Re: LF: : Request for modification of Argo Time base

[Roger Lapthorn <rogerlapthorn@gmail.com>]

Mal,

We all understand the limitations of such slow data rates, but QRSS600 has already proved useful on 8.97kHz. 

Please do continue to enjoy CW and working DX, but do not decry those who choose to experiment and break new boundaries. Stefan is doing great things proving that what was once considered impossible is indeed possible with some effort and true experimentation.

73s
Roger G3XBM

On 9 September 2010 21:04, mal hamilton <g3kevmal@talktalk.net> wrote:

It looks like Stefan is ATTACKING anyone that does not agree with his point of view.

I find it difficult to envisage using QRS600 when already this past several years faster speeds have proved adequate to cross the Atlantic and beyond.

however

if others favour 600 good luck but I can manage without it.

and don't forget the POP UP CALENDAR and beware of the dreaded QSB during the month long qso !!

 

 

G3KEV

 

 

 

----- Original Message -----

From: Stefan Schäfer

To: rsgb_lf_group@blacksheep.org

Sent: Thursday, September 09, 2010 8:45 PM

Subject: Re: LF: : Request for modification of Argo Time base

Hi Graham,

OK, but most people are just transmitting beacon signals! I would not even have the time to do a real QSO in QRSS-60 but this is not the issue. We are talking about beacon transmissions like WD2XGJ or OE5ODL does it each night. RA3YO is transmitting "Y" in DFCW 60. So, if you receive 10x "Y" you could receive 1x  "Y" in one night with 10 dB better S/N. But the thing is, that this 10 dB S/N can make the difference between receiving a weak trace (positive reception) and receiving nothing at all! Transmitting "Y" in DFCW-600 takes about 44 minutes which is no problem! People can think about that and may choose their personal wanted QRSS/DFCW mode :-)

Ask Jim/M0BMU about his reception of my signal on VLF. He keeps the 2nd best RX distance at all on VLF! Ask what he would have received if choosing QRSS-60 (about 45 mHz FFT). He has taken the time to drive out of the noise and got a doubtless positive reception. If i would have transmitted QRSS-60, it would have been "lost" time and energy, for him and for me!

73, Stefan/DK7FC

Am 09.09.2010 21:08, schrieb Graham:

Assuming this is right .. qrss  600  will  have a  dit  length  of  600 seconds = 10 minuets and at  3:1 dit/dash   dash = 30 minuets  , it  would take  over 1 hour to  invite the  other  side to  TX ...the  sun would be  shining  by then and game over !

 

Not often but this time  may be its  One , Nill  to  the  elder statesman

 

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