Business Radio
From HFUnderground
(→Common Itinerant and Low Power Business Frequencies) |
(→Common Itinerant and Low Power Business Frequencies) |
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*The default channels / frequencies for most job site / contractor / construction site crews will vary. Many crews use [[FRS]], [[MURS]] or [[CB]] for on-site communications, especially if multiple contractors and subcontractors are working together on a large site. The default out of the box factory UHF channels are also often heavily used. These include 464.550 MHz, 464.500 MHz, 467.925 MHz, 467.850 MHz, 467.875 MHz, etc. Most radios default to 67.0 Hz CTCSS tone (PL tone - called “code” in many instances). Other popular CTCSS and DCS tones or codes include 77.0 Hz, 88.5 Hz, 100.0 Hz, 203.5 Hz, 250.3 Hz, and the DCS / DPL codes 023, 025, 026, 032, and 754. Patience, a SDR and/or a scanner or frequency counter with CTCSS / DCS decode capability will yield interesting results. In urban areas it is very common to hear multiple users on the same frequency or channel, but with different CTCSS / DCS (PL / DPL) tones and/or codes in use. This is particularly common on the UHF business itinerants, the FRS channels and the MURS channels. Motorola MURS radios default to 154.570 MHz and 154.600 MHz out of the box. Motorola on-site VHF handhelds default to 151.625 MHz and 151.955 MHz out of the box (see list above for all available channels in both the VHF and UHF configurations. UHF is generally more popular in urban areas while VHF is more commonly used for mobile to mobile communications and in rural areas. However, all three bands can and are used in urban areas. | *The default channels / frequencies for most job site / contractor / construction site crews will vary. Many crews use [[FRS]], [[MURS]] or [[CB]] for on-site communications, especially if multiple contractors and subcontractors are working together on a large site. The default out of the box factory UHF channels are also often heavily used. These include 464.550 MHz, 464.500 MHz, 467.925 MHz, 467.850 MHz, 467.875 MHz, etc. Most radios default to 67.0 Hz CTCSS tone (PL tone - called “code” in many instances). Other popular CTCSS and DCS tones or codes include 77.0 Hz, 88.5 Hz, 100.0 Hz, 203.5 Hz, 250.3 Hz, and the DCS / DPL codes 023, 025, 026, 032, and 754. Patience, a SDR and/or a scanner or frequency counter with CTCSS / DCS decode capability will yield interesting results. In urban areas it is very common to hear multiple users on the same frequency or channel, but with different CTCSS / DCS (PL / DPL) tones and/or codes in use. This is particularly common on the UHF business itinerants, the FRS channels and the MURS channels. Motorola MURS radios default to 154.570 MHz and 154.600 MHz out of the box. Motorola on-site VHF handhelds default to 151.625 MHz and 151.955 MHz out of the box (see list above for all available channels in both the VHF and UHF configurations. UHF is generally more popular in urban areas while VHF is more commonly used for mobile to mobile communications and in rural areas. However, all three bands can and are used in urban areas. | ||
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+ | =Default Channels For On-Site Radios= | ||
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+ | *Motorola CLS/RDX series (UHF) | ||
+ | |||
+ | *Channel 1 - 464.5500 MHz [67.0 Hz PL] | ||
+ | *Channel 2 - 467.9250 MHz [67.0 Hz PL] | ||
+ | *Channel 3 - 467.8500 MHz [67.0 Hz PL] | ||
+ | *Channel 4 - 467.9250 MHz [67.0 Hz PL] | ||
==VHF Low Band 25-50 MHz== | ==VHF Low Band 25-50 MHz== |
Revision as of 15:03, 19 November 2019
Officially called the "Industrial/Business Radio Pool" under 47 CFR 90.35, 47 CFR 90.75 and others...all within part 90 of the FCC rules (which covers land mobile radio in general). Known as LMR (land mobile radio), PMR (professional mobile radio) or PLMR (professional land mobile radio) as well as just the business band.
High HF and VHF/UHF Land mobile radio service authorized under Part 90 (Land Mobile Radio Services) of the FCC rules. FCC eligibility verbiage states: Persons primarily engaged in any of the following activities are eligible to hold authorizations in the Industrial/Business Pool to provide commercial mobile radio service as defined in part 20 of this chapter or to operate stations for transmission of communications necessary to such activities of the licensee: (1) The operation commercial of business activity; (2) The operation of educational, philanthropic, or ecclesiastical institutions; (3) Clergy activities; or (4) The operation of hospitals, clinics, or medical associations. The FCC has allocated a massive amount of frequencies for the Business/Industrial Radio Service (commonly referred to as "Business Radio" or "Business Radio Service"). The FCC allows use of frequencies in the 2000 to 25000 kHz (2-25 MHz) band for business purposes, only if frequencies above 25 MHz will not satisfy the requirements of the user, in other words, in special cases only. In these cases, the businesses in question are assigned frequencies in the HF fixed and mobile bands.
Business Radio is not to be confused with license free or simple license services available for land mobile and portable or walkie-talkie radio purposes in the United States. These VHF/UHF services include FRS and GMRS, MURS and CB. FRS, MURS and CB are all heavily used for business purposes and/or as a low cost alternative to the hassle of business band (getting a FCC license, etc.).
It should also not be confused with VHF marine although there are specific VHF marine band channels designated for commercial and port usage in the context of marine based businesses and industries.
