Does anyone have a "fix" for a fault that causes spectrogram (or windows) to crash when it's started up on 5k5 sample rate? It appears to happen irrespectively of the number of FFT points selected. I
Unfortunately I lost my LF-antenna in the storm and it is not to repair. May be I will come back one day in the next millennium. In the meantime I wish you all a happy new year and good DX. I had a Q
If you're building a loop don't forget that a lot off turns side-by-side constitutes electrically another loop at right angles to the main one, much smaller perhaps but quite enough to knock the notc
BIG ANTENNA MEGALOMANIA From the heading you might suppose that I am anti-large antennas. This is not true. My first introduction to Amateur Radio was G3JKV on Top Band from RAF Shawbury, with a 140f
My 3 inverted L antennas are not strung together but spread out around the mast so go back to the drawing board. When I progressed from 1 to 3 inv L antennas I noticed signals up around 1S point (6
Hello Christer I came across an article from "Electronics World" Feb 1990. "Reducing mast height at MF". Tuned counterpoises are treated and some real world references are = given. I can send a scann
This report was delayed until the AMRAD report had been published on the website. This should be read in conjunction with the AMRAD report It was further delayed because of pressure of other work and
Are we locked into HF thinking here? Why not use an iron cored inductor such as the output transformer from a QRO valve audio amplifier? Mike, G3XDV Although an output transformer might be fine for
Don't all get too excited about the prospect of Rugby being off Tuesday. The 60kHz transmitter is indeed often off on the first Tuesday, but normally not until at least 10am However, checked the ban
This seem to be true. According to EZNEC the polar diagram of an electrically short antenna is the same which ever way you configure it. So an inverted L or V or a T antenna all have the same polar
I had another session of operating from the Chalk Pits Museum (or Amberley Industrial Museum as they now like to call it). I have constructed a matching transformer with a wide range of taps to try t
From Rik Further I noticed following in QRSS (arround 21.20 UT on 137725) : strong station (549 audible) : ... MM MM K weak station ('M', not audible) : R R TU Q... (faded in QSB) Who was working who
Last night, 14/2, at around 2035UT I saw I5TGG . His signal was 137.726kHz on my scale calling CQ but the signal faded out. Just a little earlier a strong QRSS signal at 137.729 is GM3YXM/P was seen
An apology is in order about the 1996 date on my last couple of e-mails. I fitted a new hard drive and reenstalled the SW and forgot to reset the date. -- Regards, Peter, G3LDO
Hi Peter thanks for the Spectran screen. I wonder..... The tranmission on the right is definitely Cesare........ I put a pair of dividers on the penultimate character of the strong signal and it was
from Cesare After your last message I have inspected once more the = spectran screen and I suspect that the weak signal at left of the screen is the end of my previous CQ call. In fact I have = chang
from James Moritz Spent a couple of hours on 73kHz on Friday evening; didn't see/hear any other signals - Rugby TX was generating it's usual racket. However, the effort was worth it because my signal
Set up the station for 73kHz after some time trying to discover the resonant point of the antenna after making some changes. Amplifier and antenna working fine with over one amp antenna current. Set
Looked for I5TGC again on Saturday evening. His signal came up to a very good 'O' at 2030 and went down into the noise within 10 mins. Another expedition to Amberley Museum. Had a QSO with GI3PDN bef
From Markus Last night, I could see several of you (YXM, BMU, XTZ, LDO) in x-band qrss action with HB2ASB, ON7YD (DFCW) and DK8KW, but didnt get through. Peter's tx running up and down like a wild ho
