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
Palstar LA-1K Linear Amplifier Deluxe RFI Kit - 7 Filters for RF In/Out, AC power, Control LinesProduct DetailsMPN: RFI-PALSTAR-LA1KFilter Power Rating (PEP watts): max coax cable ratingRFI Suppression Range (MHz): 1-600 MHz# Ferrite Filters: 7Typical Use:: AC/DC power, RF In/out (x3), Control LinesAll 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 (1x):Ring Filter (1.4” ID) – 5-9 turns of RG-58/8X size through center
RF Output (3x):Snap On Filter (1” ID) – 3 turns of coax cable through center
Relay/ALC Cables (1x):Snap On Filter (3/4” ID) – multiple turns through center, both cables in same ferrite
Band Control cable:Snap On Filter (3/4” ID)- multiple turns through filter
AC/DC Power:Snap On Filter (1” ID) – 3 turns of power cord through center
You get 1.4" ID Ring x 1, 1" ID snap on x 4, 3/4" ID snap on x 2 with each kit.
STOP THE RFI NOW WITH THIS SIMPLE TO INSTALL KIT
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 (1x):Ring Filter (1.4” ID) – 5-9 turns of RG-58/8X size through center
RF Output (3x):Snap On Filter (1” ID) – 3 turns of coax cable through center
Relay/ALC Cables (1x):Snap On Filter (3/4” ID) – multiple turns through center, both cables in same ferrite
Band Control cable:Snap On Filter (3/4” ID)- multiple turns through filter
AC/DC Power:Snap On Filter (1” ID) – 3 turns of power cord through center
You get 1.4" ID Ring x 1, 1" ID snap on x 4, 3/4" ID snap on x 2 with each kit.
STOP THE RFI NOW WITH THIS SIMPLE TO INSTALL KIT
