Ferrite filter products can help speed up digital devices by suppressing common mode current from RFI sources OR prevent digital devices from emitting RFI on its connecting cables and power supply lines.
Model CB-9-1500 is a 9:1 multi-core, balanced output balun housed in a water resistant enclosure with top stud/wingnuts (TS) or Eye bolts (halyard top hoist, side eye bolts/outputs) used to translate a 50 ohm input up to 450 ohms at RF power levels up to 1500 watts PEP when used with a matched load. With matched 450 ohm load the SWR over the frequency range 1.8 to 61 MHz is less than 2:1 on the coax feed side. Actual SWR is under 1.25:1 from 1.8-180 MHz so very useful for 30-150 MHz also - see graphs for specific details
Features
* Wide Frequency Range 1.8-161 MHz, usable to 180 MHz < 1.25:1 into resistive load
* High Power, 1500 watts PEP (up to 61 MHz)
* Convenient side tab mounting feet
Many designs for BBTD antennas using 9:1 baluns at HFLINK.COM
We also have the 9:1 with the built-in 1:1 choke/balun in part# CB-9-1-1500EB