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Roger
Not a precise freq. My accuracy is plus/minus a couple of
hz and around 8970.
But like Andy has said even direct use of sound cards and
lack of proper software is no guarantee to see a signal at rediculous narrow
bandwidths. Even locked to a freq standard accuracy is hard to maintain in the
uhz domain, its a hit and miss game both at the RX and TX end, plus the very
long time period and then no real ID in the end. Confirmation confirmed by
frequency alone is not valid.
When I copied OE5ODL I asked him to cut carrier for ID,
this he did and I was able to confirm the transmission was from him, I also
copied him here in QRS 30, 10, 3 mode which is more realistic instead of waiting
hours and weeks.
I hope u see my point.
de mal/g3kev
----- Original Message -----
Sent: Wednesday, March 09, 2011 12:40
PM
Subject: Re: LF: Re: 8970.025Khz
Hi Mal
What was the precise frequency and time of
your test please? I can look again at my screen grab if I know where, but I
have to look in very narrow bandwidths for some hours to make out anything
distant on VLF.
BTW, your Spectrum Lab bandwidth looks very wide and
although this may be OK for the stronger stations you will have to use MSK
locking or similar and much narrower settings to see G3XIZ for example.
I know you are less keen on this sort of testing, but Chris would appreciate a
report from you I am sure. Also, you would be much better with direct
reception on VLF rather than mixing up first as this is another source of
frequency error best avoided when searching for weak signals with narrow FFT
settings.
Good luck and keep looking!
73s
Roger G3XBM
On 9 March 2011 12:17, mal hamilton <[email protected]>
wrote:
What I am observing at present
g3kev
----- Original Message -----
Sent: Wednesday, March 09, 2011 10:58
AM
Subject: Re: LF: Re:
8970.025Khz
Will that be the 3-el triband Mal? More seriously,
people do appreciate you looking. Keep at it and thank you on behalf of
the Dreamers. 73s Roger G3XBM
On 9 March 2011 10:33, mal hamilton <[email protected]> wrote:
Nil here at IO94SH. Antenna beaming
East
g3kev
----- Original Message -----
Sent: Wednesday, March 09, 2011
9:28 AM
Subject: LF: 8970.025Khz
Hi LF,
The tx is still on
freq.8970.025Khz
henny
pa3cpm
best
73's -- g3xbm-qrp.blogspot.com/www.g3xbm.co.ukwww.youtube.com/user/g3xbmG3XBM GQRP
1678 ISWL
G11088
--
g3xbm-qrp.blogspot.com/
www.g3xbm.co.uk
www.youtube.com/user/g3xbm
G3XBM GQRP 1678 ISWL
G11088
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