NYC antennas...coming out of the sidewalk?

[giguchan]

Speaking of Halloween... while walking on Grennich st in the west Village close to st Vincents I saw these Antennas coming out of the side walk.(grate). anyone know what they are used for? i'm guessing for some kind of communication...

I wish i had better pictures...

 

[K9WG]

I worked on a project a few years back that monitored storm sewer flow, gas, level, etc. These monitoring stations were linked via data-radio units. Could be something like that.

 

[FrankRaffa]

If they were coming from a grate, it may be part of the NYC Transit system.

 

[radioman2001]

If there was a subway station nearby, I would venture a guess that they are BDA's for PD, EMS and Fire. When I worked EMS in Queens, (1979-1989) the NYPD radio shop built there own BDA's out of some RX preamps. There was a yagi on one side of the street aimed at Elechester Towers with coax running down towards the platform at Main St and Roosevelt, and a 5db omni on the other side of the street doing the same. Down on the main concourse of the station there were 2 mag mount antenna's mounted on the ceiling on 1900 boxes with a cavity attached with the preamps inside. I suspect that each run was tuned to the transmit and receive channels for the 109 pct. Our EMS radios wouldn't work, but the PD's worked great.

 

[giguchan]

Hey Guys,
Thanks for all of the replies... I'm trying to remember but i do think they are coming from a grate of some kind... i would think that they do go underground into the subway system... I forget what train is close by. I think there is one across the street.. not 100% on that either.. just going by memory.

Thanks again!