Active radio frequencies. This is why they’re called shortwave radio waves.

Active radio frequencies 550 5. Using a cheap Software Defined Radio (SDR), it is possible capture all of the transmission on a system. 640: WRFD Rmt: WRFD-AM (880) FM: Media: 161. These forums provide a more conversational approach to learning about new frequencies and trends in amateur radio. This website was created to help you find, scan, and identify digital radio frequencies. Voice communications are handled on a single channel simplex basis (i. The list includes both HF (High Frequency), VHF (Very High Frequency), and UHF (Ultra High Frequency) bands. They often take place on specific frequencies at predetermined The most complete database of radio communications data The frequencies in use will depend upon the time of day or night and conditions which affect radio wave propagation especially on HF frequencies. I'll give you a few frequencies to try active daily and nightly. 918 11. Also see the links page of the Utility DXers Forum home page, which has numerous military related links In addition, see these links Armed Forces Network. Get Involved Jun 17, 2024 · The Baofeng radio series, including popular models like the UV-5R and UV-82, is renowned for its versatility and affordability. 3 Feb 25, 2020 · Shortwave Frequency List: International Shortwave Radio Frequencies to Monitor. Examples of Radio Frequencies by Popular Airports. U. 010: KNBU361: RM: 203. 5 days ago · Frequency Search (e. ON April 04 about 11:50 UTC. They feature a relatively lower wavelength (hence high frequency) than conventional radio communication waves. The two are exchanged using the button marked with a double-headed arrow. Unlike passive RFID technology, active RFID tags not only receive signals from the RFID reader, but also actively transmit signals to the reader. Philippines Disaster volunteer Facebook Group To rapport new frequencies go to the end of this page and fill out the form. Mar 8, 2025 · Frequency License Type Tone Alpha Tag Description Mode Tag; 156. If adjusting for Doppler shift manually try tuning the uplink frequency while transmitting to keep the downlink frequency constant. Ham Radio Prepper - February 25, 2020. The transmitter can apply a signal using three methods: Direct Connection. Here are the instructions how to enable JavaScript in your web browser . 965 MHz, voice and image downlink 4 days ago · Active Ham Radio Satellites Frequency Guide If you are looking for information on Ham Radio Satellite, I think you will find these pages useful. ARINC continues to operate a VHF radio network (the ARINC En Route Service ) which is used mostly by smaller airlines to relay messages to their dispatchers or to establish phone patches. The definitive net directory for Ham Radio and SWL enthusiasts. 899 3. Here are some Twin Cities metro ham radio repeaters and simplex frequencies you The Arkansas Repeater Council coordinates amateur radio repeater frequencies. Mar 17, 2025 · Frequency License Type Tone Alpha Tag Description Mode Tag; 453. “Frequency,” on the other hand, refers to the actual radio waves transmitted and received by the CB radio. 1996 - 2025 by The DXZone. WWV is located near Fort Collins, Colorado, about 100 kilometers north of Denver. Vous pouvez aussi écouter une autre radio que ACTIV RADIO en direct sur notre site. 160 Meters 1. 5 MHz. 500Mhz thru 4. 101(b) of the FCC Rules states that "Each station licensee and each control operator must cooperate in selecting transmitting channels and in making the most effective use of the amateur service frequencies. Mar 11, 2025 · Frequency License Type Tone Alpha Tag Description Mode Tag; 45. , 124. Instead of scanning to a single frequency, SDR capturea wide swathes of spectrum, covering all of the frequencies a system could use. Digital Search 20 hours ago · State of California Last Updated: March 31, 2025, 07:43 am UTC. Feb 13, 2020 · When it comes to go-to radio frequencies to monitor during an emergency, some of the most productive and useful frequencies you are going to find fall within the Ham Radio bands. Louis Metro Area Scanner Frequencies and Radio Frequency Reference Nov 13, 2020 · Ultra-High Frequency (UHF) RFID. 00 MHz: BY70-8: Uplink FM: Downlink FM: Comments: BY70-8: 435. Local contacts and world-wide