Dear John, LF,
2.000 and 4.000 MHz crystals are commonly available, so it probably be
possible to "rubberize" them into the bottom end of the allocation, so maybe
a QRSS/DFCW spot at 501.500 might be appropriate. I'll do some tests on some
RS components crystals that I have, and report back.
DDS is the way to go for full flexibility....which type are you building?
73, Dave G3WCB IO91RM
-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of John W Gould
Sent: 21 February 2007 21:37
To: [email protected]
Subject: LF: RE: RE: Special Research Permits (501-504kHz) for UK
Amateurs
I'm busy building a DDS, but if that fails to work in a sensible timescale
I'll need to be xtal controlled, so an agreement where we might cluster for
QRSS/DFCW might be worthwhile. This might also be helpful for others. Are
there any obvious frequencies that are divides from standard crystals?
73 John, G3WKL
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Dave G3WCB
Sent: 21 February 2007 20:28
To: [email protected]
Subject: LF: RE: Special Research Permits (501-504kHz) for UK Amateurs
LF Group,
Is anyone willing to propose a voluntary bandplan for the UK 501 kHz
allocation? We could follow the same sort of scheme that is followed on 137
kHz, with separate areas for CW, digital and QRSS/DFCW modes. The 3kHz
available is broadly similar to the 137 kHz allocation, and won't be enough
to permit much by way of "broadband" operation (MCW, DSB-AM, SSB, or even
drifty CW etc)
73, Dave G3WCB IO91RM
-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of John W Gould
Sent: 21 February 2007 11:03
To: [email protected]
Subject: LF: Special Research Permits (501-504kHz) for UK Amateurs
Ofcom has announced today that a limited number of SRPs will me made
available for 12 months from 1st March. See
http://www.ofcom.org.uk/radiocomms/ifi/licensing/classes/amateur/Notices/200
70221
and the RSGB and Spectrum Forum websites.
73 John, G3WKL
RSGB HF Manager
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