I have the 1101 and the 1103. The 1103 has much richer audio, SSB
and the ability to off tune a frequency to get away from interference.
The 1101 tune SW in 5kHz steps.
The only thing I can think of that the 1101 is better at is in
battery consumption. It is very easy on batteries while the 1103 chews
thru them in short order.
Bob