Change), You are commenting using your Facebook account. All You should use your knowledge about connecting and disconnecting reflectors and talkgroups to prevent interuptions. The license gives access to all Amateur Radio frequencies above 30 megahertz, allowing these licensees the . Frequency Range: 135.7-137.8 kHz:CW, Phone, Image, RTTY/Data In hand-held radios, an LED indicator may glow green, yellow, or orange to indicate another user is talking on the channel. Best 9 Ham Radio Equipment in Spokane, WA with Reviews - Yellow Pages See Sections 97.305(c) and 97.307(f)(11). Frequency Allocations - American Radio Relay League The DXZone is the largest human created and maintained library of web sites dedicated to Amateur Radio, currently lists 20.000+ links organized into 600+ categories and subcategories. Amateur stations are limited to 50 W PEP output and 100 kHz bandwidth. (LogOut/ Amateur Radio operating privileges on all bands and all modes. Tones typically come from one of three series as listed below along with the two character PL code used by Motorola to identify tones. If the repeater is quiet and you want to use it, before you key up and start talking, make sure your receive light has been off for a while. Matrix; On mobile radios, the microphone is usually stored in a hang-up clip or a hang-up box containing a microphone clip. The Technician class license is the entry-level license of choice for most new ham radio operators. If you want to do the work of programming the radio yourself, youll need to purchase a programming cable and understand how to use the programming software. Welcome to the Washington Digital Radio Enthusiasts amateur radio club web site. FT8 Frequencies - Boca Raton What is Amateur (ham) radio? Brasch explains that Seattle has a communications team with 60 membersnearly all volunteers and nearly all ham radio operatorsequipped to provide emergency communications in a disaster. Do I need a license to use the radio? indicates not online; pending comes to Ham Radio, the only official LF band is 2200 meters. In addition . Washington amateur radio repeater database for ham repeaters. Spokane County, Washington (WA) Scanner Frequencies and Radio Frequency This license opens the door to world-wide communications. Frequency Offset Tone Up / Down Location County Call Use Modes; 53.2900-1.7 MHz: 100.0 / 103.5 : Spokane, Mica Peak: Spokane: WA7UOJ: OPEN: FM 145.1100-.6 MHz: 118.8 / 118.8 : Spokane, Mica Peak: Spokane . document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Building a Radio System to Keep the Red Cross in Touch, http://www.redcross.org/volunteer/become-a-volunteer, Keep pets healthy when its smoky outside. See Section 97.303(e) of the FCC Rules. Kamiak Butte Amateur Repeater Association, N7GDE The Radio Amateurs of Skagit County. Get up-to-date contest information, including rules, bands and This is called Busy Channel Lockout (BCL). Advanced and Amateur Extra classes: Effective Spokane, Krell Hill AE7RJ 444.5000 Spokane, Krell Hill AE7RJ 444.5000 Moses Lake AF7PR 440.9250 Moses Lake AF7PR 440.9250 Olympia, Capitol Peak W7SIX 53.5700 [8], Family Radio Service (FRS), PMR446 and other consumer-grade radios often include a feature called "Interference Eliminator Codes", "sub-channels", or "privacy codes". There is also a USB charging cable which is used with the desktop charger base to charge a lithium-ion pack from any regular USB socket. Test it out, see what works from your location. Learn More, Get a feel for how the exam is going to go and what you should really focus on while studying. When you purchase the radio through WPV-CERT, your radio will arrive programmed to our frequencies and ready to use. Washington DMR amateur radio repeater database for ham repeaters in the US, Canada, and Mexico. Digital Simplex Frequencies(12.5Khz NWS band is best worked at night during the winter. Can I purchase this radio? But even if every chapter builds its own robust radio system, they would still need to be tied together to handle a disaster big enough to involve the whole region. 3300-3500 MHz Washington Digital Radio Enthusiasts | Main Page A car powered battery eliminator is available which powers the radio directly from a car lighter socket. MMDVM Adams Asotin Benton Chelan Clallam Clark Columbia Cowlitz Douglas Ferry Franklin Garfield Grant Grays Harbor Island Jefferson King Kitsap Kittitas Klickitat Lewis Lincoln Mason Okanogan Pacific Pend Oreille Pierce San Juan Skagit Skamania Snohomish Spokane Stevens Thurston Wahkiakum Walla Walla Whatcom Whitman Yakima Choose a Metro Area with a maximum effective radiated power (ERP) of100 WPV-CERT does not sell these accessories, but you can easily find them for sale through many online stores. Ill be putting one of those antennas in my backyard to see if it works, says Brasch. Multiple locations were found. 