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Ever had an antenna...
G'day all,...that never worked as well as it should have? I love my single 20 m Quad loop and it works quite well, but I don't think that it has ever worked as well as it should have, or am I just expecting too much? Regards, Felix (vk4fuq) aka catman.
Last edited by catman; 09-04-2012 at 03:48 AM. Reason: Spelling. |
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Are you asking about transmission or reception? Do you judge reception by comparison to a different antenna? Willing to be educated here!
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G'day mate, stations never seem to hear me (at 100 watts of SSB) as well as I hear them. The 'law of reciprocity' should apply! Regards, Felix (vk4fuq) aka catman.
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#4
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SWR look ok? Any possibility that an insulator or coax could be "leaky" or breaking down at peak transmit voltages? Just WAGs on my part, I am not a ham, and don't own a transmitter.
jr |
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G'day mate, yes all those things have been checked (many times) in looking for a reason. Regards, Felix (vk4fuq) aka catman.
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Audiokarma |
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Quote:
Just some more WAGs, jr |
#7
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G'day mate, well I've had stations who were S9 plus 20 db (very strong signals) received at this location yet they claimed that they couldn't hear me!
For a while I was sure that I was beng snubbed, but I've been assured that this was not the case. This is my Quad loop along with all my experiments, warts and all including dumb mistakes! http://www.mds975.co.uk/Content/amat...tennas_03.html Regards, Felix vk4fuq aka catman. |
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Quote:
jr |
#9
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Quote:
According to QRZ.com and http://en.wikipedia.org/wiki/Ingham,_Queensland your QTH is a small town not near any major city, and likely to be a low noise environment. I've had the same thoughts, especially considering that I have a really common and boring prefix WA2. Quote:
I've been streaming 4KQ, (no, that don't count for DXing ) and they said something about a cyclone heading for Queensland, hope it misses you.
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Last edited by wa2ise; 03-06-2013 at 12:26 PM. |
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G'day all, it's been quite a while since I've looked at this thread and I'm happy to say that there have been some answers that have improved things very considerably as detailed here: http://www.mds975.co.uk/Content/amat...ml#metal_poles
However sadly it is my feeling that apparent Aspergers discrimination remains, especially as I now know that my beloved Quad Loop antenna is working well both on transmit and receive. I do happily have regular skeds with long time Ham Radio friends with 5/9 signals pretty well all the time on 20 m, but answers to my general CQ calls are still comparatively rare. That's sad, as I'm honest about my Aspergers and I even mention it on my QRZ.COM profile. Oh well, such is life, I'm afraid. Regards, Felix (vk4fuq) aka catman. Last edited by catman; 03-27-2013 at 02:31 AM. Reason: Spelling. |
Audiokarma |
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Quote:
http://www.wa2ise.com/cats.htm American cats, which look quite similar to your Aussie cats. =<^-.-^>=
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#12
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Most of my commercial antennas haven't lived up to expectations. My homebrew ones usually work better. Sometimes much better, HI!
As for a Quad loop, while I'm sure you've looked at your 50 ohm transmission line, have you looked at your 75 ohm impedance matching stub? Are you using 75 ohm cable with the same Vf as the 50 ohm? 73, W3XWT/6
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Reception Reports for Channel 37 TVDX Can Not Only Get You a QSL Card, but a One-Way Trip to the Planet Davanna is a Real Possibility... |
#13
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G'day mate, I feed my Quad loop with high quality 300 ohm balanced feedline as a tuned line, into a 1:1 choke balun and the ATU here in the shack down to 50 ohms unbalanced. Regards, Felix (vk4fuq) aka catman.
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#14
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Forgive me for asking things that I expect you have tried, but...
Is there anything else in your rig that is used with this antenna and not others? Is there a possibility of different modulation levels, for example? I also believe in the reciprocity principle, so the disparity between reception and transmission success is most peculiar. |
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G'day all, I've checked and cleared everything as ok. As I mentioned in my Quad loop page at one point my loop was actually facing the wrong direction (since corrected) which has helped a lot but now my loop is vertically polarised whch gives it good low angle radiation and a 'nearly' omnidirectional pattern (3 db down off the loop ends).
However this is where it gets a little grubby and human factors possibly apply. I do have regular skeds with a Ham friend in vk3 (Victoria) weekly with no problems and signals are on average around S7. My friend uses only a random length dipole similiar to a G5RV in length. I did mention 'snubbing' earlier. I suspect that this does actually happen. I have Aspergers Syndrome (I'm an 'Aspie') and my personality is 'different', and I suspect that for this reason other Hams around Australia (vk) 'pretend' that they don't hear me. I mention my Aspergers nature on my QRZ.COM profile page. I also do newsreading for our WIA National News service and I have been advised that my spoken news items are frequently picked up by the ARRL's 'ARnewsline' news service. So in the end, you make your own judgements as to what is really going on. Regards, Felix (vk4fuq) aka catman. Last edited by catman; 09-11-2012 at 08:41 PM. Reason: Spelling. |
Audiokarma |
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