civil radio frequencies

Its name refers to the radio frequency used by the signal (1227 MHz, or L2) and the fact that it is for c ivilian use. When you purchase the BaoFeng UV-5R, it contains pre-set commercial, civil, and amateur frequencies.These can lead to accidental interference with other services. Also, space weather can affect communications. CB Radio has 40 channels with CB radio frequencies ranging from 26.965 to 27.405 MHz. (adsbygoogle = window.adsbygoogle || []).push({}); Copyright 2022 - All right reserved. Emergency communications not only help you to know impending weather, find resources, and avoid dangerous areas, but they also help you know where loved ones are at, or even allow you to call out for help should find yourself in some dangerous predicament. 3) Ensure that there is no unofficial use of the designated military, civil, or MARS frequencies, regardless of the radio used. To avoid this from happening, you need to program the transceiver with local amateur frequencies. In the United States, VHF civil aircraft communications are placed in the 100 MHz band and allocated 760 channels within the range from 118.-136.975 MHz. document.getElementById("comment").setAttribute( "id", "a05039daa2759c02ca604eefcc38a952" );document.getElementById("c68128d756").setAttribute( "id", "comment" ); Save my name, email, and website in this browser for the next time I comment. 3900-4000 MHz. These ATC-related UHF services can be provided by civil . As far as I know, its the only channel that is distinctly reserved. This message was sent by accident instead of the usual weekly EAN test. Each "Basic Key Station" receiving an alert or warning signal from the A.D.C.C. R68 Analog, Airborne/Portable Repeater Ch. One of its roles is to allocate all radio bandwidths and frequencies. R02-R62 (Even) Secondary Repeater Digital, Ch. Ch. . There are a number of radio frequency ranges in use in satellite communications such as C, X, Ku, Ka and even EHG and V-band. This is just the kind of information the public NEEDS for when Hillary Clinton uses her Illuminati powers granted to her by the Reptilians to control Bigfoot when he comes to tAK HouR GUNzs?!!! You have reviewed your ATC communication skills and studied your copy of Aviation Radio Communications Made Easy. To reject the use of all cookies, click Reject all. 27,15500 - CB Channel 16 - open to all ( also for SSB cb radio) 27,16500 - CB Channel 17 - open to all-North/South Traffic. Part-ML. These are reserved for navigational aids such as VOR beacons, and precision approach systems such as ILS localizers. CANCELLATION. When you get your radio and license, read up on which bands are best at night, day, etc. There is just one problem what frequency are you supposed to be on? R67 Portable and Aero Repeater Analog, Ch. Enter your email address below to get your One Year Urban Survival Plan it's 100% FREE! As mentioned earlier, there are two ways to use your radio. Civil Air Patrol USAF Auxiliary CAP - the Civil Air Patrol are prolific users of HF-SSB (both USB voice and sometimes ALE data for frequency/link establishment, then back to SSB voice) and VHF-FM/VHF P25 digital voice systems in addition to traditional VHF-AM airband. Plus daily survival tips (unsubscribe anytime). I would also encourage you to print this article off to keep should you need it some day down the road. For more information about our use of cookies and to opt-out of cookies at any time, please refer to our website Legal & Privacy Statement. Neither one of these agencies license or control ham radio but hams interact with them, especially FEMA which has some agreements with hams concerning radio. All comments are moderated before being published, PilotMall.com Inc.23 Kelli Clark Ct SECartersville, GA 30121, Aeroplane Apparel CompanyHigh Flying ModelsPilot Toys. Some radios are only capable of COM, while others are dedicated for NAV, and a third variety is configured to be used for both COM and NAV. Freebanding is the act of utilizing the frequencies in-between the different CB channels. 2) Only approved radio equipment as specified in this policy shall be utilized for TXSG operations. IS : 456 - 2000 CODE BOOK; IS : 9013 - 1978 CODE BOOK; IS : 800 - 2007 CODE BOOK; IS : 1343 - 1980 CODE BOOK; IS : 383 - 1970 CODE BOOK; IS : 10262 - 1982 - CODE BOOK; IS : 4031 CODE BOOKS (ALL PARTS) Steel Tables for civil engineerring; GATE EXAM NOTES. Types of aircraft. Channel 15 is the AM Emergency Call Channel. Apply for a Latitude, Inc. Civil Site Designer / Design Engineer job in Severna Park, MD. Please see the following public references for information. Aircraft Radio Frequencies used for Aviation This page covers Aircraft radio frequencies used as aviation frequency bands. I made that mistake. Ham Radio Frequencies (Channels) The UV-5RA has 128 channel memory slots available. RACES Radio Amateur Civil Emergency Service. With out a coordinated defense, we could be sitting ducks, or fish in a barrel to attackers. 