128 E Locust Ave. Coeur D Alene, ID 83814. It supports public service for welfare messages and true . This way the problem with lost syllables at the beginning of a transmission can be overcome without having to use higher frequency tones. Initially, a phase shift of 180 degrees was used, but experience showed that a shift of 120 to 135 degrees was optimal in halting the mechanical reeds. delayed or shelved // If For example, the tone of 100.0Hz is avoided in the United Kingdom since this is twice the UK mains power line frequency; an inadequately smoothed power supply may cause unwanted squelch opening (this is true in many other areas that use 50Hz power). This may reduce the life of the lithium-ion battery pack. Area Map - Heat Maps: Therefore, having an AA battery pack was an important deciding factor. Do I need an Amateur Radio (ham radio) license to use the radio? Spokane Washington Amateur Radio Repeaters 38 REPEATERS FOUND AT OR NEAR SPOKANE = On-Air = Off-Air = Testing = Unknown Click on the frequency for additional details. From the latest gadgets and gear to the latest preparedness news we have you covered! The Seattle chapter offers a model of how that might lookwith a trained core of radio operators. Washington DMR Amateur Radio Repeaters - Repeaterbook.com Ham Radio operators review new sites every day since 1998, for potential inclusion in the Directory, and to evaluate the best place to list them. Good morning! Tri-Peaks. When the user pulls the microphone out of the hang-up clip to make a call, a switch in the clip (box) forces the receiver to revert to conventional carrier squelch mode ("monitor"). (LogOut/ PNW is an Amateur Radio IPSC Network dedicated to maximizing DMR use in the Pacific Northwest using MotoTRBO repeaters and c-Bridge Networking devices . occupants in this band. The repeater receiver must first sense the carrier signal on the input, then decode the CTCSS tone. Can I leave the radio in the charger? You CANNOT use your cell phone as a calculator during this examination. [5] The lowest series has adjacent tones that are roughly in the harmonic ratio of 20.05 to 1 (1.035265), while the other two series have adjacent tones roughly in the ratio of 100.015 to 1 (1.035142). maximum; otherwise not the best band for DX, License Class: Novice and Technician classesFrequency Range: 28.000-28.300 MHz: CW, RTTY/DataMaximum power 200 watts PEP 28.300-28.500 MHz: CW, PhoneMaximum power 200 watts PEP, License Class: General, Advanced, Amateur Extra classesFrequency Range: 28.000-28.300 MHz: CW, RTTY/Data 28.300-29.700 MHz: CW, Phone, Image, License Class: All Amateurs except NovicesFrequency Range: 50.0-50.1 MHz: CW Only 50.1-54.0 MHz: CW, Phone, Image, MCW, RTTY/Data, License Class: All Amateurs except NovicesFrequency Range: 144.0-144.1 MHz: CW Only 144.1-148.0 MHz: CW, Phone, Image, MCW, RTTY/Data. If you have taken CERT basic training under another CERT program and wish to participate in WPV-CERT training exercises or Washington Digital Radio Enthusiasts HamRadioPrepper.com is your source for everything ham radio and emergency communications related. for FCC licensed stations in ITU Regions 1 and 3 and by FCC licensed stations Radio Communications Equipment & Systems Radios-Citizens Band Consumer Electronics. [9] GMRS/FRS radios offering CTCSS codes typically provide a choice of 38 tones, but the tone number and the tone frequencies used may vary from one manufacturer to another (or even within product lines of one manufacturer) and should not be assumed to be consistent (i.e. The availability of a reasonable quality AA battery pack was a big factor in selecting this radio, as this is a very unusual option to find in Part 90 certified radios. that fall between 30300 kHz. This is the home of the WA7DRE affilliated repeater systems located in, and around Spokane, Washington. Note: Sorting does not carry through to exports! Please Contact Us. Learn More, ARRL can provide helpful FCC information about licensing requirements, forms, fees and regulations. If Internet and cell phones stop working, such as during a disaster, public safety power shutoff or other incident, a two-way radio may be the only way to coordinate CERT response efforts. They may also use channels. Another busy frequency is 160.455. If the calculator is programmable, or is capable of storing any type of information, we will want to see you reset it to factory defaults which will erase any programs or data it may contain. Still more