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Re: LF: MF acty

To: <[email protected]>
Subject: Re: LF: MF acty
From: "mal hamilton" <[email protected]>
Date: Wed, 5 Sep 2012 15:47:24 -0000
References: <[email protected]> <836728322-1346785992-cardhu_decombobulator_blackberry.rim.net-2129170870-@b17.c17.bise6.blackberry> <[email protected]> <[email protected]> <CB3812FA614B42EDB5B6056683927536@AGB> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
Stefan
I was able to hear all the German Beacons ALL day long on 505 Khz. and can
work most of Western EU during the daytime on CW
and especially the PA stations
It depends who is listening and the ERP at the TX end
de mal/g3kev

----- Original Message -----
From: "Stefan Schäfer" <[email protected]>
To: <[email protected]>
Sent: Wednesday, September 05, 2012 3:19 PM
Subject: Re: LF: MF acty


MF,

Here i've made a diagram showing the SNRs as a function of time of those
stations who received me on 477 kHz since this day.

It shows clearly that the groundwave path must be very stable over the
daytime and seems to be limited to less than 500km. There are stations
who are continually monitoring the QRG but as soon as the sunrise comes,
no signals are detected in the UK while the levels are 25 dB above the
decode limit in the night.

So far there were no TA decodes during the last night. I think i will
run the TX for another 24 hours in that mode. I'm looking forward to the
effect of different RX locations when the sun goes down in some hours.

The diagram is here: https://dl.dropbox.com/u/19882028/MF/OP4SNR.png

73 and tnx to the RX stations!

Stefan/DK7FC




Am 05.09.2012 01:36, schrieb Graham:
> Stefan
>
> G..
>
> Monitor: VE1VDM Loc FN85IJ
> Frequency: 0.477 MHz (600m)
> Using: Opera v1.4.3/Rptr V1.6
> Antenna: RX Op4
> Show all seen by VE1VDM
> Last report: VE1VDM
> at Tue, 04 Sep 2012 23:29:12 GM
>
> --------------------------------------------------
> From: "Stefan Schäfer" <[email protected]>
> Sent: Tuesday, September 04, 2012 11:56 PM
> To: <[email protected]>
> Subject: Re: LF: MF acty
>
>> MF,
>>
>> Thanks to PA3ABK for the QSO!
>>
>> Maybe i'll be back in CW tomorrow. At least i will run OP4 on 477 kHz
>> over the night, now that the system is resonated to MF and the TX is
>> ready to go...
>>
>> 73, Stefan/DK7FC
>>
>>
>> Am 04.09.2012 21:24, schrieb Stefan Schäfer:
>>> Hi Vernon,
>>>
>>> Am 04.09.2012 21:13, schrieb [email protected]:
>>>> I will listen....will u have enuff little watts to make it across
>>>> the pond..
>>> Yes, i think so. But i don't know when the band opens to your
>>> location. Maybe you will hear me. If so, pse give me a feedback.
>>>
>>> 73, Stefan
>>>
>>>
>>>> Vern
>>>> Sent on the TELUS Mobility network with BlackBerry
>>>>
>>>
>>




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