The Earths surface is divided into 324 "fields", each one is 20 degrees (longtitude) by 10 degrees (latitude). 7 Grid squares Magnetic equator Moon footprint ITU zones Search: Zoom/drag the map and click somewhere to calculate the grid square, extended locator, IOTA, DXCC, CQ&ITU zones, etc. New and updated data is shown on the map in real time without need to reload or refresh the page! Tracking data is stored in the database for six months. €13. Their address: LG5-1 & LG5-3A,. Prévision propagation VHF- UHF Europe. engineered by Tom. 2050 m Gravel; Radio beacons. Table for signed worked DXCC by band 6m - 4m -. A friend who uses Logger32 told me that he was saved in the United States, not Hawaii. / OSM / Profile ZL: 7. Having recently acquired this small VHF/UHF UV-998 dual-band mobile transceiver from LEIXEN, here are some informations. 75 sec) into the map to determine the QRA locator. Sporadic-E clouds. In the early days of VHF, you could get awards for how many counties you worked from your location, and in fact you still can. Line 3: Alternatively, geographic coordinates and QRA locator + number of satellites received Line 4: Altitude, speed and heading. Maidenhead Locator Squares By John Desmond, EI7GL What is a Locator Square? If you are new to radio or the VHF bands, you may not be familiar with locator squares. 6 NM to field; In the 1970s. Queensland Fire and Emergency Services has an interactive map of Queensland on their website with information on current incidents and the level of warning in each location:. DX-Sherlock - QSO real time maps and listings - Shows QSO and SWL in real time, taking data from many different sources (DX-Cluster, WSPR, Reverse Beacon). Virtual radar tracking. on a map. Geog UK terrain heights. XBS-TELECOM. About this app. This was the QRA-Locator<br />. QTH Distance Map Europe. Great Circle Calculator. And in its final form the QRA-Locator consisted of a five-character code, viz. New features have been added, such as: - search by QRA locator on 6 or 8 characters. The data values for power, height, gain, dir can be converted using the table below, or they can be calculated: power = the square root of your power. This interface is designed to be used with a 5 wire cable to the computer side, RD, TD, RTS, CTS and GND. Blueetooth : The tracker can be used in conjunction with APRSDroid software (Android only) via Bluetooth and the KISS protocol. The RDZ_TTGO receiver is autonomous because it displays all the necessary informations, namely: - GPS data transmitted by the radiosonde (Lat, long, altitude, temperature, humidity) - GPS data of the position of the TTGO receiver. We would like to show you a description here but the site won’t allow us. There are three regional IARU organizations corresponding to the three ITU Radio Regions: Region 1 — Africa, Europe, Middle East, and northern Asia. QRA locator map - Rain Scatter map - et plus. HAM Wall Maps Special Offer. QRA locator map; Carte RS Europe; Circular SWR ruler; APRS; Arduino. This link is listed in our web site directory since Sunday Sep 5 2010, and till today " SK6AW Maidenhead Locator Conversion " has been followed for a total of 1133 times. How about the IARU Locator Map of Europe, used to be published by the RSGB. The Maidenhead Locator System is a geographic co-ordinate system used by amateur radio operators. No need internet access or mobile. DR2W. If you’re creating a map about a hilly area, it’s helpful to show a shaded relief. 39-41MHz 8m. 7 Grid squares Magnetic equator Moon footprint ITU zones Search: Zoom/drag the map and click somewhere to calculate the grid square, extended locator, IOTA, DXCC, CQ&ITU zones, etc. Entering a QTH locator in the search box will move the map to the. Listen to stations calling on the experimental 8m band 40. Permissions beyond the scope of this license may be available at. Joined: Tue Sep 19, 2017 2:09 pm Posts: 316 Location: Llandeilo IO71. QRA Locator Wall Map Europe Version 3. The QTH locator (or Maidenhead locator) is a handy and compact way of transmitting geographical coordinates used by radio amateurs. This link is listed in our web site directory since Wednesday Oct 6 2004, and till today "QRA to Lat/Long converter" has been followed for a total of 1547 times. The other possibility of course is to take the ZX81, a 12 volt television and battery cassette player with you to. More information on how to create your own application, use hi-res picture or include WRC in other applications will follow. QRA Locator Wall Map Europe Version 1. TK5EP's QRA locator (and more). Geog is a suite of programs written by Andy Talbot. This Amateur ham radio QTH locator grid square calculator tool converts. Airport information including flight arrivals, flight departures, instrument approach procedures. Geog is a suite of programs written by Andy Talbot. 