hi again alan
thanks for all the info
there seems to be a number of options for me
i have not forgotten the maxwell mod to the qcx to get it to rx as well as tx on wspr
my ubitx is doing a grand job in decoding wspr but the maxwell mod wiil put tx and rx into a nice compact unit
about the gps - i read somewhere that the gps receiver needs to be mounted some distance from the qcx or u3s. that would make the compact unit less compact ie less portable.