27,13500 - CB Channel 15 - open to all. Depending on your location, the likelihood of being prosecuted may not be very high, but it is important to know that the safe and correct course of action if you want to talk to another pilot is to use 122.75 MHz which is the designated air-to-air frequency for fixed wing aircraft. Aviation radio is allocated a small portion of the medium frequency spectrum in a band from 2850 to 3000 KHz. That takes a bit of study to figure out how to do, however. Also, at the bottom of the new page, Please also add the "Frequencies" categories that are specific for each of the state(s) and/or province(s). The VHF frequency ranges used for aviation are: Within the VHF aviation communication frequency range, the most commonly used frequencies and their corresponding allocations include: En Route Flight Advisory Service (Flight Watch), Air-to-Air (Gliders and hot air balloons). You can buy the classic CB radio for around $100. This will keep you out of trouble and show that you are well-versed in the correct aviation frequencies usage. When adding a new article for this topic, please CATEGORIZE the new pages by applying categories on the last line of the article, as follows: Bureau of Alcohol Tobacco Firearms and Explosives (ATF), Radio Spectrum Management and Allocations, https://wiki.radioreference.com/index.php?title=Common_Frequencies&oldid=309650. R02-R62 (Even) Secondary Repeater Analog, Ch. Menu. You can get started in ham radio with a simple $25 Baofeng UV-5R, but I would highly recommend investing the money to get something a little more user friendly as your first ham radio. All. Called Atmospheric Propagation. Most planes have radio direction finders onboard that get a bearing by focusing in on a medium frequency transmission. R64 Airborne/Portable Tactical Repeater Analog, Ch. R01-R61 (Odd) Primary Repeater Digital, Ch. Sponsorships available. Data Center. CONELRAD Logo, incorporating the shield of, Last edited on 15 November 2022, at 05:32, "WE MUST BE READY FOR A NEW DANGER: OPERATION ALERT, CONELRAD, AND CIVIL DEFENSE IN THE EARLY COLD WAR", "An Emergency Alert System for the Digital Era", "City's Civil Defense Sirens Will Be Tested Tomorrow", CONELRAD.COM, "A creepy look at Cold-War culture. While no one expects pilots to memorize all the aviation frequencies, it is certainly helpful to know the most common ones and how the frequencies are laid out within the bands. the National Communications Commission on radio frequency device inspection. Background The CB Service provides a service All 50 states plus Puerto Rico and the District of Columbia are represented in the national nets. The author may not know a great deal about them. FEMA and NOAA are NOT ham radio abbreviations, You might be referring to ham radio q signals (which were originally intended for use with Morse code to reduce the number of words you had to transmit) but these days are commonly used on voice frequencies as well because they accomplished the same effect for example qth is used to mean my location is. RFID is becoming a popular technology in many different fields these days, including supply chain systems, community medical and transportation systems. High frequency continues to be used for voice communications for international flights, however, as it can travel a longer distance than VHF. Amateur frequencies may be used by guardsmen who are licensed hams, but only when not on duty. One is called "simplex" which simply means one radio communicating directly to another radio. Band-Pass Filter Bandwidths? Once you start using them over the United States or its coastal waters, however, you could have a very big problem potentially a $10,000 problem, to be precise. Volume I If you are making a night approach to landing at an airport with a PCL, in most cases, you will activate the system through your radio which is set to the appropriate CTAF frequency. However, the system's alerting protocol could be used for alerting of natural disaster by 1957. An FRS radio might be the best choice for you. The switching later became known informally as the "EBS Stress Test" (due to many transmitters failing during tests) and was eventually discontinued when broadcast technology advanced enough to make it unnecessary. Note: More than one of the three categories above can be used, if appropriate. In an environment of ever increasing demand for access of this spectrum, military organisations must also guarantee that there is an appropriate level of standardisation to ensure . CAP was one of the groups interested in the adoption of the "military FRS" UHF short-range service (14 channel UHF intra squad radio or ISR) as well. A high-level understanding of the types of aviation radio signals your aircraft can receive will also go a long way