A good method to suspend a balun and the center of your antenna without placing undue stress on the BALUN or the binding posts.

Center Insulator with Suspension Eyebolt

     1.99  Order CIA   

Center Insulator and two end insulators  3.99
 Order CIAX3 

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 the attic of my garage.  One insulator at the center, and one each end.  It's great for other HF WINDOM and or dipole antenna.  Dielectric strength is better than the old ceramic insulators, but without susceptibility to cracking or breakage under impact or extreme temperature changes.

Package of 10,  Insulators $8.99, ANTINSLX10

Dipole and inverted-Vee antennas are commonly "balanced" at the feed points.  Coaxial feed lines are "unbalanced" by design personality (thus the name BALUN).  This BALANCED, to UNBALANCE marriage can only be performed by using a BALUN.  A BALUN should always be used when feeding wire antennas with coax to make certain characteristic antenna performance and optimum transfer of RF energy to the antenna complete.

When coax is used to feed antennas without the benefit of a BALUN, current flows on the shield of the coaxial feed line .  This coaxial shield current can produce  a "Hot HAM shack,"  This can result in nasty R.F. injury from the microphone to lips, hand key to fingers, etc., and is often more pronounced at certain frequencies.  Coax cable shield currents can also cause damage to your HAM gear.   TVI, RFI, telephone and even wild VSWR indications can result from these shield currents.  

In 85% of antenna projects that displayed these problems, when a BALUN is added to the coaxial line or near the antenna feed point, these problems were diminished or completely eliminated.

F=1-5/8"

T=1"

S=1-1/8"

C=1/4"

W=5/32"

EYE = 1/4"

Eyebolt with nut, Machine Thread Zinc Plated

Order EYEBOLTX3
3 for 99 cents

Our BUX Master-Match� 4:1 current Balun is ideal for matching windoms, web'd or folded dipoles, and antennas fed at a 250 ohm to 500 ohm impedance feed point with normal 50 or 75 ohm coax cable. In contrast to ordinary Baluns the BUX MasterMatch� 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, PolyCovered-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, PolyCovered-Ladder-Line will far outlast the normal open copper with plastic spacers. (Includes three FREE antenna insulators, shown elsewhere, this page).

Master-Match� 4:1 Features:
o 50 ohm, SO-239 unbalanced input
o Heavy duty Hardened Brass, Balanced output connectors
o 1.8 to 30 MHz
o Toroid CURRENT design
o Heavy Duty, Lightweight construction
o Sealed against moisture

At BUX COMM, *We don't cut corners! The components used in the manufacture of our BALUNs are from top quality components, beginning with the UV resistant enclosures, then the Silver Plated SO239 connectors with center insulator made of teflon�(E.I Dupont). The wire we wind the ferrite donut with, is heavy-duty, silver flashed wire, with teflon� insulation, which will handle RF voltages above 2500 volts, and temperatures above 400 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 electrical connections to the wire .
SPECIAL   BONUS !
Buy either our Master-Match� 4:1 BALUN or our Master-Match� 1:1   BALUN and receive "FREE," a Package of three TyNITE� Insulators, as shown above.   The BUX Master-Match� 4:1 & Master-Match� 1.1 High Performance ,  1.5  KW Balun (if SWR is less than 2:1)  *CW/SSB duty-cycles only.   SSB/CW Power @ 3.5 MHz* >1.5 kW if SWR is less than 3:1  *Not rated for AM, RTTY or other high duty-cycle digital modes.

BUX Master-Match� 1:1 current Balun is 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 or transmission Line.
Master-Match� 1:1 Features:
o 50 ohm, SO-239 unbalanced input
o Heavy duty Hardened Brass, Balanced output connectors
o 1.8 to 30 MHz
o Toroid CURRENT design
o Heavy Duty, Lightweight construction
o Sealed against moisture

At BUX COMM, *We don't cut corners! The components used in the manufacture of our BALUNs are from top quality components, beginning with the UV resistant enclosures, then the Silver Plated SO239 connectors with center insulator made of teflon�(E.I Dupont). The wire we wind the ferrite donut with, is heavy-duty, silver flashed wire, with teflon� insulation, which will handle RF voltages above 2500 volts, and temperatures above 400 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 electrical connections to the wire
SPECIAL  BONUS
Buy either our Master-Match� 4:1 BALUN or our Master-Match� 1:1   BALUN and receive "FREE," a Package of three TyNITE� Insulators, as shown above.   The BUX Master-Match� 4:1 & Master-Match� 1.1 High Performance ,  1.5  KW Balun (if SWR is less than 2:1)  *CW/SSB duty-cycles only.   SSB/CW Power @ 3.5 MHz* >1.5 kW if SWR is less than 3:1  *Not rated for AM, RTTY or other high duty-cycle digital modes.

Screw Driver Antenna Balun

50 ohm input, 12 ohms output,  1.8 MHz to 30 MHz

o SO-239 connectors, in & out,
o 50 ohm, SO-239 unbalanced input.
o 12 ohm, SO-239 output, SO-239 connector.
o 1.8 to 30 MHz
o Ferrite Broadband toroid design
o Heavy Duty, Lightweight construction
o  FREE  3ft RG8X coax with PL259, included
o Sealed against moisture

  Order SDAB  BALUN  $24.95  

 Keep your Mobile RF Power at your antenna. 

