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Building the G5RV antenna is easier to assemble than you might think. It uses a "flat-top" section of #14 copper wire with 41 strands of wire, covered with Poly-Vinyl insulation. The PVC insulation gives added strength to the stranded wire, and does not attenuate the incoming or outgoing signals.
A matching section made from 32 feet of 450 ohm ladder/window line. This thirty-two foot section of 450 ohm window line performs the task of matching, and ghost balun between the coax and the feed-point of the antenna's flat-top section (See Figure 1, below).
At the station end of the 450 ohm window line, we attach our 50 ohm, coaxial cable with 97% shielding for the final feed-line run into the ham shack.
Our 450 Ohm ladder line is comprised of poly-coated open wire, number 18, solid "copper-clad steel" conductors. It is much easier to handle than open wire feeder yet retains its ultra low loss feature. This feed line will handle a kilowatt with ease
In our case; The 450 ohm ladder/window, is made of Poly Vinyl copper-clad steel, covered with black, UV resistant PVC. For the transition from the 450 ohm window line to the 50 ohm coax, we use an SO-239 so we can couple the coax to the window line using a standard PL-259. Once the connection is made, we cover the coupling area, making sure we have a good water-tight connection and good support for the coaxial section. (See Figure 1) .
Figure 1; The G5RV is often used with an antenna tuner to operate as a Multi-Band HF antenna
The complete G5RV antenna as shown in figure 1. All connections are made and insulators installed. Just as it appears here, just hang it and connect the coax. Includes BUX 1:1 BALUN. Available from BUX COMM 39.95.
Available from BUX COMM: $39.95. Catalog number G5RVPNP
ANTENNA INSULATORS
Center Insulator with Suspension Eyebolt
Stainless eyebolt is inserted into Tenyte "Center Insulator" The "Center Insulator" is used to suspend the center of a Dipole, Windom, or other wire type antenna from tower, tree, or other support structure.
1.99 Order CIA
Center Insulator and two end insulators > 3.99 Order CIAX3
Weatherproof, (TENYTE) insulators. Perfect for your DIPOLE or Windom antenna.
ANTINSL3
For the apartment dweller, you can now hang the 20 meter doublet
in the attic. I've QSO'd with stations all over the world with the
33 ft dipole in my garage attic. One insulator at the center, and one each end.
It's great for other HF WINDOM and single-band dipole antennas. Dielectric strength is comparable to the old ceramic insulators, without susceptibility to cracking or breakage under impact or extreme temperature changes.
Package of 3, $2.99Package of 10, TeNyte Insulators $8.99, ANTINSLX10
ANT202 is a Base Station, (dipole) antenna for (HF) 20, 17, 15, 12, and 10 meters. We've also used it on 2 meters and 220 MHz with amazing success.
INCLUDES 2
end insulators.
A202 $27.95
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For improved HF performance, we recommend our 101 BALUN (reg $ 19.95)
A202 & BALUN B101
SAVE $8.00, Order AB102
Both for $ 39.95
AB102
This 450 Ohm ladder line comprises poly-coated open wire. It is much easier to handle than open wire feeder yet retains its ultra low loss feature. This feed-line will handle 1 kilowatt with ease and is far superior to the 300 Ohm ribbon type.
100 feet $ 19.95
Cat # 450LADR
50 feet $ 11.95
Cat # 450LADR50100 feet of RG-8U Low-Loss, Base-Station Coaxial Cable. It's low loss design and 97% or better shield makes it ideal for this application. GOLD PL-259 coax connectors are installed on each end
50 feet of RG-8U with 97% shielding, Low-Loss, Base-Station Coaxial Cable.
ORDER: RG8PL1L
$39.97
100 feet of RG-8U, with 97% shielding, Low-Loss Base-Station Coaxial Cable.
ORDER: RG8PL1C
$59.97
Number 14 TW/AWG with 41 strands of tinned copper wire, Poly-Vinyl insulation covered flexible, but strong. The most preferred wire type when building Dipole's, Windom's, and other flat-top HF antennas. The PVC insulation gives added strength to the 41 strands of tinned, copper wire. Specification: Finely stranded tinned copper conductor (Type III), 105ºC 600 volt copper. 1.5lb/100 Color coded PVC insulation, Temperature range -20°C to 105ºC, Voltage rating 600 volts, Reistant to Acid, Alkilis, Abrasion, Flame, Gasoline, Oil, Ozone, Moisture, Fungus.