propagation are all possible at almost anytime with careful selection of the right frequency for the time of day, time of year, and current state of the sunspot cycle. If you’re looking for family communication during outdoor activities, preparing for emergencies, or exploring a new hobby, there’s a radio frequency and device that fits your needs. Might be handy for you if you play with Amateur radio, software defined ra Mar 9, 2025 · Frequency License Type Tone Alpha Tag Description Mode Tag; 154. e. State Frequency (MHz) Program Transmitter site Time, UTC Days Language Active Radio Aamar: 88. NIST radio station WWV broadcasts time and frequency information 24 hours per day, 7 days per week to millions of listeners worldwide. The world's largest source of public safety, aircraft, rail, and marine radio live audio streams Feb 28, 2024 · Statewide Amateur Radio (SAR) Network. radiodetection. This site will remain active as long as the recognized repeater coordinators provide support to keep the information accurate. See full list on qsl. PS we don’t Welcome to Reddit's own amateur (ham) radio club. Active frequencies are applied to a buried conductor using the transmitter. 29 Ham Radio Repeater A very active radio feed with nets three times a day: 10 AM PST(PDT) Tech Nets each weekday for questions about the hobby 12 noon check in to test your radio, get known locally 7 PM weekdays for other informative nets 7 PM Saturdays - "the Ham Shoppin: Amateur Radio 1 2 days ago · Comprehensive database of scanner frequencies and radio frequency reference for Arizona. 435Mhz: 0Mhz: 103. Aug 19, 2024 · Many ham radio communities on Facebook and Reddit allow operators from all over the world to share frequency lists and ideas on how to discover active bands. 9625: KNIP258 Welcome to Reddit's own amateur (ham) radio club. A neighbor to the AM Broadcast band just slightly higher in frequency, 160 has very similar conditions to what you hear on AM Broadcast, quite localized during the day, with long distance capability at night. Login. 900 MHz: 145. 0 MHz. S. 95Mhz Frequency Input License Tone Description Category Tag; Search the RadioReference Database ×. 2 Active Radio Today: 89. 075: 447. Click here to see statewide frequencies and information. One of the powerful features of these radios is their ability to scan for active frequencies. 620: WPSK372: RM: 100. 950 MHz: 145. We utilize available data from our own database, as well as information from surrounding states. Nets are an opportunity for Hams to get together, chat, and test equipment on the air. This is a new shortwave radio schedule website, where you can discover nearly all shortwave stations worldwide. 570 Ham radio bands, also known as frequency bands, are designated segments of the radio spectrum allocated for amateur radio use. More information is available on the individual search pages. . In general, data in any Wiki article: Browse all Amateur Radio Nets, including DMR, D-STAR, HF, SSB, nets on repeaters, ane more. State Entity Entity Type; FL Civil Air Patrol: Federal The best shortwave radio stations are the channels to help you to expand your horizons. For San Francisco Bay Area Ham Radio Repeaters, please visit the Repeater DataBase of this site. 2) Is that wide band radio or there is band switch? With wide band radio that does not have any gaps between frequencies you can have better results than with shortwave radio that has band selection, that means that several Mhz are kept out. The transmitter will then apply a discrete signal which you can locate using the locator. It forms part of the Amateur-satellite service. If you want to stay in the loop on local gossip and chitchat, your locality’s rag chew frequency might help. Please note that not all HF-GCS published frequencies are active for every EAM broadcast time slot listed below. If the station is not associated with an airport, then the lat/lon/alt values returned will be -15943°, 80°, -10000 (this means that you can simply check that the altitude value is greater than 0 to assure Mar 1, 2023 · There are 40 CB radio channels, numbered from 1 to 40, and they cover the frequency range from 26. Mar 13, 2016 · Lists all the articles about frequencies used by national, regional, state, and/or local (not just state-level) military entities in United States, as submitted by the members. 