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

HF Linear Amplifier Deluxe RFI Kit - 12 Filters for RF In/Out, AC power, Control Lines - Quadra, PW1, Acom Tokyo High Power

SKU RFI-LA-DELUXE
$129.95
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HF Linear Amplifier Deluxe RFI Kit - 12 Filters for RF In/Out, AC power, Control Lines - Quadra, PW1, Acom Tokyo High Power
Product Details
MPN: RFI-LA-DELUXE
Filter Power Rating (PEP watts): max coax cable rating
RFI Suppression Range (MHz): 1-60 MHz
# Ferrite Filters: 12
Typical Use:: AC/DC power, RF In/out, Control Lines

All coax I/O and control lines and AC/DC power line for high end amplifiers with multiple RF inputs and outputs, control/keying/frequency I/O.

Includes typical amps such as Yaesu Quadra, Icom PW1, ACOM, ALPHA,Tokyo High Power, Palstar, ETC.

Included are the following chokes and installation guidelines to suppress RFI in and out:


Deluxe Kit:

RF Input (2x):Ring Filter (1.4” ID) – 5-9 turns of RG-58/8X size through center

RF Output (4x):Snap On Filter (1” ID) – 3 turns of coax cable through center

Relay Cable (2x):Snap On Filter (1/2” ID) – multiple turns through center

ACC1/ACC2 (2x):Snap On Filter (1/2” ID)- multiple turns through filter for each ACC

Transceiver Control/Remote CIV (1X):multiple turns of both cables through filter

AC/DC Power:Snap On Filter (1” ID) – 3 turns of power cord through center

You get 1.4" ID Ring x 2, 1" ID snap on x 5, 1/2" ID snap on x 5 with each kit.

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