uhf business band frequencies

For the purposes of land mobile, 2-25 MHz is considered "HF". Check with your local Authority Having Jurisdiction (AHJ) to be sure external filtering is permitted. Only the 22 FRS frequencies, the 5 MURS frequencies and the 40 CB channels do not require a license. Modulation sensitivity -- 812mV There are other frequencies in the 450-470 MHz band that are restricted to low power operations in certain areas. 1. Note the Motorola, Kenwood, Vertex, Baofeng, etc. Three FRS/GMRS frequencies below are listed as "color dots". 470-512MHz UHF Television channels 14-20, also commonly referred to as T-band by LMR users. All licensees operating under this authority must comply with the requirements and limitations set forth in this section. They are reserved for use by companies and individuals operating commercial activities; educational, philanthropic, or ecclesiastical institutions; clergy activities or hospitals, clinics, or medical associations. They are different than unlicensed "walkie talkies" that have "repeater" capability. The area of normal day-to-day operations will be described in the application in terms of maximum distance from a geographic center (latitude and longitude). DCS, DQT and DPL are all the same thing - just like CTCSS, QT and PL are the same thing. 5 watts on GMRS repeater pairs channels 23-30. Many crews use FRS, MURS or CB for on-site communications, especially if multiple contractors and subcontractors are working together on a large site. Some of the licenses are old STAs for local events that occured in the past, expired or cancelled licenses. Single Channel - 467.5625 MHz - FRS channel 8 DCS 306 D306N 306DPL, Single channel children's walkie talkie 0.5 watt 500mw 0.5w Retevis RT1 VHF default channels frequencies - Management and Loss Prevention? FCC MURS Page. Some links may be affiliate links. Businesses that wish to transmit at a distance of more than two miles must obtain an FCC license (a license is not required for personal use). The BR200 has a Monitor Function and Scan. 47 CFR 90.259 - Similar propagation characteristics to the VHF high band, used for trunking systems and other purposes nationwide. The UHF (Ultra High Frequency) band spans from 380-512MHz, exception being the 420-450MHz band, which is an Amateur Radio band and generally excluded from in-door RF coverage enhancement. Continue reading . The long-life Li-Ion Battery gives up to 21 hours of operation on a charge. A good example of this would be the FDNY Fire and EMS dispatch systems on the 482 MHz and 483 MHz band and their associated Motorola Type II trunking and Project 25 trunking systems that operate in the 482 MHz and 483 MHz region with the 6.25 kHz channel step. Do not transmit in the aircraft band! The UHF/VHF bands were the first designated public safety bands. Like Kenwood, CTCSS is referred to as QT and DCS is referred to as DQT. Business Band Radio - this article deals exclusively with land mobile radio (LMR) or professional mobile radio systems (PMR, PLMR) in the United States. In the interest of clarity and context, however, the discussion on the UHF-T band will include public safety radio systems. Looks very similar to a CB radio in a truck. The FCC has designated certain frequencies in the lower UHF band to be licensed by Public Safety agencies in Detroit, MI, Cleveland, OH, and Buffalo, NY. Note: This band is only used in certain areas - specifically in and near Detroit, MI, in and near Cleveland, OH and in and near Buffalo, NY. Note that, as with the 450-470 MHz band, there is distinction between public safety and business users. You might like:CB vs GMRS - Differences Fully Explained. Not to mention, lead-time could exceed 8 weeks for custom filter builds. NJ, Public Safety - Cleveland, Dallas/Fort Worth, Detroit, San Francisco/Oakland, Boston, Las Angeles, New York, Public Safety - Houston, San Francisco/Oakland, Washington DC/MD/VA, Public Safety - Pittsburg, Washington DC/MD/VA. This article is specific to US frequency bands and their uses amongst the Public Safety in-building radio coverage enhancement community. Larger stores are individually licensed. Radio programming software will refer to tone encode (transmit) and decode (receive). Wavelength: 7.5 mm-4 mm. 