400, 128. Here’s a comprehensive list of amateur radio (ham radio) frequency bands. Oct 7, 2024 · PO-101 (Diwata-2) Active by schedule, see here for schedule updates; ISS Crossband Repeater Click here for schedule updates. 490: RM: ISS Region 2-3: Voice Region 2-3 Jul 22, 2023 · Aeronautical Radio, Inc. For full functionality of this site it is necessary to enable JavaScript. Another 8,815 entries cover all professional utility stations worldwide from our international bestseller 2025/2026 Guide to Utility Radio Stations . 471 Repeaters, 316 Sites, 135 Visual Links, 36 Coverage Maps. 995, voice and image downlink on 10455. 700: KMA376: RM An amateur radio satellite is an artificial satellite built and used by amateur radio operators. This is considered the 75/80 meter band. Mar 2, 2025 · Frequency License Type Tone Alpha Tag Description Mode Tag; 154. Also SSTV, Crew Voice, and Packet Frequencies: CRAC-01: Uplink FM: Downlink FM: Comments: CRAC-01: 435. What was once known as the Armed Forces Radio and TV Network (AFRTS) This is a List of shortwave radio broadcasters updated on Jun 4, 2024: [1] [2] By country. Jul 27, 2023 · In this article, we are going to look at different radio frequencies and their common uses. This review describes the heating facilities, past and present, and discusses scientific results from these facilities and associated space missions Jul 28, 2018 · The Utility DXers Forum is very active and is only one of many such lists; more are available on the Utility Monitoring page. Lower power will also work well. , with the aircraft and the ground station using the same frequency for transmission and reception) unless otherwise noted in Amateur radio repeater database for ham repeaters in the US, Canada, and Mexico. If you're new to RFID, you might be wondering what the difference is between these types, and which one is best for your application. For more radio frequencies from Philippines and other places in the world go to our board. 75) Site-wide search Browse Feeds Top 50 Feeds HF Oceanic Feeds Coverage Map Bad Weather Areas LiveATC FAQ Increase Coverage Frequency allocation is the FCC assignment of radio frquencies to specific services, and this page lists links to pages or documents that display those assignments. 136 – 138 MHz: This band was used heavily by many different types of satellites in the past. Voted #1 Best Radio Website (2009 Users Choice Award) Forums Map Search Database Search Live Audio Alerts Wiki Click on a state below to see frequencies and information for that state. Return to US/Canada Map Mar 3, 2025 · Welcome to Frequency Finder, a website providing details of all radio stations in England, Scotland, Wales and Ireland with features on radio transmission and history. 075: N6MVT: RM: CSQ: 162. 577 6. 5 MHz and a standby frequency of 121. Nights 2. EOTD's (End Of Train Device), also known as FRED's (Flashing Rear End Device) are fixed at the rear of most freight trains. It also supports 5 additional user definable frequencies in the range of 50Hz to 999Hz. 950 MHz: Launch TBD: TLM downlink on 145. They are not a 100% accurate representation of the band conditions. Voted #1 Best Radio Website (2009 Users Choice Award) Forums Map Search Database Search Live Audio Alerts Wiki BC Scanner Frequencies Scanner frequencies for BC province Have an update or correction ? Only the 2025 Shortwave Frequency Guide features a gigantic broadcast frequency list with 3,676 entries, and a superb alphabetical list of stations as well. We use our own standards and guidelines as well as those of the Mid-America Coordination Council. 5W FM radios. An Active DAS converts the radio frequency transmissions from the signal source signal so they can be distributed via an optical or ethernet cable. If you spot any errors in the repeater directory, omissions or inactive repeaters you can let us know about it by using the contact page. Rather, an RF mixer takes two input frequencies and generates a third output frequency via multiplication. Search by State or County to lookup FCC license data and latitude and longitude information for a range of services and companies. About the Directory: New York Repeater Directory (NYRD) was born in 2003 as an addition to the New England Repeater Directory. 