Hello Mal, There seems to be some confusion about large and small vertical antennas on LF. Although the radiation patern(profile) is the same the INTENSITITY of the propogated signal is much greater
Hello Steve, when I learned for my license at the beginning of the 70ties, I still used to learn the old system for S 1 to S 9 reports to be judged by ear. And that of course depends very much on the
Hi Mal, I work DJ9IE frequently and usually get a 589 report. His RX capability seems good to me. In fact I do not have any difficulty with any German station regardless of their QTH, but DJ9IE is by
Hello friends, the signal of G3WSC/p was -89 dBu here tonight at a distance of 697 km. Taking my correction factor into account (see http://www.qru.de/dbuv.html), the field strength was 19.1 dB micro
Dear LF-band enthusiasts, As DCF39 is one of the few LF signals that has been heard on the other side of the atlantic, it might be interesting for further field strength calculations to know the ERP.
Dear friends, following my previous mail, I just updated my longwave homepage with more information on DCF39, including pictures, the field strength profile and the ERP measurement (40 kW ERP) Gamal
Hi friends, In case Larry (or some others at the other side of the pond) watch the signal with Spectogram it might be a good idea to add 5 to 10 second 'dash' while beaconing (or next best a series o
Larry, A vigorous discussion on the path loss over land issues will be most appreciated. Larry VA3LK at least the pass loss over Germany seems not to be as serious as we anticipated. If you have a lo
Hello YLs and OMs, I made some field strength measurements of the G3WSC operation as follows: Call ERP as Field Strenght said in QSO == G3WSC/p 1 W ERP 19.1 dB microVolt/m G3WSC in QSO yesterday nigh
Hello friends, I made some laboratory tests this morning to get some indication about the ability to communicate with signals below noise level using Slow-CW. I used a calibrated frequency synthesize
Peter, Geri, I would be most interested in any tests you may make on Spectran - I take it you have a copy.< yes, I have the software but need to play around with it to get fully aware about all the f
Dave, 9 x 9 = 81 and 81x 5 ohms = 405 Watts (after losses) delivered to the antenna which at 15% efficiency is just about 60W radiated. and yes, the variometer ( A litz wire professional unit) was qu
Hello Renato, Hi! I have a selective voltmeter Wandel & Goltermann TFH-2. I tried to listen our 136 khz qso but I was not able to listen (i have a multiturn loop homemade, 1 m. diameter, tuned via a
Hello Veino, 2. Due to ITU and EBU requirements we are engaged to use relative unit dB(mW), after some problems with our customers we have adopted "dBmW" instead of normal "dBm". In fact ITU regularl
Hello YLs and OMs, just had a QSO with G3WSC (op Justin) on 137.250 kHz. We arranged a crossband sked for this afternoon (Sunday, April 16, 2000), 14.00 UTC. G3WSC will transmit on 71.800 kHz, I will
Hello Decca Crew! To G3GRO and crew Hrd u 579 on 71,8KHz at 1550utc in JN59NO, strong QRN, QSO with DK8KW on 137. vy gd sig, 73 Walter DJ2LF Yes, indeed, a very good signal. 569 here in JO52BH, that
Hello Dick, great that you also made your field strength measurements. we find at Puckeridge 45W was fed to the aerial on 136kHz and 7.5W on 73kHz. The difference between your findings and mine (16 W
Rik, keinerlei Einwände gegen Übernahme meines Materials! Das erspart es mir, das Material auf meiner Webpage entsprechend darzustellen ;-) Überigens gefällt mir Deine Page außerordentlich gut! Insbe
Another weekend gone and no key clicks here either. It seems that all I want for Christmas is some key clicks. Make my day, send me some key clocks, one for the start of every dit, another for the en
Hello Marco, is your test beacon currently on? I got Spectran Beta 2c running now and would like to give it a try throughout the Easter weekend. Thanks and 73 Geri, DK8KW (W1KW)
