Message-ID: <004401cca944$6d6caa10$0401a8c0@xphd97xgq27nyf>
From: "mal hamilton" <g3kevmal@talktalk.net>
To: <rsgb_lf_group@blacksheep.org>
References: <BDEMKFCNLMIILGIFNONNMEPEDPAA.victor13@online.nl> <E1RSWCt-0005HF-00.rn3aus-mail-ru@f278.mail.ru> <4ECAB837.10908@iup.uni-heidelberg.de> <E1RSun3-0001QF-00.rn3aus-mail-ru@f128.mail.ru>
Date: Tue, 22 Nov 2011 18:27:44 -0000
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Subject: Re: Re[2]: LF: 5X grabber is ON
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Tnx Alex
for your effort but it is a long way to Kampala on 137 with limited power of
around 1W erp max. You might need a Rhombic or V beam to detect radio
amateur signals which are very weak at that distance.
73 de mal/g3kev

----- Original Message -----
From: "Alex K" <rn3aus@mail.ru>
To: <rsgb_lf_group@blacksheep.org>
Sent: Tuesday, November 22, 2011 6:09 PM
Subject: LF: Re[2]: LF: 5X grabber is ON


> Hello Stefan, Mal, Laurence, LF!
> Thank you for your activity.
> On screenshots which are on mine grabber, it is possible to see only very
weak trace on 136171,2 Hz (23-00 z) and 136172 Hz (nearby 00z). Calibration
of my equipment has an error of 0,2 Hz. These traces, unfortunately, are not
readable, it is possible to ascertain only that the signal, probably, is..
Having heard to record of a night air, I have made for myself discovery that
I hear signals DCF39 and HGA22! A small fragment of record at 23:50 z
http://rn3aus.narod2.ru/uganda/lf-uganda-21nov_2350z.wav. Frequency of the
receiver is 135500 Hz. The carrier of HGA22 does not get trough IFpass-band
filter.  DCF39 is on the top border of a pass-band.
> Unfortunately, meanwhile I cannot estimate the signal-noise ratio of
DCF39.
> The air here is very similar to a summer air during a near thunder-storm.
> I hope that I will to make one more attempt to start grabber, having
established the aerial on more tall mast, within the next few days to
departure from Uganda. Certainly, as soon as it will be possible, I will
inform about it here.
>
> Unfortunately, the Internet is accessible to me only periodically and I
have a lot of work here. Excuse me if I don't answer some e-mail or I answer
with the big delay.
> vy 73 de Alex
>
> 22 ноября 2011, 00:47 от Stefan Schäfer
<Stefan.Schaefer@iup.uni-heidelberg.de>:
> > Hello Alex,
> >
> > I started my TX now and will run it over night.
> >
> > Am 21.11.2011 16:54, schrieb Alex K:
> > > Hello LF! This night my 5X grabber is on-line
http://rn3aus-lf-grabber.narod.ru
> > >
> >
> > Will that be the last night you're running the grabber or will there be
> > even more nights/chances?
> >
> > Have you tried to check for the DCF39 S/N and if, which S/N did you get
> > (in 1 Hz NBW)?
> >
> > Is the region arround 136.17 clear or would it be more promising to try
> > in the 137.777 region?
> >
> > 73 and many thanks for that nice portable receiver in
> > Africa!!!!!!!!!!!!!!!!!!!!!
> >
> > Stefan/DK7FC
> >
> >