towards developing your knowledge on the topic. Have nothing againist HF. Ive been in the ham hobby since the 1970s. You may not be able to find this page because of: 105 S. Hansell StreetMaxwell AFB, AL 36112, Civil Air Patrol is a registered 501(C)(3). Vhf and uhf are good choices when you want local communications. Feel free to list wings and specific frequencies actually heard here. The CONELRAD concept was originally known as the Key Station System. Include Police, other emergency people, Marine, the entire aircraft list for Sydney, RAAF squadron frequencies, UHF CB frequencies as well as a heap of miscellaneous frequencies like security, shoppin malls etc. I would encourage you to add more to the list in the comments section so we can update this post accordingly over time. Anybody within range can listen to what you say through freebanding CB channels. The only possibility would be the 20 meter amateur band. Most of the recommendations made are intended for use after a SHTF/WROL situation, or during a Civil Defense event. Channel 9 on Citizens Band is actually reserved by Federal law for emergency use. I dont have the law handy, but its in the Federal statutes relating to the Citizens Band Radio Service. A nationwide group of HAM radio volunteers with specialized training in emergency communications that provides communications services during emergencies. R-14, Splendora, Analog), Houston North (Ch. Other countries also have their own versions of Weather Radio and in every place, its a receive only frequency no transmitting permitted. In the United States, VHF civil aircraft communications are placed in the 100 MHz band and allocated 760 channels within the range from 118.0-136.975 MHz. In such terrain, range is greatly reduced, and the higher powered mobile is the only way have reliable communication. 90 meters. Channel 8 to 24 are to be used for AM transmission ONLY. 1 Canada 2 United States 2.1 Civilian 2.2 Federal Government 2.2.1 Department of Agriculture 2.2.2 Department of Commerce 2.2.3 Department of Energy 2.2.4 Department of Homeland Security 2.2.5 Department of the Interior 2.2.5.1 Fish and Wildlife Service 2.2.5.2 National Park Service 2.2.6 Department of Justice 2.2.7 Department of State SATERN Salvation Army Team Emergency Radio. Volunteers serving America's communities, saving lives, and shaping futures. Put the radio on an external antenna on the roof your vehicle, or better yet, on your home for a 2 to 5 mile range. civil Engineering Code Books cOLLECTION. It has more power and is generally a better overall product, but the Baofeng is more portable. Keep in mind that anything you say on CB radio frequencies can be heard by anybody else within range, so it is not a source of private conversation. Grouped. Welcome to SHTF Blog, owned and operated by Prepper Press and made possible by all of our supportive readers and wonderful writers. And local meteorology can as well. Others were kept operational as backups in case of primary navigation system failures. The most common criterion is based on the -3dB frequency. A team of marksman spread out over hundreds of yards using using only bolt action hunting rifles, but coordinated by use of hand held radio, could be a much more effective force than a gang with only box fed semi auto rifles. It not only is incredibly easy to use, but its a relatively easy form of disaster communications to break into. The stations that stayed on the air would transmit on either 640 or 1240kHz. 2300-2495 MHz. Select frequencies have been set aside as flight test stations. You may have a radio, but knowing how to use it to its fullest potential is quite another matter. R69 Digital, Airborne/Portable Repeater Ch. There is quite a steep learning curve with ham as well. The ultra-high frequency (UHF) radio infrastructure (225 MHz - 400 MHz) is used by most air navigation service providers (ANSPs) as a fundamental alternative to ensure ATC communications with non-8.33 kHz equipped State aircraft operating GAT/IFR and, in some cases to support OAT flights. Today, some low frequency beacons remain and are used for instrument landings. R63 Airborne/Portable Tactical Repeater Digital, Ch. X-band radar frequency sub-bands are used in civil, military and government institutions for weather monitoring, air traffic control, maritime vessel traffic control, defence tracking and vehicle speed detection for law enforcement. The full allocation list covering all 760 channels in the VHF aviation band is posted in FAA advisory circular 90-50D. The arrangement requires certain telephone circuits (private wire or direct line to Toll Board) between the Air Defense Control Centers (A.D.C.C.) Aviation Radio Frequency Bands R64 Airborne/Portable Tactical Repeater Digital, Ch. There are different tiers of ham radio licenses, and to transmit via high frequency (HF), youre going to need a specialized