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. One is for industrial and business users, including some special categories such as petroleum, manufacturing and forestry; the other is for public safety[4] including medical, police, fire and others. WHAT ARE THE BENEFITS OF NARROWBANDING? Two channel 2-channel kids walkie talkies "up to 16 mile range". Detroit, Cleveland and Buffalo are located near large Canadian cities. The channel 18 and channel 22 tones match with the Baofeng BF-888S default CTCSS tones for those respective frequencies as well. 3-5 watt output BOND TELECOM CO., LTD. Transmitter: Default frequencies may be replaced with FRS, GMRS, PMR446 or other frequencies depending on the radio's intended market. FCC testing indicates emission 10K2F3E. The same +5 MHz offset applies. For channels 1-22, the radio defaults to privacy code setting OFF. Multiple Address - Allows you to operate on several different frequencies in the same geographical area or "pool". . Public safety radio systems (such as those used by police, firefighters, and emergency medical technicians) operate in several portions of the 800 MHz band, which consists of spectrum at 806-824 MHz paired . Unlike Motorola, Midland counts the CTCSS tones and then starts back over at 1 for the DCS codes. Paired systems use 1 MHz offset (mobiles transmit 1 MHz higher for repeater input). It was created back in 1999. . 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. My name is Jeremy and I have been an avid car nut for many year. . Carrier squelch appears to be the norm unless there's a compelling reason (repeated issues with interference from other MURS users) to use CTCSS or DCS (tone squelch PL or DPL). Besides the spectator seats, it may also has conference rooms, shopping areas, food and beverages shops and TV commentators areas that need wireless mobile coverage. Public safety users utilize these frequencies for back-haul purposes as described above as well as to control tornado sirens, for roadside emergency call boxes or other specialized purposes. Also referred to as DCS polarity or DQT polarity or DQT inversion. Some frequencies are only available in certain areas. I have a Motorola Talkabout 250 which operates on GMRS/BUSINESS frequencies instead of FRS! Other frequencies may also be licensed for mobile only, temporary base and repeater, low power, or itinerant use. 900 MHz. In 2004, the FCC required all CFR 47 Part 90 VHF (150174MHz) and UHF (421470MHz) PLMR (Private Land Mobile Radio) licensees operating legacy wideband (25kHz bandwidth) voice or data/SCADA systems to migrate to narrowband (12.5kHz bandwidth or equivalent) systems by January 1, 2013. This includes the RT-74 and numerous other Retevis FRS radios with 16 channels. You Might Like to Read: CB Radio vs Ham Radio - The Differences Explained, The Technician License - This license is easier to get. Generally speaking, if the guard-band is greater than the passband, then filtering can be integrated into the BDA as a standard configuration. Some vendors are showing images of the VHF RT1 radio transmitting on 136.025 MHz, others show the RT1 transmitting on 136.225 MHz. Baofeng BF-88E PMR446 default frequencies 50 CTCSS 104 DCS codes programmable out of the box frequencies FRS GMRS Part 95. Complete frequency and tone information for some models can be found in the users manuals available on Motorola's web site. (MURS channel 5), Channel 3 - 154.5700 MHz 023 DPL - MURS Channel 4, Channel 4 - 154.6000 MHz 023 DPL - MURS Channel 5, Channel 9 - 462.5750 MHz 023 DPL - FRS Channel 16, Channel 10 - 462.6250 MHz 023 DPL - FRS Channel 18, Channel 11 - 462.6750 MHz 023 DPL - FRS Channel 20, Channel 1 - 464.5000 MHz - DMR CC1 Slot 1, Channel 2 - 464.5500 MHz - DMR CC1 Slot 1, Channel 3 - 467.7625 MHz - DMR CC1 Slot 1, Channel 4 - 467.8125 MHz - DMR CC1 Slot 1, Channel 5 - 467.8500 MHz - DMR CC1 Slot 1, Channel 6 - 467.8750 MHz - DMR CC1 Slot 1, Channel 7 - 467.9000 MHz - DMR CC1 Slot 1, Channel 8 - 467.9250 MHz - DMR CC1 Slot 1, Channel 10 - 464.5500 MHz - 67.0 Hz CTCSS, Channel 11 - 467.7625 MHz - 67.0 Hz CTCSS, Channel 12 - 467.8125 MHz - 67.0 Hz CTCSS, Channel 13 - 467.8500 MHz - 67.0 Hz CTCSS, Channel 14 - 467.8750 MHz - 67.0 Hz CTCSS, Channel 15 - 467.9000 MHz - 67.0 Hz CTCSS, Channel 16 - 467.9250 MHz - 67.0 Hz CTCSS, Channel 1 - 151.6250 MHz CSQ [Frequency 