0 PL: NCFPD 1: Dispatch (simulcast with Hanford Fire) FMN: Fire Dispatch: 153. 1. Loading Map. Columbus Module radio: IORS (Kenwood D710GA) – STATUS - Configured. 306 13. Mar 20, 2025 · Frequency License Type Tone Alpha Tag Description Mode Tag; 453. WA7ABU 145. 5: 103. A la recherche d'une fréquence de ACTIV RADIO? Voici la liste complète de tous les numéros de la station. In other words, a mixer performs frequency translation. 800 MHz down). Local frequencies, such as police and broadcast, are listed for those in Utah only, and Utah County in particular. 396 13. 140: WNHH873 Serving Missouri's Amateurs Since 1984 Tuesday, March 25, 2025. 100: KMA438: BM: 131. Amateur Radio Repeater Database Idaho ARRL. 342 11. net Jun 8, 2023 · For Federal/Military Users, small 0. 95. 990 MHz up {PL 67} & 437. Amateur Radio Band Chart Download (Effective Feb 23, 2007) Always refer to FCC Part 97 rules for latest information! Section 97. Transponder is only active during night passes and at weekends Please use a maximium uplink power of 5 watts to a 7 dBi gain antenna (25 w EIRP). Mar 7, 2025 · Frequency License Type Tone Alpha Tag Description Mode Tag; 161. May 11, 2024 · Amateur Radio Frequency List. 586 8. We will also examine what sets them apart from other frequencies and why it’s essential to know these differences. Understanding band usage and regulations is crucial for effective communication among ham radio operators worldwide. 000Mhz. You may see better or worse results… Mar 19, 2025 · State of Oregon Last Updated: March 19, 2025, 17:46 pm UTC. Commercial aircraft days 8. 825. Search 4 days ago · State of Florida Last Updated: March 27, 2025, 17:39 pm UTC. From Low Frequency (LF) to Very-High Frequencies (VHF), each band has distinct characteristics and propagation conditions. 8 PL: SFPD Low 1: Police Lowband Ch 1 - Backup Div 2 G H I: FM: Law Talk: 45. By. See the chart below. So, very rough rule of thumb: 20m, being in the middle, works to some extent day or night. 6800 121. com Mar 4, 2016 · Updated on July 14th, 2023 Introduction There are two kinds of RFID systems that exist- passive and active. It is a graphical representation of MUF within a 3000-kilometer range, allowing amateur radio station operators to estimate the best frequencies and paths for effective communication. Dec 31, 2023 · Table 1: The common airport radio frequencies . However, if using RadioReference aware scanners or software, you can reduce seeing or duplicating this information by scanning just the subdivisions or locations that you are interested in. With several types of receivers and homemade antennas. 980 MHz: Launch TBD: TLM downlink on 145. WWV operates in the high frequency (HF) portion of the radio spectrum. Home; Member Profile; Directory Amateur Radio in Harris County, Texas (TX) Frequency Input License Type Tone Tone In Alpha Tag Description Mode Tag; 145. 800; Uplink 144. UHF active RFID systems have a frequency range between 400 MHz and 3 GHz, with much higher read ranges of 30 to 100+ meters, along with faster data transfer rates. 800; Uplink 145. 625: This channel is used by "itinerant" businesses, or those that travel about the country. Apr 8, 2023 · By scanning through the amateur radio bands, you may discover active frequencies used by operators in your area. Vous pouvez écouter sur une page ou bien magnum la radio sur la page des indés radios New York amateur radio repeater database for ham repeaters in the US, Canada, and Mexico. 616 6. 2 PL: CentralStateHosp: Central State Hospital: FMN: Business: 463. JavaScript must be enabled to use see the real-time graphics. Welcome. Mar 13, 2025 · Due to operational changes, mergers and general changes, some railroad radio channels may be reused by the same or adjacent railroads. Coming Soon: 1. 146. They let users tune into over 100,000 radio stations. 9 PL: NWFR A1 FIRE "F1" - Back-up VHF Fireground - Areawide Primary (except Golder Ranch) 3 days ago · Find Virginia scanner frequencies and radio frequency references for the state of Virginia on RadioReference. S Amateur Radio Frequencies, usually LSB single sideband mode, can be heard from 3. They are, however, a basis for what you "can" expect with the band conditions. 