license. Oftentimes, you may need a CB radio with freeband operation in order to even tune in to these channels. Please contribute new/current information, so we can expand the DB, CAP Additional Information can be found in the Arizona (US) and U.S. Government (AZ) articles, Arkansas Wireless Information Network (AWIN), California Wing Tactical Call Sign: "Yosemite", Iowa Civil Air Patrol - RACOM - IL, WI, MN, NE, SD, IA. Ill definitely print these frequencies and put them with my emergency gear. Notify me when juicy new comments are added. R63 Airborne/Portable Tactical Repeater Analog, Ch. There are hundreds of tutorials on how to use a Boafeng. Designed and developed by Prepper Press, This site uses cookies to improve your experience. VHF communications channels usually have 25 KHz of spacing between them, except for flight test stations which are spaced by just 8.33 kHz and the emergency frequency of 121.5 MHz which has 100 kHz of protection around it. 5 Ways to Contact Loved Ones After the Grid Goes Down, 3 Ways to Communicate Through the Apocalypse, How to Get a Ham Radio License in the USA, 2182 kHz International maritime distress frequency for radio telephony, 4340 kHz NATO combined submarine distress, 34.90 MHz Often used by the National Guard for emergency purposes, 39.46 MHz State and local police forces for inter-departmental emergency communications, 121.5 MHz International aeronautical emergency frequency, 151.940 MHz Emergency channel used by preppers, 154.52 MHz Local fire departments for inter-department emergency communications, 155.60 MHz State and local agencies for inter-department emergency communications, 156.75 MHz International news channel that broadcasts maritime weather, 156.80 MHz (VHF Channel 16) Global emergency radio transmissions, 156.85 MHz International maritime distress, calling and safety frequency, 163.4875 Another frequency often used by the National Guard for emergency operations, 243.0 MHz NATO combined distress and emergency frequency, 406.0 Emergency position indicating locator beacon (EPIRB), 38.080 MHz Caribbean weather information, 38.730 MHz West and Central Gulf ARES/Louisiana ARES, Mississippi ARES, 39.100 MHz Central Texas Emergency/Mississippi ARES/Louisiana Traffic, 39.230 MHz Mississippi ARES, North Carolina ARES, 39.250 MHz Central Gulf Coast Hurricane, Louisiana Emergencies, 39350 MHz Central Gulf Coast Hurricane, Louisiana ARES, Texas ARES, Mississippi ARES, Alabama Emergencies, 39.500 MHz Hurricane Watch/Norther Florida Emergency, 39.935 MHz Gulf Coast health and welfare/South Carolina ARES/South Carolina RACES, 72.250 MHz Central Gulf Coast Hurricane, 72.350 MHz Louisiana Emergency/Central Gulf Coast Hurricane, 72.400 MHz American Red Cross/US Gulf Coast, 72.430 MHz Alabama Emergency/South Carolina Emergency, 72.640 MHz Gulf Coast health and welfare, 72.650 MHz Salvation Army Team Emergency Radio (SATERN), 72.850 MHz West Gulf ARES (day)/Louisiana ARES (day)/Mississippi ARES/Texas ARES, 72.900 MHz Central Gulf Coast Hurricane, Gulf Coast Weather/Louisiana ARES/Texas ARES/Mississippi ARES, 142.680 MHz Amateur Radio Readiness Group, 143.030 MHz International Assistance and Traffic, 213.100 MHz Health and Welfare (Spanish), Channel 3 @ 26.985 MHz Prepper CB Network, Channel 4 @ 27.005 MHz The American Preppers Network, Channel 9 @ 27.065 Universal CB Emergency & REACT Channel (Radio Emergency Associated Communication Teams), Channel 13 @ 27.115 MHz Typically used in campgrounds and marinas, Channel 14 @ 27.125 MHz Childrens walkie-talkie frequency, Channel 15 @ 27.135 MHz Used by truckers in California, Channel 17 @ 27.165 MHz Also used by truckers in California, when heading east & west, Channel 19 @27.185 MHz Main trucker Channel, Channel 36 @ 27.365 MHz Survivalist Network, Freeband 27.3680 MHz Survivalist Network, Freeband 27.4250 MHz Survivalist Network. Out of sheer pandemic boredom, I ordered the ubiquitous Baofeng radio over the summer. Civil IES GATE TAncet PSU's Exam Notes It was intended to allow continuous broadcast of civil defense information to the public using radio stations, while rapidly switching the transmitter stations to make the broadcasts unsuitable for Soviet bombers that might attempt to home in on the signals (as was done during World War II, when German radio stations, based in or near cities, were used as beacons by bomber pilots). Signals that are transmitted and received via aviation radio can be of more than one type. The most common use of MURS channels is for short-distance, two-way communications using small, portable hand-held radios that function similar to walkie-talkies. Click Here to Get Your FREE One Year Urban Survival Plan! Save the Date: Civil Air Patrols National Conference is Aug. 17-19 in Bellevue, Washington. I hope this article has helped you expand your knowledge on prepper communication gear and strategies. We should have a