Is there a fairly simple interface unit which will enable me to transmit WSPR signals using my home built MF TX ? My TX has a VCO / FSK facility but no audio inputs. I've had a search of the in
Shoot me down if this is a rubbish idea, but I'll share it anyway.... If Paul has space and 4 tall trees, how about creating a large spiral top to the vertical, much as I did on 500kHz? Not sure what
Roger Back from Blizzards, snow drifts and endless rain. Everything else in the Emerald Is was fantastic !!!!!!!!!!! Back here its volcanic ash, clouds of sulphur and a no fly zone and the Dreamers
Ah, too bad we didn't know about that earlier. Raw data from Todmorden for the 17th has been cleared down by now. There may have been a trace of the signal in there. -- Paul Nicholson -- -- http://
-- Original Message -- From: [email protected] mal hamilton To: [email protected] rsgb Sent: Saturday, April 24, 2010 6:25 PM Subject: UNDERGROUND Dreamers, LF and MF Very little ac
This morning I have been successfully TXing and RXing on 500kHz WSPR and received reports from the usual people. Likewise, I've been decoding all the usual stations at normal strength. For some reaso
Hi Paul, Well, I get grumbles from my dear XYL of nearly 40 years for a small 28MHz wire halo on a 5m pole (this is my 500kHz antenna with feeders strapped) so there is no hope of a massive antenna f
If you have a modern PC it will have a Hi Def card giving a band width of 196kc/s if you set the LO on the sdr application to 0.000.000 the readout will direct in kc/s. Set you input in the drop do
Hello Roger, interesting. Did I read it correct that your transmit frequency is 1kHz instead of 9kHz ? I gues that also ground antennas become more efficient at higher frequencies. How did you mat
Thanks Horst. I'll try a Marconi antenna at some point, although my space is limited to little more than the antenna I used on 500kHz (a top loaded 5m vertical). This evening I extended the TX elect
Stefan (et al), Sorry, the last link was wrong. Try this one: http://tinyurl.com/354lzsp . It is best viewed with the satellite image that clearly shows the fields nearby in which receive tests on su
Yes, the loop will null the signal when turned 90 degrees but the signal was strong enough yesterday to be copied, just, when the loop was in its worst orientation some 300m away from the TX. In my v
Hi Mal, Excellent news that you're taking steps in the 8.97kHz direction. Your involvement will be much appreciated by many and there are lots of DX records for you to set. It would give me the great
This week I've restarted tests using 3-4W into my 10m spaced grounded electrodes at 1-9kHz. On receive I'm using an 80cm loop into a Sallen-Key active HPF followed by 3 stages of audio gain into a cr
There are several sources in the UK for toroidal mains transformers with various step-down ratios. See for example http://www.airlinktransformers.com/toroidal-transformers.asp . These sell for £12 to
Not a signal in QSO mode on 600 but some lovely signals on 6 metres, best dx worked a few minutes ago UZ5DZ on cw mal/g3kev -- http://g3xbm-qrp.blogspot.com/ http://www.g3xbm.co.uk http://www.yout
Thank you for your fast reply Stefan. In answer to your questions: Currently, my TX electrode spacing is 10m, which is the best I can manage in my small garden. Both electrodes are as far away from t
So, if you would try SpecLab or Argo on a PC and use a stable VFO i think it is no problem to reach those 3kms in say DFCW-600. Than, it is much more easy to improve your system since you can see how
The navigation has been improved for a more user friendly browse. Lots of new & expanded items & links with all of the older stuff. Please report any errors or problems. 73 Gary - G4WGT -- http://g3x
