present users
471.25 - Carver MA FD
471.30 - maybe Lancaster MA uses this freq - but apparently unlicensed now
471.325 - Westford MA FD + Pawtucket RI FD
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move Carver MA FD to 471.325 and presto - 1 or 2 open freqs for Boston Med Flight to use
(unless there are people still using wideband radios - in which case there might be some adjacent channel user issues - but I doubt it)
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Nationwide - land mobile users
471.25 - only has users in MA + NY + IL + FL + CA + NJ - just 12 licenses in entire USA
471.30 - only 6 licenses in the entire USA - IL + NJ + FL + south CA + NY - plus maybe MA
471.325 - only 15 licenses in USA - Pawtucket RI and Westford MA are the only users east of the Hudson River
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One caveat - there might be some TV stations that still use these bands - I need to check that out
And there are probably FCC limitations that say these channels can only be used in the metro Boston and metro NYC areas
Therefore - let me take a look at the 453 Mhz and 460 Mhz ranges for clear freqs
462.9875 comes to mind immediately - just Merrimack Valley CMED uses that channel near Boston iirc - and 462.9625 might not be used by anyone
You would think that with 20 ish EMS freqs between 462.95 and 463.1875 - someone should be able to find a clear channel or two for medical helicopters - maybe it is 462.9375 to 463.1875 - lets check that out!
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