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Re: LF: Re: 137kHz WSPR - what frequency?

from [Roger Lapthorn] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: Re: 137kHz WSPR - what frequency?
From: Roger Lapthorn <[email protected]>
Date: Thu, 27 Aug 2009 19:33:57 +0100
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Clearly there is a very good case for the use of CW as Mal rightly points out. Although not a very good CW operator I too use the mode for QRP work on HF and greatly prefer it to modes like PSK31.

My point is that it is not an "either/or" situation: WSPR would nicely compliment other modes and enhance the experience of many on these LF bands whilst taking almost no bandwidth at all. As I have found it is very straightforward to set up and use (easier than PSK31) and as it is such a sensitive mode it allows people with tiny antennas and low power to experiment on these bands in a way that might not otherwise be possible.

But it's not my place to tell you guys how to use the LF bands so with this, I'll leave you to it and get back on 10m WSPR, CW and SSB.  Good luck with whatever modes you enjoy.

Roger
73s
G3XBM

2009/8/27 mal hamilton <[email protected]>
Roger I know all about it and can decode it but I am not impressed. I can do better on CW and have worked some good DX to date especially X BAND.
I tx on 500 and listen HF like 7 Mhz.
mal/g3kev
 
----- Original Message -----
Sent: Thursday, August 27, 2009 1:02 PM
Subject: Re: LF: Re: 137kHz WSPR - what frequency?

Mel, et al,

The bandwidth of an FSK WSPR transmisson is just 6Hz (six Hertz)  - hardly "cluttering up" the bands me thinks? Transmissions are sent in time slots, so that 10 users could share a single 6Hz slot and in, say 200Hz (the band slot the WSPR software searches for decodable signals), one could fit all the users currently active on 136 and 500kHz!!

Think about it.

Best regards
Roger
G3XBM



2009/8/27 mal hamilton <[email protected]>
Roger
The majority of operators over the years prefer CW on LF and MF. These bands are narrow and we do not want the few Khz available cluttered up with data modes, especially Beacons.
Those countries with several Khz allocated like the USA have sufficient space to provide slots for all modes, different story.
I am on LF and MF daily using normal CW if you would like a QSO.
73 De mal/g3kev
 
 
----- Original Message -----
Sent: Wednesday, August 26, 2009 10:06 PM
Subject: LF: 137kHz WSPR - what frequency?

What is the dial setting frequency (USB) for 137kHz WSPR and are there any particular date/times when WSPR is being used? I'd like to listen.

73s
Roger
G3XBM

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http://g3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
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http://www.g3xbm.co.uk
G3XBM    GQRP 1678      ISWL G11088
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