least two Boafengs or other hand held radio for each AR. 5 PL to NAC Conversion Chart for Civil Air Patrol 6 Civil Air Patrol - from the RR States Database 7 Old Wideband Basic Channel Plan 8 External links New Narrowband Basic Channel Plan 'P' is appended to the channel name to designate P25 digital mode (R-01 analog, R-01P digital) New Narrowband Basic Repeater Plan Every one talks about worst case scenarios, and get themselves tons guns, yet few can talk to each other, because they will not have a radio. One of its roles is to allocate all radio bandwidths and frequencies. Mostly line of sight like you say. The 136.000 to 136.975 MHz band became available for aeronautical use on January 1, 1990. Modifications and repairs. They are only called up after RACES has been activated. However, broadcasters would typically interrupt normal programming to issue emergency bulletins, as happened during the attack on Pearl Harbor on December 7, 1941 and the first successful tornado warning in 1948. I plan on using it for local and regional comms using Near Vertical Incident Skywave propagation. Frequencies. As an Amazon associate, we earn from qualifying purchases. All FAA facilities monitor the emergency frequency, 121.5 MHz. If youre of a more technical/engineering mindset, you shouldnt have any problem figuring any of this out. FEMA is the Federal Emergency Management Association. The Civil Air Patrol, part of the U.S.A.F., is assigned 26.620 MHz, although now the CAP uses VHF frequencies more often. Folks need to take time to learn Morse code, if the SHTF we arent going to have repeaters or Internet. Within this range are 123.4 MHz and 123.45 MHz, colloquially referred to as Finger and Fingers respectively. Purchase a no test license for a about $70.00 for the entire family to use 50 watt GMRS mobile radios legally. But lately, I have been talking with other HAMS WAY far away in other States hundreds of miles away. A better option for many would be something like Midlands Dual Band Amateur Two-Way Radio. REACT Radio Emergency Associations Communications Teams. In the first video he compares his Uniden BCT15X hardware radio scanner against an Airpsy, noting that . To prevent interferance caused by multiple sites transmitting on the same frequencies, government agencies and standards organizations around the globe try to keep the usage organized and often such controls take the form of government regulations which carry the weight . In the event of an emergency, all United States television and FM radio stations were required to stop broadcasting. It can be confusing to know just where to turn the dial to during a disaster if youre new to emergency communications, however. The harmonisation of radio frequency spectrum is necessary for military alliances to work effectively. This is a good article, thank you. Similar service includes the General Mobile Radio Service (GMRS). It covers the frequencies used in aircraft systems which include LOS, VOR, GS, TCAS, ATCRBS, DME, GPS L2, GPS L5, L1 etc. If you would really like to delve into more emergency radio frequencies in your area, I highly recommend checking out the following sites: In addition, youre probably going to want to keep a copy of the ARRL Repeater Directory on-hand at all times if you are truly wanting to be prepared for a disaster situation. Broadcasters who aimed to join the Conerlad network had to upgrade their sets, in order to switch to one of the said frequencies, also adding capabilities to modulate the antenna power down to 5KW and to pulse it to zero. They would transmit for several minutes and then go off the air, and another station would take over on the same frequency in a "round robin" chain. And NOAA and FEMA are not ham radio abbreviations. were usually the State-Wing and Adjacent State Wing channels [Repeaters] (Reposted on Gab, and possibly on survivalblog.com). 123.050 MHz with 122.950 being the usual CTAF frequency of choice for airports with a tower. R-14, Splendora, Digital), Primary Repeater also used in Simplex Mode, Secondary Repeater also used in Simplex Mode, 'P' is appended to the channel name to designate P25 digital mode (R-01 analog, R-01P digital), These are Dual Mode Repeaters [Analog and P25]. The existing drone regulation (the Administrative Rules on Remote Drones) was published on 23 July 2019. A VHF 50 watt mobile used as a base station with good antenna mounted at least 15 feet high can talk to a similar mobile in a vehicle out to 30, or more miles. This page was last modified on 21 April 2022, at 20:14. A repeater with 203.5 Hz was a Temp / Tactical Repeater, Refresh this page from the latest database entry, Return to DB page: Civil Air Patrol Do you have other tips for emergency communications? Cooperation Council (GCC) Keep in mind that night is typically a time of better reception quality. In addition to communication (COM) signals, aviation