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

$10 And Under Items

Store/$10 And Under Items
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2678488938 - 5:1 Baluns/Ununs
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
817258180 - 5:1 Baluns/Ununs
Dog Bone Antenna Insulators (10 pack)
Dog Bone Antenna Insulators (10 pack)
SKU DI-10
$27.50
817258180 - 5:1 Baluns/Ununs
Dog Bone Antenna Insulators (Pair)
Dog Bone Antenna Insulators (Pair)
SKU DI-2
$6.50
3917461763 - 5:1 Baluns/Ununs
Double Female Barrel Connector - F Connector
Double Female Barrel Connector - F Connector
SKU DFBC-F
$0.95
581480850 - 5:1 Baluns/Ununs
Double Female Barrel Connector - UHF Connector
Double Female Barrel Connector - UHF Connector
SKU DFBC
$3.95
3465681198 - 5:1 Baluns/Ununs
End Fed Feed Line Choke for Non-Resonant and End Fed Half Wave Antennas
End Fed Feed Line Choke for Non-Resonant and End Fed Half Wave Antennas
SKU EFFLC-240
$10.00
977476513 - 5:1 Baluns/Ununs
F240-31, ID=1.4", AC/DC/Coax Noise Filter, RFI Range 1-300 MHz, AKA FT240-31
F240-31, ID=1.4", AC/DC/Coax Noise Filter, RFI Range 1-300 MHz, AKA FT240-31
SKU F240-31-1
$9.99
581480185 - 5:1 Baluns/Ununs
FB102-31 - 1/2" ID, RFI Range 1-300 MHz
FB102-31 - 1/2" ID, RFI Range 1-300 MHz
SKU FB102-31-1
$3.30
581480171 - 5:1 Baluns/Ununs
FB56-31 - 1/4" ID, RFI Range 1-300 MHz
FB56-31 - 1/4" ID, RFI Range 1-300 MHz
SKU FB56-31-1
$1.65
581480178 - 5:1 Baluns/Ununs
FB68-31 - 3/8" ID, RFI Range 1-300 MHz, RG-6 Size Cable
FB68-31 - 3/8" ID, RFI Range 1-300 MHz, RG-6 Size Cable
SKU FB68-31
$1.49
581480178 - 5:1 Baluns/Ununs
FB68-43 - .375" ID, RFI Range RFI Freq: 25-250 MHz, Unun/Balun, RF Range: 1-200 MHz, RG-6 Cable
FB68-43 - .375" ID, RFI Range RFI Freq: 25-250 MHz, Unun/Balun, RF Range: 1-200 MHz, RG-6 Cable
SKU FB68-43-1
$0.89
On Sale
581480118 - 5:1 Baluns/Ununs
FSB31-1/4, ID=1/4"/6.3mm, RFI Range 1-300 MHz
FSB31-1/4, ID=1/4"/6.3mm, RFI Range 1-300 MHz
SKU FSB31-1/4-1
List price $3.95
Save 25%
$2.95
On Sale
581480118 - 5:1 Baluns/Ununs
FSB31-3/16, ID=.195"/5.1mm, RG58, RG142, RG400, RFI Range 1-300 MHz
FSB31-3/16, ID=.195"/5.1mm, RG58, RG142, RG400, RFI Range 1-300 MHz
SKU FSB31-3/16
List price $2.49
Save 22%
$1.95
581480124 - 5:1 Baluns/Ununs
FSB31-3/4, ID=3/4", RFI Range 1-300 MHz
FSB31-3/4, ID=3/4", RFI Range 1-300 MHz
SKU FSB31-3/4-1
$6.95
581480151 - 5:1 Baluns/Ununs
FSB61-1/2, ID=1/2", RFI Range 200-2000 MHz
FSB61-1/2, ID=1/2", RFI Range 200-2000 MHz
SKU FSB61-1/2-1
$5.95
On Sale
581480157 - 5:1 Baluns/Ununs
FSB75-1/4, ID=1/4", RFI Range 150Khz-10 MHz
FSB75-1/4, ID=1/4", RFI Range 150Khz-10 MHz
SKU FSB75-1/4-1
List price $19.95
Save 50%
$9.95
581480157 - 5:1 Baluns/Ununs
FSB75-1/4, ID=1/4", RFI Range 150Khz-10 MHz, Bulk Pack of 10
FSB75-1/4, ID=1/4", RFI Range 150Khz-10 MHz, Bulk Pack of 10
SKU FSB75-1/4-10
$89.95
581498300 - 5:1 Baluns/Ununs
FT114-31 Ferrite Ring, ID=.748", RFI Range 1-300 MHz, Mix 31, POTA SOTA 1:1 Balun, Coax Choke
FT114-31 Ferrite Ring, ID=.748", RFI Range 1-300 MHz, Mix 31, POTA SOTA 1:1 Balun, Coax Choke
SKU F114-31
$1.95
3215425210 - 5:1 Baluns/Ununs
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
982895404 - 5:1 Baluns/Ununs
N Connector Kit (female chassis connector)
N Connector Kit (female chassis connector)
SKU UG-58-1
$7.49
581480975 - 5:1 Baluns/Ununs
SO-239 Kit (female chassis connector + hardware)
SO-239 Kit (female chassis connector + hardware)
SKU SO-239 Kit-1/2
$3.95
3215425215 - 5:1 Baluns/Ununs
Side Eyebolt Kit - 1/4-20 Stainless Steel
Side Eyebolt Kit - 1/4-20 Stainless Steel
SKU SEK-1/4-1
$5.95
3214887724 - 5:1 Baluns/Ununs
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
811134955 - 5:1 Baluns/Ununs
Simple Dipole Feed Line Choke - RG8X - RFI Range: 1-100 MHz
Simple Dipole Feed Line Choke - RG8X - RFI Range: 1-100 MHz
SKU SDFLC
$10.00
3773044264 - 5:1 Baluns/Ununs
Switchcraft 12B Stereo 1/4 Jack - 3 Conductor, panel mount, Vintage Mic Chassis Jack
Switchcraft 12B Stereo 1/4 Jack - 3 Conductor, panel mount, Vintage Mic Chassis Jack
SKU SW12B-1
$1.95
3200211724 - 5:1 Baluns/Ununs
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
2680932779 - 5:1 Baluns/Ununs
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
1062199266 - 5:1 Baluns/Ununs
UHF PL259 and RG-8X Coax Adapter
UHF PL259 and RG-8X Coax Adapter
SKU PL259-8X
$4.95
937984764 - 5:1 Baluns/Ununs
UHF PL259 to BNC Female Jack Adapter
UHF PL259 to BNC Female Jack Adapter
SKU UHFMBNCF
$3.95
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