00. Ham radio tools, bearings and distances calculators category is a curation of 12 web resources on , NS6T's Azimuthal Map, DXCC List with your beam headings, IOTA Bearing & Distance list for your QTH. General information include capital of South Africa, currency and conversion rate of South Africa currency, Telephone Country code, exchange rate against US Dollar and Euro. Leaflet | Map tiles by Carto, under CC BY 3. Add to cart QSL Cards. flat earth's curvature. New features have been added, such as: - search by QRA locator on 6 or 8 characters. The system is based on the WGS84 co-ordinates and each 10° latitude x 20° longitude field is in turn divisible into a. The IARU Locator (also known as the QTH Locator or Maidenhead Locator System) is based on a division of the globe, by latitude and longitude, into an 18 x 18 grid with origin (AA) at (90°S, 180°W). gridlocw grid locator for windows in the pascal-based environment of delphi. QTH Locator maps . It has been developed for a course on Visual Basic as an example. Salons-Concours etc. The data values for power, height, gain, dir can be converted using the table below, or they can be calculated: power = the square root of your power. GridLocW - a Lat/Long. At the Region 1 Conference in Malmo (1963) the system was refined by introducing a third sub-division, and in its final form the QRA-Locator. Argus d'avril 2020 . 89/10. SIM800L. QRA locator map; Carte RS Europe; Circular SWR ruler; APRS; Arduino. Great Circle Calculator. The first section is fed at its end and resonates on the highest band (shortest wave length), the 20 m. This link is listed in our web site directory since Sunday Dec 25 2005, and till today " Great Circles & QRA Locator Online " has been followed for a total of 3717 times. You can also use this service to find your QTH/QRA locator (or your grid square) by simply pointing at a location on the map. Great circles qra locator map. QRA Locator Map and this item does two jobs in one. XBS-TELECOM. The QRA locator is considered defunct, but may be found in some older documents. Summits on the Air Mapping Page offers a dynamic, zoomable Locator grid map. NDB: 316 "UTI", 252°/4. 2) The ground all around the antenna over a large number of wave length, typicaly > 2 for a quarter wave vertical. QRA-L ocator map, while at the Region 1 Conference in Scheveningen the system was re-baptised with the more appropriate name QTH-Locator. Salons-Concours etc. You can also use this service to find your QTH/QRA locator (or your grid square) by simply pointing at a location on the map. You don't have to use a hi-res picture, it will be scaled to 600x600 pixels anyway. 77. QTH Locator and IARU Locator) is a geocode system used by amateur radio operators to succinctly describe their geographic coordinates, which replaced the deprecated QRA locator, which was limited to European contacts. The main advantage is that the coordinates are expressed with very few characters and this is good for operating in CW. To facilitate this, following the growth of the sport in the 1950s, the German QRA locator system was adopted in 1959. The EZ QRA Locator softawre is a simple software for the calculation Great Circles & QRA Locator: Great circles qra locator map. - a tool for measuring distance and azimuth. Once the HAAT value is obtained, it must be converted to feet (feet = m x 3. Utile per le stazioni CB e per i BCL per determinare la posizione precisa della stazione radio in cui si opera. The shapes of the borders are not exact, but the map enables you to get an impression where the grids are. Location in the Johannesburg area. - a tool for measuring distance and azimuthNew and updated data is shown on the map in real time without need to reload or refresh the page! Tracking data is stored in the database for six months. Maps. Return. At the Region 1 Conference in Malmo (1963) the system was refined by introducing a third sub-division, and in its final form the QRA-Locator. The Natural Area Code, or Universal Address, is a proprietary [1] geocode system for identifying an area anywhere on the Earth, or a volume of space anywhere around the Earth. orLanguage links are at the top of the page across from the title. / Position SelectedQTH. Version: 1. The transponder has an uplink on 2. DR2W. Add to cart HAM Wall Maps. g. Great Circles & QRA Locator. WinGrid Ver3. Ham Radio Wall Maps . Enter full National Grid Reference: A full 8-character NGR is required (e. Login is required for additional detail. New and updated data is shown on the map in real time without need to reload or refresh