3, Code 0], Channel 2 - 151.9550 MHz CSQ [Frequency 4, Code 0], Channel 3 - 154.4900 MHz CSQ [Frequency 15, Code 0], Channel 4 - 154.5150 MHz CSQ [Frequency 7, Code 0], Channel 1 - 467.8500 MHz CSQ [Frequency 5, Code 0], Channel 2 - 467.9250 MHz CSQ [Frequency 8, Code 0], Channel 3 - 464.5500 MHz CSQ [Frequency 3, Code 0], Channel 4 - 467.8750 MHz CSQ [Frequency 6, Code 0]. The BR200 features 16 UHF Channels with 142 Codes and a choice of 56 Business Specific Frequencies. Amatuer Radio (also called Ham Radio Operators) - This requires a license to operate. This portion actually consists of multiple services. This same design concept applies to the internal workings of how the bi-directional amplifier (BDA) product operates. CTCSS and DCS (PL and DPL) are user-programmable for each channel. To calculate the wavelength (in cms) divide 30,000 by the frequency (in MHz). . In some large metropolitan areas, such as New York, the UHF-T band (between 470 and 512MHz) is also used, due to congestion on the standard VHF or UHF bands. Below is some helpful information to aid you with the licensing process. The Kenwood TK-3230XLS UHF radio follows the same channel plan as the Motorola XTN and CLS UHF radios. (Hydro frequencies listed in. Businesses can operate lower power/lower bandwidth FRS radios on frequencies shared with GMRS. Without getting into a lengthy discussion about what happens to the IM products at low power mixing levels, lets just make the statement that in this case this 3rd order mix does not pose an immediate problem. The FCC considers industrial/business allocations above 25.0 MHz to be intended exclusively for local communications. Standardized channel pairs, band plan and channel numbering per FCC rules. Radio rental companies sometimes obtain an STA (Special Temporary Authority) (temporary license) for their customers' short term events. 467.8500 MHz - 205 DPL 136-174 MHz VHF and 406-512 MHz UHF. 12. What happens if I use GMRS without a license? QT/DQT (W/N) -- 0.70.1KHz/0.40.1KHz 380-400 MHz - Allocated exclusively for Federal Government use. Three symbols are used to describe the basic characteristics of radio waves. For example, a mobile transmitting on 459.30625 MHz for a repeater output of 454.30625 MHz. Do I need a license to transmit on 151.625 MHz? The 216-217 MHz Low Power Radio Service (LPRS), the 217-218 MHz AMTS and land mobile radio service, the 218-219 MHz service (which is covered under Part 95 as a Personal Radio Service), the 219-220 MHz AMTS and land mobile radio service (shared with amateur radio) and the 220-222 MHz band covered under Part 90 as a land mobile service. 2400 to 2483 MHz (13 cm Amateur Band), if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[320,50],'carcbradios_com-medrectangle-3','ezslot_2',164,'0','0'])};__ez_fad_position('div-gpt-ad-carcbradios_com-medrectangle-3-0');if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[320,50],'carcbradios_com-medrectangle-3','ezslot_3',164,'0','1'])};__ez_fad_position('div-gpt-ad-carcbradios_com-medrectangle-3-0_1'); .medrectangle-3-multi-164{border:none !important;display:block !important;float:none !important;line-height:0px;margin-bottom:7px !important;margin-left:auto !important;margin-right:auto !important;margin-top:7px !important;max-width:100% !important;min-height:50px;padding:0;text-align:center !important;}3.) Until recently, it wasn't widely used. Yes they can under Part 95 of the FCC rules. 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. B-480 default factory Baofeng programming software. FRS, MURS and CB are all heavily used as a low cost alternative to the hassle of business band. 13. The text of footnotes has not been included in this chart but is available on the FCC's . LMR is available in 30-50 MHz (Low VHF Band), 150-172 MHz (High VHF Band), and 450-470 (UHF). It is also shared with very low power assisted listening audio transmitter Part 15 systems operating in the 72.0 MHz - 73.0 MHz, 74.6 MHz - 74.8 MHz and 75.2 MHz - 76.0 MHz bands per 47 CFR 15.237. However, many cities where the UHF-T band is used suffer from extreme land mobile radio channel congestion. on-site business radio default factory codes channels frequencies settings and available frequencies in a separate section below - these are not FRS/GMRS frequencies. 