Perhaps I am wrong, but isn't analog prohibited in the 700 Mhz band by FCC rule? That would seem to rule out using PL 151.4.
Monmouth County Fire
- Thread starter squad1321
- Start date
Not exactly. Analog is permitted as a "secondary mode", except on the nationwide interop frequencies. There is a trend in NJ of counties using the 700 MHz designated low power frequencies in analog mode for fireground ops.
As with a lot of FCC rules, the language is somewhat unclear, as the first sentence in 90.535(a) reads "All transmitters in the 769–775 MHz and 799–805 MHz frequency bands must use digital modulation.", but then they go on to lay out some exemptions for the use of analog modulation. 90.535(d) states "Transmitters designed to operate on the channels listed in paragraphs (b)(2), (5), (6), and (7) of § 90.531 must be capable of operating in the voice mode at an efficiency of at least one voice path per 12.5 kHz of spectrum bandwidth.", which technically narrowband analog complies with.
https://www.ecfr.gov/current/title-47/chapter-I/subchapter-D/part-90/subpart-R/section-90.535
Couldn’t of said it better. Within the shore right now MC Fire Ops 1 is a prime example of this. It works great.
How is it used? Is it more like a fireground channel? Or is it something you can monitor a few miles from an incident?
fire ground yes, but only the paid agencies/the 43 use it on box alarm assignments due to not every agency in the county having 700/800 radios. on a good day I’ve seen it go a few miles.
squad1321
Member
NJFFS was just toned out on Central Page for brush fire on Rt 18 in D36.
Testing of the new hotline last few days. Sounds pretty good.
richee2000
Communications Professional
Is this the 700 MHZ standalone repeater that has been discussed on here? And if so what is the frequency? Or is this a talk group on the p25 system and if so what is the talk group?
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As stated above it is analog. 771.53125 (PL 151.4)
richee2000
Communications Professional
thank you. is this a single or multi location transmitter ? What is the transmitter site(s) ?
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@richee2000 only cause your special! It is in the DB. Often but not always pulls from the FCC DB. Take a look you can press on the pins for address. This does not guarantee but can indicate a likely site. I know you know how to verify. I then drop pins on my Google Maps of places I verify. Enjoy.
Monmouth County Public Safety Site: South Simulcast
Monmouth County Public Safety Site: South Simulcast Details
www.radioreference.com
richee2000
Communications Professional
I understand the locations of the sites shown that are part of the P25 trunked System.... Are you saying the stand alone 700 analog hotline channel is located at all of these sites also? I think you are saying they are licensed for all these locations ...seems like we need to verify actual active sites.....yes.. plus this map only shows South Simulcast, I can also see the North sites...@richee2000 only cause your special! It is in the DB. Often but not always pulls from the FCC DB. Take a look you can press on the pins for address. This does not guarantee but can indicate a likely site. I know you know how to verify. I then drop pins on my Google Maps of places I verify. Enjoy.
Monmouth County Public Safety Site: South Simulcast
Monmouth County Public Safety Site: South Simulcast Detailswww.radioreference.com
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richee2000
Communications Professional
Monitoring 771.53125 (PL 151.4) in Sea Bright... so far, no activity
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I suggest no PL. CSQ. Never know if that is correct code. Also you may hear Morse ID with PL stripped.
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richee2000
Communications Professional
yup, that is how its in... open , no PL... nearest site to me is Atlantic Highlands
Does anyone have a official change over date?
Also another question for anyone that's up in the county... Just heard 39-21 was redispatched to a MVA that they we're already on scene for when it was x1 injury. Is this a county protocol..?
They were just testing with Shrewsbury around 2 pm. And Holmdel earlier this morning. Like I said, PL is 151.4
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