Fits in-line between the aerial and the receiver. The input connection is a BNC socket, output by BNC plug on a patch lead (supplied). F type (satellite TV) connectors are also available.

It features a neat and compact assembly in a black enamelled metal box, and can be powered by an internal 9 volt (PP3) battery (not supplied), or an external supply.

Box dimensions are 70 x 30 x 45mm

The minimum gain is 25dB over the range 137 - 138MHz which should make those weak signals fully readable. Another advantage of this preamplifier is the rejection of out-of-band signals which will further improve the quality of the in-band signals.

The external power supply should be in the range 9 to 15 volts, but a regulated supply must be used. Note that unregulated supplies may pass mains-borne interference and there is a risk that their output voltage may be too high under the low load drawn by the preamp. We can supply a suitable mains adaptor type MA-300 at GBP 8.50.

When ordering, please state the required connector version:

For BNC version: order WP-3/B; for F type, order WP-3/F

The price of the WP-3 (either version) is GBP 29.95