work lies ahead, says Braschincluding an advanced system of radio antennas. Email me at: betsy.robertson (at) redcross.org and I will introduce you. Automated Maritime Telecommunications Systems (AMTS) stations are the primary One piece of that mandate is to improve communications capabilities at each chapter. If you push the PTT button while you have one of these channels selected, the radio will beep. The tones are not actually below the range of human hearing, but are poorly reproduced by most communications-grade speakers and in any event are usually filtered out before being sent to the speaker or headphone. It takes just a few minutes to learn how to use a two-way radio. Their overall quality is also below the standard we want to provide to our members. Website. This web site does not attempt to instruct you how to do these things. Ensuring you always have a way to power your radio is very important. It is sometimes referred to as a sub-channel, but this is a misnomer because no additional channels are created. 80 Part of the answer can be found in the very nature of radio waves. When audio at a resonant pitch was fed into the reed, it would resonate, which would turn on the speaker audio. . Listening to professionals use the radio is a valuable way to improve your radio communication skills. A receiver with just a carrier or noise squelch does not suppress any sufficiently strong signal; in CTCSS mode it unmutes only when the signal also carries the correct sub-audible audio tone. Frequency Input License Type Tone Tone In Alpha Tag Description Mode Tag; 53.290: 51.590: WA7UOJ: RM: 103.5 PL: 100.0 PL: WA7UOJ 6M: WA7UOJ Mica Peak: FM: Ham: 2 . The Energizer Ultimate Lithium batteries are recommended for long term storage, as they will last longer than typical alkaline batteries and will not leak when stored for a long time. The interference will still be present and may block the receiver, but the decoder will prevent it from being heard. The license gives access to all Amateur Radio frequencies above 30 megahertz, allowing these licensees the ability to communicate locally and most often within North America. Norway, Denmark, and Iceland. ACS primarily supports communications between all government emergency management agencies, which includes local, state and federal organizations, along with response partners such as the Red Cross. These exemptions do not apply to stations in School age kids can use their school ID cards. says that hams planning to operate on 60 meters "must assure that their signal is transmitted on the channel center frequency." This means that amateurs should set their carrier . WA-E/ID Novice and Technician When the tone is present, the receiver is unmuted, when it is not present the receiver is silent. The use of digital squelch on a channel that has existing tone squelch users precludes the use of the 131.8 and 136.5Hz tones as the digital bit rate is 134.4 bits per second and the decoders set to those two tones will sense an intermittent signal (referred to in the two-way radio field as "falsing" the decoder). It is sometimes referred to as tone squelch. The CTCSS feature also does not offer any security. Use the lithium-ion pack for regular use, such as for testing, participating in drills and exercises, regular check-in nets, etc. We are planning to restart VE7RCE our Red Cross Station here in the BQ HQ. That's thewhole point of the weekly practice opportunity! Its also very easy to replace a drained set of AA batteries with a fresh set in just a few seconds, whereas recharging a lithium-ion pack takes many hours. Check back here for content updates, stories, relief efforts and other information about the local American Red Cross. Add Repeater; Map Results. Frequency Offset Tone Up / Down Location County Call Use Modes IPSC DMR Local Network; 145.1500-.6 MHz: CC2 : Cheney: Spokane: WA7DRE: OPEN : DMR Brandmeister: BrandMeister US: 145.2100 +2.78 MHz: CC3 : Mazama . Find a ham radio exam session in your area or take the exam online. Learn More, Download or print Amateur Radio question pools. Change). When the user releases the push-to-talk button the CTCSS tone does a phase shift for about 200 milliseconds. dates for each individual contest. Written by John Cole August 28, 2020. Spokane, WA2601 N Rambo Rd.Spokane, WA 99224509-244-0110Comments? RepeaterBook.com: Quick Search Why did you program channels into the radio which are receive-only (no transmit), such as the fire frequencies (Channels 100+)? This is called the monitor function. For more information call: 1-888-277-5289. latitude. bands span the radio spectrum; each band is going to provide a different set of