The RBSA-1P allows two Beverage antennas receiving in opposing directions to share the same space. With the RBSA-1P, build a 2-wire reversible Beverage antenna system with superior directivity and signal-to-noise ratio, most useful on the 160, 80 and 40m bands. The W8JI design consists of a Feedpoint Unit and a Reflection Transformer.
Use two RBSA-1P s with a DX Engineering RLS-2
switch and have four-direction switching using a single feedline.
This system is immune to strong signal overload and core saturation common in multi-transmitter contesting environments, and is used by winning contest stations and low-band DXers.
As an recommended accessory, the DXE-RPA-1
preamp utilizes a push-pull amplifier design and robust components enable it to withstand high signal levels. The dynamic range of the RPA-1 is better than most receivers. It can actually provide a high level of protection against high RF levels and ESD for many transceivers with unswitched, unprotected receive antennna inputs!
The RBSA-1P has two antenna ports. The standard configuration of the RBSA-1P has one port terminated (termination included) so both antennas share a common feedline. Applying negative 10 to 18 Vdc to the feedline switches between the antennas, and the direction of reception. For simultaneous reception from opposing directions, each of the two feedlines can be run to separate receivers.
While the RBSA-1P is optimized to use 450 O ladder line for the antenna element, the system will work with any 300-600 O two-wire line. 450 O ladder line
as well as high quality flooded 75 O coax and F type connectors
, to ensure a weather-tight installation, are available from DX Engineering and are sold separately.Features:
- Broad operating range, 0.2 to 30 MHz
- Fully isolated grounds prevent common-mode noise and unwanted signals
- 75 O design enables the use of high quality, low cost cable and connectors
- RF Shielded housing used for isolation and improved life