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From: "mal hamilton" <g3kevmal@talktalk.net>
To: <rsgb_lf_group@blacksheep.org>
References: <002801cd67f2$b2d3bd60$0401a8c0@xphd97xgq27nyf> <7B9F9E1EC7CF44AAB326502FF7F3A6BE@W1KW> <500C35E0.8010507@iup.uni-heidelberg.de> <43A1879A-58FF-480A-A148-65811EAB486E@dk8kw.de> <500D33D1.2090609@iup.uni-heidelberg.de> <500D3A23.7090207@iup.uni-heidelberg.de>
Date: Mon, 23 Jul 2012 17:32:22 -0000
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Subject: Re: LF: Re: 502 CQ
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I shall remain Silent while you devour each others observations, however
G8POC would like me to intervene so that he could ATTACH.
He finds it difficult to tell a DIT from a DASH!!!!!!!!!!!!!!!!!!!!!!! maybe
an Alligator
g3kev


----- Original Message -----
From: "Stefan Schäfer" <Stefan.Schaefer@iup.uni-heidelberg.de>
To: <rsgb_lf_group@blacksheep.org>
Sent: Monday, July 23, 2012 11:48 AM
Subject: Re: LF: Re: 502 CQ


PS: There is no definition that your ears have to be at least as good as
your mouth.
Especially on LF and MF there are much more RX-only stations who are
happy to receive a signal, maybe even in CW. The bigger your mouth, the
wider the distance you can reach RX-stations. If i would be a RX-only
station on LF, i would be amazed by receiving a signal from e.g. >
3000km. If nothing can be received then i would tend to focus on other
bands after some time. And who knows, maybe some of these RX stations
become interested to start arranging a TX system as well!
On the other side, i am happy to receive signal reports from OMs with
big ears. So it is always worth for everyone to do what is possible by
the personal limitations, the RX and TX side indenpendently. :-)

73, Stefan/DK7FC



Am 23.07.2012 13:21, schrieb Stefan Schäfer:
> Hi Geri,
>
> Am 23.07.2012 08:17, schrieb Holger 'Geri' DK8KW DI2BO W1KW:
>> Yes, it's partly due to groundwave/skywave conditions but I am
>> already known as the crocodile (big mouth, tiny ears) over here in
>> Northern Germany because my signal is 599 all around while I can
>> barely hear people.
>
> Mostly the description "crocodile" is used by those who are unable (or
> somehow unwilling) to radiate a decent signal on the band, LF or MF.
> If a poor antenna is used and then just a few 10 watts RF power, then
> it may be normal that you cannot hear them, depending on the path and
> time and QRN situation. If you have a good antenna and high power then
> it is no problem for others to hear you. If those OMs think "i can
> hear him but he cannot hear me, so he is a "crocodile"" then this is
> not your problem. So maybe you simply have a big mouth and normal ears
> but the other station has a small moth and normal ears! :-)
>
>> On LF I had optimized my receiving system pretty much but on MF I
>> have a high noise floor, probably from household electronics.
> Hm, normally this is a stronger problem on LF. But PA7EY has reported
> the same, his LF noisefloor is lower...
>
>> One solution surely is to put an e-field antenna some 25m away from
>> the house into the garden, equally far away from all houses in the
>> neighborhood.
> Yes this is certainly a good idea. For me this is no option though.
>
>> Currently I am using my transmitting umbrella antenna to receive,
>> which always proved best on LF but probably needs some re-thinking
>> for MF.
> My transmit antenna produces a big receive signal level of course but
> the S/N is at least 6 dB worse than the small active E field probe
> produces! (Of course i used an attenuator to achieve the same signal
> level, for comparison).
>
>
>
> 73, Stefan/DK7FC