http://forums.radioreference.com/new-york-radio-discussion-forum/303312-fdny-uhf-vs-vhf.html
Maybe I can provide a little background info here 1. In the 1960 to 2000 era, FDNY used VHf high band for mobiles and portables. Mobiles were typically used to talk to dispatchers via repeater channels. 1 repeater channel per borough. 99% of HT comms were on simplex fireground channels that the dispatchers did not monitor. 2. Moving into the UHF era, FDNY has maintained pretty much the same operational scheme. Mobiles talk to dispatchers via repeaters (1 repeater channel per boro), and all HT comms are on unmonitored simplex channels. 3. Apparently the new FDNY UHF repeater channels are synchornized simulcast, and narrowband, and on interstitial channels. Coupled with high interference levels, this might give a hint as to why FDNY sounds crappy on a scanner these days. 4. NYPD uses a different type of system. They have 1 repeater channel per radio zone (to cover 1 or 2 precincts), and HT usage via the repeaters is common. They might still be wideband. And they still might run high power repeaters with very high antennas. It will be interesting to see if anyone reports that a high quality public safety radio can receive FDNY UHF repeaters much better than any scanner. -- You received this message because you are subscribed to the Google Groups "massfire" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/massfire. For more options, visit https://groups.google.com/d/optout.