the page! Tracking data is stored in the database for six months. The Maidenhead Locator System (a. Great Circle Calculator. Hello to all ! Unfortunately, Log4OM does not take QRA Locator into account. More information on how to create your own application, use hi-res picture or include WRC in other applications will follow. The last QRA locator map no longer uses any API functions or Google maps. This link is listed in our web site directory since Saturday Sep 6 2014, and till today "Dx-cluster map" has been followed for a total of 2745 times. The QTH locator (or Maidenhead locator) is a handy and compact way of transmitting geographical coordinates used by radio amateurs. DR2W. engineered by Tom. speaker/headphones without using browserFor example, QRA locator map for VHF/UHF contest. DXCluster & RBN list; DXCluster map; RBN map; DXCluster azimuthal map; RBN azimuthal map; RBN graph; FT8 graph; Locators; The map contains data for the last 15 minutes. 0. Distributeur Matériel OM. My scripts "WW locator map" and "Rain scatter" since offered a limited map with very few details. program to make Great Circle maps from any location. The main category is Live DX Cluster Maps that is about DX Maps. 76 = 52. GcmWin Great Circle Map. Burma – See Myanmar . And in its final form the QRA-Locator consisted of a five-character code, viz. This page is a short description of the four phased verticals system i've build and used. The system can describe any location in the world. QSL: BUREAU, DIRECT OR LOTW. on a planar surface created by a particular map projection. Enter with no spaces between characters. 1 - 0. When the term 'grid square' is used, it can refer to a square with a side length of 10 km (6 mi), 1 km, 100 m (328 ft), 10 m or 1 m, depending on the precision of the coordinates provided. height = ln (HAAT/10) (ln = log neperian) In both cases, choose the closest value. Great circles qra locator map. ) It is worth considering why any locator system at all is felt to be necessary. . This letter denotes. John Morris, G4ANB, originally devised the system, and a group of VHF managers, meeting in Maidenhead, England in 1980, adopted it. )Two standard sizes are available : Small : 650mm x 910mm (13€) Largee : 910mm x 1280mm (19€) A Lamination option is available (+6€) and is highly recommended. Not every software is handling all these signals, but only the TD, TD and GND. Calendrier REF 2023. Web DXCluster Map by HA8TKS DX Cluster call callsign qra locator maidenhead. info preview/table/map of WebSDR, OpenWebRX & KiwiSDRs KiwiSDR map/player for Android by frantsch KiwiSDR sound client for Mac by Black Cat Systems; On Mac, stream directly from Kiwi to virtual audio or output device, e. Marker: ( 0 hams) Notes: The station locations depicted on this map are randomized by +- 0. XBS-TELECOM. (C) F6FVY 2007 - 2014 Updated by F5UKW (API V3) - Click on the map or locate the entered QTH locator (2, 4 or 6 chars) : DXBeam antennas. Maps. 39-41MHz 8m. Quantitative risk analysis (QRA) is a technique for quantifying the risk that a particular process or operation poses to an individual and population. The transmit frequency can be the same (simplex) or different (duplex) from the receive frequency. Miller landed on Germiston Golf Course and thought the area close by would be suitable as an airfield due to its location near to. QRA locator map; Carte RS Europe; Circular SWR ruler; APRS; Arduino. Clear searchQTH en GPS Locator. For example, WP67j is the QRA locator or 1 he author's station. Based on a work at this link. This window shows the same information and provides further features. You can also use this service to find your QTH/QRA locator (or your grid square) by simply pointing at a location on the map. Ham Radio Maidenhead Grid Square Locator Geocoding with Google Maps by HA8TKS. × NEW January 2023 Update: Changed elevation data provider, updated cache control. In our locator maps, that’s a click away. You must at first set your home location ! To do this, move the cursor to your home location, click on the map and a dialog box will open. In totale il WW-Locator suddivide la Terra in 18. - new Maidenhead locator grid display with up to 8 characters. The data values for power, height, gain, dir can be converted using the table below, or they can be calculated: power = the square root of your power. You can also use this service to find your QTH/QRA locator (or your grid square) by simply pointing at a location on the map. Argus d'avril 2020. 