Mobile Station RFI Kits

Bullet 50:450 (9:1) HF Balun, 1.8-61 MHz, 500/1500 Watts, T2FD, BBTD, ALE

SKU Bullet-9B-500EB
$89.95
Bulk pricing available for quantities of 2 units or more
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Bullet 50:450 (9:1) HF Balun, 1.8-61 MHz, 500/1500 Watts, T2FD, BBTD, ALE
Product Details
Country/Region of Manufacture: USA
Type: NEW
Input ohms/Output ohms: 50 in, 450 out
Frequency Range < 2:1 SWR (MHz): 1.8-61
PEP Power Rating (watts): 500/1500
Transformer Topology: Braodband Ferrite
Hardware Type: Stainless Steel
Weight (pounds): 2
Antenna Compatability: T2FD, BBTD, ALE, Rhombic

The Bullet-9B is a multi-core balun with a compact enclosure (looks like a bullet) enclosure that is lightweight and easy to transport for your fixed/portable ALE, T2FD or BBTD antenna systems. Also useful for rhombics and other wire antennas needing balanced 450 ohm output. Halyard hoist at top of balun for convenient attachment point. Input is via SO-239 coax connector and output with side eye bolt output.Use a 500 ohm non-inductive termination resistor for the T2FD when using this balun.

This transformer requires a feed line choke to isolate the coax feed line from the antenna. A coax noise filter at the radio end of the coax is also recommended to reduce common mode noise current picked up by the coax braid.

Available in 500 watts and 1500 watt models



Remember we over engineer our products, to out perform our competition - just compare the weight of our baluns to theirs and you will know we put much more into our products so you don't have to worry about failure at a critical moment.


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.