N3FJPSoftware / N3FJP Software73, Scott N3FJP https://www.n3fjp.com/ Serving the Amateur Radio Community with contesting and general logging software since 1997Created:
8,656 Members,
303 Topics,
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SKCC / Straight Key Century ClubMembership is free to licensed amateur / ham radio operators.Created:
7,979 Members,
42,954 Topics,
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repeater-builder / Repeater BuilderDiscussion of amateur or commercial repeaters, duplexers, antennas, feedlines, controllers, linking, etc is encouraged.Created:
5,940 Members,
45,003 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:
5,397 Members,
11,022 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,
22,341 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:
4,965 Members,
20,344 Topics,
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EchoLink / EchoLinkThis facet of Amateur Radio joins the power of the internet with our radio hobby!Created:
4,800 Members,
10,008 Topics,
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DXLab / DXLabDXing is the art and science of making two-way contacts with distant amateur radio stations.Created:
4,631 Members,
49,282 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:
4,282 Members,
2,763 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:
4,191 Members,
2,547 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:
4,155 Members,
64,316 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:
3,820 Members,
18,435 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:
3,668 Members,
18,476 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:
3,536 Members,
7,929 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:
3,376 Members,
3,642 Topics,
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linuxham / linuxhamTo be approved for membership your email address must indicate your amateur radio call sign.Created:
3,179 Members,
11,325 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:
2,981 Members,
17,574 Topics,
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ManualExchange / Manual ExchangeGroup devoted to free exchange of service/user manuals for Instruments and RTX (Amateur/professional).Created:
2,834 Members,
7,249 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:
2,709 Members,
1,495 Topics,
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gqrp / GQRP ClubGQRP Club (Low Powered Amateur Radio)Created:
2,474 Members,
27,594 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:
2,472 Members,
3,820 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:
2,348 Members,
815 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:
2,317 Members,
6,992 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:
2,094 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:
2,040 Members,
1,995 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:
1,977 Members,
1,864 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:
1,964 Members,
3,980 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:
1,955 Members,
15,884 Topics,
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Elecraft-K4 / Elecraft K4 Direct Sampling Transceiver and then some!RADIO CALL WHEN APPLYING FOR MEMBERSHIP.Created:
1,905 Members,
6,939 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:
1,793 Members,
941 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:
1,776 Members,
239 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:
1,716 Members,
8,081 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:
1,700 Members,
2,439 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:
1,652 Members,
24,983 Topics,
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ardopThe groups.io home of the Amateur Radio Digital Open Protocol.Created:
1,643 Members,
4 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:
1,598 Members,
131 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:
1,594 Members,
482 Topics,
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APRS / APRS - Automatic Packet Reporting SystemThe APRS network has grown to most countries with strong Amateur Radio populations.Created:
1,536 Members,
971 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:
1,521 Members,
883 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:
1,514 Members,
9,075 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:
1,510 Members,
3,355 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:
1,429 Members,
955 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:
1,421 Members,
6,768 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:
1,419 Members,
1,413 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:
1,383 Members,
2,574 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:
1,378 Members,
10,559 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:
1,361 Members,
7,565 Topics,
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FoxTangoradio transceiver.Created:
1,352 Members,
1,190 Topics,
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Ham-Pi / HamPiNet for amateur radioCreated:
1,305 Members,
769 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:
1,301 Members,
1,092 Topics,
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