Contents |
Common Itinerant and Low Power Business Frequencies
Often heard at construction sites, special events, shopping malls, stores, gas stations, etc. Often supplemented with heavy use of FRS frequencies. Use of all 22 FRS frequencies is permitted by businesses under the FCC rules. Narrowband and low power (2 watts or less) simplex use of any of the 22 FRS frequencies is permitted license free. The old GMRS frequencies are labelled with their original color dot designation even though most users will simply refer to the FRS channel number.
Can businesses use FRS radios? Yes they can under Part 95 of the FCC rules. Only the 5 MURS frequencies and the 22 FRS frequencies may be used without a license, however.
Most of the transmissions you'll hear on these frequencies are from portable handheld radios - walkie-talkies, but sometimes high powered mobile radios or even portable repeaters are heard. Portable or temporary repeater output frequencies may be any of the VHF low or VHF high frequencies. On the UHF band, input frequency is 5 MHz above output frequency. In many situations all frequencies are used for simplex only. The 457 MHz, 462 MHz and 467 MHz frequencies are simplex use only and are often used for on-site communications using portable handheld radios. Several of the itinerant frequencies may be used as repeater output channels, repeater input channels or for simplex/talk-around purposes. Examples include the 464.500 MHz, 464.550 MHz and 469.500 MHz, 469.550 MHz frequencies. 464.550 MHz may be used as a repeater output (paired with 469.550 MHz) or both frequencies may be used for simplex purposes. The 457/467 MHz frequencies are also used by shipboard and dockside repeaters or simplex systems aboard ship (10 MHz offset or 10.225 MHz offset). The itinerant frequencies in the VHF bands do not have a set pairing or offset like the UHF bands do.
Note the Motorola RDX, CLS and XTN series default channels - these are not FRS/GMRS frequencies. Motorola FRS and GMRS radios use the standard 14 or 22 FRS channels. The default channels listed below only apply to Motorola business band radios in the RDX, CLS, XTN and similar series/variants sold in the United States
- 27.490 MHz - Itinerant, may be used as base, mobile and/or part of temporary or portable repeater
- 35.040 MHz - Itinerant, may be used as base, mobile and/or part of temporary or portable repeater
- 43.040 MHz - Itinerant, may be used as base, mobile and/or part of temporary or portable repeater
- 151.5050 MHz - Itinerant
- 151.5125 MHz - Itinerant, Motorola RDX default channel 10
- 151.6250 MHz - Itinerant - Red Dot, Motorola RDX default channel 1
- 151.6400 MHz - Itinerant - narrowband only, maximum bandwidth 6.25 kHz (generally 6K00F3E, 4K00F1E, 4K00F1D, etc.)
- 151.6550 MHz - Motorola RDX default channel 11
- 151.6850 MHz - Motorola RDX default channel 12
- 151.7000 MHz - Itinerant, maximum power 35 watts, Motorola RDX default channel 5
- 151.7150 MHz - Motorola RDX default channel 13
- 151.7450 MHz - Motorola RDX default channel 14
- 151.7600 MHz - Itinerant, maximum power 35 watts, Motorola RDX default channel 6
- 151.7750 MHz - Motorola RDX default channel 15
- 151.8050 MHz - Motorola RDX default channel 9
- 151.8200 MHz - MURS Channel 1
- 151.8350 MHz - Motorola RDX default channel 8
- 151.8650 MHZ - Motorola RDX default channel 16
- 151.8800 MHz - MURS Channel 2
- 151.8950 MHz - Motorola RDX default channel 17
- 151.9250 MHz - Motorola RDX default channel 18
- 151.9400 MHz - MURS Channel 3
- 151.9550 MHz - Purple Dot, Motorola RDX default channel 2
- 152.8850 MHz - Motorola RDX default channel 3
- 152.9000 MHz - Motorola RDX default channel 19
- 152.9150 MHz - Motorola RDX default channel 4
- 152.9450 MHz - Motorola RDX default channel 7
- 153.0050 MHz - Motorola RDX default channel 24
- 154.4900 MHz - Motorola RDX default channel 20
- 154.4975 MHz - Mobile or base
- 154.5050 MHz - Mobile or base
- 154.5150 MHz - Motorola RDX default channel 21
- 154.5275 MHz - Itinerant, maximum power 35 watts, Motorola RDX default channel 22
- 154.5400 MHz - Motorola RDX default channel 23
- 154.5475 MHz - Motorola RDX default channel 25
- 154.5550 MHz - Mobile or base
- 154.5700 MHz - MURS Channel 4 Blue Dot - "wideband" FM allowed (up to 20 kHz bandwidth)
- 154.5850 MHz - Mobile or base
- 154.6000 MHz - MURS Channel 5 Green Dot - "wideband" FM allowed (up to 20 kHz bandwidth)
- 154.6100 MHz - Narrowband modes only
- 154.6250 MHz - Mobile or base (sometimes used for paging)
- 154.6400 MHz - Mobile or base (154.6475 MHz/154.650 MHz/154.655 MHz/154.6575 MHz/154.655 MHz start Public Safety frequency allocations)
- 158.4000 MHz - Itinerant, Motorola RDX default channel 26
- 158.4075 MHz - Itinerant, Motorola RDX default channel 27
- 451.1875 MHz - Motorola default channel 65
- 451.2375 MHz - Motorola default channel 66
- 451.2875 MHz - Motorola default channel 67
- 451.3375 MHz - Motorola default channel 68
