5:1 Baluns/Ununs

5:1 CUBE™ Unun – Model CU-5-1500 (50:250 Ohm, 1.8-61 MHz, 1.5KW PEP)

Application. For traveling wave, end fed or portable 20-31 foot vertical antennas the 5:1 unun makes a good transformer for converting 50 ohm coax to a 250 ohm feed point. If you use the antenna on multiple bands, the feed point impedance may not always be 250 ohms and use of the unun at high (>350 ohms) or low (<100 ohms) will require reduced power input or the unun may have its power ratings exceeded and damage to the unun may occur. The (5:1 conversion ratio will change for loads other than 250 ohms unbalanced.

Typical application:

CU 5 1500 antenna - 5:1 Baluns/Ununs

Also available as a balanced output – CB-5-1500

Antenna Hardware, Coax, Wire, Connectors
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1-3/4" Nylon Pulley and 1/4" Spring Hook Set for Wire Antenna & Paracord Installation
1-3/4" Nylon Pulley and 1/4" Spring Hook Set for Wire Antenna & Paracord Installation
SKU Pulley-1.75-1
$4.95
5-Pack UHF Female Jack SO-239 Bulkhead Panel Chassis Mount Connector
5-Pack UHF Female Jack SO-239 Bulkhead Panel Chassis Mount Connector
SKU SO239-5GP
$14.95
Antenna Wire #14 Stranded PVC Black wire - price per foot
Antenna Wire #14 Stranded PVC Black wire - price per foot
SKU AWB-14-1
$0.30
Antenna Wire #14 Stranded PVC Black/Gray wire - 500 Ft Roll
Antenna Wire #14 Stranded PVC Black/Gray wire - 500 Ft Roll
SKU AWB-14-500
$119.95
Automotive Battery Charger RFI Kit - - 1-300 MHz RFI Suppression
Automotive Battery Charger RFI Kit - - 1-300 MHz RFI Suppression
SKU RFI-CHARGER
$39.95
BNC Male to F Female Adapter
BNC Male to F Female Adapter
SKU BNCMF
$2.95
Bullet Antenna End Fed Antenna Counterpoise Kit (41/71/92/111/155 Ft. Antenna Lengths)
Bullet Antenna End Fed Antenna Counterpoise Kit (41/71/92/111/155 Ft. Antenna Lengths)
SKU BULLET-CPK-41-20
$14.95
Dipole/OCF/ZS6 Antenna Wire Kits (160-6 meters)
Dipole/OCF/ZS6 Antenna Wire Kits (160-6 meters)
SKU DWK-6
$22.95
Dog Bone Antenna Insulators (10 pack)
Dog Bone Antenna Insulators (10 pack)
SKU DI-10
$27.50
Dog Bone Antenna Insulators (Pair)
Dog Bone Antenna Insulators (Pair)
SKU DI-2
$6.50
Double Female Barrel Connector - F Connector
Double Female Barrel Connector - F Connector
SKU DFBC-F
$0.95
Double Female Barrel Connector - UHF Connector
Double Female Barrel Connector - UHF Connector
SKU DFBC
$3.95
Double Male Barrel Connector
Double Male Barrel Connector
SKU DMBC
$7.95
Enclosure Box - 4" x 4" x 4"
Enclosure Box - 4" x 4" x 4"
SKU CB-Box-2
$19.95
Enclosure Box - 4.375" x 4.375" x 2.375"
Enclosure Box - 4.375" x 4.375" x 2.375"
SKU CB-Box-1
$14.95
Enclosure Box - 6" x 6" x 4"
Enclosure Box - 6" x 6" x 4"
SKU CB-Box-3
$27.95
End Fed OCF Antenna Wire Kits - 2006, 4006, 8006
End Fed OCF Antenna Wire Kits - 2006, 4006, 8006
SKU BULLET-2006WK
$29.95
New
FORK SOLDER LUG - 14-16AWG - 1/4 SPACING - 10 PIECES,
FORK SOLDER LUG - 14-16AWG - 1/4 SPACING - 10 PIECES,
Ground Connector
SKU FSL25-10
$4.95
New
FORK SOLDER LUG - 14-16AWG - 1/4 SPACING - 100 PIECES,
FORK SOLDER LUG - 14-16AWG - 1/4 SPACING - 100 PIECES,
Ground Connector
SKU FSL25-100
$29.95
HF Loop Antenna Wire Kits (160-10 meters)
HF Loop Antenna Wire Kits (160-10 meters)
SKU LWK-40
$54.95
Halyard Hoist Eyebolt Kit - 1/4-20 Stainless Steel
Halyard Hoist Eyebolt Kit - 1/4-20 Stainless Steel
SKU TEK-1/4-1
$4.95
Ladder Line Dipole/ZS6BKW/G5RV Center Insulator
Ladder Line Dipole/ZS6BKW/G5RV Center Insulator
SKU LLDCI
$14.95
Paracord - Black - 100 Feet - great for antenna supports!
Paracord - Black - 100 Feet - great for antenna supports!
SKU Paracord-1/8-100
$14.99
Plastic Box for Projects - 3.12 x 2.13 x 1.58 with flange
Plastic Box for Projects - 3.12 x 2.13 x 1.58 with flange
SKU PB-1
$5.95
Preassembled Balun & Unun Boxes, Stainless Hardware - just add your ferrite choke or transformer
Preassembled Balun & Unun Boxes, Stainless Hardware - just add your ferrite choke or transformer
SKU CU-BOX-1-SO
$49.95
New
RG-400 Coax Jumper Cable with PL-259's on each end - 3 feet, Double Shield, High Power
RG-400 Coax Jumper Cable with PL-259's on each end - 3 feet, Double Shield, High Power
SKU RG-400-3
$19.95
New
RG-400 Coax Jumper Cable with PL-259's on each end - 6 inch pigtail, Double Shield, High Power
RG-400 Coax Jumper Cable with PL-259's on each end - 6 inch pigtail, Double Shield, High Power
SKU RG-400-6IN
List price $19.95