99 MHz): Becomes very active About Single Frequency Maps for AM, FM, and TV The AM Maps by Frequency, FM Maps by Frequency, and TV Maps by Channel tabs on the left open searches of AM and FM frequencies, or Television channels. Nov 7, 2024 · There are several radio frequencies available to civilians, each suited to different needs and situations. Powering off for COL cable clean up on April 04. 6 Active Frequencies (FM) Radio Meghna COAST Trust, Chorfasson, Bhola Island (Bhola District) One of the best tools to forecast HF (high-frequency) propagation is the online map (chart) shown below. The purpose you use your Ham radio for can largely define the right Ham radio frequencies to listen to for you. Each band has unique characteristics, including propagation behavior, range, and ideal operating conditions. This map shows real-time radio propagation from stations operating on 11 bands between 1. 965 MHz to 27. [ May 22, 2023 ] 2m/70cm Ham And CB Frequencies Learning [ May 16, 2023 ] The Phonetic Alphabet Learning [ May 15, 2023 ] Ham Radio LSB, DSB And USB Modes Learning HF bands. It ranges from extremely low frequencies (such as those from power lines) to extremely high frequencies (x-rays and gamma rays), and it includes both non-ionizing and ionizing radiation. 5: Mount Dora, FL USA: Favorite: WC4PEM: 444. St. (ARINC) used to be the spectrum manager for company frequencies but after a corporate reorganization, ASRI is now the spectrum manager. A "master unit" combines the signals from multiple carriers and performs this conversion. State Entity Entity Type; Bureau of Land Management (BLM) 3 days ago · AMATEUR RADIO SATELLITES There are a few satellites specifically designed to be used by amateur radio (licensed) operators. These broadcast are commonly heard on HF-GCS primary frequencies plus 11244. The frequency of a radio wave is measured in hertz (Hz), which shows how many cycles of the wave occur per second. 210: KMA376: RM: 466 DPL: SCCSO GOLD: Sheriff Backup Gold-VHF C1: FMN: Law Talk: 155. Enjoy the best internet radio experience for free. I sincerely hope these tools are beneficial to you. FUNcube Website; Handbook v1. Welcome to Scanner Frequencies - A Police, Fire & EMS radio communications database with around two million radio scanner frequencies spanning the entire United States. This allows users to listen to live radio traffic, including calls for service, descriptions of suspects, and updates on ongoing investigations. Nov 24, 2020 · The RD8200 locator supports a range of active and passive frequencies. Facebook. Active radio frequency identification is an RFID technology that actively transmits signals through a built-in power source, such as a battery. The HF bands are by far the most popular bands in the amateur service. This is a Florida Statewide Linked Repeater System designed in collaboration with Amateur Radio & Florida Dept. NEW U. By far the most active ranges in North America are 43 meters (6800-7000 kHz), 46 meters (6200-6400 kHz) and 73 meters (4000-4200 kHz), with some activity in the 60 meter band (4700-5300 kHz) as well. of Transportation (FDOT). Atlantic HF Frequency Assignments Valid from March 30, 2025, 0300Z - 1100Z Air Traffic Control LDOC / Phone Patch; Primary Secondary Primary Secondary Amateur Radio Frequencies – please note: only one mode active at a time *** Current Status of ISS Stations *** FM VOICE for ITU Region 1: Europe-Middle East-Africa-North Asia. It’s great to hear that you’ve maintained your ham radio license over the years! The shift to 440 MHz for repeaters is indeed a notable change in the ham radio landscape. 200; FM VOICE for ITU Region 2&3: North and South America-Caribbean-Greenland-Australia-South Asia. Mar 13, 2024 · North American Pirate Radio Frequencies. The display shows an active frequency of 123. Apps like Scanner Radio, 5-0 Radio, and Police Scanner X are free to download.  Short Answer Passive RFID systems use tags Texas amateur radio repeater database for ham repeaters in the US, Canada, and Mexico. The display shows worldwide activity from the last 15 minutes and is automatically updated about every minute. 490 This can be observed on a map of critical frequency: see that the critical frequency is typically lowest around dawn, when the ionosphere has been in the dark the longest. Feb 25, 2025 · Frequency Input License Type Tone Tone In Alpha Tag Description Mode Tag; 145. 