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W1AW info in ARRL HP
Today's screen (BPSK31) on 14094kHz
Today's screen (MFSK16) on 14094kHz
ons
Digital Transmissions
Frequencies are 3.5975, 7.095, 14.095, 18.1025, 21.095, 28.095 kHz and 147.555 MHz.
Bulletins are sent at 45.45-baud Baudot, PSK31 in BPSK mode and MFSK16 in a daily, revolving schedule.
The regular callup will be made using the mode that is transmitted first. The digital bulletin times remain at 6 PM and 9 PM eastern, daily.
The Tuesday and Friday Keplerian data bulletins will continue to be sent using just Baudot and PSK31.
The digital schedule is as follows:
Monday: Baudot, PSK31, MFSK16
Tuesday: PSK31, MFSK16, Baudot
Wednesday: MFSK16, Baudot, PSK31
Thursday: Baudot, PSK31, MFSK16
Friday: PSK31, Baudot, MFSK16
Given time constraints and bulletin lengths, all three modes may not always be transmitted.
The Tuesday and Friday Keplerian data bulletins will continue to be sent using just Baudot and PSK31.
The digital schedule is as follows:
Monday: Baudot, PSK31, MFSK16
Tuesday: PSK31, MFSK16, Baudot
Wednesday: MFSK16, Baudot, PSK31
Thursday: Baudot, PSK31, MFSK16
Friday: PSK31, Baudot, MFSK16
Given time constraints and bulletin lengths, all three modes may not always be transmitted.
Keplerian elements for many amateur satellites will be sent on the regular digital frequencies on Tuesdays and Fridays at 6:30 PM Eastern Time using Baudot and PSK31.
W1AW TEXTs(some part missing or wrong..MFSK16)
11:33:16 PM> Main
ing comments."
The ARRL's comments to the FCC echo the points it made in a briefing
memorandum made public in mid-December. The memo attempted to
clarify just what it is - and is not - asking the FCC to do. The
League said some comments filed in opposition to its petition "are
premised on certain recurring misconceptions or errors" that, the
ARRL allowed, were "understandable" given that the rules governing
Amateur Radio MF and HF emissions "are not entirely straightforwaro
or intuitePe."
In general, the ARRL said, the petition would has
tJ ofect on HF
subbands where phone and image emissions are now allowed. "The
petition would not permit digital voice transmissions in the data
and RTTY subbands, because digital voice is defined in the
Commission's rules as voice (ie, phone), not data," the ARRL
stressed in its cogments. The petition would have no effect on CW
operation in the HF bands either, and restrictions on automatically
controlled digital stations would remain unchanged as well.
"It is hoped that those wh ve filed comments in this proceeding
or who anticipate doing so will review the above summary of what the
Petition in this proceeding does and doeT g ose, and that they
will find it helpful in evaluating the proposal for themselves,
unhindered by any misconceptions about the existing rules o oirdoposed changes," the ARRL said in its comments.
The ARRL comments alsjtook pains ￡ddress the proposed foB e?l±maximum bandwidth for HF data emis ct? dSome comments say that
bandwidths greater ±an 2.8 kilohertz for data emissions should be
permitted in order to permit a wider array of data emissions now and
in the future," the ARRL said. "Oj bQze that 2.8 kHz is too
wide, potentially allowing usurpation of the band to the detriment
of CW and other narrow-bandwidthejfi "
The recommended 2.8 kHz maximum, the ARRL said, was an attempt to
balance two competing objectives - facilitating the use of current
and future dateai,Msions and protecting against a situation wtnn a
few data stations take over a band.
"Some bandwidth limit is necessary, i2Ybed symbol rate
limit is eliminated, as ≪_ould a eoQtl League argued, addfLeParSt would b o
´A? to permit an environment where "a few
data stations using large swaths of spectrum coulde4to the
detriment of other modes in the very narrowr2Mim6eur allocations."
Nor would it be possible, the League said, to drop the maximum HF
data emission i{ i uvA e;n ,CO kHz without prohibiting
permitted data modes already in use.
The League's petitioOnow tops the FCC's "Most Active Proceedings"
li e. As of the December 23 comment deadline, more than 85O comments
1?§cc'oiEtNNNN
GL de W1AW
This is ARRL$tpdquarters Station W1AW in Newington CT.
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