The original source of this article is RadioMaster Reports. TYT GMRS45 - Quanzhou TYT Electronics Co. Ltd. GMRS45 UHF Analog GMRS Mobile Transceiver. For many events, frequencies that are not in use in the particular area where the event will occur are obtained from a frequency coordinator well in advance. Different regions of the US use different sub-bands, as we saw in the table above. Some licenses will be authorized for 11K0F3E, 16K0F3E and 20K0F3E emissions. For more about operating on these bands, please see the following pages: VHF Spectrum Release; 50MHz Band: 50.0 - 52.0MHz; 70MHz Band: 70.0 - 70.5MHz; 144MHz Band: 144.0 - 146.0MHz; 432MHz Band: 430.0 - 440.0 MHz; Technical consideration of these propagation modes are discussed in more detail under Technical Topics. European license free 446 MHz PMR446 specification version. The largest users of the 470-512 MHz UHF-T band include massive public safety radio systems in several massive metro areas, including New York, Los Angeles, Chicago and numerous others. You can use all amateur frequencies, including 1.8 MHz through 29.6 MHz (HF), 50 MHz, 144 MHz (VHF) or 440 MHz (UHF). These VHF/UHF services include FRS and GMRS, MURS and CB. Frequency. FRS/GMRS Shared. An examplEmail: An eligible applicant may use the services of any coordinator certified for the Industrial/Business Pool. VFO B default frequency 470.6250 MHz / channel 127 "reset", Baofeng UV-5R "Upgrade Version" or "144-148 MHz 420-450 MHz" Variant. For frequencies in the 470-512 MHz band, applicants may use any frequency coordinator. ), DMR (7K60FXE, 7K60FXW, 7K60F7W, etc), IDAS or NXDN NEXEDGE (4K00F1E, 8K30F1E, 8K30F7W, etc.) $69.99. Voice Prompted Battery Alert & Channel Selection and has a External Speaker Jack. To calculate the wavelength (in cms) divide 30,000 by the frequency (in MHz). Radio models include, but are not limited to: R1, RDM-DB, M1, RDH-X, V3, RM60, RH5R, RDH16, as well as Icom, Motorola, Kenwood . CTCSS and DCS (PL and DPL) are user-programmable for each channel. LMR frequencies are site-specific - meaning they can only be used within a certain geographical area or "pool". Now lets consider a hypothetical extreme case using a high-power BDA producing 20 Watts per channel, or 43dBm, and instead lets use a splitter with only a 140dBc PIM rating. This rebanding process has nothing to do with "mandatory narrowbanding," which is a require-ment that applies only to VHF and UHF spectrum users. . They are reserved for commercial use by companies and educational, religious, and health institutions. VFO default frequency 470.6250 MHz / channel 127 "reset", Baofeng UV-82HP Pofung UV-82HP and clones, WLN KD-C1 UHF 16 channel walkie talkie and clones, Motorola CLS1110, CLS1410, XTN UHF series frequency / channel ID list, Motorola VL50 UHF series, Motorola Spirit UHF frequency / channel ID list, Motorola XTN VHF series frequency / channel ID list, Motorola CLP UHF series frequency / channel ID list, Motorola RDX Series, RDU4100 UHF series frequency / channel ID list, Motorola RDX Series, RDV5100, RMV2050 VHF series frequency / channel ID list, Kenwood TK-2200L VHF series frequency / channel ID list These radios do not require an application or license but there are limitations on power output and antenna height above ground level. GMRS requires users to be 18 years or older and have passed their exam. Multiple Address - Allows you to operate on several different frequencies in the same geographical area or "pool". 50 CTCSS and 210 DCS codes available for a total of 260 different CTCSS and DCS tones/codes. Not all frequencies are available for business users. Yes, you do. BRS: Business Radio Service is one of the two types of business band radio services in USA (FCC Part 90). Three FRS/GMRS frequencies below are listed as "color dots". The most important thing for people to understand is that the use of any kind of "bubble pack" type radios will compromise your legal rights in case of an accident involving other types of radios or because the person who has the commercial-type equipment may be held liable for damages because they should have had a license. - 3.75 kHz offset, Note odd channel spacing - 7.5 kHz from 154.4975 MHz, 10 kHz from 154.5150 MHz, Fixed point-to-point data (SCADA, telemetry, etc.) Businesses will often simply buy radios and use them without bothering with licensing or frequency coordination. Customers are also able to praise or critique their experience directly through social media. Other brand names include Arcshell AR-6 Walkie Talkie, TIDRADIO UHF walkie talkies with USB charging capability. The UHF/VHF bands were the first designated public safety bands. list: Note: there are other non-standard CTCSS (PL) tones available, including 69.3 Hz PL (69.4 Hz PL in some radios), 159.8 Hz PL, 165.5 Hz PL, 171.3 Hz PL, 177.3 Hz PL, 183.5 Hz PL, 189.9 Hz PL, 196.6 Hz PL, 199.5 Hz PL, 206.5 Hz PL, 229.1 Hz PL and 254.1 Hz PL. QT/DQT (W/N) -- 0.70.1KHz/0.40.1KHz In this scenario, we would require the first splitter in the system to have at least a -155dBc PIM rating to minimize IM potential. Frequency Band(s): VHF. For data operations, licensees must use equipment capable of supporting a minimum data rate of 4800 bits per second per 6.25 kHz of channel bandwidth. 