I was scanning today and I stopped on Marine channel 53A/1063, frequency 156.175. An ambulance was being dispatched to 102 Route 46 in Budd Lake. Why would a local EMS be using a Marine frequency to dispatch?
Budd Lake NJ EMS frequency
- Thread starter W2PSK
- Start date
I guess their transmission is wide because the frequency on my scanner is 156.175 and their transmission was very clear. I was able to make out every thing including the call location, the chief complaint and the responding units. Maybe they never narrow banded back in 2016 when they were supposed to so they're transmitting over that Marine frequency with a 25 kHz wide signal. When I heard that, I locked the scanner on that frequency and I could hear marine traffic.
I have heard them too while doing a Marine band service search. They come in full-scale here in the Hudson County, NJ area.
ecps92
Member
even if they did go narrowband, your close enough it will come over especially being 156.1800 vs 156.1750
Seems like a bad choice for a frequency. I guess no one in the Marine community has complained because the people who talk on the Marine frequency probably can't hear Budd Lake, but they're very clear in South River, about 35 miles south of Budd Lake.
I'm hearing them essentially on the shores of the Hudson River. Marine band users on the river should be hearing them too. However, that marine channel does not seem to have much activity here.
902
Member
The VHF frequency sort fell along 30 kHz channelspacing, then in the 60s was halved to 15 kHz, and predictably in 2013, was halved again to 7.5 kHz. This was never a very good option, because the signals from near-by stations would spill over into the next adjacent channel. 7.5 kHz channel centers use 11.25 kHz wide signals. This is a legacy of poor choices for the VHF band. Now, let's look at marine radio. The channels were developed under international treaties and were 25 kHz apart. Also, marine radio frequencies are still wideband throughout the world and here. 5 kHz of channel separation is inadequate to contain all of the signal because it's 11.25 kHz wide and the receiver IF is not sharp enough to cut out the bleedover, as it's a 20 kHz filter being used in the marine radio (~5 kHz deviation, as opposed to 2.5 kHz narrowbanded deviation).
Why aren't marine users hearing the repeater traffic? They would if Channel 63A was used in New York Harbor, or along the various NJ rivers or lakes. It's only available for use in the Lower Mississippi River operational area. If anyone is using it in Morris County, it's not authorized.
That's why this type of sharing between Part 90.20 public safety operations and Part 80 operations is allowed [see 80.373(f)].
Why aren't marine users hearing the repeater traffic? They would if Channel 63A was used in New York Harbor, or along the various NJ rivers or lakes. It's only available for use in the Lower Mississippi River operational area. If anyone is using it in Morris County, it's not authorized.
That's why this type of sharing between Part 90.20 public safety operations and Part 80 operations is allowed [see 80.373(f)].
People probably avoid marine channels in that area of the band because of that.
murse_joe
Member
wtp
Member
joe, you would have to listen to it as i am a thousand miles away.
so the search is on !
oh,
PW—Public Safety Pool, Conventional
so the search is on !
oh,
PW—Public Safety Pool, Conventional
murse_joe
Member
That's why i was curious, i haven't heard anybody else on that frequency and it's not listed on the database. It's listed as the input for their fire dispatch on the all frequencies. I'm guessing it used to be a talkaround or direct frequency?
| Frequency | Input | License | Tone | Description | Category | Tag | Updated |
|---|
| 153.755000 | 156.18000 | WQG809 | 114.8 PL | Fire Dispatch | Haledon | Fire Dispatch | 2021-08-25 |
ecps92
Member
153.7550 is licensed as the (MO) input, not the Repeater
156.1800 is licensed as the Repeater Output (FB2)
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