Dual NAC codes

[starwtc]

Was listening to Scottsbluff Nat Monument yesterday, saw a nac code of 200 so I stored it . After a while I realized I was only hearing half of the conversation so went back to nac search a saw that the base was using nac 200 and portables using nac 100, didn't know you could do that using one frequency but I guess that's why I listen, just to learn more!

 

[ecps92]

Most Likely two different Repeater Sites, where each Repeater has it's own NAC and the users are programmed to RX either one.

Which Freq??

Was listening to Scottsbluff Nat Monument yesterday, saw a nac code of 200 so I stored it . After a while I realized I was only hearing half of the conversation so went back to nac search a saw that the base was using nac 200 and portables using nac 100, didn't know you could do that using one frequency but I guess that's why I listen, just to learn more!

 

[SCPD]

It sounds like they are simplex were the base is programmed with TX NAC 200 RX NAC 100 and reverse for mobile/portables.