- 451.4375 MHz - Motorola default channel 69
- 451.5375 MHz - Motorola default channel 70
- 451.6375 MHz - Motorola default channel 71
- 451.8000 MHz - Itinerant, maximum power 35 watts
- 451.8125 MHz - Itinerant, maximum power 35 watts
- 452.3125 MHz - Motorola default channel 72
- 452.4125 MHz - Motorola default channel 74
- 452.5125 MHz - Motorola default channel 75
- 452.5375 MHz - Motorola default channel 73
- 452.7625 MHz - Motorola default channel 76
- 452.8625 MHz - Motorola default channel 77
- 456.1875 MHz - Motorola default channel 78
- 456.2375 MHz - Motorola default channel 79
- 456.2875 MHz - Motorola default channel 80
- 456.3375 MHz - Motorola default channel 81
- 456.4375 MHz - Motorola default channel 82
- 456.5375 MHz - Motorola default channel 83
- 456.6375 MHz - Motorola default channel 84
- 456.8000 MHz - Itinerant, can be paired with 451.800 MHz, maximum power 35 watts
- 456.8125 MHz - Itinerant, can be paired with 451.8125 MHz, maximum power 35 watts
- 457.3125 MHz - Motorola default channel 85
- 457.4125 MHz - Motorola default channel 86
- 457.5125 MHz - Motorola default channel 87
- 457.5250 MHz - Maximum power 2 watts
- 457.5375 MHz - Maximum power 2 watts
- 457.5500 MHz - Maximum power 2 watts
- 457.5625 MHz - Maximum power 2 watts
- 457.5750 MHz - Maximum power 2 watts
- 457.5875 MHz - Maximum power 2 watts
- 457.6000 MHz - Maximum power 2 watts
- 457.6125 MHz - Maximum power 2 watts
- 457.7625 MHz - Motorola default channel 88
- 457.8625 MHz - Motorola default channel 89
- 461.0375 MHz - Motorola default channel 9
- 461.0625 MHz - Motorola default channel 10
- 461.0875 MHz - Motorola default channel 11
- 461.1125 MHz - Motorola default channel 12
- 461.1375 MHz - Motorola default channel 13
- 461.1625 MHz - Motorola default channel 14
- 461.1875 MHz - Motorola default channel 15
- 461.2125 MHz - Motorola default channel 16
- 461.2375 MHz - Motorola default channel 17
- 461.2625 MHz - Motorola default channel 18
- 461.2875 MHz - Motorola default channel 19
- 461.3125 MHz - Motorola default channel 20
- 461.3375 MHz - Motorola default channel 21
- 461.3625 MHz - Motorola default channel 22
- 462.1875 MHz - Motorola default channel 57
- 462.4625 MHz - Motorola default channel 58
- 462.4875 MHz - Motorola default channel 59
- 462.5125 MHz - Motorola default channel 60
- 462.5500 MHz - FRS Channel 15/GMRS 550
- 462.5625 MHz - FRS Channel 1
- 462.5750 MHz - FRS Channel 16/GMRS 575 - Itinerant White Dot
- 462.5875 MHz - FRS Channel 2
- 462.6000 MHz - FRS Channel 17/GMRS 600
- 462.6125 MHz - FRS Channel 3
- 462.6250 MHz - FRS Channel 18/GMRS 625 - Itinerant Black Dot
- 462.6375 MHz - FRS Channel 4
- 462.6500 MHz - FRS Channel 19/GMRS 650
- 462.6625 MHz - FRS Channel 5
- 462.6750 MHz - FRS Channel 20/GMRS 675 - Itinerant Orange Dot
- 462.6875 MHz - FRS Channel 6
- 462.7000 MHz - FRS Channel 21/GMRS 700
- 462.7125 MHz - FRS Channel 7
- 462.7250 MHz - FRS Channel 22/GMRS 725
- 462.7500 MHz - Maximum power 2 watts, shared with paging systems (simplex use only)
- 462.7625 MHz - Maximum power 2 watts, Motorola default channel 23
- 462.7750 MHz - Maximum power 2 watts, shared with paging systems (simplex use only)
- 462.7875 MHz - Maximum power 2 watts, Motorola default channel 24
- 462.8000 MHz - Maximum power 2 watts, shared with paging systems (simplex use only)
- 462.8125 MHz - Maximum power 2 watts, Motorola default channel 25
- 462.8250 MHz - Maximum power 2 watts, shared with paging systems (simplex use only)
- 462.8375 MHz - Maximum power 2 watts, Motorola default channel 26
- 462.8500 MHz - Maximum power 2 watts, shared with paging systems (simplex use only)
- 462.8625 MHz - Maximum power 2 watts, Motorola default channel 27
- 462.8750 MHz - Maximum power 2 watts, shared with paging systems (simplex use only)
- 462.8875 MHz - Maximum power 2 watts, Motorola default channel 28
- 462.9000 MHz - Maximum power 2 watts, shared with paging systems (simplex use only)
- 462.9125 MHz - Maximum power 2 watts, Motorola default channel 29
- 462.9250 MHz - Maximum power 2 watts
- 464.4875 MHz - Itinerant, Motorola default channel 30
- 464.5000 MHz - Itinerant Brown Dot, maximum power 35 watts, Motorola default channel 1
- 464.5125 MHz - Itinerant, Motorola default channel 31
- 464.5375 MHz - Itinerant, Motorola default channel 32
- 464.5500 MHz - Itinerant Yellow Dot, maximum power 35 watts, Motorola default channel 2
- 464.5625 MHz - Itinerant, Motorola default channel 33
- 466.0375 MHz - Motorola default channel 34
- 466.0625 MHz - Motorola default channel 35
- 466.0875 MHz - Motorola default channel 36
- 466.1125 MHz - Motorola default channel 37
- 466.1375 MHz - Motorola default channel 38
- 466.1625 MHz - Motorola default channel 39
- 466.1875 MHz - Motorola default channel 40
- 466.2125 MHz - Motorola default channel 41
- 466.2375 MHz - Motorola default channel 42
- 466.2625 MHz - Motorola default channel 43
