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Re: LF: Considerations about wide DX experiments on 630m and tonites QRS

from [Graham] [Permanent Link][Original]
To: <[email protected]>
Subject: Re: LF: Considerations about wide DX experiments on 630m and tonites QRSS-60
From: "Graham" <[email protected]>
Date: Mon, 11 Feb 2013 23:30:22 -0000
Importance: Normal
In-reply-to: <CAMFjj71jujaYLAj92S3BvwniU9VY3jjkKDpKFpqE-3sRd503Ag@mail.gmail.com>
References: <[email protected]><FA0307035BC548E89BE958A4CEDD3B72@AGB> <CAMFjj71jujaYLAj92S3BvwniU9VY3jjkKDpKFpqE-3sRd503Ag@mail.gmail.com>
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Was it that long  ago  ?  seems like  only  yesterday  when the  flap  broke  out  about the  UK   two  way  licence's  : )
 
Problem is  you  cannot  up the  time  to  down the  s/n as  you can  on 136
 
I have seen  MW  UK/VK  dx using  carrier  detection  just  behind the  gray  line , that  would  need  a  100%  carrier running  for  may  be  2  hours  round  that  time  , but the  window is  not too  big , may be  , 15/ 30 mins ?
 
no chance  for  any qrss/data   , just a trace in the  sand  ?
 
G..

Sent: Monday, February 11, 2013 11:15 PM
Subject: Re: LF: Considerations about wide DX experiments on 630m and tonites QRSS-60

Graham,
    Small (but important) correction, US experimental stations have been making QSOs (not just beacons) for more than 5 years now.
I agree that there really is no point trying to reach Tasmania with 1W ERP !

73 Warren K2ORS



On Mon, Feb 11, 2013 at 6:09 PM, Graham <[email protected]> wrote:
Too late S,  , with  1  watt  erp  , game  over

Only  the  the  USA beacons    and  Gus  now  have  access to  the  erp / power needed

G//

--------------------------------------------------
From: "Stefan Schäfer" <[email protected]heidelberg.de>
Sent: Monday, February 11, 2013 10:57 PM
To: <[email protected]>; "Vasily Savchenko" <[email protected]>; "Garry and Linda Hess" <[email protected]>; "Douglas D. Williams" <[email protected]>; "Andy - KU4XR" <[email protected]>; "Edgar J Twining" <edgarjtwining@virginbroadband.com.au>
Subject: LF: Considerations about wide DX experiments on 630m and tonites QRSS-60


MF !!!!!!!!!!!!!!!!!!!!!!! ;-)

Edgar in Tasmania was recently asking if i have some plans about DX experiments on 630m. Well that is a path of > 16000 km. However we do not have real experience if that is easier than 2200m or rather impossible.

At least i know that there was not even a single decode by UA0SNV in my MF WSPR and QRSS tests so far, while it is no problem on LF (OK my MF signal is weaker than my LF signal). Thus i would guess that it is much harder to get some traces of a signal on 630m. We will try anyway!

I'm starting to run a QRSS-60 transmission on 476.172 kHz (+- a few Hz) for the night. Maybe someone across the pond will catch something. We, or at least i still have no experience about the QSB problem on very slow QRSS transmissions on MF. It would be interesting to see a spectrogram.

On air in a few minutes.

73, Stefan/DK7FC

PS: No, not only beacon transmissions, i've just had a > 1 hour long CW QSO with PA0LCE and DK6SX/p! Also contacts to OK2BVG and S57A.





--
73 Warren K2ORS
                WD2XGJ
                WD2XSH/23
                WE2XEB/2
                WE2XGR/1

 
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