Save 40%
$11.95
On Sale
RG-8X Coax Jumper Cable with PL-259's on each end - 3 feet
RG-8X Coax Jumper Cable with PL-259's on each end - 3 feet
SKU RG-8X-3
List price $19.95

Save 25%
$14.95
On Sale
RG-8X Coax Jumper Cable with PL-259's on each end - 6 feet
RG-8X Coax Jumper Cable with PL-259's on each end - 6 feet
SKU RG-8X-6
List price $19.95

Save 10%
$17.95
RG-8X Coax cable with PL-259's on each end - 100 feet
RG-8X Coax cable with PL-259's on each end - 100 feet
SKU RG-8X-100
$89.95
New
SOLDER LUG - 14-16AWG - 1/4 SPACING - 100 PIECES, CRIMPABLE
SOLDER LUG - 14-16AWG - 1/4 SPACING - 100 PIECES, CRIMPABLE
Ground Connector
SKU SL25-100
$29.95
Side Eyebolt Kit - 1/4-20 Stainless Steel
Side Eyebolt Kit - 1/4-20 Stainless Steel
SKU SEK-1/4-1
$5.95
Side or Top Stud Kit - 1/4-20 Stainless Steel
Side or Top Stud Kit - 1/4-20 Stainless Steel
SKU SSK-1/4-1
$3.95
New
Solder Lug, #6 hole, 100 pieces
Solder Lug, #6 hole, 100 pieces
Ground Connector
SKU SL06-100
$19.95
UHF Female to BNC Male - PL-259 to BNC Adapter - Elecraft
UHF Female to BNC Male - PL-259 to BNC Adapter - Elecraft
SKU UHFFBNCM
$3.95
UHF PL-259 PL259 Male Plug to N Female Jack Straight RF Connector Adapter
UHF PL-259 PL259 Male Plug to N Female Jack Straight RF Connector Adapter
SKU UHFMTONF
$5.95
UHF PL259 and RG-8X Coax Adapter
UHF PL259 and RG-8X Coax Adapter
SKU PL259-8X
$4.95
UHF PL259 to BNC Female Jack Adapter
UHF PL259 to BNC Female Jack Adapter
SKU UHFMBNCF
$3.95
UHF PL259 to Balanced Output Adapter (BANANA)
UHF PL259 to Balanced Output Adapter (BANANA)
SKU UHFMTOBANANA
$12.95
UHF T - Triple Female Adapter
UHF T - Triple Female Adapter
SKU UHFTF
$6.95
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