- 466.2875 MHz - Motorola default channel 44
- 466.3125 MHz - Motorola default channel 45
- 466.3375 MHz - Motorola default channel 46
- 466.3625 MHz - Motorola default channel 47
- 467.1875 MHz - Motorola default channel 61
- 467.4625 MHz - Motorola default channel 62
- 467.4875 MHz - Motorola default channel 63
- 467.5125 MHz - Motorola default channel 64
- 467.5625 MHz - FRS Channel 8
- 467.5875 MHz - FRS Channel 9
- 467.6125 MHz - FRS Channel 10
- 467.6375 MHz - FRS Channel 11
- 467.6625 MHz - FRS Channel 12
- 467.6875 MHz - FRS Channel 13
- 467.7125 MHz - FRS Channel 14
- 467.7500 MHz - Maximum power 2 watts, shared with low power paging systems - most restaurant "coaster pagers" use this frequency 467.75 MHz
- 467.7625 MHz - J Dot, maximum power 2 watts, Motorola default channel 3
- 467.7750 MHz - Maximum power 2 watts, shared with low power paging systems
- 467.7875 MHz - Maximum power 2 watts, Motorola default channel 48
- 467.8000 MHz - Maximum power 2 watts, shared with low power paging systems
- 467.8125 MHz - K Dot, maximum power 2 watts, Motorola default channel 4
- 467.8250 MHz - Maximum power 2 watts, shared with low power paging systems
- 467.8375 MHz - Maximum power 2 watts, Motorola default channel 49
- 467.8500 MHz - Silver Star, maximum power 2 watts, Motorola default channel 5, shared with low power paging systems
- 467.8625 MHz - Maximum power 2 watts, Motorola default channel 50
- 467.8750 MHz - Gold Star, maximum power 2 watts, Motorola default channel 6
- 467.8875 MHz - Maximum power 2 watts, Motorola default channel 51
- 467.9000 MHz - Red Star, maximum power 2 watts, Motorola default channel 7, shared with low power paging systems
- 467.9125 MHz - Maximum power 2 watts, Motorola default channel 52
- 467.9250 MHz - Blue Star, maximum power 2 watts, Motorola default channel 8
- 469.4875 MHz - Itinerant, Motorola default channel 53
- 469.5000 MHz - Itinerant, can be paired with 464.500 MHz, maximum power 35 watts
- 469.5125 MHz - Itinerant, Motorola default channel 54
- 469.5375 MHz - Itinerant, Motorola default channel 55
- 469.5500 MHz - Itinerant, can be paired with 464.550 MHz, maximum power 35 watts
- 469.5625 MHz - Itinerant, Motorola default channel 56
- The default channels / frequencies for most job site / contractor / construction site crews will vary. Many crews use FRS, MURS or CB for on-site communications, especially if multiple contractors and subcontractors are working together on a large site. The default out of the box factory UHF channels are also often heavily used. These include 464.550 MHz, 464.500 MHz, 467.925 MHz, 467.850 MHz, 467.875 MHz, etc. Most radios default to 67.0 Hz CTCSS tone (PL tone - called “code” in many instances). Other popular CTCSS and DCS tones or codes include 77.0 Hz, 88.5 Hz, 100.0 Hz, 203.5 Hz, 250.3 Hz, and the DCS / DPL codes 023, 025, 026, 032, and 754. Patience, a SDR and/or a scanner or frequency counter with CTCSS / DCS decode capability will yield interesting results. In urban areas it is very common to hear multiple users on the same frequency or channel, but with different CTCSS / DCS (PL / DPL) tones and/or codes in use. This is particularly common on the UHF business itinerants, the FRS channels and the MURS channels. Motorola MURS radios default to 154.570 MHz and 154.600 MHz out of the box. Motorola on-site VHF handhelds default to 151.625 MHz and 151.955 MHz out of the box (see list above for all available channels in both the VHF and UHF configurations. UHF is generally more popular in urban areas while VHF is more commonly used for mobile to mobile communications and in rural areas. However, all three bands can and are used in urban areas.
Default Channels For On-Site Radios
- Motorola CLS/RDX series (UHF)
- Channel 1 - 464.5500 MHz [67.0 Hz PL]
- Channel 2 - 467.9250 MHz [67.0 Hz PL]
- Channel 3 - 467.8500 MHz [67.0 Hz PL]
- Channel 4 - 467.9250 MHz [67.0 Hz PL]
VHF Low Band 25-50 MHz
Note that 30.000 to 87.975 MHz is shared with the SINCGARS VHF FM military land mobile communications system, which operates in either frequency hopping FH mode or single channel SC mode. This is often referred to as "FM" within the military. 30 to 88 MHz in 25 kHz steps. While the military usually stays in the military/government sub-bands (29.80-30.55 MHz, 32-33 MHz, 34-35 MHz, 36-37 MHz, 38-39 MHz, 40-42 MHz, 46.6-47 MHz and 49.6-50 MHz they can also be found in the land mobile sub-bands using 25 kHz steps and 150 Hz CTCSS tone. Military operations in the United States use both FH and SC mode with or without voice encryption. These channels are often referred to as “FM” or “Fox Mike”. For example, 38.500 MHz would be called “FM 38.50” or “38.50 FM”
Under the guidelines of the NTIA, the military may use any frequency within the 30-88 MHz range for training or operational use requirements in the United States, even frequencies outside the standard government/military bands, on a non-interference basis.