462.5625. Retevis RT-27 RT-27 RT27IC FRS 16 channel All licensees operating under this authority must comply with the requirements and limitations set forth in this section. Here is an example of a fixed mount. User may change power levels on channels 1-7 and 15-22. Larger stores are individually licensed. Before you begin the license process, you must have detailed information about your radio system to provide to the frequency coordinator, such as: You must also provide the following information about your antenna: Frequencies in the 470-512 MHz band are shared with UHF-TV channels 14-20 and are only available in 11 cities. United States, provides for two-way personal communications within the frequency range allows users to transmit on four frequencies in the UHF band (462 MHz & 467 MHz) with up to 50 watts of power. The following is an example of IM study that reveals a 3rd order IM product that falls directly on frequency to the receive frequency 458.0125MHz. The frequencies given in the table are for (most) digital . The industrial and business frequencies, sometimes also known as "business band radio" and the eligibility requirements are listed in 47CFR90.35. Low-band UHF: 450-806 MHz. Retevis currently markets BF-888S RT-1 family handheld radios programmed for the various UHF and VHF personal radio services, including the 149 MHz Freenet service in Germany, the VHF CB MURS service and UHF FRS and GMRS services in the USA, the Chinese 409 MHz license free walkie talkie service, 245 MHz VHF CB service in Thailand, the 325 MHz SRRS service in the Philippines, the 142 MHz VHF CB service in Indonesia, the 350 MHz Short Range Radio service in India, the European standardized PMR446 services - both traditional 8-channel/16-channel analog and 16-channel/32-channel digital, the SRD860 860 MHz service, the very low power 49 MHz and LPD433 services and numerous others such as Japan's Specified Low Power Radio, the Nordic (Sweden/Norway) KDR444, South Korean UHF 448 MHz Personal Radio, the Australian 476 MHz/477 MHzUHF CB service, etc. My first car was an 1987 Honda CRX. Default setting carrier squelch, but users may easily set the CTCSS or DCS setting they like per channel. The Motorola RMV2050 VHF radio uses the same 27 VHF business frequency programming plan as the Motorola RDX series VHF radios. For the purposes of land mobile, 2-25 MHz is considered "HF". The table below lists the separation for each band and its general use. May be out dated as newer versions are shipped. Maximum deviation(W/N) -- 5KHz/2.5KHz 470 MHz to 512 MHz is allocated to UHF TV channels 14-20 - hence the UHF-T or UHF-TV designation. To ensure our customers are operating Business Band Radios in compliance of FCC Rules and Regulations, Rugged Radios has licensed: 10 nation-wide commercial band frequencies (35 Watt) 60 area-specific commercial band frequencies (60-Watt) These frequencies/channels are available to transmit for business or professional race use. These radios operate with 50 kHz channel spacing and 8-level FSK digital FHSS 902-928 MHz band (channels start at 902.525 MHz and continue to 927.475 MHz, 525 kHz from band edges for a total of 500 available channels at 50 kHz channel spacing), in compliance with Part 15 of the FCC rules - specifically 47 CFR 15.247. 10K4F3E emission on FRS channels 1-7, 10K6F3E emission on channels 8-15 and repeater inputs. In other words, voice equipment operating on a channel bandwidth of up to 25 kHz will be permitted if the equipment supports two or more voice channels. 12.5 kHz channel steps. the military services may employ frequencies in the bands 3500-4000, 20010-22000, and 22855-24990 kHz on a secondary basis to the services of stations . The 800 MHz Public Safety band has a fixed guard-band of 35MHz (lowest TX to highest RX: 851MHz-816MHz=35MHz). The term simplex in this context means the BDA is configured with separate uplink and downlink paths, i.e., no internal duplexing/combining of bands. In areas where interference is an issue, stores will use one of the other MURS frequencies and/or CTCSS or DCS tones/codes as appropriate. These radios operate with 50 kHz channel spacing and 8-level FSK digital FHSS, CTCSS tones and DCS codes for popular UHF and VHF business frequencies. Kenwood documentation refers to the frequency list as the "table" so the frequency is "Table Number", but will be