Washington Digital Radio Enthusiasts 1996-document.write(new Date().getFullYear()) The DXZone.com - Terms of Use, Copyright & Privacy Policy. in ITU Region 2 West of 130 degrees West longitude or South of 20 degrees North The tones are usually referred to as sub-audible tones. Learn More, Find an in-person ham radio exam location in your area or schedule an online exam. Very informative ! Most radio manufactures do not advise leaving the radio/battery in the charger once it is charged. you wish to contact the repeater Washington Digital Radio Enthusiasts. Local Repeaters & Frequencies of Interest | WSU Amateur Radio Club 30 days before beginning operations. Meter Band frequencies are just above commercial AM broadcast bands. Click on a header to sort. 30 Meters QSL Card Checkers Gary Bytnar (AD7XG) & Bruce Wade (N7ZA) 12. ARES/ACS (Amateur Radio Emergency Services - Spokane County, WA Learn MoreAmateur Extra License, The Amateur Extra class license conveys all available U.S. [10], Last edited on 12 February 2023, at 20:48, Learn how and when to remove this template message, "A Historical and Technical Overview of Tone Squelch Systems", "Information Sheet: Continuous Tone Controlled Squelch System", https://en.wikipedia.org/w/index.php?title=Continuous_Tone-Coded_Squelch_System&oldid=1138997541, This page was last edited on 12 February 2023, at 20:48. The user occasionally hears a syllable or two of co-channel users on a different CTCSS tone talking. hq@arrl.org. in the festivities. https://www.youtube.com/watch?v=A3F-1h_0qGE. This all occurs between 7:30pm and about 7:40pm, so dont be late! When those are in place, it should be possible for all seven chapters to stay in touchincluding Spokane and Kennewick to the East and Bellingham to the far North. 2200 Meters. In comparison, there's a morning Ohio rag chew net that operates on 28.337 MHz, Monday-Friday at 8:30 am. Inland Empire VHF Radio Amateurs - Located in Spokane, WA in the Heart of the Inland Empire [ Hits: 586 | Votes: 1 | Rating: 9 ] K7PAR Puget Amateur Radio Society Spokane Repeater Home Page Repeaters Learn More, DXCC Program, W100AW & W1AW QSLs via Bureau, Amateur Code, Centennial QSO Party, NPOTA, Operating Specialties, International Grid Chase 2018, Hiram Percy Maxim 150th Birthday Celebration, Awards, QSL Service, Cycle 25, Logbook of the World, Transatlantic, Contests, Special Event Stations, Operating Resources, W1AW, Volunteers On the Air, Amateur Radio Direction Finding, Courses & Training, Volunteer Instructors/Mentors, Amateur Radio in the Classroom, Get on the Air, Getting Licensed, What is Ham Radio, Youth Licensing Grant Program , FCC License Info and Forms, License Certificates, Volunteer Examiners, Learning Programs, Member Directory, myARRL, Blind Membership, Join ARRL/Renew Membership, member feedback, Dues Increase FAQ, Techquestion, Please Confirm Your Information, Member Discounts, Member Bulletin, QST Reissue, Membership Certificate, Member Benefits, 3-Year Special Offer, Member Support, ARRL Groups, Connecticut Member Social, Membership Levels, Gift Membership, Login Instructions, Silent Key Submission Guidelines, Dues Survey, State and Local, Volunteer Consulting Engineer Program, Volunteer Counsel Program, Antenna Regulation and Zoning, CCR Study Information, International, Technical Relations Office, Federal, Volunteer Monitor Resources, Federal RFI Preemption, Volunteer Monitor Program, NTS Manual, Public Service Resources, NTS, Volunteer Form for Deployment Consideration, Puerto Rico - Caribbean Recovery 2017, 2018 Hurricanes, Hurricane Maria - 2017, Hurricane Irma - 2017, Hurricane Harvey Response, 2019 Hurricanes, Ham Aid, 2020 Hurricanes, 2021 Hurricanes, Public Service Honor Roll, SKYWARN Recognition Day, Served Agencies and Partners, ARES, ARRL References, ARRL Lab, Tech Portal, Radio Technology Topics, Clean Signal Initiative, Radio Frequency Interference (RFI), Clubs, Volunteer Opportunities, The ARRL Foundation, Donate to ARRL, Youth, Recruiting & Outreach, Collegiate Amateur Radio, Hamfests and Conventions Calendar, ARRL Publication Dealers, ARRL Store, List all Products, Return Policy, Shipping and Tax, Customer Service/Support, Handbook, Product Notes, Site Index, Centennial, Privacy Policy, ARRL Strategic Plan, Advertising and Other Business Opportunities, ARRL on the Purpose of Amateur Radio, Library, Ideas, Media and Public Relations, Copyright, Organization Structure, Visit Us, General Information, Contact ARRL, ARRL Social Media, Employment Opportunities, ARRL Learn More, Licensing, Education & Training>>Getting Licensed, Compliments of ARRL and Our Business Partners. Washington Live Audio Feeds - Broadcastify.com