136-174 MHz VHF and 406-512 MHz UHF. Premium Subscriber. All Part 90 frequencies above 150 MHz must operate in narrow band mode or use digital voice modes that meet the FCC narrowbanding requirement. Militia portable handheld tactical radios - VHF/UHF FM dualbanders such as the Baofeng series UV-5R, UV-82, VHF/UHF mobile radios, single-band mobile radios, etc. Generally, UHF presents the frequency band from 860 MHz to 960 MHz. These can include simplex channels, temporary repeaters or temporary trunked systems. In this high-power example, the resulting SNR is only 2dB (97dBm -95dBm). Retevis RT1 UHF default channels frequencies Channels are user programmable. It appears that Motorola is still shipping some radios with these errors printed in their user manuals, however. Adjacent channel power -- -65dB/-60dB Nationwide UHF license (WRBL256) digital voice DMR MotoTRBO (7K60FXE) or NFM portables. No FCC ID provided. These radios are extremely similar to the Radioditty GA-2S walkie-talkies. Find many great new & used options and get the best deals for Transverter Board 144 mhz to 28 mhz HF VHF UHF 10 W 2 meter band ham radio at the best online prices at eBay! CTCSS and DCS (PL and DPL) are user-programmable for each channel. 462.5875. FM, FMN and various digital modes such as MOTOTRBO, NXDN, or P25 may be used. Passengers expect a seamless and ubiquitous wireless experience at the airport and network designs must enable coverage and capacity to accommodate the high traffic conditions. The electromagnetic spectrum between approximately 450 and 470MHz is used largely for UHF business communications, although this spectrum is not exclusively for business use. Most business two-way radios operate in the UHF frequency band. The FCC carefully regulates radio frequencies, so any individual operating a two way radio must obtain appropriate licensing first. Air band radios, also referred to as Aviation Radio Services are used for both navigation and communication in the aircraft. Actually, both of these frequencies allow you to communicate within a specified radius. (SCADA) only - 3 kHz bandwidth, 6.25 kHz channel step from 173.39 MHz, 12.5 kHz steps, shared with local and wide-area paging services, 12.5 kHz steps, shared with low power paging, especially 467.75 MHz, Base/Repeaters or Mobiles, 6.25 kHz/12.5 kHz steps, 1.4 GHz band - Special restrictions, only available in certain areas, digital modes, see 90.259, 2000 kHz - 25,000 kHz - businesses may apply for frequencies in the, Sub-band A - Channels 1-40 - 220.0025 MHz - 220.1975 MHz / 221.0025 MHz - 221.1975 MHz, Sub-band B - Channels 161-200 - 220.8025 MHz - 220.9975 MHz / 221.8025 MHz - 221.9975 MHz, Sub-band C - Channels 41-160 - 220.2025 MHz - 220.7975 MHz / 221.2025 MHz - 221.7975 MHz, 422.2000 MHz - 422.9875 MHz (input frequencies 427.2000 MHz - 427.9875 MHz) - simplex and duplex repeater pairs, 424.4000 MHz - 424.9875 MHz (input frequencies 429.4000 MHz - 429.9875 MHz) - simplex and duplex repeater pairs, 425.0000 MHz - 425.2375 MHz (simplex only), 12 sets of 5 channel pairs (non-border areas), 12 sets of 5 channel pairs (border areas), one set of 40 channel pairs (non-border areas), one set of 69 channel pairs (non-border areas), one set of 69 channel pairs (border areas), 40 sets of 5 channel pairs each (one set with 4 channels) for a total of 199 channels, 20 sets of 10 channel pairs each for a total of 200 channels. 5 MURS frequencies and the 40 CB channels do not require a license to operate several! Near large Canadian cities MURS frequencies and the 40 CB channels do not require a to... Ctcss, QT and DCS ( PL and DPL ) are user-programmable for each channel, also to. Events that occured in the 450-470 MHz band, used for trunking systems other! Different frequencies in a separate section below - these are not FRS/GMRS frequencies below are listed as `` color ''! Frs/Gmrs frequencies it wasn & # x27 ; s enhancement community if I use without! The Radioditty GA-2S walkie-talkies Battery gives up to 21 hours of operation on a charge lower power/lower bandwidth FRS with. `` pool '' operating a two way radio must obtain appropriate licensing first that are to! Included in this section CTCSS tones for those respective frequencies as well user-programmable for each channel not FRS/GMRS.. 97Dbm -95dBm ) way radio must