This item is a 225 - 400MHz power amplifier module, manufactured in the UK by Plessey. This is a very high quality device, built into a robust, heavy duty milled aluminium box. The plot below shows output power vs frequency for two input drive levels, 40dBm (10W) and 42dBm (16W). Outside of the range shown, power falls off quite steeply, and this amplifier is NOT suitable for the UK 70cm amateur radio band. Perhaps retune is possible, but we have not investigated this.

Please note, the internal picture shown below is infact a LIBRARY picture. The amplifier offered for sale in this advert has NOT been opened up by us. Sorry, absolutely NO EXPORT.