100 ft, $19.95 10016
300 ft, $57.95 30016
At BUX COMM, *We don't cut corners!
The components used in the manufacture of our BALUNs are of top quality components, beginning with the Silver Plate SO239 connectors and center insulator is made of teflon™(E.I Dupont). The wire we use to wind the ferrite donut is heavy-duty, silver flashed wire, with teflon™ insulation that will handle RF voltages above 5000 volts, and temperatures above 2000 degrees. The binding posts are heavy-duty, tempered brass, with end holes and side-thru holes to accommodate either type loop-thru connection. A double-shoulder brass capture nut is used to add a secure bite and improve antenna wire electrical connections. With our BUX UN UN (ONION), the coax is Belden™ and the PL259 connectors are Amphenol™.
4:1 1.5 Kw Balun, BUX BALUN 41HD $19.95
Toroid design, wound with teflon covered, silver plated wire.* Heavy-Duty, construction.o 50 ohm, SO-239 unbalanced input
o Balanced output
o 1.8 to 50 MHz
o Toroid (Voltage) design
o Heavy Duty, Lightweight construction
o Sealed against moisture
____________________________________________________
SPECIAL This Month... !! BONUS SALE ! Buy either our 4:1 HD or our 1:1 HD ↓ BALUN and receive "FREE," a Package of three Insulators, as shown above.
____________________________________________________1:1, 1.5kw Balun, BUX BALUN 11HD $19.95
Toroid design, wound with teflon covered, silver plated wire.* Heavy-Duty, construction.o 50 ohm, SO-239 unbalanced input
o Balanced output
o 1.8 to 50 MHz
o Toroid (Current) design
o Heavy Duty, Lightweight construction
o Sealed against moisture
BUX ONION $19.95
BUX
ONION "Decoupling (isolation)Transformer"
BUX UN UN De-Coupling transformer, has SO-239 (female)input
connector and output connector is 1 ft Mini 8 cable with PL-259 (male).
BUX ONION is and UNbalanced to UNbalance (UN-UN) decoupling
transformer designed to be used specifically with
the DBLSPCL antenna.
High RF currents traveling along the coax feed-line shield can cause high VSWR.
This decoupling transformer prevents RF currents from traveling down the outer
shield of the coax. The input connector is an SO239 (female) and the output
connector is a PL259 (male), which mates the connector of the "DBLSPCL"
RV/Apartment dweller antenna shown above.
BUX ONION $19.95
Important Notice; WHY USE A 4:1 BALUN
Krusty Olde Kurt is now going to repeat himself. Why? Because the same question keeps coming up over and over. And he wants everyone to get it right.
"I'm feeding my dipole with 600-ohm line. At the station end I need a balun to convert to 50-ohm coax. I need a 12:1 balun, right?" Wrong! A 4:1 balun would be better.
Why is that? If your dipole is up, let's say, 35 feet then on 80 meters it will probably have a resistance at resonance of about 40 ohms. The actual resistance depends on the height above ground in wavelengths.
If the dipole is 40 Ohms then what do you see at the transmitter end of your 600 ohm line? If the line is a half-wave long (120 ft on 80 Meters) you'll see 40 ohms. Remember, a half-wave line repeats what it sees at the other end. But if it is a quarter-wave long you'll see 8500 Ohms! At other line lengths you'll see impedances somewhere between these two extremes.
So you are not going to see 450 ohms at the end of your 450-ohm line. That only happens if you have a 500-ohm antenna hooked onto it. With such a variation in impedance at the transmitter end of the line there is no one balun transformer that will match it. Most of the time the impedance will be above the 50 Ohms of your coax so a high impedance balun would be desirable. Unfortunately high impedance baluns don't work well when not matched.
Experience has shown that 4:1 baluns work best in this service. They are more rugged and will take bad mismatches especially if they are wound on an iron powder core. So stop searching for that 12:1 balun. Use a 4:l BALUN and your system will work great.
You can read Kurt N. Sterba “AERIALS” column in World Radio Magazine.
