Forget everything the manufacturers say about gain until they admit it's 0dbd. That's right, the Big Stick and Antron 99 have absolutely no gain whatsoever since they are end fed 1/2 waves. They should actually be just under unity gain due to small losses in the matching network and would be technically impossible to develop even one drop of gain.
"So what is the TRUE gain of the Antron 99? Assuming a 1/2 wave shunt fed dipole in free space, minus the
losses associated with the series capacitance and inductance, according to my math, the Antron 99 has 1.8
dBi gain. That is to say, the Antron 99 has 1.8 dB gain on the horizon over an isotropic radiator.
Referenced to a center fed 1/2 wave dipole, which is the industry standard,
the Antron 99 has a
NEGATIVE gain of 0.3 dB. This could also be stated as -0.3 dBd. As a reference, my old 5/8-wave ground
plane antenna had 3-dBi gain. So, the Antron 99 was a step 'down' so to speak. Replacing the Antron 99
with a new
5/8-wave ground plane antenna will result in a 1.2-dB gain improvement."
http://xoomer.virgilio.it/ham-radio-manuals/a99.pdf
Yes Shockwave, when will the masses believe...I guess never:bdh:
DOC: Sold Many of those Big Sticks, when my Elmer and I had the shop.
Not bad for cost at that time, but yes they were a little DEAF unless they were up in Clear Space +40 ft or more...
We sold 7 ft. Francis whips for replacement top sections, and "Firesticks" 5 foot'rs with adjustable tips worked just as well...
The old Avanti (Antenna Spec.) CLR II would kicks it's butt however.
All the Best
Gary