Publicly Listed Groups (by Popularity)

N3FJPSoftware / N3FJP Software
73, Scott N3FJP http://www.n3fjp.com/ Serving the Amateur Radio Community with contesting and general logging software since 1997
Created:
7,726 Members, 270 Topics, Public Archive, Last Post:
SKCC / Straight Key Century Club
Membership is free to licensed amateur / ham radio operators.
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6,511 Members, 38,808 Topics, Private Archive, Restricted, Last Post:
FT-857 / YAESU FT-857 Discussion Group
Please 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.
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5,798 Members, 10,714 Topics, Public Archive, Last Post:
repeater-builder / Repeater Builder
Discussion of amateur or commercial repeaters, duplexers, antennas, feedlines, controllers, linking, etc is encouraged.
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5,514 Members, 41,093 Topics, Public Archive, Last Post:
EchoLink / EchoLink
This facet of Amateur Radio joins the power of the internet with our radio hobby!
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5,033 Members, 9,783 Topics, Private Archive, Restricted, Last Post:
Amateur-repairs / Amateur Radio Repairs
Emphasis 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!
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4,864 Members, 18,949 Topics, Private Archive, Restricted, Last Post:
DXLab / DXLab
DXing is the art and science of making two-way contacts with distant amateur radio stations.
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4,739 Members, 44,808 Topics, Public Archive, Restricted, Last Post:
N1MMLoggerPlus / N1MM+
N1MM Logger+ (aka N1MM+) is free contesting software that supports virtually all amateur radio contests.
Created:
4,737 Members, 16,718 Topics, Public Archive, Last Post:
RaspberryPi-4-HamRadio / Raspberry-Pi_4_Ham-Radio
This 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.
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4,274 Members, 2,274 Topics, Public Archive, Last Post:
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:
4,152 Members, 18,148 Topics, Public Archive, Last Post:
UI-View / UI-View32
If you must post an off-topic message on other amateur radio related matters, please mark the posting OT and request direct replies.
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4,000 Members, 18,401 Topics, Public Archive, Last Post:
APRSISCE / APRSISCE for Windows Mobile and Win32
APRSISCE/32 is intended for licensed amateur radio operators only and that privilege comes with the responsibility of identification by CALLSIGN.
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3,701 Members, 7,557 Topics, Public Archive, Restricted, Last Post:
UDXF / Utility DXers Forum
Actually 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:
3,636 Members, 57,382 Topics, Private Archive, Restricted, Last Post:
Yaesu-FT-60 / YAESU FT-60
In 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.
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3,573 Members, 3,536 Topics, Public Archive, Last Post:
irlp / IRLP Discussion Group
This 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.
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3,242 Members, 17,215 Topics, Public Archive, Last Post:
ManualExchange / Manual Exchange
Group devoted to free exchange of service/user manuals for Instruments and RTX (Amateur/professional).
Created:
3,064 Members, 7,052 Topics, Public Archive, Restricted, Last Post:
linuxham / linuxham
To be approved for membership your email address must indicate your amateur radio call sign.
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2,956 Members, 9,880 Topics, Public Archive, Restricted, Last Post:
XieguG90 / Xiegu G90 Transceiver
This is a group to share information and promote understanding of the Amateur Radio transceiver Xiegu G90 and how to use it.
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2,887 Members, 2,125 Topics, Private Archive, Restricted, Last Post:
TS-590 / Kenwood TS-590 Discussion Group
This group with about 2500 members provides a forum for discussions about the Kenwood TS-590S and TS-590SG Amateur Radio Transceiver.
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2,491 Members, 6,423 Topics, Public Archive, Restricted, Last Post:
gqrp / GQRP Club
GQRP Club (Low Powered Amateur Radio)
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2,349 Members, 25,685 Topics, Private Archive, Last Post:
radioartisan / Radio Artisan
We support experimenters of all levels and exchange ideas about amateur radio hardware homebrewing and software development, especially involving Arduinos, Raspberry Pis, computers,
Created:
2,105 Members, 3,242 Topics, Public Archive, Last Post:
MMTTY-SB-RTTY / MMTTY Amateur Radio RTTY Software
Since there are numerous sites dedicated to selling radio gear, we will not allow posting equipment for sale. Doing so will get you banned.
