Dear All
as a first proposal for discussion we present a "plan" that we
coined the "B31 Band Plan for 630m". The name derives from the DOK to which all
who shared ideas, belong.
Just to state it once more: it is a first basis and
proposal and those who have an interest in operation between 472kHz and 479kHz
(up to now the slot allocated by the BuNetzA to German hams) are invited to
agree, discuss or provide better ideas.
Several hams already provided
specific proposals which were incorporated.
We deliberately did not detail
too much, as we do not think, that all can be fixed prior to actual
demand.
Please see attached gif-file.
1. A CW slot from 472kHz to 475kHz (=3kHz).
2. Within that, a region for
beacons (472,000kHz to 472,150kHz) followed by a region for Slow CW (472,150kHz
to 472,300kHz).
3. For TA-CW DX traffic or other long-haul DX, a calling
frequency shall be established at 472,600kHz.
4. For other CW traffic,
another calling frequency (if the necessity exists) shall be established in the
upper region of the CW allocation at 474,750kHz (474,500 occupied by
"SA").
5. The frequency 472,500kHz will not be allocated for special use (at
least for the time being), as a continuous carrier is audible 24/7 throughout
DL.
6. A slot for Digital Modes from 475,0kHz to 479,0 (= 4kHz).
7. Today
it is much too early to decide which digital modes will be used on 630m. We
propose to leave this open for the future. WSPR (474,200kHz Dial USB), OPERA and
ROS (477,000kHz DIAL USB) have established themselves on the shown frequencies.
Some other modes that may be useful for MW but can not yet be used (e.g. JT65HF)
because they allow no suitable frequency selection.
8. Digital Modes should
not overlap each other (minor relocations may be necessary).
9. Whether or
not the shown "protection zones" of e.g. +/- 50Hz around active NDB frequencies
are necessary or not, ist still being discussed.
10. No further stipulations
will be given.
Walter DJ2LF, Roland DL3NDR, Klaus DJ6LB
NB (DJ6LB): Upon request I provide (via separate mail) a picture with
better resolution .