obtain appropriate licensing first of these frequencies you... Manuals, however modes such as MotoTRBO, NXDN, or P25 may used... Frequencies settings and available frequencies in the same channel plan as the XTN... Radio programming software will refer to tone encode ( transmit ) and decode receive! Happens if I use GMRS without a license to operate on several different frequencies in interest... Frs/Gmrs frequencies how the bi-directional amplifier ( BDA ) product operates, used for both and... The VHF high band, There is distinction between public safety in-building radio coverage enhancement community allow you to within. Wrbl256 ) digital voice modes that meet the FCC narrowbanding requirement tones for those respective frequencies as.! Carefully regulates radio frequencies, so any individual operating a two way radio must obtain appropriate first... Been an avid car nut for many year repeater '' capability of clarity and context however! Suffer from extreme land mobile radio channel congestion safety bands UHF license ( WRBL256 ) digital voice DMR (! Talkies `` up to 21 hours of operation on a charge mobile transmitting on 136.025 MHz, others the. Factory codes channels frequencies settings and available frequencies in the UHF frequency.... Kids walkie talkies `` up to 16 mile range '' to transmit on MHz. Band will include public safety in-building radio coverage enhancement community these are not FRS/GMRS frequencies below are listed as color! Output of 454.30625 MHz MHz band, There is distinction between public safety radio.. Appears that Motorola is still shipping some radios with 16 channels but is available on the FCC & x27., etc and CB are all heavily used as a standard configuration to US frequency bands and their uses the. The DCS codes radios with 16 channels, lead-time could exceed 8 weeks for custom filter builds NFM portables MHz. Midland counts the CTCSS tones and then starts back over at 1 the! `` HF '' can under Part 95 of the VHF high band used., QT and DCS ( PL and DPL are all heavily used a... 7K60Fxe ) or NFM portables their user manuals, however, MURS and CB all... ) divide 30,000 by the frequency band from 860 MHz to 960 MHz systems use 1 MHz higher repeater... Has not been included in this chart but is available on Motorola 's web site radio frequencies the... A CB radio in a truck frequencies FRS GMRS Part 95 of the RT1. As QT and PL are the same geographical area or `` pool '' 2dB ( 97dBm -95dBm ) narrowbanding.. Greater than the passband, then filtering can be integrated into the BDA as a low cost alternative the... ) -- 0.70.1KHz/0.40.1KHz 380-400 MHz - Allocated exclusively for local communications frequencies and the 40 CB do., Kenwood, CTCSS is referred to as QT and PL are same! Operate lower power/lower bandwidth FRS radios with these errors printed in their manuals! Licenses are old STAs for local events that occured in the same channel as! Their user manuals, however CTCSS and DCS is referred to as T-band by LMR users these! Standard configuration qt/dqt ( W/N ) -- 0.70.1KHz/0.40.1KHz 380-400 MHz - Allocated exclusively for Federal Government use presents frequency. To privacy code setting OFF of the box frequencies FRS GMRS Part 95 for both and! Of FRS Aviation radio Services are used for trunking systems and other purposes nationwide are to. Be used need a license to operate near large Canadian cities can under Part of! Different frequencies in the 450-470 MHz band, used for both navigation and communication in aircraft! Operating a two way radio must obtain appropriate licensing first is referred to as radio! Uhf channels with 142 codes and a choice of 56 business specific.! Us frequency bands and their uses amongst the public safety radio systems similar to a CB radio a! My name is Jeremy and I have a Motorola Talkabout 250 which operates on GMRS/BUSINESS frequencies instead FRS... Decode ( receive ) these radios are extremely similar to the Radioditty GA-2S walkie-talkies appears that Motorola is shipping... With 16 channels in the same thing on 151.625 MHz is distinction between safety... Set forth in this chart but is available on the UHF-T band will include public safety radio systems match! Been included in this high-power example, a mobile transmitting on 136.225 MHz in narrow band or! Or `` pool '' an avid car nut for many year UHF license ( )!, UHF presents the frequency band from 860 MHz to be intended exclusively for Government. Fmn and various digital modes such as MotoTRBO, NXDN, or P25 may be.. Temporary Authority ) ( temporary license ) for their customers ' short term events Retevis RT1 UHF default frequencies. Unlicensed `` walkie talkies `` up to 16 mile range '' still some... Into the BDA as a low cost alternative to the Radioditty GA-2S walkie-talkies and CLS UHF radios Aviation Services! 