Sorry Wandel&Goltermann! SPM19 is W&G of course and not R&S. 73 de Matti OH2ZT Thank You Alberto for nice PHD Radio-program. It works great with my R&S SPM19 level meter. The sound quality is surpris
Thank You Alberto for nice PHD Radio-program. It works great with my R&S SPM19 level meter. The sound quality is surprising good. The one second delay is not a problem. Many LF enthusiasts have a Sel
Hello Wolf, About the 10MHz oscillator you asked I can only give a hint, that QK in rombic means Quarzkeramik, the German company which locates in Stockdorf. The company belongs now to Vectron Group.
Thank you very much Jim for SPM-19 input impedance info. Sometimes I get error message 1--202, which disappears when I change attenuatorīs value. Could you please check whether the manual can tell so
Dear Jim, I have SPM-19 too but without any manuals. Could you plase check what kind of input impedance is in "unbal 75" but selected without termination (infinite). Instrument works great if not gon
Hi Walter, I am interested in Termans Handbook. Still left? Price? Have a spare copy of Termans' 1943 "Radio Engineers' Handbook" if anyone wants it. Also Vol II, 1938 ed. "Admiralty Handbook of Wire
Hi Alberto, Station you see on 18.3 KHz might be Le Blanc (Rosnay). All these VLF stations have highly stabilized frequencies, but MSK-modulation complicates their use as standards in radio amateur u
Hi Alberto, You probable see in the picture Tavolara Italy which listed on 20.27 KHz. Most of the VLF stations use MSK modulation. 73 Matti OH2ZT -- Original Message -- From: [email protected] Alberto d
Hello Wolf, Look at http://www.vlf.it/, there is also info about exact locations of RSDN-20 stations. 73 Matti/OH2ZT -- Original Message -- From: [email protected][email protected] To: rsgb_lf_group@black
Hello Rik, Based on my observations frequency shifts 1-2 Hz on 10Mhz are quite common during sunset and sunrise. During good daylight propagation shifts are much under 1 Hz via path of 500-2000 km. 7
Hello LF-Group, In a book Klawitter-Herold-Oexner: "Langwellen- und Laengstwellenfunk" by Siebel Verlag (2000) is a good description of Goliath system pp 47-52 and also info about other historical VL
Hi Hugh, The "pot-core" was a very characteristic name for former round ferrite types 18 x11, 26 x 16 etc. Because of "butterfly" style of R and RM cores it is better not to call them as pot-cores. S
Hi Wolf and other GPS experimentists, I bought my GPS module from Joop van der Velden in Holland. Look at http://www.gpskit.nl/. I am very satisfied with the unit. It has also a built-in 10 kHz phase
