From: Gerhard Hickl <gerhard.hickl@aon.at>
To: rsgb_lf_group@blacksheep.org
In-Reply-To: <33D6A4990B7B45149663D84D52C052CA@JimPC>
References: <1245582735.4291.6.camel@gerhard-laptop>
	 <33D6A4990B7B45149663D84D52C052CA@JimPC>
Date: Sun, 21 Jun 2009 16:38:45 +0200
Message-Id: <1245595125.3782.14.camel@gerhard-laptop>
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Subject: Re: LF: Re: 137khz RX-Test
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Hello James and the group!

Thanks for the reply. Unfortunately I can't copy your signal in the
moment, let's hope for the evening/night.

I'm using my shortwave-antenna, a 55m long endfed wire in about 12m
height as antenna for lf. it's connected to the unsymmetrical input of
the Selective Level Meter. I think using this antenna is the first
problem. Another one ist that I don't have a preamp yet. The 2nd antenna
is a resonant frame antenna with about 1m diameter. Unfortunately I
haven't managed to bring it outside somehow and so I'm using it in the
shack which gives me a lot of QRM, especially from the tube-monitor
(n*75Hz vert. frequenzy).

The Level Meter only has a 22Hz and a 3.1khz filter. I just can use the
3.1 filter which gaves me lot of QRM from DCF39. I have tuned to 137.15
becasue I found that this qrg is quiet (-107dbm) compared to some 100Hz
up and down where the noise level is up to -92dbm. I think this noise is
produced by the carrier of DCF39 somehow.

As you may have noticed, I'm a LF beginner and it seems I have to work
on the sensitivity of my equipment. I'm living 30km north of Vienna and
I think QRN and QRM is not so bad here.

Any suggestions welcome.

Thanks a lot
and 73 de OE3GHB

Gerhard Hickl



 


Am Sonntag, den 21.06.2009, 13:53 +0100 schrieb James Moritz:
> Dear Gerhard, LF Group,
> 
> I am currently (1242utc) transmitting a DFCW beacon signal on 137.680kHz, 
> with ERP of about 300mW. There is some QRN here, but band noise is not too 
> bad. QTH is just north of London at IO91vr. Previous experience indicates 
> you may see something in OE during daylight, but don't be suprised if you 
> have to wait until after dark to copy the signal. Any reports very welcome.
> 
> Cheers, Jim Moritz
> 73 de M0BMU
> 
> ----- Original Message ----- 
> From: "Gerhard Hickl" <gerhard.hickl@aon.at>
> To: <rsgb_lf_group@blacksheep.org>
> Sent: Sunday, June 21, 2009 12:12 PM
> Subject: LF: 137khz RX-Test
> 
> 
> >
> > So if anybody is planning activity on 137 for today, please let me know.
> >
> > Tnx and 73
> >
> > de OE3GHB
> >
> > Gerhard
> >
> >
> > 
> 
> 
>