Frequencies below 150 MHz may continue to use 20K0F3E or 16K0F3E "wideband" FM mode (also known as 25 kHz bandwidth or 20 kHz bandwidth). In the land mobile / business radio industry the term is often “25 kHz channels” or “25 kHz bandwidth”. VHF low band 25-50 MHz / 29-50 MHz / 30-50 MHz frequencies are not subject to the FCC narrowbanding requirements that are in force for the 150-174 MHz VHF band and 420-470 MHz UHF band. However, some systems may use 12.5 kHz channels 11K3F3E, 11K2F3E or 11K0F3E emissions on these frequencies.
Frequency (MHz) | Remarks/Restrictions on usage |
---|---|
25.020 MHz | Oil companies, oil spill cleanup operations, shared with the HF fixed/mobile band allocation |
25.040 MHz | Oil companies, oil spill cleanup operations |
25.060 MHz | Oil companies, oil spill cleanup operations |
25.080 MHz | Oil companies, oil spill cleanup operations |
25.100 MHz | Oil companies, oil spill cleanup operations |
25.120 MHz | Oil companies, oil spill cleanup operations |
25.140 MHz | Oil companies, oil spill cleanup operations |
25.160 MHz | Oil companies, oil spill cleanup operations |
25.180 MHz | Oil companies, oil spill cleanup operations |
25.200 MHz | Oil companies, oil spill cleanup operations |
25.220 MHz | Oil companies, oil spill cleanup operations |
25.240 MHz | Oil companies, oil spill cleanup operations |
25.260 MHz | Oil companies, oil spill cleanup operations |
25.280 MHz | Oil companies, oil spill cleanup operations |
25.300 MHz | Oil companies, oil spill cleanup operations |
25.320 MHz | Oil companies, oil spill cleanup operations |
27.430 MHz | suffers from freeband CB QRM shared with the HF fixed/mobile band allocation |
27.450 MHz | suffers from freeband CB QRM |
27.470 MHz | suffers from freeband CB QRM |
27.490 MHz | Itinerant use only - suffers from freeband CB QRM |
27.510 MHz | Mobile use only, 2 watts maximum power, suffers from freeband CB QRM |
27.530 MHz | Mobile use only, 2 watts maximum power, suffers from freeband CB QRM |
27.555 MHz | Only in certain areas for forestry/logging, no current licenses, shared with fixed/mobile/government and freeband CB |
27.615 MHz | Only in certain areas for forestry/logging, no current licenses, shared with fixed/mobile/government and freeband CB |
27.635 MHz | Only in certain areas for forestry/logging, no current licenses, shared with fixed/mobile/government and freeband CB |
27.655 MHz | Only in certain areas for forestry/logging, no current licenses, shared with fixed/mobile/government and freeband CB |
27.765 MHz | Only in certain areas for forestry/logging, no current licenses, shared with fixed/mobile/government and freeband CB |
27.860 MHz | Only in certain areas for forestry/logging, no current licenses, shared with fixed/mobile/government and freeband CB |
29.710 MHz | shared with the HF fixed/mobile band allocation |
29.730 MHz | |
29.750 MHz | |
29.770 MHz | |
29.790 MHz | |
30.580 MHz | |
30.600 MHz | |
30.620 MHz | |
30.660 MHz | Geophysical stations only, secondary allocation |
30.680 MHz | |
30.700 MHz | Geophysical stations only, secondary allocation |
30.720 MHz | |
30.740 MHz | Geophysical stations only, secondary allocation |
30.760 MHz | |
30.780 MHz | Geophysical stations only, secondary allocation |
30.800 MHz | |
30.820 MHz | Geophysical stations only, secondary allocation |
30.840 MHz | Mobile use only, 2 watts maximum power |
30.860 MHz | Shared with Public Safety Radio Pool |
30.880 MHz | |
30.900 MHz | Shared with Public Safety Radio Pool |
30.920 MHz | |
30.940 MHz | Shared with Public Safety Radio Pool |
30.960 MHz | |
30.980 MHz | Shared with Public Safety Radio Pool |
31.000 MHz | |
31.020 MHz | Shared with Public Safety Radio Pool |
31.040 MHz | |
31.060 MHz | Shared with Public Safety Radio Pool |
31.080 MHz | |
31.100 MHz | Shared with Public Safety Radio Pool |
31.120 MHz | |
31.140 MHz | Shared with Public Safety Radio Pool |
31.160 MHz | |
31.200 MHz | |
31.240 MHz | |
31.280 MHz | |
31.320 MHz | |
31.360 MHz | |
31.400 MHz | |
31.440 MHz | |
31.480 MHz | |
31.520 MHz | |
31.560 MHz | |
31.600 MHz | |
31.640 MHz | |
31.680 MHz | |
31.720 MHz | |
31.760 MHz | |
31.800 MHz | |
31.840 MHz | |
31.880 MHz | |
31.920 MHz | |
31.960 MHz | |
33.120 MHz | Mobile use only, 2 watts maximum power |
33.140 MHz | Mobile use only, 2 watts maximum power |
33.160 MHz | |
33.180 MHz | |
33.200 MHz | |
33.220 MHz | |
33.240 MHz | |
33.260 MHz | |
33.280 MHz | |
33.300 MHz | |
33.320 MHz | |
33.340 MHz | |
33.360 MHz | |
33.380 MHz | |
33.400 MHz | Mobile use only, 1 watt maximum power |
35.020 MHz | Mobile use only, 2 watts maximum power, shared with Public Safety Radio Pool |
35.040 MHz | Itinerant use only |
35.060 MHz | |
35.080 MHz | |
35.100 MHz | |
35.120 MHz | |
35.160 MHz | |
35.180 MHz | |
35.280 MHz | |
35.320 MHz | |
35.360 MHz | |
35.400 MHz | |
35.440 MHz | |
