Thanks for the update Mike. I just did a little more research. Spencer does not seem to have any other freqs for FD use. Looking at the other town licenses, it seems that a MO3 does not have to be separately licensed if it has a lower power than other licensed mobiles on the freq. Therefore - Spencer FD might have MO3 on 33.64 even though the FCC license does not explicitly show them.
Therefiore - it appears that Spencer FD uses 155.19 for portable radios that work thru the 33.64 mobile radios. The diagram would be ::: portable >> 155.19 >> mobile >> 33.64 >> dispatcher The reverse path from the fire dispatcher to the fire portable would be ::: dispatcher >> 33.64 >> mobile >> 155.19 >> portable This is pretty much what you would expect. The other Spencer FD VHF high freq seems to be a typical simplex freq with bases and mobiles. Of course the license also would allow for portables to transmit on 155.19, and listen to 154.0625 (or whatever that other VHF freq is). This could be a secret link freq from Chiefs to dispatcher. They could also use MO3 transmitting on 155.19 to extend the range of portables that are transmitting on 154.0625. Or maybe they just use the MO3 to patch highband portables to low band portables. Apparently my point is - 'even a simple system can be complicated'. Especially when I start to explain it. :-) Peter Sz Other Spencer licenses - Rescue 33.08 - Water 152.885 - DPW 45.24 - Police 45.18 + 154.95 HT/MO3 - if they combined all of their channels they could run a 2 channel highband trunked system - High OOOOOOH! PS - the Spencer PD radio system is easy - 45.18 base and mobile - 154.95 - HT + MO3 - (and assuming that they actually have MO3 on 45.18 also, it all makes sense) Did I make enough of a mountain out of this mole hill? -- You received this message because you are subscribed to the Google Groups "massfire" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/massfire?hl=en.
