[Trlog] Band output in SO2R

[VE5ZX]

I have a DX doubler. It is connected to TR log via LPT1. I am using the BCD 
output from the DX doubler to drive a band decoder. I was hoping to use LPT2 
to drive the second band decoder. When I ALT-R to switch from radio1 to 
radio 2 the BCD output on the DX doubler changes from the band on radio 1 to 
the band on radio 2.

In order to use the band decoders do I have to have three LPTs - one for 
each band decoder and one for the DX doubler?

tnx
Syl

Sylvan Katz - VE5ZX
Saskatoon, SK