35.480 MHz | |
35.520 MHz | |
35.700 MHz | |
35.720 MHz | |
35.740 MHz | |
35.760 MHz | |
35.780 MHz | |
35.820 MHz | |
35.840 MHz | |
35.860 MHz | |
35.880 MHz | |
35.900 MHz | |
35.920 MHz | |
35.940 MHz | |
35.960 MHz | |
35.980 MHz | |
36.250 MHz | Oil companies, oil spill cleanup operations, shared with federal/military users, often paired with 41.71 MHz |
37.440 MHz | |
37.460 MHz | |
37.480 MHz | |
37.500 MHz | |
37.520 MHz | |
37.520 MHz | |
37.560 MHz | |
37.580 MHz | |
37.600 MHz | Designated for interconnection of public utility systems |
37.620 MHz | |
37.640 MHz | |
37.660 MHz | |
37.680 MHz | |
37.700 MHz | |
37.720 MHz | |
37.760 MHz | |
37.780 MHz | |
37.800 MHz | |
37.820 MHz | |
37.840 MHz | |
37.860 MHz | |
37.880 MHz | |
40.670 MHz | SNOTEL Weather Telemetry system (Nationwide, data bursts often heard during VHF low band openings) |
41.710 MHz | Oil companies, oil spill cleanup operations, shared with federal/military users, often paired with 36.25 MHz |
42.960 MHz | |
42.980 MHz | Mobile use only, 2 watts maximum power |
43.000 MHz | |
43.020 MHz | |
43.040 MHz | Itinerant use only |
43.060 MHz | |
43.080 MHz | |
43.100 MHz | |
43.120 MHz | |
43.140 MHz | |
43.160 MHz | Mobile use only |
43.180 MHz | |
43.280 MHz | |
43.320 MHz | |
43.360 MHz | |
43.400 MHz | |
43.440 MHz | |
43.480 MHz | |
43.520 MHz | |
43.700 MHz | |
43.720 MHz | shared with low power cordless phones (base - paired with 48.76 MHz) |
43.740 MHz | shared with low power cordless phones (base - paired with 48.84 MHz) |
43.760 MHz | |
43.780 MHz | |
43.820 MHz | shared with low power cordless phones (base - paired with 48.86 MHz) |
43.840 MHz | shared with low power cordless phones (base - paired with 48.92 MHz) |
43.860 MHz | |
43.880 MHz | |
43.900 MHz | |
43.920 MHz | shared with low power cordless phones (base - paired with 49.00 MHz) |
43.940 MHz | |
43.960 MHz | shared with low power cordless phones (base - paired with 49.08 MHz) |
44.000 MHz | |
44.020 MHz | |
44.040 MHz | |
44.060 MHz | |
44.080 MHz | |
44.100 MHz | also used for meteor burst communications (Alaska only) |
44.120 MHz | shared with low power cordless phones (base - paired with 49.10 MHz) |
44.140 MHz | |
44.160 MHz | shared with low power cordless phones (base - paired with 49.16 MHz) |
44.180 MHz | shared with low power cordless phones (base - paired with 49.20 MHz) |
44.200 MHz | shared with low power cordless phones (base - paired with 49.24 MHz) |
44.220 MHz | |
44.240 MHz | |
44.260 MHz | |
44.280 MHz | |
44.300 MHz | |
44.320 MHz | shared with low power cordless phones (base - paired with 49.28 MHz) |
44.340 MHz | |
44.360 MHz | shared with low power cordless phones (base - paired with 49.36 MHz) |
44.380 MHz | |
44.400 MHz | shared with low power cordless phones (base - paired with 49.40 MHz) |
44.420 MHz | nationwide Red Cross disaster response |
44.440 MHz | |
44.460 MHz | shared with low power cordless phones (base - paired with 49.48 MHz) |
44.480 MHz | shared with low power cordless phones (base - paired with 49.50 MHz) |
44.500 MHz | |
44.520 MHz | |
44.540 MHz | |
44.560 MHz | |
44.580 MHz | Several railroads have nationwide allocations |
44.600 MHz | |
47.440 MHz | |
47.480 MHz | |
47.520 MHz | |
47.560 MHz | |
47.600 MHz | |
47.640 MHz | |
47.680 MHz | |
47.700 MHz | |
47.720 MHz | |
47.740 MHz | |
47.760 MHz | |
47.780 MHz | |
47.800 MHz | |
47.820 MHz | |
47.840 MHz | |
47.860 MHz | |
47.880 MHz | |
47.900 MHz | |
47.920 MHz | |
47.940 MHz | |
47.960 MHz | |
47.980 MHz | |
48.000 MHz | |
48.020 MHz | |
48.040 MHz | |
48.060 MHz | |
48.080 MHz | |
48.100 MHz | |
48.120 MHz | |
48.140 MHz | |
48.160 MHz | |
48.180 MHz | |
48.200 MHz | |
48.220 MHz | |
48.240 MHz | |
48.260 MHz | |
48.280 MHz | |
48.300 MHz | |
48.320 MHz | |
48.340 MHz | |
48.360 MHz | |
48.380 MHz | |
48.400 MHz | |
48.420 MHz | |
48.440 MHz | |
48.480 MHz | |
48.500 MHz | |
48.520 MHz | |
48.540 MHz | |
48.560 MHz | |
48.580 MHz | |
48.600 MHz | |
48.620 MHz | |
48.640 MHz | |
48.660 MHz | |
48.680 MHz | |
48.700 MHz | |
48.720 MHz | |
48.740 MHz | |
48.760 MHz | |
48.780 MHz | |
48.800 MHz | |
48.820 MHz | |
48.840 MHz | |
48.860 MHz | |
48.880 MHz | |
48.900 MHz | |
48.920 MHz | |
48.940 MHz | |
48.960 MHz | |
48.980 MHz | |
49.000 MHz | |
49.020 MHz | |
49.040 MHz | |
49.060 MHz | |
49.080 MHz | |
49.100 MHz | |
49.120 MHz | |
49.140 MHz | |
49.160 MHz | |
49.180 MHz | |
49.200 MHz | |
49.220 MHz | |
49.240 MHz | |
49.260 MHz | |
49.280 MHz | |
49.300 MHz | |
49.320 MHz | |
49.340 MHz | |
49.360 MHz | |
49.380 MHz | |
49.400 MHz | |
49.420 MHz | |
49.440 MHz | |
49.480 MHz | |
49.500 MHz | |
49.520 MHz | |
49.540 MHz | |
49.560 MHz | |
49.580 MHz |
VHF Mid Band 72-76 MHz
Fixed usage only, adjacent channeled with 72/75 MHz remote control frequencies. Part FCC Part 90.35, 72-76 MHz are for OPERATIONAL FIXED use only.
