Well you can't come out here making claims then not expect to get called on them, he said a antenna provided 20% more audio gain, but the best part is that was a advertisement from the manufacturer...LOL
ok well turn our attention to you, I can see an advantage being you can't use a tall antenna so a smaller antenna is a advantage but what advantage as far as performance when will a coil antenna outperfrom a full 1/4 wave with all certainty.
If you mount a 10k on bumper and a 1/4 wave on bumper which will work better?
If you mount a 10k on roof and a 1/4 wave on roof which will work better?
If you mount a 10k on a fender and a 1/4 on fender which will work better?
You can add the rest.
That is old news, move on... I did!
I suppose I should have known better then to use that analogy here.
There are more reasons to stay on this forum than to leave it.
Let me see how it went . . .
"Welcome to our Little Town of 5000 friendly people and 1 obnoxious person."
[what advantage as far as performance when will a coil antenna outperfrom a full 1/4 wave with all certainty.
If you mount a 10k on bumper and a 1/4 wave on bumper which will work better?
If you mount a 10k on roof and a 1/4 wave on roof which will work better?
If you mount a 10k on a fender and a 1/4 on fender which will work better?
You can add the rest.
In near field or far field? Simple basic physics.
Longer length= more radiating area
Longer length= more capture area
Any antenna shorter in physical length than 102" needs a loading coil so it can be resonant. Loading coils, contrary to much advertising hype do not make any gain on tx or rx.
Less length= less radiating area
Less length=less capture area
Still having problems understanding the theory?
Take a tape measure, measure a 102" antenna.
Then measure a coil loaded antenna.
By all means please come back to this thread and post the results of your length measurements.
So in theory in the "near field" of the antennas you are comparing
given that both RF exciters are identical in every aspect, you will basically see no difference in performance. Power handling capabilities excluded. This topic is about antenna performance not Power ratings.
In the "far field" length of radiator (as long as it is less than .64 wl, but we are discussing 102" ) will come out on top every time for tx and rx.
It is math, the numbers tell it like it is.
In the "far field" length of radiator (as long as it is less than .64 wl,
I wouldnt classify yourself as obnoxious, you seemd like a decent guy. Oh well.
You asked the questions, not anyone else. If you all ready know the answers to your questions then why take up the bandwidth?
Unless it is compared to .625 : )
More than ten years ago a humorous article on antenna gain was published in the ham radio magazine "QRV." The article stated that there are three kinds of gain:
1. the dB/d and dB/i gain based on CCIR regulations (the true and honest real gain!)
2. the "dB/ham radio gain," which is 6dB higher than the real one.
3. the "dB/CB gain," which is 10 dB higher than the real one.