N3FJPSoftware / N3FJP Software73, Scott N3FJP https://www.n3fjp.com/ Serving the Amateur Radio Community with contesting and general logging software since 1997Created:
8,636 Members,
305 Topics,
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SKCC / Straight Key Century ClubMembership is free to licensed amateur / ham radio operators.Created:
8,049 Members,
43,355 Topics,
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repeater-builder / Repeater BuilderDiscussion of amateur or commercial repeaters, duplexers, antennas, feedlines, controllers, linking, etc is encouraged.Created:
5,956 Members,
45,227 Topics,
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FT-857 / YAESU FT-857 Discussion GroupPlease give your call sign if you are an amateur radio operator. Note: Many individuals join this list to find out how to modify their unit for extended transmit.Created:
5,362 Members,
11,039 Topics,
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N1MMLoggerPlus / N1MM+N1MM Logger+ (aka N1MM+) is free contesting software that supports virtually all amateur radio contests.Created:
5,359 Members,
22,744 Topics,
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Amateur-repairs / Amateur Radio RepairsEmphasis is on Amateur Radio equipment repair, modification and operation. Please, SHARE WITH US YOUR REPAIRS!. It is a great way to help others to fix their rigs. Thanks!Created:
4,921 Members,
20,445 Topics,
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DXLab / DXLabDXing is the art and science of making two-way contacts with distant amateur radio stations.Created:
4,529 Members,
49,557 Topics,
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EchoLink / EchoLinkThis facet of Amateur Radio joins the power of the internet with our radio hobby!Created:
4,458 Members,
10,037 Topics,
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XieguG90 / Xiegu G90 TransceiverThis is a group to share information and promote understanding of the Amateur Radio transceiver Xiegu G90 and how to use it.Created:
4,355 Members,
2,795 Topics,
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UDXF / Utility DXers ForumActually everything in the range of 0-30 MHz with the exception of Broacasting Stations, Pirate Stations, and Amateur Radio (with the exception of utility related activities).Created:
4,184 Members,
64,683 Topics,
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RaspberryPi-4-HamRadio / Raspberry-Pi_4_Ham-RadioThis is a place for Amateur Radio Ops to discuss the Raspberry Pi and how it can be applied to Ham Radio. This is a moderated Group. Please keep posts civil and on topic.Created:
4,156 Members,
2,557 Topics,
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ic7000**Please note** A valid amateur radio license is a prerequisite for membership. Applicants are requested to state their name and callsign; this will speed up the approval process.Created:
3,792 Members,
18,452 Topics,
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UI-View / UI-View32If you must post an off-topic message on other amateur radio related matters, please mark the posting OT and request direct replies.Created:
3,616 Members,
18,484 Topics,
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APRSISCE / APRSISCE for Windows Mobile and Win32APRSISCE/32 is intended for licensed amateur radio operators only and that privilege comes with the responsibility of identification by CALLSIGN. It's really not that hard.Created:
3,495 Members,
7,939 Topics,
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Yaesu-FT-60 / YAESU FT-60In the USA, it is against FCC regulations to use a modified amateur radio transmitter on commercial frequencies, even if you are licensed to use those frequencies.Created:
3,324 Members,
3,648 Topics,
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linuxham / linuxhamTo be approved for membership your email address must indicate your amateur radio call sign.Created:
3,165 Members,
11,394 Topics,
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irlp / IRLP Discussion GroupThis is the discussion group for the Internet Radio Linking Project - A Project to link audio from amateur radio transmitters and receivers around the earth using the internet.Created:
2,935 Members,
17,601 Topics,
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ManualExchange / Manual ExchangeGroup devoted to free exchange of service/user manuals for Instruments and RTX (Amateur/professional).Created:
2,815 Members,
7,261 Topics,
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VARA-MODEM / VARA MODEM (HF and FMThis Group is owned and moderated by Jerry, N9LYA Please state your valid amateur radio call sign in the comments section when joining this Group.Created:
2,717 Members,
1,542 Topics,
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gqrp / GQRP ClubGQRP Club (Low Powered Amateur Radio)Created:
2,481 Members,
27,726 Topics,
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radioartisan / Radio ArtisanWe support experimenters of all levels and exchange ideas about amateur radio hardware homebrewing and software development, especially involving Arduinos, Raspberry Pis, computers,Created:
2,473 Members,
3,848 Topics,
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SHARI / SHARI(SHARI is designed as a kit for construction and use in the amateur radio service by licensed amateur radio operators who can assure that their assembled SHARI kit meets FCC mandatedCreated:
2,404 Members,
831 Topics,
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TS-590 / Kenwood TS-590 Discussion GroupThis group with about 2300 members provides a forum for discussions about the Kenwood TS-590S and TS-590SG Amateur Radio Transceiver.Created:
2,311 Members,
7,048 Topics,
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glaarg-vec / GLAARG VECThe Greater Los Angeles Amateur Radio Group VEC is one of the 14 FCC-recognized Volunteer-Exam Coordinators conducting amateur radio exams.Created:
2,097 Members,
10 Topics,
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Ham-Antennas / Ham-AntennasDiscussion of amateur radio antenna systems, feedlines, matching networks, and related topics. Anything and everything, tell us or ask questions.Created:
2,075 Members,
2,089 Topics,
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FlexRadioSmartSDR / FlexRadioSmartSDRTAGS: Ham radio Amateur radio Flex radio SDR radio The group is "user owned and operated" and not affiliated with Flex Radio although employees are encouraged to participateCreated:
