Automatic Packet Reporting System APRS beacon transmitter with GPS receiver. Automatic Packet Reporting System (APRS) is an amateur radio-based system for real time tactical digital communications of information of immediate value in the local area. In addition, all such data is ingested into the APRS Internet System (APRS-IS) and distributed globally for ubiquitous and immediate access. Along with messages, alerts, announcements, and bulletins, the most visible aspect of APRS is its map display. Anyone may place any object or information on his or her map, and it is distributed to all maps of all users in the local RF network or monitoring the area via the Internet. Any station, radio, or object that has an attached GPS is automatically tracked. Other prominent map features are weather stations, alerts and objects and other map-related amateur radio volunteer activities including Search and Rescue and signal direction finding. History Network overview Positions/objects/items Status/messages
Repeaterbook.com - Home APRS: Automatic Position Reporting System GB4000 Frequency Machine - All Rife Frequencies APRS Database Access Short Wave and Ham Radio Frequencies and BandPlans Calling and Simplex Frequencies -- From 160M To Daylight Considerate Operator's Freq Guide - Who's Operating Where? - Or Should Be -- Includes DX Windows ITU Regions -- From The ITU Part 97 -- From The ARRL Modulation Types -- AM, SSB, FM, Pulse, etc Modulation Types -- From The ITU -- Authorized frequency bands, Frequency sharing requirements, Authorized emission types, Emission standards, RTTY and data emission codes, SS emission types. Repeater Band Plans, USA -- From SHARKK Repeater Guides -- World Wide -- From Alaska To Zimbabwe LowFers - 137 kHz Report - From VE7SL Aviation General Aviation Monitoring Tutorial -- From N4JRI Military Aircraft Monitoring -- -- From N4JRI AirNav Homepage -- Loaded with Aviation Frequencies, Articles, Software -- much more Airport Information --By identifier or city/state NAVAID Frequencies -- US Aviation NDBs Data Base NDB's (Non Directional Beacons) - The Art of NDB DXing (link will hopefully come back soon) NDB's (All About) From Wikipedia
OpenAPRS - Google Maps APRS Radio Spectrum Allocation | Federal Communications Commission The radio spectrum is the radio frequency (RF) portion of the electromagnetic spectrum. In the United States, regulatory responsibility for the radio spectrum is divided between the Federal Communications Commission (FCC) and the National Telecommunications and Information Administration (NTIA). The FCC, which is an independent regulatory agency, administers spectrum for non-Federal use (i.e., state, local government, commercial, private internal business, and personal use) and the NTIA, which is an operating unit of the Department of Commerce, administers spectrum for Federal use (e.g., use by the Army, the FAA, and the FBI). Within the FCC, the Office of Engineering and Technology (OET) provides advice on technical and policy issues pertaining to spectrum allocation and use. Download the FCC Online Table [Word | PDF] (8/31/16) Download the latest FCC Allocation History File [Word | PDF ] (8/31/16) Other useful links are:
APRS-IS QRZ Callsign Database Search by QRZ.COM About the search types:(available to logged-in users) by Callsign Use for callsigns, aliases, prefixes and suffixes. by Name/Addr A random text search. In Biography A random text search. by USA County Enter a county name and optionally, a comma followed by a 2-letter state code. by Grid Square Enter a 4 to 6 character Maidenhead Grid Square, e.g. by DXCC Choose a DXCC Entity (country) to list. Notes: All punctuation is ignored and, upper vs lower case characters make no difference. An alias can be considered a "nickname", previous callsign, etc.. Don't see what you were looking for? Check out the Site Menu for more choices.
Ham Radio Operating Modes CLOVER -- From Hal Communications Feld-Hell Club - Promoting the Hellschreiber mode - 418 Members Packet Software -- Several to choose from Tucson Amateur Packet Radio -- TAPR, All About Packet, APRS, DSP, Kits & projects North American Digital Systems Directory -- From TAPR Superb Packet Tutorial -- by Larry Kenney, WB9LOZ Packet Radio Training Course -- From The Ventura County ARES AREA 6 Training Group Still Another FB Packet Tutorial -- Buck Rogers K4ABT Amateur Packet Radio Gateways -- World Wide PacketZone -- From Jan, DG1LJP - portal for Packet Radio-Users and offers a lot of links. Packet Glossary -- The Original By Buck Rogers K4ABT TAPR & Packet Mail List Reflector -- Subscription Info PACTOR NEWS -- Phil Sussman - N8PS PACTOR-II -- SCS Home Page -- The Works - includes a FB FAQ HF Packet BBS's -- Try The Following Frequencies 14,105.5, 14,095.2, 10,149.25, 10,147.25, 7091.5 and 7103.5 North American Digital System Directory -- BBS, DX Packet Clusters, Nodes, Maps RTTY Software
HamExam.org: Free Amateur Radio Practice Tests with Flash Cards