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From: "Graham" <g8fzk@g8fzk.fsnet.co.uk>
To: <rsgb_lf_group@blacksheep.org>
References: <000f01c88a93$d7067790$0d00000a@AGB> <47E277AC.1030406@telia.com> <002401c88aae$41827370$0d00000a@AGB> <001c01c88b58$657d1be0$0d00000a@AGB> <001101c88b6d$40ae25b0$0d00000a@AGB> <008601c88c34$1c6d43d0$0d00000a@AGB> <000d01c88c35$f0efecb0$6401a8c0@wgt01> <009e01c88c3b$6436ef20$0d00000a@AGB> <fc7eccec0803221117x6957e626m1a3bcc5729a55297@mail.gmail.com> <00c401c88c4d$54318100$0d00000a@AGB> <fc7eccec0803221203y41661449od4cde6c1a15fef63@mail.gmail.com>
Date: Sat, 22 Mar 2008 19:28:01 -0000
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Subject: Re: LF: Re: Re: WSPR == ON AIR TEST NOW 1545 HRS = 503 KHz
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Ok Andy,

Looks like making headway ....

I'm using  multipsk (the test version) which has  jt65-modes .. and for want 
of a better way of describing the frequency  ..sorry if it sounds a 'cb' 
like ... but .. ' The purple line' is set at the 1000 Hz mark on the 
waterfall display giving  1002 hz showing on the l/h fequency window ...as 
you say is 270 hz (ish) from the normal point ... but if you set the  prog 
to  that point , means you can engauge the narrow filter

WSPR is running at 1500 Hz tone o/p giving 503.00 khz rf carrier frequency

I though jt65 would of out performed  wspr ...be intresting to  see the 
parallel decodes

Tnx - G ..




----- Original Message ----- 
From: "Andy Talbot" <andy.g4jnt@googlemail.com>
To: <rsgb_lf_group@blacksheep.org>
Sent: Saturday, March 22, 2008 7:03 PM
Subject: Re: LF: Re: Re: WSPR == ON AIR TEST NOW 1545 HRS = 503 KHz


> Hi Graham
> Yes, I've got the right sequence time and am running WSPR and WSJT
> 5.98 in parallel.  Surprising the WSJT averaging won't extract a valid
> decode.   Some of the sessions are being tagged as having the sync
> detected, with a resulting 2.5kHz S/N in the --25dB ballpark, but they
> don't want to seem to be pulled together by the averaging.  The DF
> figure is coming up as -285Hz, suggesting you're 15Hz lower than
> advertised (should be -270Hz)
>
> Do have very bad QRM here.  I've just gone over to th the old 137kHz
> antenna minus its loading coil rather than the HF vertical that was
> the existing 500kHz Rx.  The LF Tee is further from the house and
> there is about 10dB less localised E field noise.  Its a pity about
> the deliberate jamming taking place just above the upper tone
> frequency.  I'm not sure how well JT65 can cope with that.
>
> Update on the WSPR decodes below - it really does seem a very good
> weak signal mode.   I'm just about to write June's Data Column for
> radcom.   I'll give WSPR a section having now played with it for a
> while in real hard off-air conditions
>
> Andy  G4JNT
>
> c:\WSPR>wspr Rx 0
> 1750   8 -17  -0.1   0.001487  G0NBD IO83 37             28.3
> 1752   6 -18   0.1   0.001487  G0NBD IO83 37             28.3
> 1754   5 -20   0.0   0.001487  G0NBD IO83 37             28.2
> 1756   3 -20   0.1   0.001487  G0NBD IO83 37             28.4
> 1758   8 -18   0.1   0.001487  G0NBD IO83 37             28.9
> 1800   8 -14  -0.3   0.001487  G0NBD IO83 37             30.1
> 1802   1 -24   0.0   0.001487                            28.7
> 1804   4 -20  -0.2   0.001487                            27.5
> 1814   3 -22  -0.2   0.001487                            28.1
> 1816   1 -23  -0.6   0.001487                            27.9
> 1818   4 -24   0.0   0.001487                            27.8
> 1820   7 -19  -0.4   0.001487  G0NBD IO83 37             27.4
> 1822   3 -24  -0.1   0.001487                            27.6
> 1828   2 -24  -0.3   0.001487                            20.1
> 1830   5 -23  -0.2   0.001487  G0NBD IO83 37             27.2
> 1832   4 -20  -0.1   0.001487  G0NBD IO83 37             24.6
> 1834   4 -24  -0.3   0.001487  G0NBD IO83 37             21.9
> 1836   5 -23  -0.2   0.001487  G0NBD IO83 37             22.8
> 1842   2 -24  -0.3   0.001487  G0NBD IO83 37             23.2
> 1844   1 -26  -0.3   0.001487                            22.3
> 1848   7 -19  -0.2   0.001487  G0NBD IO83 37             21.9
> 1850   2 -24   0.0   0.001487                            24.0
> 1852   7 -19  -0.1   0.001487  G0NBD IO83 37             27.3
> 1854   5 -19  -0.1   0.001487  G0NBD IO83 37             23.5
> 1856   3 -19  -0.1   0.001487  G0NBD IO83 37             24.9
>
>
>
>
>
>
> On 22/03/2008, Graham <g8fzk@g8fzk.fsnet.co.uk> wrote:
>> Ok Andy,
>>
>> Thanks for taking a look , the jt65 been running for a while now , did 
>> you
>> have
>>  the 2 systems on when you decoded the wspr signals ?
>>
>> jt56 is sending at even mins , check the birmingham grabber , should show
>> the 2 tone sets
>>
>> Tnx
>>
>> Graham ,
>>
>>
>>
>>
>> ----- Original Message -----
>> From: "Andy Talbot" <andy.g4jnt@googlemail.com>
>> To: <rsgb_lf_group@blacksheep.org>
>> Sent: Saturday, March 22, 2008 6:17 PM
>> Subject: Re: LF: Re: Re: WSPR == ON AIR TEST NOW 1545 HRS = 503 KHz
>>
>>
>
>
>
>
> -- 
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> 17:52
>