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73 Amateur Radio - Free and Open Source Software

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Number 29 on your Feedback card<br />

73 Review by Marc Stern ;\,1BJ. H<br />

Wilson 1000<br />

Mobile Antenna<br />

Wilson Antenna<br />

2 Commerce Center<br />

Henderson NV 890 14<br />

(800)541-6116<br />

Price Class: $90<br />

Get into some 10m mobile QRO with this whip.<br />

NOW that we are nearing the peak of what<br />

promises 10 be the best sotar activity<br />

in history, many operators are discovering<br />

the fun of the 10 meter band. It's a band<br />

which combines the attributes 01 HF and<br />

VHF, and offers lots of prime DX. With such<br />

recommendations. is it any wonder that 10<br />

meter rigs are selling like hoi cakes. and<br />

that Novices are on the air using their phone<br />

privileges?<br />

10 Meter Antennas<br />

One of the more interesting aspects of 10<br />

meters is the antenna. There are so many<br />

possibilities that it can boggle your mind. For<br />

example, you can convert a tcs-rcn CB whip<br />

10 10 meters (11 meier CB to 10 meter Ham).<br />

you can convert one of the many maqneucmount<br />

or shortened 10 meter antennas, or you<br />

can buy a 10 meter antenna made specifically<br />

for the band.<br />

One of the better 10 meier antennas that<br />

we've found latety is the new Wilson 1000.<br />

Wilson, long a manufacturer of quality communications<br />

antennas, is a name that many<br />

will remember fondly as one of the pioneering<br />

firms in VHF c ommunications. Although<br />

Wilson has been out of the radio manufacturing<br />

business for a few years, it has remained in<br />

the antenna business. The firm's long experience<br />

shows up in the 1000.<br />

For starters, it just doesn't look like other 10<br />

meter antennas on the market. Maybe it's the<br />

big base loading coil, Of the GO-inch-plus tapered<br />

17-7 steel radiator or, maybe, it's the<br />

Pl-259 connector in the base of the antenna.<br />

Who knows? All we do know is that the antenna<br />

works very well. In a comparison test with<br />

the American Antenna HAM-l0, we found that<br />

the 1000 performed as well as or belter than<br />

the HAM-l0, and was far less prone to noise<br />

pickup. (The test setup was: a clear parking<br />

lot; our car; Uniden HR-2510 and Clear Channel<br />

AR-3500; and a field-strength meter.) Using<br />

an atteneatcr. we cranked the power back<br />

to about one Watt and tested the antennas.<br />

The results were interesting-the Wilson performed<br />

better, especially toward the lower end<br />

of the band.<br />

That is one of the interesting points about<br />

the Wilson 1000: It arrives set up to work in the<br />

tower end of the band. We still found the<br />

VSWR too high for our liking, and trimmed the<br />

radiator about 5 inches to make sure that the<br />

antenna was resonant.<br />

It is fa irly flat<br />

a cross the entire<br />

band, although the<br />

VSWR does climb at<br />

the high end, near<br />

29.600 MHz.<br />

On the air. asos confirm the poin t that the<br />

Wilson 1000 is a fine performer, on a par with<br />

full quarter-wave mobile Whips. It is a loaded<br />

antenna, which effectively increases the a of<br />

the antenna circuit and limits its bandwidth.<br />

To keep these tosses to a minimum, Wilson<br />

uses quality constructions techniques. including<br />

a wide base loading coil that is made out of<br />

10 gauge, silver-plated wire. The tap point is<br />

determined by a computer. The antenna is<br />

made of a quality, high impact plastic, and the<br />

connectors are standard Pl-259/S0-239,<br />

which should assure a tight fit and years of<br />

use.<br />

Remember, if you are thinking of this antenna,<br />

thai such quality construction doesn't<br />

come cheap. At $89.95, the Wilson 1000 is not<br />

inexpensive. However, given its construction<br />

and performance, it's a purchase worth considering.<br />

fJ)<br />

ANTENNA ANALYSIS<br />

n.e ne.. !.IN program -..ul anaIyno al~t any an\.t'nna<br />

mad~ of wi~ or tubinc. Compu\.t' ro.....ard pin, ~·iB ,<br />

beamwidth. o.idlobn, eu ......nl, impedance, SWR......r·<br />

fi.ld., and fa r-field. , in fl'ft .pace or o....r reali.tical1y·<br />

mod.l""MM. P1M ank'nna radiation pat \.t'm . On your<br />

JC'"l'phiCfJ """"n. !>I N can wmpu\.t' the inter""tion a mona:<br />

......ral n.arby Imlenn... Th. 5-114" !>I N di.k contain.<br />

over 100 file. , indudinjl" IIbrarie. of anlenna a nd plot<br />

fil••, a file editor, and nten. i"e drumentation. MN i.<br />

an . nhanced, ea.y·l.o·U"" veroion of MIN t N ~:C for lIlM ·<br />

PC. $75 ($liD CA & f" ....ijl"r\).<br />

YAGI OPTIMIZER<br />

The ~markabl" new YO proeram automatically adj ...<br />

Yqi .lement l.net,," and . pacinp to ma.imize ro an:l<br />

pin. optimize pal\.t'm. and minimiu SWR Radiation<br />

pat\.t'..... al band "",ntt'l' and~ a~ updato:

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