Hi Stefan,
I will be watching the DF6NM grabber along with several others tonight.
I need a better receive antenna for Europe, but I can only build one
this year (it also has to be low cost). I have to make some decision
about what it should be.
When I have high static it usually causes some smearing of the
signal on the spectrogram. I didn't see any of that on Jay's
capture. It could be just some problem that is created by my
receiver. I will have to investigate it.
I will stay with DFCW60 tonight, but might change to 90 in next
night(s).
73,
Paul
On 03/21/2018 02:01 PM, DK7FC wrote:
> Hi Paul,
>
> Jay was (and is!?) using a cardioid antenna poiting to the east for that
> reception, which is certainly a big advantage.
> But how high or low the noise has been, you don't see it on that
> spectrogram. A dark noise background does not indicate low QRN, it is
> just the setting of the brightness slider in SpecLab.
>
> Unfortunately i'm QRMing my own LF RX due to my regular VLF
> transmissions. But the DF6NM grabber is just 175 km more distant and is
> active at http://www.df6nm.de/grabber/Grabber.htm
>
> 73, GL, Stefan
>
> PS: Using DFCW-90 may be a bit more easy to interprete on the
> spectrograms. My transmission was in DFCW-90.
>
>
>
> Am 21.03.2018 15:45, schrieb N1BUG:
>> Wow, Stefan and Jay, that is amazing. I get an impression Jay's
>> static level was fairly low at the time of that capture. Mine is
>> never low in March, which suggests my receive antenna may be not so
>> good. I believe Jay was using directional antennas. I just have a
>> low noise vertical.
>>
>> I am setting up to transmit DFCW tonight. My intended target is
>> DFCW60 on 137.779 but final details will not be available for a few
>> hours. I will begin testing now. When I am sure I know what I am
>> doing and have all settings correct, I will make another announcement.
>>
>> 73,
>> Paul
>>
>>
>>
>> On 03/21/2018 10:06 AM, DK7FC wrote:
>>
>>> PS: This capture was taken on Jay's side of course.
>>>
>>> And just to get an impression, with 25 dB SNR in 28 mHz you can
>>> transfer a 100 character EbNaut message in 5 minutes and have a
>>> spare 6 dB.
>>> A QSO is quickly done then. I mean a real QSO, like "Hello Paul, how
>>> are you? You are 10 dB above the decode limit. The WX is fine here,
>>> just a bit cold."
>>>
>>> 73, Stefan
>>>
>>> Am 21.03.2018 14:57, schrieb DK7FC:
>>>
>>>> Hi Jay, Paul,
>>>>
>>>> I still have the 12 captures from these 12 months. It was 2012. In
>>>> attachment is the image from March. Almost exactly 6 years old!
>>>> Time is running!
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