Hello Stefan,
I will look for your signal on saturday and if you will start on sunday the SAQ transmission wont last for hours. So it will be possible to hear both - just with only one computer.
At the moment I am testing my Mini Whip. I am not sure, if the S/N ratio is enough. I will try to add a few meters to my four meters pole tomorrow. Possibly the QRM will be to high here anyway.
Would it be a good idea that all RX-stations use the same setup (.usr) on SpecLab? I now have collected 6 different files here in the reflector and I am a bit confused now which will be the best to start with.
vy72 Horst DO1KHS/DI2AN
Von: "Stefan Schäfer" <[email protected]>
Gesendet: 21.10.2010 17:26:07
An: [email protected], Paul <[email protected]>, "Renato Romero" <[email protected]>, "Barzen, Guido" <[email protected]>, "Bernd Grupe" <[email protected]>, "Christian Axtmann" <[email protected]>, "Bernd Strehhuber" <[email protected]>, "George Vastianos" <[email protected]>
Betreff: VLF: DK7FC's 8th VLF kite experiment
Dear VLF,
This weekend i plan to do my next kite experiment. I have got the permission for a kite ascent up to 300m above GND on my QTH in JN49IS36VH.
I will be QRV either on saturday or on sunday, depending on the wx. Attached you see the current wind forecast. For saturday the wind is not optimal, a little weak but it will be dry. On sunday the wind is quite strong and stable but there is probably some rain... I will have to see on friday evening if i can start on saturday or sunday and will announce that here.
If i will start on sunday, where the SAQ transmission takes place, this will be no problem since one can listen to SAQ and receive my transmission on an other computer based RX (e.g. SpecLab), so both can be done to the same time :-).
The starting time should be as early as possible. I have the permission at 6...16 UTC!
The program is to...
- rise the 200m vertical and transmit a long carrier (30 min) on 8970 Hz, after that a message in DFCW-600 and after that a message in DFCW-120, then a short CW test.
- transmit on 6470 Hz in DFCW-600 hoping to be copied at further stations (maybe M0BMU, SQ5BPF, OE3GHB, PA3FWM...?)
- if the wind will be optimal i will add another 100m and will try to transmit at 5170 Hz, 58 km band. This might be once again the lowest frequency an amateur has ever transmitted and reached the far field and above 1 Lambda, so each reception will be a WR for amateurs ;-) BTW, my grabber in Heidelberg is in < 1 Lambda ;-) The mode will be DFCW-600 as well.
- Then, coming back to 8970 Hz (maybe in the late afternoon) and transmit a looong carrier for long time integrations, maybe for a new ODX.
- reach 1,4 A at 8970 Hz, 1 A at 6470 and 5170 Hz
- be detected at 3 new stations and a new ODX ;-)
- use a GPS disciplined transmitter (trying SpecLab as the VFO and DFCW generator the first time)
- measure the R, 'C' of this 300m vertical on 137 kHz, preparing a new test there ;-) Since it is 55 % of a full size lambda/4 GP, 5 pF/m is not valid i assume
- be fascinated by the view of such an antenna which easily finds place in my car after the test ;-)
Until now i don't know who of the german LF group members would be possibly on the phone to make QSP to the reflector, just like Markus did it in the past. If there is a german member who likes to do that job, please send me a personal mail to exchange the phone numbers (Festnetz oder O2). Otherwise i have to play my game there alone and will see what happend in the evening ;-)
BTW, the generator is running again. It started to run again just as i have packed all my stuff in the car after the last experiment :-/ Never mind...
Have i forgotten something?
Please tell me if you think it is no good idea to transmit during the SAQ transmission or what is your favorite day, if both is possible here. I would prefer sunday, if the rain forecast changes to sunny :-)
73 and looking forward to the weekend :-)
Stefan/DK7FC
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