we posted this in 2024 Peteri Szerlagi <[email protected]>
Aug 10, 2024, 8:45 PM to firerad2, bcc: zerg90.zerg, bcc: usafire, bcc: sonofrcma https://www.faa.gov/documentLibrary/media/Advisory_Circular/AC-150-5210-7E-ARFF-Comm.pdf 33 pages basically faa just requires a crash alert net and a discrete emergency freq (DEF) (used by control tower and erff command and emergency aircraft- can be CTAF freq or unicom) - there are many requirements placed on the crash alert net (reliability, redundancy and utility as prime factors) arff command must have a freq agile aviation radio rest of arff units need a radio with tower, ground, ctaf, and maybe unicom channels - must transmit 5 miles On Wed, Aug 13, 2025 at 4:55 PM Peter Sz via groups.io <[email protected]> wrote: > > also on this video - 134.05 was the Discrete Emergency Frequency (DEF) > - fire trucks to plane > > we have heard that channel mentioned several times before for Logan - > back 10 years at least > > iirc every major airport has a DEF - it is a FAA requirement iirc > > > -=-=-=-=-=-=-=-=-=-=-=- > Groups.io Links: You receive all messages sent to this group. > View/Reply Online (#16764): https://groups.io/g/sme2/message/16764 > Mute This Topic: https://groups.io/mt/114691433/674933 > Group Owner: [email protected] > Unsubscribe: https://groups.io/g/sme2/leave/3347175/674933/106544897/xyzzy > [[email protected]] > -=-=-=-=-=-=-=-=-=-=-=- > > -- 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 view this discussion visit https://groups.google.com/d/msgid/massfire/CAFXWwKYDr7uMued2AJ6f15Pe1J_m84fSeWT%2BWXxTU27d9mL8MA%40mail.gmail.com.
