RAFANSYS BRX-30: Longwire Matching Transformator

General

The BRX-30 makes it possible to use 50 Ohm coaxial cable to all forms of wire antennas. The matching unit will adapt any piece of wire between 6 and 25 meters long.

Use

The BRX-30 is made of UV resistance, durable and weatherproof PVC. Any type of wire antenna, longwire, T-antenna-L-antenna etc. can be used in combination with the BRX-30. Due to the Auto-Transformation-Principle, the high impedance of a wire antenna will be adapted to 50 Ohm suitable for coaxial cable and antenna input of your radio. This way all energy received by the antenna will be transported the best way to the receiver.

The frequency range of the BRX-30 ie between 100 kHz and 30 MHz or more. Try to connect as much wire as you can. For receiving low frequencies you need a longer antenne as for higher frequencies! For best results the antenna must be mounted as high and far away from manmade noise as possible.

Static discharges

During adverse weather conditions such as dry weather, strong winds, rain, snow fall, lightning etc, static can develop. Static can be heard as loud cracking noises from the speaker of your shortwave radio. During close by thunder storms, lightning can damage your receiver. For that reason it is important to disconnect the antenna from your radio.

To improve reception you can try grounding your equipment. This can be done by a metal pole driven into the ground, preferably to the ground water level. Never use your main socket as grounding. It can be dangerous and is filled with all kinds of data-pulses which will disturb your reception heavily.

New antennas and accessories developed and produced in The Netherlands by RAFANSYS: http://oldebaas.wix.com/rafansys#

73, Paolo Romani - iz1mll