I have acquired the above transceiver 25 watt version. The back light does not work on the display, but works on the buttons. All seems to work ok, but I am only getting about 6.5 watts on FM and AM and about 12-15 watts whistling on LSB and USB. Measurement taken on a Bird 43 and dummy load. Is this output correct? Specs says 10 watts on FM, AM and 25 on SSB. Wonder if there is an issue with the finals? Looking to sell it, but want to repair or state any issues before. Thanks.