[ETS/PARC List] Fw: G5RV dipole.

[Don WILSON]

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Subject: [ETS/PARC List] G5RV dipole.

Built this G5RV last year.  Covers all bands, 160-10 Meters with antenna
tuner. 102 feet long, shorter than 80 Meter dipole. Use as inverted vee
or sloper to be more compact. Use on 160 Meters as Marconi with tuner
and ground. Handles full legal limit power. Add coax feedline -- get on
the air! The G5RV antenna is a multi-band center-fed dipole antenna
capable of 1500 Watts. It was originally designed to operate as a 3/2
wavelength center fed antenna for 14 MHz, but amateurs soon discovered
it would offer reasonable performance on many other bands. The MFJ-1778
(G5RV) consists of a 102 foot flat top fed with a 32.5 foot 450 ohm
matching section ending in an SO-239 coaxial connector. The 450 ohm
balanced transmission line serves as a 1:1 transmission line transformer
on 14 MHz. The SWR is approximately 2:1 at 14 MHz. The same balanced
line section acts like a transmission line impedance matching section on
the other HF bands. This antenna generally requires the use of a
suitable matching network (antenna tuner) since the SWR of the G5RV is
almost certainly not 1:1 on any band. The use of a tuner will guarantee
maximum performance from solid state exciters. The G5RV is a balanced
antenna that is fed by an unbalanced coaxial line. This feed system
causes unwanted parallel RF currents to appear on the shield of the
coaxial feedline. A choke type balun should be used with this antenna to
eliminate or reduce the undesirable parallel feed line.

This antenna really works gang!

  First 30 dollars to ETSNJ members..

73, Ron  BZS