Used for point-to-point links (voice and data), call boxes, telemetry, industrial control purposes, radio clock control, etc. The California Highway Patrol hybrid VHF/UHF/700 MHz system uses 72 MHz and 75 MHz, as well as microwave systems, to link remote receiver sites for its 39/42/44/45 MHz VHF lowband statewide land mobile network. Several other systems in various places nationwide operate similar systems using the mid band for linking remote sites and providing back-haul audio link capability. The 72 MHz frequencies are also heavily used for low power point-to-point data links, for example controlling a GPS-based clock system. These systems generally transmit in the 2-10 watt range and cover schools, college campuses, manufacturing sites, etc.
Frequency (MHz) |
---|
72.020 MHz |
72.040 MHz |
72.060 MHz |
72.080 MHz |
72.100 MHz |
72.120 MHz |
72.140 MHz |
72.160 MHz |
72.180 MHz |
72.200 MHz |
72.220 MHz |
72.240 MHz |
72.260 MHz |
72.280 MHz |
72.300 MHz |
72.320 MHz |
72.340 MHz |
72.360 MHz |
72.380 MHz |
72.400 MHz |
72.440 MHz - on-site industrial control use only |
72.480 MHz - on-site industrial control use only |
72.520 MHz - on-site industrial control use only |
72.560 MHz - on-site industrial control use only |
72.600 MHz - on-site industrial control use only |
74.610 MHz - on-site industrial control use only |
74.650 MHz - on-site industrial control use only |
74.670 MHz - on-site industrial control use only |
74.690 MHz - on-site industrial control use only |
74.710 MHz - on-site industrial control use only |
74.730 MHz - on-site industrial control use only |
74.770 MHz - on-site industrial control use only |
74.790 MHz - on-site industrial control use only |
75.210 MHz - on-site industrial control use only |
75.250 MHz - on-site industrial control use only |
75.270 MHz - on-site industrial control use only |
75.290 MHz - on-site industrial control use only |
75.310 MHz - on-site industrial control use only |
75.330 MHz - on-site industrial control use only |
75.370 MHz - on-site industrial control use only |
75.390 MHz - on-site industrial control use only |
75.440 MHz - on-site industrial control use only |
75.480 MHz - on-site industrial control use only |
75.520 MHz - on-site industrial control use only |
75.560 MHz - on-site industrial control use only |
75.600 MHz - on-site industrial control use only |
VHF High Band 150-174 MHz
Frequency (MHz) | Remarks/Restrictions on usage |
---|---|
150.815-150.9875 MHz | 7.5 kHz steps |
151.505-151.805 MHz | 7.5 kHz steps |
151.835-151.865 MHz | 7.5 kHz steps |
151.895-151.925 MHz | 7.5 kHz steps |
151.955-151.985 MHz | 7.5 kHz steps |
152.2625-152.465 MHz | 7.5 kHz steps, old Taxicab Radio Service base/repeater output frequencies (5.26 MHz offset split, often still used for repeater inputs) |
152.8625-153.7375 MHz | 7.5 kHz steps, taken from old Industrial and Oil radio pools |
154.45625 MHz | Operational fixed (SCADA, data links, telemetry, etc) only |
154.46375 MHz | Operational fixed (SCADA, data links, telemetry, etc) only |
154.47125 MHz | Operational fixed (SCADA, data links, telemetry, etc) only |
154.47875 MHz | Operational fixed (SCADA, data links, telemetry, etc) only |
154.4825-154.4975 MHz | 7.5 kHz steps |
154.505 MHz | |
154.515 MHz | |
154.5275 MHz | Mobiles only |
154.540-154.555 MHz | 7.5 kHz steps |
154.585 MHz | |
154.610 MHz | |
154.625 MHz | |
154.640 MHz | |
157.470-157.725 MHz | 7.5 kHz steps, 157.5225 MHz to 157.725 MHz mobile/input freqs from old Taxicab Radio Service |
158.1125-158.460 MHz | 7.5 kHz steps |
159.480-160.2075 MHz | 7.5 kHz steps |
160.215-161.610 MHz | 7.5 kHz steps, Railroad Use Only (AAR channel numbered for standardization between railroads) |
173.20375 MHz | Operational fixed (SCADA, data links, etc) only - narrowband 6.25 kHz channel spacing |
173.210 MHz | Operational fixed (SCADA, data links, etc) only - narrowband 6.25 kHz channel spacing |
173.225-173.375 MHz | 12.5 kHz steps |
173.390 MHz | Operational fixed (SCADA, data links, etc) only - narrowband 6.25 kHz channel spacing |
173.39625 MHz | Operational fixed (SCADA, data links, etc) only - narrowband 6.25 kHz channel spacing |
UHF Band 450-470 MHz
The UHF band follows a standardized repeater pairing system. Mobiles transmit +5 MHz split. For example, a repeater operating on 451.375 MHz has a mobile input of 456.375 MHz. A repeater operating on 461.1125 MHz has a mobile input of 466.1125 MHz. The input frequencies can, and often are, used for simplex operations as well.
