I would go with the .80/40 since both duplexers will be rejecting both 
TXs nearly to the maximum. I would keep the UHF close for the same reasons.

Joe M.

johnmichaelwelton wrote:
> 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
> 
> 
> 
> ------------------------------------
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 

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