Message-ID: <3617AC3245C2D1118A840000F805359C01206E4D@PDW-MERCURY-1>
From: "Talbot Andrew" <ACTALBOT@dera.gov.uk>
To: rsgb_lf_group@blacksheep.org
Subject: LF: RE: Preferred freqs
Date: Wed, 16 Feb 2000 16:27:43 -0000
MIME-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1; format=flowed
Content-Transfer-Encoding: 8bit
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org
Sender: <majordom@post.thorcom.com>

> PSK08 is a modification to the PSK31 data waveform, now very popular
> on HF, but operating at a quarter of the signalling rate, ie. 7.8
> Bits/s.  I modified G3PLX's software for the Motorola 56002EVM board
> to generate this mode and use it with a version of his Windows driver
> software for PSK31.   
> 
> To operate, you will need an EVM board, available from a number of
> suppliers - UK prices range from around Ł120 upwards.  Unfortunately
> this board is now obsolete as Motorola no longer make it, but there
> are good stocks still among the suppliers and no doubt an improved
> replacement will be available soon although this will need some
> software to be rewritten.   A copy of the PSK08 software has gone to
> Ko Versteeg NL9222 and he intends placing this on his website soon.
> 
> In use, it looks exactly like PSK31 - at least the EVM version of the
> mode - except running much slower.  The tuning waterfall display does
> not function properly, but if the mode becomes popular on LF hopefully
> it may be possible to persuade G3PLX to modify the driver prog for the
> PC to accommodate this.   You will need to be able to set frequency
> accurately to 1 Hz although much of the fine frequency setting can be
> done by software.
> 
> A linear transmitter such as a transverter and G0MRF type PA will of
> course be necessary.
> 
> Andy  G4JNT
> 
> 	----------
> 	From: 	Holger 'Geri', DK8KW[SMTP:DK8KW@compuserve.com]
> 	Can you tell me more about PSK08, Andy? What kind of
> harware/software would
> 	I need ($?). 
> 
> 	Thanks, best 73
> 
> 	Geri, DK8KW (W1KW)
> 
> 
> 

-- 
The Information contained in this E-Mail and any subsequent correspondence
is private and is intended solely for the intended recipient(s).
For those other than the recipient any disclosure, copying, distribution, 
or any action taken or omitted to be taken in reliance on such information is
prohibited and may be unlawful.