Portable Operation RFI Kits

Hybrid 16:1 Current Balun + 1:1 Current Balun in one enclosure, 1.8-31 MHz, 1.5KW PEP - BBTD, T2FD, V-Beam Antenna

SKU CB-16-1-1500
$139.95
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Hybrid 16:1 Current Balun + 1:1 Current Balun in one enclosure, 1.8-31 MHz, 1.5KW PEP - BBTD, T2FD, V-Beam Antenna
Product Details
MPN: CB-16-1-1500EB/TS
Country/Region of Manufacture: USA
Input ohms/Output ohms: 50 in/800 out
Frequency Range < 2:1 SWR (MHz): 1.8-31 MHz
PEP Power Rating (watts): 1.5KW
Input Connector: UHF SO-239
Output Connector(s): Side Eyebolts (EB) or Top Studs (TS)
Enclosure Size: 4"x4"x 2"(1.5KW)
Weight (pounds): 3
Antenna Compatability: BBTD, TTFD, V-Beam, Double Terminated Dipole

After many requests we have created a compact, special balun for Terminated Folded Dipoles (TTFD), Broad band Terminated Dipole/loop (BBTD) and V beam antennas with termination resistors at each end. The CB-16-1-1500 is a CUBE(TM) enclosure containing a multi-core, broadband 16:1 impedance transformer (50 ohm coax input to balanced 800 ohm output) in series with a 1:1 current balun for extra common mode current choking to keep RF current off the outside of the coax braid and on the antenna where it belongs. The extra choking action also means that the coax feed line will not act as a radiator causing unnecessary RF interference (RFI). Rated for full 1500 watts PEP and 450 watts CW (ICAS). 1.8Mhz – 31 MHz.

CB-16-1-1500EB is housed in a 4” x 4” x 2” waterproof housing with SO-239 input and stainless steel eye bolts on the side for ease of connection to your wire antenna. Top eye bolt acts as an antenna hoist. Also available with top studs for post or wall mounting (Model # CB-16-1-1500TS)

Termination resistor for the antenna is model # TR-1000-600 for single resistor termination.

BBTD Installation by K!FU

Another BBTD Installation

Portable operation is fun but also brings challenges to the radio operator concerning receiver “noise” levels, RF interference from adjacent sources including close by transmitting stations, and RFI from portable generators.  A typical scenario and some suggested Palomar product solutions are shown in the picture below:

Generator RFI testimonial:

Bob 

Received your order in a timely fashion. Tried the generator kit on Sunday & it drops the noise from S9 to S5 and 
took out all the electrical noise.  I may want some more toroids from you at some point for other interference problems
I have  here.
Ken VE3KCY

Using an amplifier?  Don’t forget our Linear Amplifier RFI Kits

Want to make up your own RFI kits for a particular operation? Here are links to some of  typical RFI solutions used in portable operations:

AC/DC common mode filters

Feed Line chokes

Coax Noise Filters

If you use a computer for logging in your portable operations, RFI getting into computers will often lock up your computer and/or radio and a computer RFI suppression kits may be helpful

Computer RFI Kits

Make your expedition or portable operation a pleasant and fun outing and remember to take along your RFI kits so you have more time to operate rather then to troubleshoot intermittent or noisy receiver conditions.

Portable Antenna Kits

If you need an effective portable antenna which folds up for transport yet is easy to deploy at your operating site, consider the BULLET series of end fed wire antennas.

BULLET Antennas (click on link or picture for more info)

Bullet Antenna Product 300x292 - Portable Operation RFI Kits