Radio Transmitter tower locations?

[NS9710]

Is there a website or some reference point I can look at to pinpoint the location of the USCG/Maritime transmitter towers, I'm sure that the Welland Canal has some towers repeated since I pull their transmissions in so well, as well as channels 16 and 22's advisories.

I can hear the USCG on said channels.

But when people reach out to the USCG on 16, I hear the USCG, but not the vessel out on the water [as to be expected I guess]

Any ideas here?

 

[kc2asb]

Perhaps start here on the USCG website. It has a lot of information related to maritime communications. Unless you have a good antenna up high and in the clear, you will not hear most vessels out on the water.

Maritime Safety Information | Navigation Center

 

[dlwtrunked]

Is there a website or some reference point I can look at to pinpoint the location of the USCG/Maritime transmitter towers, I'm sure that the Welland Canal has some towers repeated since I pull their transmissions in so well, as well as channels 16 and 22's advisories.

I can hear the USCG on said channels.

But when people reach out to the USCG on 16, I hear the USCG, but not the vessel out on the water [as to be expected I guess]

Any ideas here?

The network is called Rescue21. Towers combine USCG channels and VHF DF on the top.
See

Rescue 21 Distress System Coverage | Navigation Center

 

[hill]

Look under the Rescue 21 website.

It shows the Remote Fixed Facility sites assigned to each Sector with coverage maps.

Remote Fixed Facilities were called high sites in the Legacy VHF Radio System. They are the remote antenna/transmitters used by the Coast Guard

 

[dlwtrunked]

Perhaps start here on the USCG website. It has a lot of information related to maritime communications. Unless you have a good antenna up high and in the clear, you will not hear most vessels out on the water.

Maritime Safety Information | Navigation Center

Hard to get to the right link from there. See link in my reply.

 

[dlwtrunked]

Look under the Rescue 21 website.

It shows the Remote Fixed Facility sites assigned to each Sector with coverage maps.

Remote Fixed Facilities were called high sites in the Legacy VHF Radio System. They are the remote antenna/transmitters used by the Coast Guard

I have posted that link in my reply to the post.

 

[hill]

Also Sectors can select one site or multiple ones to transmit on at once depending on the situation.

 

[dlwtrunked]

Also Sectors can select one site or multiple ones to transmit on at once depending on the situation.

I have also heard some sites transmit more than one sector. Note also, these sites have VHF channels for USCG only use in the Federal VHF band.

 

[kc2asb]

I have posted that link in my reply to the post.

Yes, it does require knowing where to look in the link I posted and then drilling down. Thanks for giving a more direct route.

The maps they provide are very useful, showing coverage for the requirement to hear a 1w signal a minimum of 20 nautical miles off shore.

 

[dlwtrunked]

Yes, it does require knowing where to look in the link I posted and then drilling down. Thanks for giving a more direct route.

The maps they provide are very useful, showing coverage for the requirement to hear a 1w signal a minimum of 20 nautical miles off shore.

Indeed, nicer maps than one are used to seeing. Wish they named the neared actual town. An earlier version did.

 

[hill]

have also heard some sites transmit more than one sector. Note also, these sites have VHF channels for USCG only use in the Federal VHF band.

Sites shared between Sectors have all the standard channel lineup.

They sites are really only shared when they on border of two sector AORs

Also height of antenna varies a lot between sites. In my local Sector they vary from just over 200' to 600'.

 

[dlwtrunked]

Sites shared between Sectors have all the standard channel lineup.

They sites are really only shared when they on border of two sector AORs

Also height of antenna varies a lot between sites. In my local Sector they vary from just over 200' to 600'.

Yes, really would not make sense for a site to broadcast 2 sites unless on/near the border of them. A site near here (King George in the map but actually located in Comorn) has transmitted both National Capital and Virginia. I have seen the varying heights--largely depends on the elevation of the tower base to get range. Some are quite far from the actual water to get height. Once you see one and the VHF DF on top and VHF communications on the antennas on the side, when traveling, one notices more without looking for them.

 

[ecps92]

Perhaps start here on the USCG website. It has a lot of information related to maritime communications. Unless you have a good antenna up high and in the clear, you will not hear most vessels out on the water.

Maritime Safety Information | Navigation Center

Also they all should appear on AIS, look for VTS
ie: VTS 3669769

 

[merlin]

This site should fix you up: MAPRAD.IO | Radiocomms Register Search Tool

 

[ecps92]

This site should fix you up: MAPRAD.IO | Radiocomms Register Search Tool

Only going to work for FCC registered tower sites/transmitters

Since the USCG is federal they are handled thru the NTIA and generally not publicly available thru that App/Tool

 

[dlwtrunked]

Also they all should appear on AIS, look for VTS
ie: VTS 3669769

Also they all should appear on AIS, look for VTS
ie: VTS 3669769

? Rescue21 sites do not transmit AIS and are not on those maps which will show a ships location..

 

[ecps92]

? Rescue21 sites do not transmit AIS and are not on those maps which will show a ships location..

Every one of the known Rescue 21 sites, I've looked for all have an MMSI and do show up via AIS

Here is one right down the street at the Rescue 21 (formerly known as High Sites) location

Ship VTS 3660610 (Manned VTS) Registered in - Vessel details, Current position and Voyage information - IMO 0, MMSI 3660610, Call sign

Vessel VTS 3660610 is a Manned VTS, Registered in . Discover the vessel's particulars, including capacity, machinery, photos and ownership. Get the details of the current Voyage of VTS 3660610 including Position, Port Calls, Destination, ETA and Distance travelled - IMO 0, MMSI 3660610, Call sign

www.marinetraffic.com

 

[dlwtrunked]

Every one of the known Rescue 21 sites, I've looked for all have an MMSI and do show up via AIS

Here is one right down the street at the Rescue 21 (formerly known as High Sites) location

Ship VTS 3660610 (Manned VTS) Registered in - Vessel details, Current position and Voyage information - IMO 0, MMSI 3660610, Call sign

Vessel VTS 3660610 is a Manned VTS, Registered in . Discover the vessel's particulars, including capacity, machinery, photos and ownership. Get the details of the current Voyage of VTS 3660610 including Position, Port Calls, Destination, ETA and Distance travelled - IMO 0, MMSI 3660610, Call sign

www.marinetraffic.com

Receive is one thing but transmit another. The sites near me do not transmit.

 

[dlwtrunked]

Receive is one thing but transmit another. The sites near me have never been seen transmitting.

 

[hill]

Here is one right down the street at the Rescue 21 (formerly known as High Sites) location

Are you sure this is a Rescue 21 RFF?

It says VTS which would Vessel Traffic used in ports with heavy traffic..