Hello all, several observations have been reported so far (including my own) that parallelling of different LF grounds do not always improve antenna current but even may reduce it, de facto increasin
Hallo all interested, the conditions which Bob, ZL2CA, has described concerning the QTH of Kevin, ZL4MD, in principle are the same as at my QTH: For LF I can use either the house ground, which is als
Doc Gruis schrieb: This following episode was told to me by an old time BC engineer about an early station located in the state of South Dakota. It was not at all unusual for stations, studios, anyho
Rik Strobbe schrieb: Few weeks ago I tested a small loopantenna indoor and noise was awfull. The 1 meter loop produced about 6dB more noise level than the big outdoor vertical and signals were about
Hallo all, as indicated before, the first austrian amateur LF station has come on the air on saturday afternoon, July 31st, 1999, under the callsign OE5ODL. I could not hear the station after 11.00 g
Lbr Peter, danke fuer die congrats. Nachdem die Botschaft von OE5EEP per QSP hier auf dem Server erschien, war ich natuerlich vorbereitet. Leider sind die OEs erst am Nachmittag aufs Band gekommen, a
Hi all, I do not know what kind of LF equipment is still existing at Kootwijk but the following news may be of interest to all LF fans: Dick Rollema schrieb: Today even less than before as the only t
Hallo all, in Lillehammer the german HF manager, DL1VDL, has told me that already in June of this year he had addressed the german administration and opposed against these new LF applications. So we
Dear all, the remarks of Mike, ZL4OL, reminds me of my two years as a wireless operator on a german freighter in the years 1956-58: At that time, a lot of vessels crossing the pacific from New Zealan
Dear Finbar et AL; THE POWER OF WCC and WSL I have taken from a 1959 list of coast and ship stations, volume 1, coast stations. Concerning a medium wave band, as stated on another occasion (DK8KWs me
Dear Finbar, thank You for your comment. I think the high powers of WCC and WSL were the result of the competition of the two different telegraph companies in the New York area, a situation we had no
Dear Kevin, so far I have not encountered problems with rfi from the mains supply. But I like to block every rectifier diode with several nanofarad in all my home brew power supplies (this also will
(Especially) dear US readers of this server, does anybody know whether this Radio Handbook, from which I own a 1975 edition, is still on the market with newer editions? (A typical question before xma
Toni Baertschi schrieb: PS. Actually it is very cold here and my antenna de-tunes from hour to hour as the soil is freezing deeper and deeper. Not only the resonance goes higher, the impedance is als
Hi all, on the IARU Region I conference at Lillehammer, Norway, I met S53BH, honorary president of the slowenian amateur radio society. He was interested in LF, and I have sent him some literature an
Dear Lawrence, remembering the few results on ground resistance measurements published on this server I would regard your 120 ohms somewhat above average for 136 kHz. My own value is in the order of
I would not use toroids for high power transmitting, just air coils. 73 Ha-Jo, DJ1ZB Christer Andersson schrieb: Hello (V)LF experimenters, I have an idea of resonating my existing vertical on 8 kHz.
Dear all, As well as HB9ASB I have noticed that the match of the LF antenna had changed considerably because of frozen ground, a change which could not be corrected merely by retuning the resonance o
Dear all, when collecting reports about changing ground resistance changes due to frozen ground (and the ground covered with snow) I think we must take into account the following difference: Commerci
Ich habe ihn heute gleich erwischt, beide Seiten 559 (jetzt bei mir mit LF-Vorverstaerker. AWDH bzw erstmal gute Reise! 73 Ha-Jo, DJ1ZB Walter Staubach schrieb: Hello to All, hrd OM2TW on saturday fo
