Dear OM, My message of 12:06 apparently was not passed on by the reflector so I now send it anew but without attachment. 73, Dick, PA0SE -- Oorspronkelijk bericht -- Van: [email protected] Dick
To All from PA0SE Petr, OK1FIG wrote: Someone else here also mentioned that they don't have limited ERP on 136 kHz, I guess it was PA or ON land? It is in The Netherlands. According to our regulation
Dear OM, On second thought the simple method of measuring Q of a coil described by James Moritz can even be performed when the internal resistance of the signal generator is unknown. If you don't pos
Dear OM, Your three Q measurements indicate that your measurement techniques are sound - unlike mine! It occurs to me that I could use my HP vector impedance meter to measure Q using the series reson
To All from PA0SE What you really want to know is the equivalent series resistance of the coil. I usually do this as follows: Connect generator to meter and measure ampliude V1. Then connect a series
Dear OM, If you measured the bandwidth of an entire antenna system, (earth-tuning coil-antenna), then measured the bandwidth of the coil itself alone, could this be used to get some idea of earth los
Dear OM, Spectran is ok if u are contented with one filter. I do use "SbFFT by KW5Q" when dxing on sw or looking for spurious. with SbFFT u can switch up to six individuel/independent filters. I donī
Dear OM, I have been told there exists a computer program that not only presents received signals as a waterfall display but can also make one of the signals being heard as audio via the computer spe
Dear Old Man, Received Jim M0MBU November 10 at 2330 UTC with a field strength of 13.5 microvolt/metre. 73, Dick, PA0SE Dear LF group, I find myself without a decent "transatlantic" antenna at the mo
Dear OM, Just to say that I have heard from Steve GW4ALG that Bob G8RW has now given up operation on 136 following the appearance of the MB7LF 'repeater' and associated events. This is yet one more l
Dear OM, Isn't that dangerous? This question has been posed before on the reflector and the answer is the same: the gas pipe is also used as safety earth for our electricity supply. In case of a shor
Dr. OM, I just put Dick's data into excel, the trendline says R = 4568/F Remarkable is that, while the previous data (M0BMU, ZL2CA) gave a very good fit, there are a lot of 'bumps' in Dick's data. Th
Dear OM, After M0BMU, G3NYK and ZL2CA I also measured the resistance of my aerial/earth system. The aerial is a dipole of 2 x 20m with 11m open line feeder. See attachment. The two legs of the dipole
To All from PA0SE Laurie, G3AQC wrote: When I came into the shack this morning it was snowing ! rather wet snow,and the ant. wires were about half inch diameter ! I turned on the Decca to check, and
Dear OM, Some days ago I received a message with a question on a German spy set. Unfortunately I lost the message due to a breakdown of my computer. I don't remember wether it came direct or via the
To All from PA0SE Many thanks to all who replied to my request. The checklist that can be found at the URL given by John, G4CNN, is a most useful one. I would recommend to print it and stick it to th
Dr. OM, Just worked a new one, PA3EGO, my 18th PA-station. Operator is Wim and QTH De Meern, near Utrecht. I gave him RST 579 and received RST 599. 73, Dick, PA0SE
Dear OM, The following matter has nothing to do with LF but as former editor and corrector of VERON magazine Electron I nevertheless take the liberty to beg your opinion on it. In our country units t
Dear Jim and others, I also enjoyed your article. Almost steam radio... 73, Dick, PA0SE At 21:57 21-2-02 +0000, you wrote: Have just read with much pleasure M0BMU's article in radcom. I have often I