listed as freq ID number here. WalMart and Sam's Club will often use different CTCSS or DCS tones/codes, especially when their store is part of a larger shopping center with the potential for interference. Like the other Retevis 16 channel UHF radios, it includes the 462.6250 127.3 Hz, 462.7250 136.5 Hz BF-888S default frequencies as well as Retevis-specific frequency/tone combinations - namely 462.5625 with 67.0 Hz, 462.5875 with 118.8 Hz, 462.6125 with 127.3 Hz, 462.6375 with 131.8 Hz, 462.6625 with 136.5 Hz, 462.6875 with 141.3 Hz, 462.7125 with 146.2 Hz, 462.550 with 123.0 Hz and so on. FCC testing indicates emission 10K2F3E. Retevis is now offering a 900 MHz license free ISM radio the Retevis RT10. You need a license to use all the business band frequencies, including 151.625 MHz, 151.505 MHz, 158.400 MHz, 151.955 MHz, 151.700 MHz, 151.760 MHz, 464.550 MHz, 464.500 MHz, 467.925 MHz, 467.875 MHz, 467.900 MHz, etc. This appears to be a firmware glitch, likely the FCC legal (or "FCC legal") version that only permits the end user to transmit within the 144-148 MHz 2 meter amateur band and the 420-450 MHz 70cm amateur band. 220.0025 MHz, 220.0075 MHz, 220.0125 MHz, 220.0175 MHz, 220.02225 MHz, up to 221.9925 MHz, 221.9975 MHz. TheFCC details the specific rules for Marine Radio, one of which is that the maximum is 25 watts. Never try to cross band two repeaters. See the links below the table and at the bottom of this page for detailed information. TIDRADIO Two Way Radio Long Range Walkie Talkies for Adults with USB Wall Charger Air Acoustic Earpiece 2 Pack. 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. 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. Retevis RT-27V MURS VHF Transmit CTCSS is T-CTCS and receive CTCSS is R-CTCS. 467.8125 MHz - 205 DPL Common Itinerant and Low Power Business Frequencies, Default Motorola Kenwood Vertex TYT Baofeng Pofung BTECH Hytera Retevis Blackbox Radios Factory Out Of The Box Channels Frequencies Settings, Common On-Site Retail Store Frequencies Channel Plans, Nationwide Public Safety Interoperability Frequencies, 72/75 MHz remote control frequencies under Part 95, Motorola DTR410, DTR550, DTR650, DTR600 and DTR700 radios. GTOWER - Guyed structure used for communication purposes. (470-698 MHz) "Lower 700 MHz" (698-746 MHz) REALLOCATED TV CHANNELS 60-69 - "Upper 700 MHz" (746-806 MHz . See also: commonly used CTCSS tones and DCS codes for popular UHF and VHF business frequencies, popular retail store frequencies and tones, as well as popular and default FRS/GMRS CTCSS tones codes privacy codes listing. A few models are listed below. The following provides samples of the corresponding new ITU designators for the most commonly used emission designators: If you have questions about your emission designator, you may want to contact your radio vendor or manufacturer. If low order IM products are revealed in the study, then serious consideration should be given to removing the offending frequencies from the mix, or at least notify customer of potential for harmful IM to limit liability. On channels 1 through 22, the user may set any one of the 38 CTCSS codes or 104 DCS codes. 11K0F3E emission per FCC authorization documentation. Comes pre-programmed with 14 UHF business band frequencies and 2 VHF business (MURS) frequencies. The worlds busiest airports have tens of millions of passengers passing through in arrivals, departures and transit every year. It's a VHF two-way radio that comes equipped with 27 exclusive business frequencies, easy-to-use programming software and other . One of the biggest pros of UHF radios is that they do a much better job of penetrating barriers in urban locations, like concrete, steel, and wood. Amatuer Radio (also called Ham Radio Operators) - This requires a license to operate. This is most evident around 150.775 MHz, 150.7975 MHz, 150.800 MHz, 150.805 MHz, 150.8125 MHz, 150.815 MHz, the 154.4525 MHz, 154.45625 MHz, 154.46375 MHz, 154.47125 MHz, 154.47875 MHz, 154.4825 MHz, 154.490 MHz, 154.4975 MHz, 154.505 MHz, 154.515 MHz, 154.5275 MHz, 154.53375 MHz, 154.540 MHz, 154.5475 MHz, 154.555 MHz, 154.570 MHz, 154.585 MHz, 154.600 MHz, 154.610 MHz, and 154.640 MHz portion, the overlap between the VHF marine band starting at 156.000 MHz (public safety allocations continue from 155.9925 MHz in 7.5 kHz steps up through 156.240 MHz, which land mobile allocations overlapping marine channels 00, 01, 02, 03, 04, 60, 61, 62, 63 and 64. Vhf Transmit CTCSS is R-CTCS they can only be used within a certain geographical area or `` pool '',! Vhf Radio uses the same geographical area or `` pool '' in,... Levels on channels 1-7 and 15-22 1 through 22, the user may set one. Transmit CTCSS is T-CTCS and receive CTCSS is R-CTCS Radio Long Range talkies! 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