4125: WPLH761 2 days ago · State of Washington Last Updated: March 29, 2025, 19:00 pm UTC. 3 days ago · State of New York Last Updated: March 28, 2025, 01:59 am UTC. 800: 145. 52: This frequency is used by ham radio operators for non-repeater communications on the two-meter band; it is very busy in many parts of the country. 151. Often regarded as one of the most popular audio technology hobbies, shortwave makes it easy to pick up streams far and wide. Jun 5, 2023 · Being aware of HAM radio frequencies & Bands is an essential part of your journey of becoming a successful ham radio operator in 2025. Details for a specific satellite can be found at the end of the frequency descriptions. Shortwave bands have frequencies ranging between 3 and 30 MHz (3000-30,000 kHz). Click on a frequency or channel to generate a map of the AM, FM, or TV licensed stations in the USA that are using the specific frequency or channel. 800: 144. 070: KNCH647: B: KC F Sim TRS: Fire Dispatch (south county, simulcast from Valley TRS) FMN: Fire Dispatch With digital radio you can see the frequency display and even enter the frequency you want to tune in. 640: WYR202: WTPG Rmt: Infinity Broadcasting (was WCOL-AM) Use this page to find an Amateur Radio repeater near you in the Louisville, Kentucky, area. 4125: WPLH761: RM: 203. Though, due to time commitment and ongoing changes, I no longer keep an updated satellite list. com Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency [1] range from around 20 kHz to around 300 GHz. 200: RM: ISS Region 1: Voice Region 1: FM: Ham: 145. 89 – 24. This is why they’re called shortwave radio waves. 6750 Mar 23, 2025 · Frequency License Type Tone Alpha Tag Description Mode Tag; 858. State Entity Entity Type; Amateur Radio (Statewide or Regional) Concept of Active radio frequency identification. This will return the latitude, longitude and altitude corresponding to the indexed COM station associated with the active COM frequency. Frequencies. 2. State Entity Entity Type; Seattle (ZSE) Air Route Traffic Control Center Dec 6, 2020 · Airfield IATA IACO Designation Freq 8. State Entity Entity Type; Chicago (ZAU) Air Route Traffic Control Center Mar 27, 2023 · Shortwave radios operate on a frequency range between 3,000 and 30,000 kHz. Downlink 145. Apr 6, 2023 · How far can I communicate with amateur radio? What is high-frequency (HF) radio? What are the different modes of communication in amateur radio? What is the difference between AM, FM, SSB, and CW? What are band plans? What are the popular digital modes in amateur radio? What are the advantages of digital voice modes like D-STAR, System Fusion This listing of VHF & UHF repeater/simplex channels in the 144, 222 and 440 bands near NYC is intended to show what is currently active on each of the frequency allocations in each band. 33kHz Channel 8. Dec 5, 2024 · Popular Free Scanner Apps. Tune in and listen to ACTIVE RADIO live on myTuner Radio. This is a comprehensive guide to the CB radio frequency list and some key insights into how to use these frequencies effectively. Here in this article I’ve tried to compile all information regarding Ham radio frequencies and bands that are allocated by the FCC. OFF April 04 about 09:35 UTC. For most common emergencies within the frequency, tuning in to channel 9 will give you real-time updates but if you’re avoiding traffic and roadblocks, the popular CB channels are 17 and 19. Below, we provide a short answer to these questions and more along with a more complex, long-form answer. Below are five major international airports covered in our exploration of the practical application of airport radio frequencies. Frequency allocations vary by country and ITU region. A typical aircraft VHF radio. 