OK here is the fundamental basics for monitoring the Mississippi Highway Safety Patrol-MHP
Primarily MHP uses an very old VHF Lo Band radio system.
This is a 3 pair system used in simplex mode, with the pairs divided among the 9 districts.
Pair 1: 42.0800 MHz- Dispatch for Districts 3, 6, and 9
42.3000 MHz- Mobiles for Troops E, H, and M
Pair 2: 42.1200 MHz- Dispatch for Districts 1, 5, and 8
42.1800 MHz- Mobiles for Troops C, G, and K
Pair 3: 42.1600 MHz- Dispatch for Districts 2, 4, and 7
42.2400 MHz- Mobiles for Troops D, F, and J
Car to Car: 42.2000 MHz
Tactical, and Air to Ground: 42.8400 MHz
Special Ops: 42.0200 MHz
All these use the same CTCSS Tone of 94.8
MHP Also uses a Statewide Lo Band Repeater Net on 45.3200 MHz.
The CTCSS Tones for each repeater are different for each district.
The repeaters are used as a long range Car to Car net, and as the primary net when the District Dispatch frequency is down.
All MHP Cruisers are equipped with a dual frequency Vehicular Repeater system. The frequencies are: 154.9350 MHz, and 158.9700 MHz, operating on a tone of 100.0 PL. Unlike many repeater equipped units, MHP units never turn the system off except when they power off the radios completely.
For agencies using Lo Band for interop, Statewide Lo Band is 45.2200 MHz, using CSQ.
MHP units are also equipped with VHF Hi Band radios, and use them to interop with local Law Enforcement, and with other State LEA's, most noticabley MDOT Enforcement, MBI, and MBN.
The MBI Interop Channel is 156.0900 MHz.
Statewide Hi Band is 155.4900 MHz, using CSQ.
Hi Band Car to Car *used rarely* is 155.7300 MHz, also using CSQ.
MHP also has a statewide network of UHF Fixed Transmitters on various frequencies and CTCSS Tones.
In Counties using TRS's, MHP has been issued HT's, and Mobiles for those systems.
MHP Mobile EOC is equipped with VHF Hi, and Lo Band radios, UHF Radios, Sattelite Radio Links to MEMA, MDF&W, and can be patched into any TRS in usage.
Primarily MHP uses an very old VHF Lo Band radio system.
This is a 3 pair system used in simplex mode, with the pairs divided among the 9 districts.
Pair 1: 42.0800 MHz- Dispatch for Districts 3, 6, and 9
42.3000 MHz- Mobiles for Troops E, H, and M
Pair 2: 42.1200 MHz- Dispatch for Districts 1, 5, and 8
42.1800 MHz- Mobiles for Troops C, G, and K
Pair 3: 42.1600 MHz- Dispatch for Districts 2, 4, and 7
42.2400 MHz- Mobiles for Troops D, F, and J
Car to Car: 42.2000 MHz
Tactical, and Air to Ground: 42.8400 MHz
Special Ops: 42.0200 MHz
All these use the same CTCSS Tone of 94.8
MHP Also uses a Statewide Lo Band Repeater Net on 45.3200 MHz.
The CTCSS Tones for each repeater are different for each district.
The repeaters are used as a long range Car to Car net, and as the primary net when the District Dispatch frequency is down.
All MHP Cruisers are equipped with a dual frequency Vehicular Repeater system. The frequencies are: 154.9350 MHz, and 158.9700 MHz, operating on a tone of 100.0 PL. Unlike many repeater equipped units, MHP units never turn the system off except when they power off the radios completely.
For agencies using Lo Band for interop, Statewide Lo Band is 45.2200 MHz, using CSQ.
MHP units are also equipped with VHF Hi Band radios, and use them to interop with local Law Enforcement, and with other State LEA's, most noticabley MDOT Enforcement, MBI, and MBN.
The MBI Interop Channel is 156.0900 MHz.
Statewide Hi Band is 155.4900 MHz, using CSQ.
Hi Band Car to Car *used rarely* is 155.7300 MHz, also using CSQ.
MHP also has a statewide network of UHF Fixed Transmitters on various frequencies and CTCSS Tones.
In Counties using TRS's, MHP has been issued HT's, and Mobiles for those systems.
MHP Mobile EOC is equipped with VHF Hi, and Lo Band radios, UHF Radios, Sattelite Radio Links to MEMA, MDF&W, and can be patched into any TRS in usage.
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