Mobile Station RFI Kits

1783887027 - Mobile Station RFI Kits
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50:50 (1:1) CUBE™ Ladder line to Coax Balun, 1.8-61 MHz, 5 KW, G5RV/ZS6BKW - FREE USA Shipping

Store/Antenna Products/CUBE Impedance Transformers (<1:1, 1:1, >1:1)/Ladder Line to coax transformers
SKU CB-1-5000AT
$129.95
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50:50 (1:1) CUBE™ Ladder line to Coax Balun, 1.8-61 MHz, 5 KW, G5RV/ZS6BKW - FREE USA Shipping
Store/Antenna Products/CUBE Impedance Transformers (<1:1, 1:1, >1:1)/Ladder Line to coax transformers
Product Details
MPN: CB-1-5000AT
Input ohms/Output ohms: 50 ohms in, 50 - 150 ouhms output
Frequency Range < 2:1 SWR (MHz): 1.8-61 MHz
PEP Power Rating (watts): 5000

The CB-1-5000AT Antenna Tuner Balun is a 50 ohm to 50 ohm, triple core feed line choke designed to provide high choking impedance between a balanced ladder line feed line (zepp, G5RV/ZS6BKW, extended double zepp, etc.) and short 50 ohm coax feed line (to antenna tuner) at a power of 5000 watts PEP from 1.8 to 61 MHz. The CB-1-5000AT is configured as a Guanilla transmission line transformer with balanced outputs (current balun configuration). It is best used when ladder line impedance seen at the end of the ladder line to balun connection is close to 50-150 ohms. Enclosure box is 4″ x 4″ x 2″. Typical choking impedance range is 1K-10K ohms from 1-31 MHz.


Typical ZS6BKW multi-band antenna with CB-1-1500 or CB-1-5000

ZS6BKW at AK6R png - Mobile Station RFI Kits

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Mobile RFI kits work two ways: They suppress RFI from on board computers and other sensing/control devices in your vehicle that may cause your radio to be a VICTIM of RFI, and second they suppress RFI generated by your radio as a SOURCE which may affect your on board computers or other devices.  Mobile operations of HF radios (1-30 Mhz) tend to experience more RFI effects than VHF/UHF mobile stations.  If you have both HF and VHF installations in your vehicles, you may need both kits.

To address separate solutions we have developed two separate RFI kits: one for HF (1.8-300 MHz) mobile installations and another for VHF/UHF (30-1000 MHz) mobile installations.  Each kit uses the appropriate ferrite mix for the frequency range desired.