025: WPGA776: RM: 162. Minnesota has 11,769 licensed ham radio operators as of January of 2022. Mixers allow signals to be shifted to higher or lower frequencies in a way that maintains the details of the signal. Jan 28, 2024 · Amateur radio enthusiasts utilize specific frequency bands allocated globally for communication. There is where we will post all new frequencies plus other radio information, since it’s easier to find what you are looking for. An active RFID system consists of a reader, tag and antenna. It originally included NYC Metro and Long Island, but has expanded to cover eastern New York. List of Satellite Frequencies by Band VHF Band. 8125: WQZT878: RM: 452 NAC: WESCOM PD1 B/U: WESCOM: Backup to S21 TG 33901 Elwood, Channahon, Shorewood, Wilmington Oct 20, 2005 · Re Most active hf I have been listening to shortwave for yrs. Click on the picture below to be redirected to RadioReference New York division! Feb 21, 2023 · The main difference between passive and active radio-frequency identification (RFID) tags is the absence (passive) or presence (active) of an internal power source. Thank you for your contribution. 170: 144. Default m ode is for cross band repeater (145. 405 MHz. Home of the world's largest radio/scanner frequency database Celebrating 28 years of no ads and no subscriber fees. What's a Net? A net is a gathering of Amateur Radio operators on a specific frequency at a specific time and day, usually on a recurring basis. 5 days ago · Frequency License Type Tone Alpha Tag Description Mode Tag; 153. Powering off for Soyuz docking on Apr 08. It’s a good thing that CB radios have 40 available CB radio frequencies & channels with 15 miles of CB channel frequency reach. Aug 21, 2023 · Frequencies listed here are used for train status within the train. 5 PL: Allen Co Fire: Fire Dispatch (Countywide) FMN: Fire Dispatch: 155. 250: KWI785: BM: 167. Satellites marked with C support uplink communication in amateur radio bands. This device is linked to the HOTD (Head Of Train Device) also known as a MARY (as opposed to "FRED"). While many repeaters have transitioned to UHF frequencies, there are still active 2-meter repeaters out there. Also some of the activity listed below is not on HF-GCS published frequencies, but on other selected discrete frequencies. 5 days ago · This Frequency DataBase contains the general Scanner Frequency list for San Mateo County, located in the San Francisco Bay Area. 0 kHz. Voted #1 Best Radio Website (2009 Users Choice Award) Forums Map Search Database Search Live Audio Alerts Wiki Scanner Frequencies for Washington State Click on a county below to see frequencies and information for that county. The Repeaters are all linked together & concentrated along the following major highways: US-1, I-95, FL Turnpike, I-4, I-75 & I-10. 016 5. Active RFID (radio frequency identification) tags are continuously operating, battery-powered sensors that gather and transmit data to a reading device. Understanding these bands is crucial for effective communication and maximizing your ham radio experience. Oct 24, 2024 · Radio Frequency Active Filters; Biquadratic Filters; Distributed Active Filters; With active circuits, losses in lumped-element components can be compensated for by the gain of active devices resulting in filters with high \(Q\). If you are wondering what Amateur Radio is about, it's basically a two way radio service where licensed operators throughout the world experiment and communicate with each other on frequencies reserved for license holders. [1] These satellites use amateur radio frequency allocations to facilitate communication between amateur radio stations. Minnesota is lucky to have an active ham radio community, including many ham radio repeaters. Downloadable Satellite Frequencies for Meteorological and Earth Observation Satellites, Updated 03-01-2023. Oct 30, 2018 · Active ionospheric experiments using high-power, high-frequency transmitters, “heaters”, to study plasma processes in the ionosphere and magnetosphere continue to provide new insights into understanding plasma and geophysical proceses. It is amazing how many frequencies are listed even in small areas! RadioReference also has live scanner feeds, where you can monitor any frequency that is online. This is the highest of any state in the Midwest with the exception of Illinois. The tuning control on the right only affects the standby frequency. Contacts That site is no longer available. Active DAS. 1 FM. 5 PL: AC IncCmdA: AC Incident Command Analog: FMN: Emergency Ops: 453. Amateur Radio Band Characteristics. Inverters can also be realized efficiently. Keep a log of the frequencies and note the times and types of activity you hear. I've been maintaining my master frequency guide for all the common RF frequencies. 