00 European QRA Locator Map (V3) for Radioamateurs, ideal for the shack. The main category is Grid square, beam headings, maps that is about Grid square ham radio maps and great circle software calculator bearing. As a radio transmitter or receiver location system the QRA locator is considered defunct, but may be found in many older documents. Find your Maidenhead Locator (Gridsquare) or Worked All Britain Square by using your postal address. 1959 a code system was adopted for giving the location of a station. We see that for having an efficient vertical antenna, we. You can zoom the map with the help of the mouse wheel or the control on the upper left part. Inside (click to enlarge)Quick Reaction Alert, known as QRA, is a state of readiness and modus operandi of air defence maintained at all times by Nato allies. QRA-L ocator map, while at the Region 1 Conference in Scheveningen the system was re-baptised with the more appropriate name QTH-Locator. Internet Explorer does not admit floating frames or it's not configured to show them. Maidenhead/QTH Grid Square Locator - K7FRY; TK5EP's QRA locator (and more) map; WW LOCATOR GRID SQUARE QTH FOR HAM RADIO -IZ3MEZ; Es'hail-2 (QO-100) Dish Pointing; NS6T's Azimuthal Map; COTA Map; IOTA Map (looks like it is offline) SOTA Atlas; SOTA Map; Amateurfunkspaß für drinnen und draußen 1. Based on a work at this link. The data is automatically updated every 60 second. Con tale termine, che sostituisce quello di QRA Locator e di QTH Locator, si intende un sistema per individuare la posizione geografica (un'area e non un preciso punto geografico) di una certa località del globo o nel nostro caso di una stazione radioamatoriale. 11. qld. AOR, YAESU, COMET. Airport information including flight arrivals, flight departures, instrument approach procedures. On the reporting tab, just check the checkbox to enable PSK Reporter Spotting. <== click in profile to relocate map / identify obstacle. Lamination. 00 No tax. Prévision propagation VHF- UHF Europe. No need internet access or mobile network. In the meantime it had become very<br />. " If you have your exact latitude and longitude entered, you can click the "up" arrow to populate the grid into the locator field. IRLP Overlay For Google Earth; Echo Link Overlay For Google Earth; APRS Overlay For Google Earth; MMSSTV-decode by PC; MMTTY-RTTY decode by PC; EasyPal-digital SSTV decode by. height = ln (HAAT/10) (ln = log neperian) In both cases, choose the closest value. 680MHz USB. Réseau des Émetteurs Français. Add to cart HAM Wall Maps Special Offer. TK5EP Corsica. a. Salons-Concours etc. Geog is a suite of programs written by Andy Talbot. Maps. QTH Locator and IARU Locator) is a geocode system used by amateur radio operators to succinctly describe their geographic coordinates, which replaced the deprecated QRA locator, which was limited to European contacts. Once the HAAT value is obtained, it must be converted to feet (feet = m x 3. More information on how to create your own application, use hi-res picture or include WRC in other applications will followEuropean QRA Locator Map (V3) for Radioamateurs, ideal for the shack. This calculator works for all locations in the United Kingdom. 00. Saint Helena is a volcanic island in the south Atlantic which is situated on the mid-Atlantic ridge and is over 1,200 miles from the nearest landmass. We used the QRA detection scheme of Kornhuber et al. k. Line 5: Last APRS station received Line 6: Battery charge status. Joined: Tue Sep 19, 2017 2:09 pm Posts: 316 Location: Llandeilo IO71. program to make Great Circle maps from any location. com is pretty a safe domain. Great Circles & QRA Locator. Entering a QTH locator in the search box will move the map to the. Assess the failure frequencies and probabilities of all LoCs. Garry gave his QRA locator as IH74DB. (In some cases, squares adjacent to a Grid Zone Junction (GZJ) are clipped, so polygon is a better. QRA locator map - Rain Scatter map - et plus. The locator is a string of four or six characters that defines "squares" on the earth surface. The Maidenhead Locator System (a. HB9RG, VHF Manager of USKA, showed the first prints of the Region 1 QRA-Locator map, issued on four sheets and made through his good. Maidenhead Locator Latitude Longitude. Rerun the NØUK Maidenhead Grid Distance & Bearing Calculator. Summaries 144 MHz in Europe. Budget QSL cards for radio amateurs. Enter your Maidenhead Locator (All six characters) Enter the remote locator (All six characters) and then. Quantitative risk assessments can be used to map risks and to ensure safe and efficient operations as initial safety barriers degrade over time, modifications to an asset are made and the risk picture changes. Data safety. 11. Property. QTH Locator maps . 