To: rsgb_lf_group@blacksheep.org
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 <5A67114F.1411.198B597C@mike.dennison.ntlworld.com>
From: Martin Evans <gw3ucj@btinternet.com>
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Date: Tue, 23 Jan 2018 12:18:48 +0000
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Subject: Re: LF: 136kHz - this is how badmy system is!
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Thanks Mike.

Yes of courseÂ  - silly me - I do remember to upload spots on occasion 
but it had never occurred to me to compare reports. The obvious 
solutions are often the best (especially if like me you don't understand 
the complicated ones!)

It's pleasing to see that you think that I'm receiving reasonably well - 
gives me encouragement to improve it.

I am especially pleased considering that I don't receive well to the 
North or EastÂ  - the not inconsiderable bulk of the Brecon Beacons sits 
just behind me.

Thanks again.

Martin GW3UCJ.

*************************************
> There is no need to wonder how good your (or anyone's) receive syatem
> is. By using the databases for Opera and/or WSPR
> (http://wsprnet.org/drupal/wsprnet/spots)
> simply compare the reports you are giving a particular station with
> the reports from others who are a similar distance away from that
> station. You can also average the comparitive reports on Opera and
> WSPR to get an idea of how accurate your frequency setting is.
>
> In your case, Martin, you appear to be receiving DCF39 well, but I
> expect it would work even better with a tuned antenna. My own system
> shows over 60dB between DCF39 and noise in an SSB bandwidth during
> the daytime, but of course I have less land between me (in
> Hertfordshire) and Germany. I have just looked at the database and
> cannot see your reports so I presume you are not uploading any.
>
> Mike, G3XDV
> ==========
>
>> Watching Roger's adventures on 136kHz, I thought I'd goÂ  take a look
>> and I wondered -
>>
>> DCF39 is about 50dB above the noise at 16:44UTC.
>>
>> I'm using a 150ft inverted L, untuned, stuffed directly into an Elad
>> FDM-S2 SDR.
>>
>> Decoded G3XIZ, G4FTC, G8HUH & G4GIR between 16:12 and 16:44.
>>
>> What does this say about my setup?
>>
>> Is it deaf/average/ok?
>>
>> How far above the noise is DCF39 in an optimised "good" setup?
>>
>> Anyone tell me?
>>
>> Martin GW3UCJ Swansea.
>>
>
>