by OH7SV » 19 Nov 2012 20:52
Edgar,
JUMA TRX2 and TRX2A standard firmware in is not limiting TX frequency coverage. You can transmit on any frequency from 1.5MHz to 30MHz.
Note that the PA low-pass filters are optimized for ham bands 1.8MHz - 28MHz. This may mean more harmonics on non ham frequencies especially in low edge of the LPF range. The change over frequencies for LPF filters are 2MHz, 4MHz, 8MHz, 15MHz.
73 Matti OH7SV