00. program to make Great Circle maps from any location. / OSM / Profile ZL: 7. You can also use this service to find your QTH/QRA locator (or your grid square) by simply pointing at a location on the map. The first map displays the fields (first two letters of a maidenhead locator) while the second includes also squares (third and fourth digit) and it can be useful to determine what is your ham radio grid square. The "or. Great circles qra locator map. height = ln (HAAT/10) (ln = log neperian) In both cases, choose the closest value. Grid square: Locality: Country: Enter 6 character grid square or Enter locality or Click on the map! AD. MapQuest is more than just a map service. Argus. Example with the KH6M station operating from Florida, from EL96 locator. GcmWin Great Circle Map. GridLocW - a Lat/Long. - display of the grayline with permanent updating. Réseau des Émetteurs Français. €43. All of the necessary conditions for the QRA event were met for the free wave with zonal wave number k ≈ 6. DXCenter DX Cluster - Online world map with live updates from the DX Cluster network, displaying new spots on the maps as they appear. VOACAP QTH Locator. This link is listed in our web site directory since Sunday Sep 5 2010, and till today "SK6AW Maidenhead Locator Conversion" has been followed for a. Antennas_manufacturers About Rtty mode Audio Recording Amplifiers Antennas Satellite Amateur Television ATV Aprs software Beacon Band Plan Ham Radio Capitals Europe DX cluster softwareThe Maidenhead Grid Locator system (also QTH) is a geographic co-ordinate system used by amateur radio operators to succinctly describe their location. This link is listed in our web site directory since Wednesday Jan 8 2020, and till today "Interactive Ham Radio Locator Map" has been followed for a total of 1338 times. Enter the "Remote TCP host address" and "Remote TCP port" you defined in the Arduino rotator_settings file. In the meantime it had become very<br />. On-Line database of VHF & up QSO. Maps. Great Circles & QRA Locator. hu:7373 Find and browse HAM Radio WW Locator QTH. Oct 18, 2023. Le programme EZ QRA Locator est un programme simple de calcul du QRA Locator. Wenn Sie wissen möchten, ob wir Daten für die Länder bereitstellen, in denen Ihre Kunden ansässig sind, können Sie unten entweder eine Option für unsere interaktive Weltkarte auswählen oder einfach den Namen des Landes bzw. LINKS. Terry VK5TM Reply Quote « Next Oldest | Next. The United States usually refers to Quick Reaction Alert as 'Airspace Control Alert'. The data values for power, height, gain, dir can be converted using the table below, or they can be calculated: power = the square root of your power. In our locator maps, that’s a click away. You have multiple display choices like satellite maps, daylight curve, bearing calculator and distance between 2 points. The assumptions made as part of the original risk assessment may no longer be valid. The scale is 1 - 10, with 1 being poor and 10 being excellent. QRA locator map; Carte RS Europe; Circular SWR ruler; APRS; Arduino. €13. The Earths surface is divided into 324 "fields", each one is 20 degrees (longtitude) by 10 degrees (latitude). The data values for power, height, gain, dir can be converted using the table below, or they can be calculated: power = the square root of your power. a. Klik hier voor full screen. . AE. HL. 050 MHz = 20,20 m. This was the QRA-Locator system, devised in Germany, originally based on a two-stage sub-division of geographical longitudes and latitudes starting from the Greenwich meridian and from 40 degrees North. Colour QSL Cards for Radio. Zurück. More information on how to create your own application, use hi-res picture or include WRC in other applications will follow. flat earth's curvature. Distributeur Matériel OM. OF_1. AF. Main features: All european countries. I need to make a locator for UK addresses and I know Open Street Map has very good data for the UK, I was wondering how I can convert the data for house addresses, which is in xml form, into a locator in Arcmap. g. The main reason is pure convenience. AOR, YAESU, COMET. There have been several evolutions since, with a peak activity of a dozen repeaters ! By now, only 5 are currently active. is licensed under a Creative Commons. The circuit in test - with ARDUINO UNO. Add to cart HAM Wall Maps. Show Hams Auto Center Sub-squares Hams 0. Inspection of a QRA locator map will show that the most westerly locator likely to be encountered (on the west coast of Eire) will contain the first letter 'U'. Poiché la lunghezza dei meridiani è costante mentre la lunghezza dei paralleli varia con la latitudine, i rettangoli non hanno tutti le stesse dimensioni. QTH Locator and IARU Locator) is a geographic co-ordinate system used by amateur radio operators to succinctly describe their locations, which replaced the deprecated QRA locator that was limited to European contacts. A locator is essentially a map reference, allowing the position of a station to be easily and concisely transmitted. 