radios are also used for navigation (NAV). Its not fixed in stone. That traffic has since shifted to the very high frequency (VHF) band. It conducts weekly radio check nets every Wednesday at 1600 UTC on 6765 USB, 6845 USB and 6910 USB (and likely other frequencies at other times). Kentucky Civil Air Patrol uses Ky Emergency Management - Ky National Guard in areas where the CAP coverage isn't adequate. Part of the reason is due to the fact that there is no license required to receive or transmit. They are useful services in an emergency and I dont think FRS requires a license, but Id definitely check on it before transmitting on one. RARELY those higher frequencies can provide long distance communication but this is the exception rather than the rule. Radio Amateur Civil Emergency Service (RACES) is an organization of amateur radio operators who volunteer for Emergency Management for the purpose of providing tactical emergency support radio communications to federal, state and local governments in time of emergency, and to supplement, augment or replace radio communications wherever and whenever needed. All three of Green Bay, Wisconsin's television stations (WFRV-TV, WLUK-TV, and WBAY-TV), as well as Green Bay radio stations WBAY and WJPG (and other Upper Michigan radio stations) were immediately taken off line as preparations were made for high priority stations to begin broadcasting on the two authorized CONELRAD AM frequencies (which in that area would force WOMT, a station in nearby Manitowoc at 1240 AM, off the air). [5] Transmitters could be damaged by the quick cycling. After the development of intercontinental ballistic missiles reduced the likelihood of a bomber attack, CONELRAD was replaced by the Emergency Broadcast System (EBS) on August 5, 1963, which was later replaced by the Emergency Alert System (EAS) on January 1, 1997; all have been administered by the Federal Communications Commission (FCC). This circular also describes and updates civil air traffic control frequencies in the VHF (118.000 to 136.975 MHz) band. So far, Ive only been using the radio as a police scanner, and tuning in to the local repeater. Both communication and VOR navigational systems are operated on VHF frequencies. R69 Portable and Aero Repeater Digital, Ch. The Federal Communications Commission (FCC) is an agency that regulates communications including radio in the United States. A reduction of 3 dB in magnitude corresponds to 50% reduction in power, and this has been chosen as a convenient way to identify the bandwidth. This has been my biggest fear. Click here to see FCC frequency listings for Jefferson County KY Color Legend: Blue=Motorola, Green=LTR, Yellow=EDACS Scroll down to see services other than Police/Fire/EMS Area Frequencies Anchorage Jeffersontown Louisville Shively Amateur Radio Rev. to 7615 USB, 26620 kHz USB - Nationwide 26.62 MHz 26.620 MHz. Between the two. Civil Air Patrol CAP MF and HF Frequencies, https://www.hfunderground.com/wiki/index.php/Civil_Air_Patrol, Primary repeater (input: 143.5500 MHz, various CTCSS tones or NAC codes), Secondary repeater (input: 143.7000 MHz, various CTCSS tones or NAC codes), Airborne and/or portable/tactical repeater (input 143.6250 MHz, various CTCSS tones or NAC codes), 4636 kHz USB - Net 1 - Regional primary, also a, 7615 kHz USB - Nationwide, also a nationwide, 7637 kHz USB - Net 8, alternate nationwide use, Papa Charlie Delta PCD frequency alt. Such bulletins were the forerunner to CONELRAD. I know Hutchinson has a CAP radio as it shares the same location as a ham repeater that has a Input Freq of 147.975/147.375. By law, radio sets manufactured between 1953 and 1963 had these two frequencies marked by the triangle-in-circle ("CD Mark") symbol of Civil Defense. These frequencies are available to aircraft manufacturers as they conduct test flights. While it requires a license to transmit, ham radio will allow you a range and breadth of communication that is not available post-disaster via other methods. Battery powered that can be recharged with a small solar panel. If you are near the coast or oceangoing, these are a few of the frequencies that you may want to keep handy. The ionosphere affects the high frequency (1.8-30 mhz) bands primarily, and to a lesser extent 50 mhz. In short-range wireless communications, radio frequency identification is one of the most commonly used technologies, and it is expected to play an increasing role in the future. So, in order to help with this process, below are all of the emergency radio frequencies that I know. Inbound at least 10 nm from the aerodrome or further for high performance aircraft or busy aerodromes. View this and more full-time & part-time jobs in Severna Park, MD on Snagajob. [tabs] About [callout] Rule Part 47 C.F.R, Part 95 [/callout] The Multi-Use Radio Service (MURS) uses channels in the 151 - 154 MHz spectrum range.