145 MHz band for repeaters with
in- or output in other ameteur bands (Miskoic-Te-
polca 1978).
iii. No packet-radio networks will be set up in the 145 MHz
band and no access from the 145 MHz band to
networks on other bands will be allowed.
It is recognised that in some parts of Region 1 the introduction of
packet-radio may require the use of access frequencies
in the 144 - 146 MHz band for a limited time (Düsseldorf 1989).
Note. The parts of Region 1 meant are those parts with low amateur
population and/or those at the periphery of the Region, where
exceptions can be tolerated as these do not harm the orderly use
of the band in the parts of Region 1 where there is a greater
pressure on the available spectrum space. In the latter part
of the Region the second paragraph of the footnote should never
be used to justify ignoring the first part for a considerable
time.
iv. Beacons, irrespective of their ERP, will have to be situated in the
beacon part of the band.
1.2. Footnotes
a. Telegraphy is permitted over the whole band, but preferably not in
the beacon band; Telegraphy exclusive between 144.035 - 144.150 MHz.
b. Within IARU Region 1 the frequencies for beacons with an ERP of more
then 50 Watts are coordinated by the IARU Region 1 Beacon Coordinator
(see section IX).
c. lf there is a real need for more repeater channels (see section
VIIIa!), it is recommended that Societies or Repeater Groups consider
setting up a repeater network on the higher frequency band(s).
Further to this subiect the following recommendation was adopted in
De Haan, 1993:
For FM repeater and simplex operation in the 144 to 146 MHz band
IARU Region 1 will change to a genuine 12.5 kHz channel spacing
system, i.e. a system with bandwidth and modulation such that
stations in close proximity can use adiecent channels without
mutual interforence.
Furthermore in Tel Aviv, 1 996 it was decided that societies shall
promote the use of the 12.5 kHz channel spacing standard for NBFM
channels in order to effectively implement the 12.5 kHz system .
For the numbering of NBFM channels, see recommendation J
d. Established simplex frequencies on repeater output channels may be
retained.
e. In view of the important public relations aspect of amateur satellite
activities, it was decided at the IARU Region 1 Conference in
Miskolc-Tapolca (1978) that-
i) AMSAT will be allowed to use the band 145.8 - 146.0 MHz for
amateur satellite activity.
This decision was re-confirmed at the IARU Region 1 Conference
in Brighton (1981).
At the IARU Region 1 Conference in Cefalu (1984) the following
recommendation was adopted:
ii) Repeater channels R8 and R9 will be removed from the
144 - 146 MHz bandplan. Existing repeaters using R8 and R9
shall be moved to other channels as soon as reasonably possible.
As most of the R8 and R9 repeaters had been moved, at the IARU
Region 1 Conference in Noordwiikerhout (1987) it was decided
to add the old R9 input channel as simplex channel S9 to the
bandplan.
At the IARU Region 1 Conference in Torremolinos (1990) a
recommendation was adopted,
F-2
emphasizing that R8 repeater channels should be moved as soon as
possible, in view of the fact that future satellite projects
planned to use this frequency.
At the IARU Region 1 Conference in De Haan (1993) the old R8
input channel was added to the bandplan as simplex channel S8.
iii) see also footnote p
f. No unmanned stations shall use the all-mode segment
g. Attention is drawn to section 1.1. point iii of these Bandplan notes!
h. Network stations shall only operate in the part of the 145 MHz
band allocated to Digital Communications and will be permitted
only for a limited time. Such network stations should also have
access ports on other VHF/UHF or Microwave bands and should not
use the 144 MHz band to forward traffic to other network stations.
In view of the time limitation the set-up of new network stations
is not encouraged (De Haan, 1993).
Unmanned packet radio stations are only allowed in the segment
144.800 - 144.990 MHz. Outside of this segment the signal level
produced by those stations shall be not larger than 60 dB below
the carrier level (measured in a 12 kHz bandwidth).
Any other unmanned packet radio and digital access points must
cease operation not later than 31 Decomber 1997.(Tel Aviv 1996).
j. For a limited period - and never longer than novice stations
in The Netherlands are only allowed to use SSB between 144.440
and 144.490 MHz - SSB and Telegraphy operations are also allowed
in the 144.440/144.490 MHz part of the beacon band.
k. All beacons shall move from the 144.850/144.990 MHz segment to
the 144.400/144.490 MHz Segment before 1 July 1997. When
coordinating frequencies the beacon coordinator shall try to
place well known DX-beacons in the 144.400-144.440 MHz segment.
Digital communications shall not use the 144.85O/144.990 MHz
segment before 1 July 1997. (Tel Aviv 1996)
2. USAGE
The following notes are referring to the Usage column in the bandplan.
As already set out in the introduction to section IIc, in the right
amateur spirit operators should take notice of these agreements
which are made for operating convenience, but no right to reserved
frequencies can be derived from a mention in the Usage column or from
the following notes.
At the meeting of the VHF/UHF/Microwaves Committee in Vienna, March 1992,
the following recomendation was adopted:
Societies should publicise the use of 144.140 - 144.160 MHz as an
alternative for EME operation. The results of this test should be
monitored with the aim of incorporating this segment as EME
alternative into the Usage part of the bandplan if successful.
2.1. Footnotes
m. See procedures set out in section Vb.
n. Publicity should be given to ihe usage of frequencies around
144.600 MHz by RTTY stations , in order to keep these frequencies
clear from other traffic and to avoid interference with RTTY stations.
p. For NBFM voice communications with manned spacecraft it is
recommended to use 145.200 MHz for simplex operation or
145.200/145.800 MHz for split-channel operation (Vienna 1995/
Tel Aviv 1996).
q. In order to make worldwide operation of the SAREX project possible
in its initial phase and facilitating the conversion towards use
of higher frequency bands, the frequency 144.490 MHz can be used
for uplink communication using NBFM for a limited period but not
after 1 October 1999 (Tel Aviv 1996 ).
F-3
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