This is very useful if you only want to hear your local Police or Fire department since channel frequencies are always shared in different counties or states. It does this by automatically controlling your radio's squelch system. A sub-audible code is a very low audio signal between 50-300 Hz (transmitted at a very low level/below hearing range) that your receiver system filters out and decodes to allow your radio/scanner to listen only to the station transmitting the code and to block out all others on that frequency. PL / CTCSS or DPL / DCS refers to the several different types of sub-audible codes that can be transmitted on a channel frequency by a group of radios using that frequency. The truckers out there running their illegal inline amplifiers at 100 watts (CB is limited to 4 watts by law) on CB channels probably have a higher priority.CTCSS = Continues Tone Coded Squelch System The FCC has very finite resources and chasing down a bunch of folks playing a game with plastic BBs probably isn't very high. But as with FRS/GMRS freqs as long as you use some common sense and aren't out running you mobile VHF/UHF rig at 60 watts and sticking with the lower power HTs you will more than likely never be noticed.

The only down side is like GMRS/FRS you are supposed to have a radio licesned by the FCC to operate in those bands but MURS radios are few and far between.Ī MURS radio is supposed to be certified by the FCC for 'Part 95 operation'. It's an unlicensed band but not many people use it even in the cities. MURS channels are a good place to transmit unnoticed. They love teaching new people and you will pick up tons of knowledge very quickly. It does not apply to GMRS or FRS.Īlthough, if you want to become a comms god. Such as identifying your station every 10-15 mins. The Amateur license comes in with a ton of OTHER freqs that these radios are capable of. Although it might attract attention if you all of a sudden started outputting 25 watts of power. You will most likely have no trouble transmitting on these freqs. It is also illegal to transmit on any GMRS freq at all without a specific GMRS license. Technically it is illegal to transmit over 0.5 watts on any FRS freq and over 1.0 watts on any GMRS freq.

JP perhaps.) At events, do the broadcasted comm channels require an amateur ham license when using Baofangs, Puxings, etc.? At RY2 I managed to tune into and communicate with such channels using a Motorola Talkabout, but I know that the range and power of these radios are far higher.

Motorola ctcss codes