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Hacksaw
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A platform mounted 508

Sat Jul 05, 2014 1:53 am

A platform mounted 508:

Image

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siren fan
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Re: A platform mounted 508

Sat Jul 05, 2014 2:50 am

I'm assuming that a radio tower to activate the siren and not a lightning pole right? Cause that siren doesn't look too high up.

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Re: A platform mounted 508

Sun Jul 06, 2014 4:35 am

That antenna and ground plane radials (the horizontal pieces that stick out of the base of the antenna above the siren) would be in either the UHF or VHF FM band range ...FM business band(Police, Fire, Ambulance, Emergency Management etc. etc.)...I would imagine that the RF (radio interference) is terrible when that siren is fired off.
Siren activation antennas are much shorter ...no more than a couple of feet or shorter due to the freq. that they use to activate the siren.
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Re: A platform mounted 508

Tue Jul 15, 2014 8:55 pm

Replaced a 1950's era Federal Model 5, this picture is deceiving on height of the tower also... the siren is probably all of 20 feet in the air and the tower, while rusted, is stout and solid. The antenna you see mounted on it is the recieve antenna for the in station scanner, Tioga County, NY operates on the low band system (46 mhz) with a few fire ground operation channels on the high band (154 mhz) frequency. Very cool to see that there is a 508 up that way also, I was already sort of considering making another trip up to the greater Broome-Tioga County area for fire apparatus photographes but this sort of pushes me further toward that direction.

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