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:
Also available as a balanced output – CB-5-1500
FSB Mix 61 - RFI Range: 200-2000 MHz
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Ferrite Mini Snap On Combo Pack, Mix 61, RFI Range 200-2000 MHz - 6 filters
Ferrite Mini Snap On Combo Pack, Mix 61, RFI Range 200-2000 MHz - 6 filters
SKU FMSCP-61-6
List price
$55.00
Save 9%
$49.95
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
FSB61-1/2, ID=1/2", RFI Range 200-2000 MHz, Bulk Pack of 10
FSB61-1/2, ID=1/2", RFI Range 200-2000 MHz, Bulk Pack of 10
SKU FSB61-1/2-10
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$59.50
Save 8%
$54.95
FSB61-1/4, ID=1/4", RFI Range 200-2000 MHz
FSB61-1/4, ID=1/4", RFI Range 200-2000 MHz
SKU FSB61-1/4-1
$3.95
FSB61-3/4, ID=3/4", RFI Range 200-2000 MHz
FSB61-3/4, ID=3/4", RFI Range 200-2000 MHz
SKU FSB61-3/4-1
$14.95
FSB61-3/8, ID=3/8", RFI Range 200-2000 MHz
FSB61-3/8, ID=3/8", RFI Range 200-2000 MHz
SKU FSB61-3/8-1
$5.95
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FT140-61, ID=.9", RFI Range 200-2000 MHz - Bulk 10 Pack
FT140-61, ID=.9", RFI Range 200-2000 MHz - Bulk 10 Pack
SKU F140-61-10
List price
$38.95
Save 10%
$34.95
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FT140-61, ID=.9", RFI Range 200-2000 MHz - TX36/23/15-4C25 Replacement
FT140-61, ID=.9", RFI Range 200-2000 MHz - TX36/23/15-4C25 Replacement
SKU F140-61
List price
$4.50
Save 14%
$3.89
FT240-61, ID=1.4", RFI Range 200-2000 MHz
FT240-61, ID=1.4", RFI Range 200-2000 MHz
SKU F240-61-1
$16.95
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Multi-Ring/Multi-Snap On Combo Pack, Mix 61, RFI Range 200 - 2000 MHz - 14 filters
Multi-Ring/Multi-Snap On Combo Pack, Mix 61, RFI Range 200 - 2000 MHz - 14 filters
SKU MRSCP-61-14
List price
$106.00
Save 10%
$94.95
FSB Mix 61 - RFI Range: 200-2000 MHz
Refine by
On Sale
Ferrite Mini Snap On Combo Pack, Mix 61, RFI Range 200-2000 MHz - 6 filters
Ferrite Mini Snap On Combo Pack, Mix 61, RFI Range 200-2000 MHz - 6 filters
SKU FMSCP-61-6
List price
$55.00
Save 9%
$49.95
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
FSB61-1/2, ID=1/2", RFI Range 200-2000 MHz, Bulk Pack of 10
FSB61-1/2, ID=1/2", RFI Range 200-2000 MHz, Bulk Pack of 10
SKU FSB61-1/2-10
List price
$59.50
Save 8%
$54.95
FSB61-1/4, ID=1/4", RFI Range 200-2000 MHz
FSB61-1/4, ID=1/4", RFI Range 200-2000 MHz
SKU FSB61-1/4-1
$3.95
FSB61-3/4, ID=3/4", RFI Range 200-2000 MHz
FSB61-3/4, ID=3/4", RFI Range 200-2000 MHz
SKU FSB61-3/4-1
$14.95
FSB61-3/8, ID=3/8", RFI Range 200-2000 MHz
FSB61-3/8, ID=3/8", RFI Range 200-2000 MHz
SKU FSB61-3/8-1
$5.95
On Sale
FT140-61, ID=.9", RFI Range 200-2000 MHz - Bulk 10 Pack
FT140-61, ID=.9", RFI Range 200-2000 MHz - Bulk 10 Pack
SKU F140-61-10
List price
$38.95
Save 10%
$34.95
On Sale
FT140-61, ID=.9", RFI Range 200-2000 MHz - TX36/23/15-4C25 Replacement
FT140-61, ID=.9", RFI Range 200-2000 MHz - TX36/23/15-4C25 Replacement
SKU F140-61
List price
$4.50
Save 14%
$3.89
FT240-61, ID=1.4", RFI Range 200-2000 MHz
FT240-61, ID=1.4", RFI Range 200-2000 MHz
SKU F240-61-1
$16.95
On Sale
Multi-Ring/Multi-Snap On Combo Pack, Mix 61, RFI Range 200 - 2000 MHz - 14 filters
Multi-Ring/Multi-Snap On Combo Pack, Mix 61, RFI Range 200 - 2000 MHz - 14 filters
SKU MRSCP-61-14
List price
$106.00
Save 10%
$94.95