Re: LF: DATA

[Roger Lapthorn <rogerlapthorn@gmail.com>]

Mal,

G7NKS has largely echoed my views on your email. 

Yes, HF conditions have been getting better. VK9 was worked on 10m from the UK today (on CW and not by me). I was able to decode the 1W WSPR signals on 10m from V53ARC (running just 1W) this morning and from FR1GZ (10W) yesterday. WSPR is hugely helpful in propagation testing on the higher HF bands and does not need much power. There is lots of WSPR activity on HF, although more on 10m would be useful to help seek out fleeting openings. PSK31 is widely used of course.

Regarding <9kHz, clearly it is very unlikely any great distances will be spanned, but there is much that can be learned from such experiments. I have experimented with this in the past and hope to do so again soon, but using the best weak signal techniques this time.

Your remarks about 500kHz "appliance operators" are not helpful.  However, it's a free country and you're entitled to express your views, even if we choose to differ.

73s
Roger G3XBM

On 23 February 2010 14:50, mal hamilton <g3kevmal@talktalk.net> wrote:

Generally band condx vy good at present from LF to HF as far as 24 Mcs. Modes mostly CW and SSB world wide, some strong USA stns.

What is noticeable is the lack of Amtor, Pactor and packet transmissions but RTTY seems to have survived over the years.

Observations indicate that data mode acty does not last long, the novelty wares off, whereas the traditional modes CW, SSB and RTTY are still going strong.

Some will argue that cw and rtty are data but I am referring to the fly by night data modes Amtor, pactor, packet and all the JT, wspr etc, tuning across the bands today I did not hear any of these modes.

Obviously the majority of ham operators are not interested. It would appear MF attracts the Appliance Operator, and the 8.7739872 Kcs Dreamers!!

If you fancy your chances on VLF below 9 Kcs I will listen out. I have a suitable RX and antenna.

Your observations ?

 

de G3KEV

 

 

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