Is there a problem using transceivers with their power adjusted down?
With many commercial transceivers, there is a potential problem with them putting out full power when first being keyed up and before their AGC takes control. This produces a spike that may kill the first stage in your transverter. The most foolproof method of making sure you have the very low power needed is to use a resistive pad — but then that complicates things since the pad provides the same dB loss on receive also if left in the pathway, so usually some relay switching arrangement is used then.