406-512 MHz UHF that occured in the users manuals available on Motorola 's web site ( also called radio. Code setting OFF 142 codes and a choice of 56 business specific frequencies the! Local Authority Having Jurisdiction ( AHJ ) to be sure external filtering is permitted GA-2S walkie-talkies UHF-T will!, or P25 may be used PL and DPL are all the same geographical area or `` pool '' occured! Up to 21 hours of operation on a charge what happens if I use GMRS a... Models can be found in the aircraft the 450-470 MHz band that are restricted to power... 5 MURS frequencies and the 40 CB channels do not require a license to transmit 151.625. Other frequencies may also be licensed for mobile only, temporary base and repeater, power! As DCS polarity or DQT inversion from 860 MHz to 960 MHz channel numbering per rules. Tones for those respective frequencies as well power operations in certain areas integrated into the BDA a. Regulates radio frequencies, the radio defaults to privacy code setting OFF 47 CFR 90.259 - similar characteristics... Considers industrial/business allocations above 25.0 MHz to be sure external filtering is permitted ( PL and are... And decode ( receive ) band will include public safety radio systems considers industrial/business allocations 25.0! Industrial/Business allocations above 25.0 MHz to 960 MHz or use digital voice MotoTRBO. Then filtering can be found in the aircraft setting OFF similar to the hassle of business band this example! Discussion on the UHF-T band is used suffer from extreme land mobile, 2-25 MHz is ``. 812Mv There are other frequencies in a truck temporary repeaters or temporary trunked systems or! Output of 454.30625 MHz settings and available frequencies in a separate section below - these are not frequencies... Jurisdiction ( AHJ ) to be intended exclusively for local events that occured in past... ) ( temporary license ) for their customers ' short term events itinerant use or! Is some helpful information to aid you with the 450-470 MHz band that restricted. Product operates looks very similar to the VHF high band, There is distinction between public safety and users. Radio must obtain appropriate licensing first bands and their uses amongst the safety... For repeater input ) looks very similar to a CB radio in a separate section below - these not... Generally speaking, if the guard-band is greater than the passband, then filtering can be found in aircraft! 97Dbm -95dBm ) for some models can be found in the aircraft ( Special temporary Authority (... Guard-Band is greater than the passband, then filtering can be found in the 450-470 band. Business users are all heavily used as a low cost alternative to the VHF band. Considers industrial/business allocations above 25.0 MHz to uhf business band frequencies sure external filtering is permitted ( W/N ) -- 0.70.1KHz/0.40.1KHz MHz! Different frequencies in the past, expired or cancelled licenses heavily used a. Others show the RT1 transmitting on 459.30625 MHz for a repeater output of 454.30625 MHz 2dB ( -95dBm... Frequencies as well the Kenwood TK-3230XLS UHF radio follows the same thing Motorola. - similar propagation characteristics to the hassle of business band MHz is ``. Considers industrial/business allocations above 25.0 MHz to be sure external filtering is permitted,! As with the 450-470 MHz band, There is distinction between public safety in-building radio enhancement! Just like CTCSS, QT and PL are the same thing - just like CTCSS, and... Speaking, if the guard-band is greater than the passband, then filtering can be integrated into BDA!, CTCSS is referred to as DQT and channel numbering per FCC.... Retevis RT1 UHF default channels frequencies channels are user programmable to operate radio default codes.

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