←BUX
Master-Match™ Balun 1:1
$24.95 MM11
BUX
Master-Match™1:1 Baluns are ideal for Dipoles, Slopers, Inverted-Vees and
center feed-point, RV antennas. They are also employed at the driven element of
of many HF beams and Quads, and where feedpoint impedance is at, or near 50
ohms. By equalizing the currents in the antenna feeders, the Dipole pattern
improves and prevents feedline (re)-radiation by preventing antenna currents
flowing along the outer braid of the coax transmission line.
Includes three FREE antenna insulators (shown elsewhere, this page).
←BUX
Master-Match™ Balun 4:1
$24.95 MM41
Our BUX Master-Match™4:1 Balun is ideal for matching windoms, web'd or folded dipoles, and antennas fed at a 250 ohm to 500 ohm impedance feedpoint with normal 50 or 75 ohm coax cable. In contrast to ordinary Baluns the BUX Master-Match™4:1 Balun support balanced currents in each leg of the antenna and prevents feedline (re)-radiation. As mentioned in our windom articles, feedlines and 450-ohm, brown, poly-covered ladder-line are easy to handle, and more-over they present another efficient means to feed multi-band antennas. We strongly suggest the use of our PolyCoat-Ladder-Line as it is made of strong, copper-clad, steel conductors. This light but durable, PolyCoat-Ladder-Line will far outlast the normal open copper with plastic spacers. (Includes three FREE antenna insulators, shown elsewhere, this page).
The Got’cha is; These open type feedlines can bring high RF voltages into the shack. By using BUX Master-Match™4:1 Balun near the point where the transmission line enters the HAM shack, we impede that lip-bitting voltage and prevent excessive RF from getting into the PC, the transceiver, the telephone, the television (the XYL is watching) and heaven-forbid, the computer on her automatic washer.
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BHF75M 75 METER 3/8" X 24 THREAD 8 feet long $16.95
BHF40M 40 METER 3/8" X 24 THREAD 8 feet long $16.95
BHF20M 20 METER 3/8" X 24 THREAD 8 feet long $16.95
BHF17M 17 METER 3/8" X 24 THREAD 8 feet long $16.95
BHF15M 15 METER 3/8" X 24 THREAD 8 feet long $16.95
BHF10M 10 METER 3/8" X 24 THREAD 8 feet long $16.95
BHF6M 6 METER 3/8" X 24 THREAD 5 feet long $16.95
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By combining a pair (two) of the single band HF Mobile (loaded) tuneable-tip antennas above, you can have an ideal, single element, horizontal dipole (beam). This type antenna opens the world of HF communications for the apartment dweller, RV HAM, field-day operating, and a variety of other uses and applications. The packages described below include two antenna, the Double Antenna-Bracket (DBLBRKT), and mounting hardware
$
39.97
DBLSPCL
(without BALUN) With BALUN,
see "DBLCOMBO", below.
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By combining a pair (two) of the single band HF Mobile (loaded) tuneable-tip
antennas above, you can have an ideal, single element, horizontal dipole
(beam). This type antenna opens the world of HF communications for the
apartment dweller, RV HAM, field-day operating, and a variety of other
uses and applications. The package described below includes two antenna,
the Double-Bracket (DBLBRKT), mounting hardware, and BUX BALUN (UNUN).
$AVE $$$$$, ADD the BUX UNUN , shown below,
BOTH, DPLSPCL & BUXUNUN, for only
$ 54.97,
ORDER, DBLCOMBO
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We accept:
Order Line ONLY, Mon > Fri 10 AM to 4 PM, 434 534 8873 or FAX your order, 24/7 to FAX 434 525 7818
Order Line, Mon > Fri 10 AM to 4 PM, 434 534 8873 or FAX your order, 24/7 to FAX 434 525 7818
All text and graphics on these pages are ©®™ of G. E. Rogers Sr and BUX COMM Corp 1986 - 2005
CLICK HERE to download RASCAL GLX to REPEATER interface Instructions via EchoLink
Shipping/Handling & warranty Return policy
* "RASCAL"
is Registered
trademark ®™ of BUX Communications Corp (BUX CommCo ™)
*(RASCAL™®
"Radio
And
Sound
Card
Adapter
Link")
Reinforced,
Double Bracket used with our "DBLSPCL" antennas shown elsewhere on this
page.
After
a few years, the hardened, nylon shoulder washers become weather-brittle and
break. Keep a few spares in the Ham Shack: 