I have not taken CERT training. The generic name is CDCSS (Continuous Digital-Coded Squelch System). Most Red Cross chapters and vehicles have radios designed to work on those frequencies. On Vancouver Island in Victoria VE7VIC is located in the Cdn Red Cross office there. must notify the station in writing at least 30 days prior to beginning All above 300 GHz, * Notes: Primarily used in United States, United Kingdom, Ireland, Pressing one half of the button, (often marked with a speaker icon or the letters "MON", short for "MONitor") disables the CTCSS decoder and reverts the receiver to hearing any signal on the channel. Amateur operation at 76-77 GHz has been suspended till the FCC can determine We recognize that not everyone is interested in becoming a licensed Amateur radio (ham) operator. Spokane County, Washington Amateur Radio Repeaters Which battery should I be using, the lithium-ion pack or the AA pack? All radios in the system start decoding after they sense a carrier signal then recognize the tone on the carrier as valid. Spokane Repeater Group sponsors the 147.20 MHz repeater, which is an open system and available to all responsibleamateurs, who seek a nice sounding system. To When that occurs, the system transmitter turns on, encoding the CTCSS tone on its carrier signal (the output frequency). Hand-held radios usually have a switch or push-button to monitor. = duplicated Frequency/Color Code // Beyond that, Brasch says little has been done in the past to coordinate chapter radio operations into a single, integrated regional system. Theyll be better positioned to answer your question. Usually your state drivers license will do. It does this by adding a low frequency audio tone to the voice. stations geographic location to the ARRL for inclusion in a database at least Questions? I used my personal equipment in Home Fire Campiagn in my area which various handies were handed out to the group to comunicate to the base station I was the net control and was a success. 7.200 to 7.300 MHz is not available outside ITU Start with listening to channel 101, the Control 1 dispatch channel for WFPD and surrounding fire districts. There is a huge range of inexpensive two-way radios available today, however many of these radios are not FCC Part 90 certified and are therefore not legal to use on the frequencies we use. Try listening/making contact on WD1 channel (001), and then after weve tried to reach everyone on WD1, we all switch to PV1 (003) and do the same again, around 7:35pm. that interference will not be caused to vehicle radar systems. FT8 Frequencies. Laurel ARC Volunteer Examiner Coordinators, FCC Part 97 Rules governing amateur radio, FCC FRN Information and registration application, FCC Universal Licensing System - Main Page, http://www.arrl.org/tech-prep-resource-library. Troubleshooting note: If you're having trouble with your radio not keying up the Pullman repeater (this can happen sometime with new radios), make sure that the offset is set to 5Mhz. Should Cascadia hit, says Brasch, response units from all over the country would be deployed from Spokane or Moses Lake. ARRL DX SSB March 6-7, 2021 DIST), DEPARTMENT OF NATURAL RESOURCES - TONASKET (OKANOGAN BV9P PRATAS ISLAND Under 19 years of age are free. The current version is"Green 3" or "G3". Region 2. Group It has large coverage area in Eastern Washington and Northern Idaho. Online and in-person tests are given regularly. If there is a sense of urgency to his work, its understandable. CTCSS is an analog system. Packet Frequencies Kamiak Butte: 145.05: 1200 baud (K7LL-7: PULLMN) 440.125: 9600 baud (K7LL-8: PULL96) 223.460: 1200 baud (K7LL-9) ("backbone" link) Pullman: 440.125: K7LL-10 Winlink RMS Gateway APRS North America coordinated frequency: 144.39 MHz @ 1200 baud Moscow Mtn: W7NGI-11 Stop by and say hello. Bring a pencil or pen so you can mark the test sheet. has allocated 219-220 MHz to amateur use on a secondary basis. Building a Radio System to Keep the Red Cross in Touch . mode with a bandwidth of 2.8 kHz or less whose technical characteristics have They are used by WPV-CERT members for communications during WPV-CERT training, exercises and during emergency response. If I obtain my Amateur Radio (ham radio) license, can I use this radio as my first handheld radio? But for the past year he has also been lead for radio communication for the entire Northwest region. The Engineered systems may call for different level settings in the 500Hz to 1kHz (1020%) range. I would like to hear your opinion. These are listen only channels. This allocation License Class: General classRange: 14.025 -14.150 MHz CW, RTTY/Data 14.225 -14.350 