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
Garage Door Opener RFI Kits
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Garage Door Opener RFI Kit, Low Freq (150 KHz-10 MHz) for AM Broadcast or High Freq (1-300 MHz) for Ham Radio or Commercial RFIGarage Door Opener RFI Kit, Low Freq (150 KHz-10 MHz) for AM Broadcast or High Freq (1-300 MHz) for Ham Radio or Commercial RFISKU RFI-GDOList price $49.95 Save 30%$34.95
Garage Door Opener RFI Kits
Refine by
On Sale
Garage Door Opener RFI Kit, Low Freq (150 KHz-10 MHz) for AM Broadcast or High Freq (1-300 MHz) for Ham Radio or Commercial RFI
Garage Door Opener RFI Kit, Low Freq (150 KHz-10 MHz) for AM Broadcast or High Freq (1-300 MHz) for Ham Radio or Commercial RFI
SKU RFI-GDO
List price $49.95
Save 30%
$34.95