Our MoBALUN is also available with binding-post "terminals."
ORDER MOBALUN-T   $ 19.95

Teflon �� E I DuPont corp.
Amphenol �� TYCO Corp.

BUX ONION $19.95
"Decoupling 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 an UNbalanced to UNbalance (UN-UN) decoupling transformer designed to be used by the Apartment dweller or the RV ops.  It is also used 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).

BUX ONION  $19.95

This is our BUX COMM High-Performance "HAMMER."
We designed it to cope with a "wholesome" kilowatt... or two, or  three.   We decided that was NOT good enough, so we built it to endure harsh treatment.

STATS: Current Balun
10" x 4"  Wt. 1.5 LBs
4:1 Hi-Power, 160 thru 6 Meters
HEAVY DUTY TOROID MADE OF TYPE 43 FERRITE, FOR LOW PERMEABILITY
4:1 High Performance, Heavy Duty,
*3 KW Balun (if SWR is less than 2:1)  
*CW/SSB duty-cycles only.
 SSB/CW Power @ 3.5 MHz* >2 kW if SWR is less than 3:1, Not rated for RTTY & AM
Will not saturate at Amateur Radio Power Levels  Regular $64.97   
Now at BUX COMM $ 39.95
Order 3KBBB   

1:1 version High Performance, Heavy Duty,  (Current BALUN),
stock number 3KBBB11

With an increase in local noise sources and the increasing attractiveness of long wire and dipole antennas, coax cable has become the antenna feed line of choice for most radio users and operators. 

Given that the impedance of most commonly available coax is either 50 or 72 ohms and since many wire antennas present an impedance of 200 to 600 ohms or more at the feed point, direct connection of the coax to wire antennas hits us with a significant signal loss due to the antenna impedance mismatch. 

Having realized this set of circumstances in the receiver and SWL arena, we're introducing a new approach to defeat the noise and impedance mismatch problems in our receive antennas by designing this new RxBALUN�.

Our RxBALUN� bridges the impedance gap, and enables an unbalance to balanced match between the antenna and our receivers.  These features provide more signal transfer from the antenna to your receiver.  

Our RxBALUN will accommodate the SWL and QRP Operator.  In addition, this RxBALUN may be employed as an antenna balun for both transmit and receive between the antenna and low powered transceivers running up to 200 watts.  For input and output connectors, we use only the best Silver plated, Teflon�� insulated, SO239 connectors. Max Power 250 watts.

$14.97 RxBALUN     Teflon �� E I DuPont corp.

Should there arise a requirement to return your BUX BALUN for service, carefully wrap and package it.   We will re-use your carton to return the BUX BALUN to you.  Be sure to include your return address.  Include a full description of the problem, along with your name, address, phone number and/or e-mail address.  Repairs average approximately 3 to 4 days.

A professional meter for measuring VSWR and POWER for a wide frequency range:

 
The HP500 has a dual instrument window and positive press switches.  Technical Specifications:
* Frequency Range 3 - 200 MHz
* Impedance 50 or  75 ohms. Accuracy � 10%
* Three Levels for Power Measurement: 10 W,  100 W, and 1000 Watts
* Wide band cover for both SWR and Power 3-200MHz.
* Power up to 2Kw PEP plus 50-75 ohm switching.

ZETAGI  Order Cat #  HP-500  $ 79.95                          

VHF and UHF 'Cross-Needle' High
Performance, SWR & POWER Meter.
For the serious VHF/UHF operator, here is a
140 to 160 MHz & 440 to 480 MHz,  VSWR and POWER meter with;
10 - 100 - 1000 watt scales.

SWR & WATT METER 100 watt & 10 watt level switch This is a handy, compact meter for designed for the amateur radio operator for checking transmitter operation, 1.7 to 50 MHz.  May also be used as a RF field strength meter and to check QRP power.

 DUAL BAND, HIGH GAIN, BASE STATION ANTENNA, UVS-200
  6.7 db @ 2 meters, 8.2db 70cm. High Performance, High Gain, Dual Band, Base Station Antenna 5/8 wave, vertical stacked collinear design 2-5/8 elements on 2mt., 4-5/8 elements on 70cm.   6.7 db @ 2 meters and 8.2 db 70cm. Superior wideband performance Heavy duty fiberglass radome Durable, waterproof joints Mounting Hardware included Accepts standard PL-259 connector
200 Watt power rating
Radiating element, 100 inches.
DC ground, enclosed elements reduces terrestrial noise. Reg $109.95 BUX COMM price,  $57.97

 $47.97 UH-2401

All mounting hardware and assembly instructions are included.  Also includes cutting chart for exact frequency measurements.

Solid Elements
Metal GP6M $49.95 

Fiber Glass
FGP6M $49.95

CAUTION:  If required, cut off the bottom of the whip to ensure it does not extend down into the coil of the antenna.  Failure to observe this precaution will cause heat damage and void any warranty.  At resonance, VSWR should be 1.5:1 or less when properly matched. When tuning is complete, tighten set screws securely.   NOTE: Bandwidth and VSWR will vary due to   mounting location.  If your installation has a VSWR over 1.5:1 at resonance, or you need to operate over a greater bandwidth a tuner may be required.