MHz:CW, Phone, Image, License Class: Advanced classRange: 14.025 -14.150 MHz CW, RTTY/Data 14.175 -14.350 MHz:CW, Phone, Image, License Class: Extra classRange: 14.000 14.150 MHz CW, RTTY/Data 14.150 -14.350 MHz:CW, Phone, Image, License Class: General, Advanced, Amateur Extra classesFrequency Range: 18.068-18.110 MHz: CW, RTTY/Data 18.110-18.168 MHz: CW, Phone, Image, License Class: Novice and Technician classesFrequency Range: 21.025-21.200 MHz: CW Only, License Class: General classFrequency Range: 21.025-21.200 MHz: CW, RTTY/Data 21.275-21.450 MHz: CW, Phone, Image, License Class: Advanced classFrequency Range: 21.025-21.200 MHz: CW, RTTY/Data 21.225-21.450 MHz: CW, Phone, Image, License Class: Extra classFrequency Range: 21.000-21.200 MHz: CW, RTTY/Data 21.200-21.450 MHz: CW, Phone, Image, License Class: General, Advanced, Amateur Extra classesFrequency Range: 24.890-24.930 MHz: CW, RTTY/Data 24.930-24.990 MHz: CW, Phone, Image, Band Notes: Great activity during solar Excellence in Amateur Radio . Your radio when powered on will display the version it is programmed for. A CTCSS decoder is based on a very narrow bandpass filter which passes the desired CTCSS tone. IN BUSINESS. include PACTOR I, II or III, 300-baud packet, MFSK16, MT63, Contestia, Olivia, Beyond that, there are thousands of amateur radioham radiooperators in the region who are trained in emergency communication. WA7DRE 2M Repeater System. It has large coverage area in Eastern Washington and Northern Idaho. View all posts by RedCrossNW. No, these radios are offered for sale only to people who have completed CERT basic training. For example, you may connect to a DMR talkgroup, and be standing by listening, but another station may key up on D-STAR and your DMR QSO will be interupted for up to 20 minutes. There are a number of communications resources to call upon. The tone is transmitted at a low level simultaneously with the voice. to use of any repeaters on the Since this is a combination D-STAR and DMR repeater, please be aware that the mode other than the one you are listening to may interupt your QSO. Learn More, Contests That is, disconnect the mode other than the one you want to use, before connecting to the one you want. No, you dont need an amateur radio license to use many of the channels (frequencies) we use. When it comes to Ham Radio, the only official LF band is 2200 meters. Wideband and extremely sensitive radios are common in the amateur radio field, which imposes limits on achievable intermodulation and adjacent-channel performance. I can purchase this radio online. So its your choice. transmitter output power into an antenna with a gain of 0 dBd. Its also a great way to maintain situational awareness. License Class: General Frequency Range: 7.025-7.125 MHz :CW, RTTY/Data 7.175-7.300 MHz::CW, Phone. Keeping the battery pack (the lithium-ion or the AA pack) attached to the radio will drain the battery over time. I am really having interest to learn the way your establishment of radio communication system, I WANT TO COMMIT MY SELF TO LEARN MORE ABOUT RADIO COMMUNICATION SYSTEM. When disaster strikes, nothing is more important to keeping all responders functioning as a team than solid, dependable radio communications. This interlock option is referred to as compulsory monitor before transmit (the user is forced to monitor by the hardware design of the equipment itself). These systems often have audio muting logic set for CTCSS only. Please be sure you understand how to connect and disconnect to various reflectors and talkgroups before you depend on it for communications. MHz Yes, you must purchase a GMRS license from the FCC to legally use the radio. The full list of the tones can be found in their original standard RS-220A,[2] and the most recent EIA/TIA-603-E;[3] the CTCSS tones also may be listed in manufacturers instruction, maintenance or operational manuals. Because period is the inverse of frequency, lower tone frequencies can take longer to decode (depends on the decoder design). Where more than one group of users is on the same radio frequency (called co-channel users), CTCSS circuitry mutes those users who are using a different CTCSS tone or no CTCSS. ARRL Net Directory - American Radio Relay League This is common with General Electric Mobile Radio and Motorola systems. My main problem is that not all the zone leader have an amatuer license. In an FM two-way radio system, CTCSS encoder levels are usually set for 15% of system deviation. Newington, CT, 06111-1400 USA I am a 5 year volunteer of the Cdn. Depending on your location, you may not reach each repeater.

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