77. For example, QRA locator map for VHF/UHF contest. Radioamateurs du Dpt. This article is a guide to building an APRS LoRa network using OE5BPA software. HamCalc v1. Summaries 144 MHz in Europe. HTF. GridMapper - Grid and Station Locator - V. GridLocW - a Lat/Long. This brochure map of Quadra Island is readily available on Quadra Island and at Visitor Information Centres across Vancouver. 10,120 MHz = 14,07 m. (604) 897-4616 604-897-4616 Greater Vancouver, Fraser Valley & Sea to Sky Vancouver IslandMap multiple locations, get transit/walking/driving directions, view live traffic conditions, plan trips, view satellite, aerial and street side imagery. QRA locator map; Carte RS Europe; Circular SWR ruler; APRS; Arduino. The data is automatically updated every 60 second. / Position SelectedQTH. <== click in profile to relocate map / identify obstacle. It represents a location on the surface of the Earth, within the context of a separately specified country or territory. Position MyHomeQTH. Natural Area Code. QTH Locator maps. [1] Maidenhead locators are also commonly referred to as QTH Locator, grid locators or grid squares, despite having a non-square shape on any non- equirectangular cartographic projection. Great Circle Calculator. 11. On the general tab, you should enter your callsign and your locator. HTF. Our maps our printed in high definition on quality coated paper using pigmented inks which don't fade. 20. HTF. The Maidenhead Locator System replaces the older QRA locator system with one that is usable outside Europe. You must at first set your home location ! To do this, move the cursor to your home location, click on the map and a dialog box will open. As a radio transmitter or receiver location system the QRA locator is considered defunct, but may be found in many older documents. They are embedded within the Swanwick Centre run by NATS, the UK’s main civil air services provider. The QRA locator, also called QTH locator in some publications, is an obsolete geographic coordinate system used by amateur radio operators in Europe before the introduction of the Maidenhead Locator System. - search by address, location. - search by address, location. The QRA locator, also called QTH locator in some publications, is an obsolete geographic coordinate system used by amateur radio operators in Europe before the introduction of the Maidenhead Locator System. 77. China, The Republic of – See Taiwan (Province of China) . You can zoom the map with the help of the mouse wheel or the control on the upper left part of the map. com in a single category. €13. On the map below you can see schematic location of the sectors on continents. Large cities. Don't be bothered by the Google warning window at startup,. on a map. com The Maidenhead Locator System (a. Originally, digital transmission was carried out using the Packet radio. 00 HTF offer : two radio amateur wall maps with a choice of options and sizes. In the log it was saved as Hawaii. 14 Economy QSL cards. Telephone: 0800 040 7766. QRA-L ocator map, while at the Region 1 Conference in Scheveningen the system was re-baptised with the more appropriate name QTH-Locator. This app displays the current value QTH Locator, calculated based on the geographical coordinates obtained from the satellites of the GPS system, mobile network, Wi-Fi. Hits: 94441. The IARU Locator (also known as the QTH Locator or Maidenhead Locator System) is based on a division of the globe, by latitude and longitude, into an 18 x 18 grid with origin (AA) at (90°S, 180°W). You can change it using Ctrl-R. Salons-Concours etc. Need to find out a Maidenhead Locator quickly before going and operating somewhere. Recente berichten Nieuwe RTL-SDR Blog V4 dongle; TX Factor Episode 29; Remote Direction Finding DragonOS KrakenSDR;QRA Locator Map; RADIO PROGRAM DOWNLOADS. - new Maidenhead locator grid display with up to 8 characters. Resources listed under Beam Headings category belongs to Operating Aids main collection, and get reviewed and rated by amateur radio operators. Click on the map to get NGR: National Grid Reference: Easting: Northing: Zoom to OS 1:25,000 map. Read user reviews (1) World Grid Square QRA Locator Map for Radioamateurs, ideal for the shack. QTH Locator and IARU Locator) is a geocode system used by amateur radio operators to succinctly describe their geographic coordinates, which replaced the deprecated QRA locator, which was limited to European contacts. Calendrier REF 2023. This may be old news, but stumbled across this QRA Locator map today CONVERTOR by TK5EP (2014).