Frequency (MHz) | Remarks/Restrictions on usage |
---|---|
451.01875-453.01875 MHz | 6.25 kHz steps |
454.000 MHz | Oil companies, oil spill cleanup operations, also commonly used at racetracks |
456.01875-458.01875 MHz | 6.25 kHz steps |
459.000 MHz | Oil companies, oil spill cleanup operations, also commonly used at racetracks |
462.750-462.9375 MHz | 12.5 kHz steps, shared with local and wide-area paging services |
463.200-465.01875 MHz | 6.25 kHz steps |
465.650-467.5375 MHz | 6.25 kHz steps |
462.750-462.9375 MHz | 12.5 kHz steps, shared with low power paging |
468.200-469.98125 MHz | 6.25 kHz steps |
UHF-T Band 470-512 MHz
Note: This band is only used in certain areas, and in those areas only certain sections of it are used. 470 MHz to 512 MHz is allocated to UHF TV channels 14-20. In larger urban areas, channels are "borrowed" and re-assigned to land mobile. The FCC has mandated that users vacate these frequencies in the near future as part of the transition to Digital Television (DTV) and the general push towards public safety use of the 700 MHz band. Like the 450-470 MHz band, UHF-T has a standardized split. Instead of 5 MHz, its 3 MHz. For example, a repeater operating on 470.6875 MHz has a mobile input frequency of 473.6875 MHz associated with it. As of 2019, the 470-512 MHz band does not require use of narrowband modulation (NFM, DMR, NXDN, P25, etc) emissions. However, many cities where the UHF-T band is use suffer from extreme land mobile radio channel congestion and therefore use narrowband modes anyway. A good example of this would be the FDNY Fire and EMS dispatch systems on 482 MHz and their associated Motorola Type II trunking system that operates in the 482 MHz and 483 MHz region with the 6.25 kHz channel step.
In some areas, all public safety and a large amount of business radio operates in the 470-512 MHz T-band or TV-band. These cities (and their associated metropolitan areas) include: Boston, MA, Chicago, IL, Cleveland, OH, Dallas/Fort Worth, TX, Detroit, MI, Houston, TX, Los Angeles, CA, Miami, FL, New York, NY/N.E. New Jersey, Philadelphia, PA, San Francisco/Oakland, CA and the Washington-Baltimore metro area.
Metro Area | Frequency Range(MHz) | TV Channel(s) Affected |
---|---|---|
Boston, MA | 470-476 MHz, 482-488 MHz | TV Channels 14, 16 |
Chicago, IL | 470-482 MHz | TV Channels 14, 15 |
Cleveland, OH | 470-482 MHz | TV Channels 14, 15 |
Dallas/Fort Worth, TX | 482-488 MHz | TV Channels 16 |
Detroit, MI | 476-488 MHz | TV Channels 15, 16 |
Houston, TX | 488-494 MHz | TV Channel 16 |
Los Angeles, CA | 470-476 MHz, 482-488 MHz, 506-512 MHz | TV Channels 14, 16, 20 |
Miami, FL | 470-476 MHz | TV Channel 14 |
New York City/NE New Jersey | 470-488 MHz | TV Channels 14, 15, 16 |
Philadelphia, PA | 500-512 MHz | TV Channels 19, 20 |
Pittsburgh, PA | 470-476 MHz, 494-500 MHz | TV Channels 14, 18 |
San Francisco, CA | 482-494 MHz | TV Channels 16, 17 |
Washington-Baltimore | 488-500 MHz | TV Channels 17, 18 |
800 MHz/900 MHz band 809-940 MHz
Most of the systems in these bands are trunked.
Frequency (MHz) | Remarks/Restrictions on usage |
---|---|
809-824 MHz | Mobiles, 6.25 kHz/12.5 kHz steps |
854-869 MHz | Base/Repeaters or Mobiles, 6.25 kHz/12.5 kHz steps |
854-869 MHz | Base/Repeaters or Mobiles, 6.25 kHz/12.5 kHz steps |
896-901 MHz | Mobiles, 6.25 kHz/12.5 kHz steps |
902-928 MHz | 900 MHz ISM band, subject to restrictions of this band |
935-940 MHz | Base/Repeaters or Mobiles, 6.25 kHz/12.5 kHz steps |
Higher Bands - Above 940 MHz
Frequency (MHz) | Remarks/Restrictions on usage |
---|---|
1427-1432 MHz | Special restrictions, only available in certain areas, digital modes, see 90.259 |
2450-2500 MHz | 2.4 GHz ISM band, subject to restrictions of this band |
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