We are investigating the possibility of adding 2M/440 DSTAR. At the university, we currently have the following analog repeaters at ~175 ft HAAT (in/out):
144.850 - 145.450 449.825 - 444.825 We will have access to the roof of the new hospital (about the same HAAT), about 1 mile away and would like to add a separate DSTAR suite without interfering with the existing analog site. SERA has 3 freq band options for VHF DSTAR for example (in/out): 144.800 - 145.400 (600 KHz split) 146.480 - 145.080 (1.4 MHz split) 147.460 - 144.960 (2.5 MHz split) UHF for DSTAR generally follows the analog band plans, e.g. 442-444 out, +5 MHz in and DSTAR pairs are interspaced with the analog pairs, e.g. 449.9875 - 444.9875. Could anyone recommend a strategy to pick new 2M and 440 DSTAR pairs that would provide the least interference for the existing analog repeaters above. Thanks John/N4SJW Charleston, SC
