Ha Ha, well that proofs that I actualy did the measurement's :-) Later this week I will check if the offset has to set to 0 or perhaps -0.0016 Hz 73's and tnx for info. Peter de PA1SDB -- Original Me
Hello, I did just check the error on 11.904,761 KHz. " Effect of FFT settings with fs= 48.0000 kHz: Width of one FFT-bin: 423.855 uHz Equiv. noise bandwidth: 635.783 uHz Max freq range: 8.91444 kHz .
Hello Roelof, U use the 2N5109 like you suggested :-) Also that J310 Fet. Also the 470 uH chokes. I did try to keep it orginal as you did designed it. Also PCB is the same (90 x 30 totaly and 45 x 30
Hello Stefan, I did already re-build the LF RX situation here befor your mail came in. I went back to 9 Khz already and was not able to do that noise measurement test. I'm not sure why you are 'only'
Hello VLF, This what I see here over the last 24h. I think the strongest signal is visible on 8970,022 Hz. If I close one eye, then I think to see also traces on 8970,002 Hz over the night. Yesterday
Hello all, Today I did plant the "PA0RDT Mini-Whip" antenna in the backyard at about 20 meters from the house and 4 meters above ground level. Last 2 week I was using 2 pasive loop antenna's who wher
Hello Wolf, Stefan, Andy, Eddie, VLF. Tnx all for the info about generating a stable signal on 8970.1 Hz. I have here 2 other PC's/(older) notebooks where I like to do experiments with, and also on t
Hello Stefan, VLF, I think you are very lucky with a PC that generates such a stable signal. use the digimode frequencies given by the receive side i a stable trace. :-) > I tried two notebooks now.
Tnx Eddie, Lets see what happens from now on (11h00 UTC) I have now configured a continue test tone at 8970.1 Hz in that Digimode terminal. SR cal is locked at 22KC1 A few 100 mW of notebook audio in
Hi Eddie, No, I did'nt use that Digimode terminal to generate a signal, but just the Signal generator in that Components / Circuit window. 73s Peter. PA1SDB -- Original Message -- From: qrss@talktalk
Hello VLF, This is what I did receive this afternoon (1th of April, 2012) Very weak but a straight trace at 8970 Hz. I think one of the stations on 8970 Hz did drift 0.0004 Hz (or so) down today. Can
Hello Uwe, You are not far from my QTH Uwe if you are in jo43sv. Abt 133 km. Closer in relation to PA3CPM, 170 km. But I don't understend where to look for you ! What is CASTLE mode ? Where can I fin
Hello, That peak at 8970 Hz looks good, isn't it !? It takes unfortunately a few hours befor something gets visible at 47 uHz. It it not clair who of you both this is. There are two stations on exact
Hello Uwe, I think the TX was switched off at 09h45m UTC today.... There is not much difference in signal level in relation to the weekend broadcast. Most bright pixel 13/4 was at 23h with level -120
Hello Mauro, Did you take notice about my experiments regarding feeding the antenna with a battery ? Take a look at the pictures around the 25th of March in that log: http://www.qsl.net/pa1sdb/Experi
O.K. Mauro, Let us know if you found the sollution in your noisy case :-) 73s, Peter - PA1SDB Hi Peter, yes, I read your experiences .. My antenna was already powered by battery .. I think my problem
No problem Eddie. If it fails, "no man over board". (dutch saying :-) In the few weeks that I'm here, I did learn a lot about S.L. Locking, uHz, etc. And learn to have patience :-) 73's, Peter PA1SDB
