Communications, Electronic, Audio Connectors, RF Connectors, Parts, and Components at discount prices.

A good method to suspend a balun and the center of your antenna without placing undue stress on the BALUN or the binding posts.
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 support structure.	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 3, $2.99 Antenna Insulators 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.
*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 Silver Plate SO239 connectors and center insulator is 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 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 electrical connections to the wire .	4:1 1.5 Kw Balun, BUX BALUN 41HD *Toroid design, wound with teflon covered, silver plated wire. Heavy-Duty, construction.** o 50 ohm, SO-239 unbalanced input o Heavy duty Hardened Brass, Balanced output connectors 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.	41HD $19.95
1:1, 1.5kw Balun, BUX BALUN 11HD $19.95 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	*1:1, 1.5kw* Balun, BUX BALUN 11HD** Toroid design, wound with teflon covered, silver plated wire.* Heavy-Duty, construction.		11HD $19.95
BUX BALUNs ⁭ should be installed at the antenna feed point, or where the coax or feed-line attaches to the above ground antenna. BUX BALUNs are used to connect balanced antennas to unbalanced transmission lines, such as coax cable. Their primary purpose is to prevent antenna (RF) currents from flowing down the outside of the cable. Another function of the BUX BALUN41 is to match the impedance of an unbalanced coax to the balanced feed point of a balanced input antenna(s). BUX BALUNS may also be used as �line isolators� anywhere along the cable to prevent the destructive influence of induced RF currents (VSWR). BUX 1:1 BALUNs are current BALUNs, and are designed to operate from 1.8 to 30 MHz. They consist of several type 43 material. BUX BALUN11 operate from 160 to 10mtr MHz and allow transfer of RF power to the rated capacity of the BALUN. BUX 4:1 BALUNs are voltage BALUNs. They consist of a large "Type 43" material. *BUX BALUN41* operate from 1.8 to 30 MHz MHz and allow use of RF power to the rated capacity of the BALUN. 4:1 High Performance, Heavy Duty, 2 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. Double-co-efficient coupled design. Exceptional High output. Large toroid ferrite cores. High winding reactance with only a L-C compensation. Teflon insulated, large gauge, high temperature, wire. Compensation for wide bandwidth Rated above the legal power limit. Stainless-steel eyebolts. Input Connector SO-239 Output Connector Hard-Drawn, tempered Brass Binding Posts. Bandwidth 160 - >10 m. Power Loss, dB less than 1 dB.
When you hear those strong HF mobile signals, here's one reason they stand out from the rest. By installing the BUX MoBalun near the input to your antenna, you deliver more RF energy to the antenna. At the same time, the BUX MoBalun prevents RF from traveling back along the shield (high SWR) of your coax. High power rating, Low-permeability toroid, with Internal composition fiber-glass to prevent vibration during mobile operation. For input and output connectors, we use only the best Silver plated, Teflon�� insulated, SO239 connectors. 500 watts. Our MoBALUN is also ideal for marine antenna installations. $19.95 MOBALUN Teflon �� E I DuPont 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		BUX ONION $19.95
Important Information; 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 600 ohms at the end of your 600-ohm line. That only happens if you have a 600-ohm antenna hooked onto it. With such a variation in impedance at the trans�mitter 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 imped�ance 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 BOSS BALUN 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.
Your BUX BALUN is warranted against defects in components or construction for a period of one year from date of purchase. Our warranty does not cover damage due to misuse, abuse, or nonessential operation outside the specifications of the BUX BALUN. This warranty applies only to the original purchaser. A copy of the receipt showing the purchaser�s name and the date of purchase must accompany BALUN's returned for warranty service. All returns must be shipped prepaid. 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.
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-6 $69.95
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.			SWR-3, $19.95

*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			$57.97 UVS-200
VH-2201 VHF BASE STATION Antenna. Frequency Range: 136-174 MHz Gain: 4.5dB VSWR less than 1.5:1 Power Rating: 200 watts Impedance: 50 Ohms Stainless Steel Radials SO-239 Input connector Radiating element Length 6 feet. Built to Commercial standards for base station installations, and rugged, mountain-top repeater applications. Mounting hardware and stainless-steel radials included. Ship wt, 5 Lb			$47.97 VH-2201
UH-2401 UHF BASE STATION Antenna Frequency Range: 430-490 MHz Gain: 6.5dB Power Rating: 200 watts Impedance: 50 Ohms Stainless Steel Radials SO-239 Input connector Radiating element length 5 feet. Built to Commercial standards for base station installations, and rugged, mountain-top repeater applications. Mounting hardware and stainless-steel radials included. Ship wt, 5 Lb			$47.97 UH-2401
"Vertical" Six Meter Ground Plane 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

BUX stix HF antennas (ABOVE) for Mobile and Base Applications: Power Rated at 250 Watts P E P; Typical 2:1.VSWR band width is: � 75 meter: 40 KHz. 40 Meter: 60 KHz. � 20 Meter: 150 KHz. 17 Meter: 175 KHz. � 15 Meter: 200 KHz. 12 Meter: 300 KHz. � 10 Meter: 500 KHz. 6 Meter: 1000 Khz. TUNING INSTRUCTIONS: Insert the whip into lower section ferrule about four inches (as shown at right) and tighten set screw. Assemble with fiberglass lower section (as shown at left). Install a VSWR meter at the transceiver and apply 10 to 25 watts of power. Adjust the VSWR meter and output frequency for lowest VSWR reading, indicating resonance. If resonant frequency is too high, loosen set screw and extend top whip until desired resonant frequency is found. If resonant frequency is too low, loosen set screw and adjust whip further into lower section. For best results, adjustments should be made in small increments. 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.