2,007 Members,
4,209 Topics,
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direwolf / Dire Wolf Software TNCIn the early days of Amateur Packet Radio, it was necessary to use an expensive “Terminal Node Controller” (TNC) with specialized hardware. Those days are gone.Created:
1,985 Members,
1,887 Topics,
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DRAKE-RADIOFor the sharing of information and help in repairing the Drake Radio Line of Amateur Radios. Please note.Created:
1,953 Members,
16,125 Topics,
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Elecraft-K4 / Elecraft K4 Direct Sampling Transceiver and then some!RADIO CALL WHEN APPLYING FOR MEMBERSHIP.Created:
1,944 Members,
7,343 Topics,
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hfpack / HFpackINFORMATION - HF PORTABLE - MOBILE - EMERGENCY COMMUNICATIONS - HF Pack - AMATEUR RADIO - TRAVEL - PORTABLE - BASE - MANPACK - BACKPACK - QRP - QRO - BIKE - AIR - MARINE - EQUIPMENTCreated:
1,765 Members,
953 Topics,
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MMTTY-SB-RTTY / MMTTY Amateur Radio RTTY SoftwareSince there are numerous sites dedicated to selling radio gear, we will not allow posting equipment for sale. Doing so will get you banned.Created:
1,739 Members,
243 Topics,
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larrys-list / Larry's List FYILarry's List is a group of Amateur Radio messages. This is the main group. There is sub-groups for specific topics. This group is for topic not listed as a sub-group.Created:
1,730 Members,
8,317 Topics,
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ardc / Amateur Radio Digital CommunicationsThe mission of Amateur Radio Digital Communications (ARDC) is to support, promote, and enhance digital communication and broader communication science and technology, to promote AmateurCreated:
1,728 Members,
144 Topics,
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Moon-Net / Moon-NetMoon-Net is an e-mail reflector intended for discussion and announcements concerning amateur radio moonbounce (EME) communications. Membership is open to everyone.Created:
1,718 Members,
25,383 Topics,
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GridTrackerApp / GridTracker - An Amateur Radio CommunityGridTracker by the Amateur Radio Community GridTracker : An Amateur Radio Community Please visit our Discord server for all bug reports, feature requsts and for community supportCreated:
1,695 Members,
2,439 Topics,
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ardopThe groups.io home of the Amateur Radio Digital Open Protocol.Created:
1,648 Members,
4 Topics,
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Winmor / WinLink - WINMOR Protocol, VARA FM/HF, ARDOP, PACTOR and Related Topics for WinLINK Express** The Original Unofficial User Support Group Since 2008 ** Please state your valid amateur radio call sign when requesting membership.Created:
1,578 Members,
487 Topics,
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APRS / APRS - Automatic Packet Reporting SystemThe APRS network has grown to most countries with strong Amateur Radio populations.Created:
1,550 Members,
1,063 Topics,
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hflink / HFLINKGlobal ALE High Frequency Network HFN - Amateur Radio - Ham Radio - Emergency Disaster Relief Communications - HF Interoperability - ALE Information - Software - Selcall - Digital HFCreated:
1,518 Members,
896 Topics,
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RSGBTechnical / RSGBTechWelcome to RSGBTech, an independent group open to ALL radio amateurs to discuss amateur radio related technical matters, be it a technical query or area of interest.Created:
1,511 Members,
9,130 Topics,
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steppir / SteppIR AntennasThis is THE place to ask questions and get information from owners and users of these unique, tunable Amateur Radio antennas.Created:
1,507 Members,
3,189 Topics,
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FT-991A / Yaesu FT-991 and FT-991AAlways identify yourself or your amateur call sign when you sign in. The Yaesu FT-991 Transceiver is capable of operating SSB, CW, AM, FM, Packet and System Fusion C4FMDigital.Created:
1,433 Members,
978 Topics,
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ocfd / Off-Center Fed Dipole antenna groupMake sure that your DISPLAY NAME for this group contains your AMATEUR RADIO CALL SIGN! Otherwise, membership will be DECLINED!Created:
1,428 Members,
1,417 Topics,
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Heathkit-Radios / Heathkit-RadiosWhen joining, please identify yourself as an amateur radio operator by including your call sign, (if licensed), in your profile and/or message signature line.Created:
1,401 Members,
6,901 Topics,
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Kenwood-Hybrids / Kenwood Hybrids (TS-520/530/820/830)Including your Amateur Radio Callsign if you are an Amateur Radio Operator will expedite this process. If you do not reply to this email, your membership will not be approved.Created:
1,394 Members,
2,673 Topics,
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FoxTangoradio transceiver.Created:
1,374 Members,
1,238 Topics,
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RailScan / RailScan.netIf you are an Amateur Radio operator you can also enter your info in the "RailHam Directory" here https://groups.io/g/RailScan/table?Created:
1,366 Members,
10,567 Topics,
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GenesisRadio / Genesis RadioPlease limit your messages and responses to topics related to amateur radio and Genesis radios, SDR and associated topics.Created:
1,351 Members,
7,567 Topics,
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xiegu-x6100 / Xiegu X6100 UsersWith its compact size and smart form factor X6100 brings you a brand-new experience of amateur radio. X6100 has independent baseband and RF units.Created:
1,342 Members,
1,165 Topics,
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radioprogramming / Radio Programmingto: Commercial - Land Mobile Amateur Marine CB (citizens band) This group is in English.Created:
1,318 Members,
441 Topics,
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