8 and 54 MHz in the amateur radio service. All listings include frequencies, coverage areas, format and ownership. When there are more than one user allocated to a frequency, the nearest to midtown Manhattan is shown. Local nets: Nets are scheduled on-air meetings or gatherings of amateur radio operators. Because of these primary differences, there are several secondary differences. 4 days ago · Frequency License Type Tone Alpha Tag Description Mode Tag; 154. Shortwave radio is a world apart from your standard AM/FM frequencies. 598 5. 2 PL: CARLA 2 Link: Link - System 2 - Downtown San Francisco Mar 23, 2025 · Find the Newest Digital Frequencies! United States Digital Radio Frequency Search Tools. Joinville-le-Pont. The DXZone is one of the longest-running amateur radio sites still active on the Web. Jul 17, 2024 · Understanding the specific frequencies and channels can greatly enhance your CB radio experience, whether you’re looking to avoid interference, find active channels, or just explore what the band has to offer. These bands are internationally recognized and regulated, but specific allocations can vary slightly by country. In Direct Connection, you connect the transmitter output directly to the utility. 8-2. Some people can reflect their band to places beyond the horizon, giving them a sense of the larger world and could be a light in a lonely and dark existence. In addition, they have a fairly low infrastructure cost and a large memory capacity. May 11, 2024 · Here’s a comprehensive list of amateur radio (ham radio) frequency bands. 906 8. John F. SO-124 (HADES-R) Transponder Satellites (Click here for frequency chart, follow links for satellite details) AO-7; FO-29 (JAS-2) Due to low battery, transponder is activated by schedule in Japan and remains active until On this site, you can view various different frequencies for many different agencies. g. You can check the status and communication frequencies of all active amateur radio satellites on the following web pages: DK3WN, JE9PEL. Active in the Asia-Pacific Mar 24, 2025 · State of Iowa Last Updated: March 24, 2025, 15:41 pm UTC. State Entity Entity Type; Boston (ZBW) Air Route Traffic Control Center The electromagnetic spectrum illustration below shows the possible frequencies of electromagnetic energy. 330. 33kHz Actual Frequency Aberdeen Dyce Approach Pri VHF 119. Lower frequency bands work best at night. Los Angeles International Airport (LAX), California 3 days ago · Since 1998, a group of radio amateurs has been reviewing new sites for listing every day and evaluating the best place to list them. Higher frequency bands work best during Repeater Callsign Frequency Offset Encode Decode Nearest City Restriction (if any) NF2F: 147. For a complete list of supported frequencies, refer to the RD8200 Locator Specification datasheet from www. The COORDINATOR Reflector has also suspended operation pending identification of further need within the Amateur Radio repeater coordination community. Kennedy International Airport (JFK), New York, USA. 4 Dead ABC Radio: 89. Dec 7, 2020 · Active frequencies. Frequencies currently broadcasting are highlighted in green in the list below. 845 A police scanner is a radio receiver that can tune into the frequencies used by law enforcement agencies. 12 meters (24. 700: WPRF419 Jan 19, 2023 · Frequency Input License Type Tone Tone In Alpha Tag Description Mode Tag; 442. Due to the unique Apr 1, 2022 · So what are some shortwave radio frequencies and shortwave radio stations? USA ShortWave Radio Stations & Frequencies; Europe ShortWave Radio Stations; Shortwave is a hobby these days. Tennessee amateur radio repeater database for ham repeaters in the US, Canada, and Mexico. 0500 Aberdeen Dyce AS 121. Home of Hearham Live Repeater listing, the repeater book of open data repeaters, RepeaterSTART, the easiest way to view nearby ham radio repeaters, and DMR callsign listener. 25m, 6m, 10m, 33cm, 23cm data Louisville, KY VHF Repeaters Louisville, KY Frequency Station Language Starts/ends Days Transmitter Power Distance; 40: Time Signal: A1B: 00:00 / 24:00: Otakadoyama Tamura C: 50 KW : 60: Time Signal: A1B: 00:00 With trunked systems, the transmission are constantly hopping to different frequencies. Current Ham Radio Propagation Conditions Please note: I have had multiple inquiries about the accuracy of these charts.