Created:
2,066 Members, 139 Topics, Public Archive, Last Post:
glaarg-vec / GLAARG VEC
The Greater Los Angeles Amateur Radio Group VEC is one of the 14 FCC-recognized Volunteer-Exam Coordinators conducting amateur radio exams.
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1,916 Members, 7 Topics, Private Archive, Restricted, Last Post:
hfpack / HFpack
INFORMATION - HF PORTABLE - MOBILE - EMERGENCY COMMUNICATIONS - HF Pack - AMATEUR RADIO - TRAVEL - PORTABLE - BASE - BACKPACK - QRP - QRO - BIKE - AIR - MARINE - EQUIPMENT - ANTENNAS
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1,860 Members, 679 Topics, Public Archive, Last Post:
DRAKE-RADIO
For the sharing of information and help in repairing the Drake Radio Line of Amateur Radios. Please note.
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1,687 Members, 12,526 Topics, Public Archive, Last Post:
GenesisRadio / Genesis Radio
Please limit your messages and responses to topics related to amateur radio and Genesis radios, SDR and associated topics.
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1,622 Members, 7,515 Topics, Public Archive, Restricted, Last Post:
larrys-list / Larry's List FYI
Larry'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.
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1,598 Members, 2,066 Topics, Private Archive, Restricted, Last Post:
RailScan / RailScan.net
If you are an Amateur Radio operator you can also enter your info in the "RailHam Directory".
Created:
1,557 Members, 10,186 Topics, Private Archive, Restricted, Last Post:
ardop
The groups.io home of the Amateur Radio Digital Open Protocol.
Created:
1,527 Members, 4 Topics, Public Archive, Restricted, Last Post:
RSGBTechnical / RSGBTech
Welcome 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.
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1,494 Members, 8,122 Topics, Private Archive, Restricted, Last Post:
Winmor / WinLink - WINMOR Protocol, VARA FM/HF, ARDOP, PACTOR and Related Topics for WinLINK Express
** The Original Support Group Since 2009 ** Please state your valid amateur radio call sign when requesting membership.
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1,488 Members, 229 Topics, Public Archive, Last Post:
hfprojects
Radio Amateur Kits for High Frequency including the HF Packer Amplifier and miniHFPA and miniHFPA2. We offer construction kits or fully assembled and tested projects.
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1,413 Members, 2,077 Topics, Public Archive, Last Post:
FlexRadioSmartSDR / FlexRadioSmartSDR
TAGS: Ham radio Amateur radio Flex radio SDR radio UPDATE: The Flex Power Genius Amp and Tuner Genius are also appropriate topics for discussion here.
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1,409 Members, 2,017 Topics, Public Archive, Restricted, Last Post:
direwolf / Dire Wolf Software TNC
In 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.
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1,409 Members, 1,150 Topics, Public Archive, Last Post:
Ham-Antennas / Ham-Antennas
Discussion of amateur radio antenna systems, feedlines, matching networks, and related topics. Anything and everything, tell us or ask questions.
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1,394 Members, 682 Topics, Public Archive, Last Post:
hflink / HFLINK
Global ALE High Frequency Network HFN - Amateur Radio - Ham Radio - Emergency Disaster Relief Communications - HF Interoperability - ALE Information - Software - Selcall - Digital HF
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1,356 Members, 563 Topics, Public Archive, Last Post:
steppir / SteppIR Antennas
This is THE place to ask questions and get information from owners and users of these unique, tunable Amateur Radio antennas.
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1,332 Members, 1,986 Topics, Private Archive, Restricted, Last Post:
VARA-MODEM / VARA MODEM (HF and FM
This Group is owned and moderated by Jerry, N9LYA Please state your valid amateur radio call sign in the comments section when joining this Group.
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1,319 Members, 588 Topics, Public Archive, Restricted, Last Post:
Elecraft-K4 / Elecraft K4 Direct Sampling Transceiver and then some!
PLEASE SUPPLY YOUR NAME FOLLOWED BY YOUR AMATEUR RADIO CALL WHEN APPLYING FOR MEMBERSHIP. {There is no specific place to enter your call. Just add it after your name.} RULES: 1.
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1,301 Members, 1,909 Topics, Private Archive, Restricted, Last Post:
Heathkit-Radios / Heathkit-Radios
PLEASE LET US KNOW IF YOU ARE AN AMATEUR RADIO OPERATOR BY INCLUDING YOUR CALL SIGN SOMEWHERE IN YOUR PROFILE, DISPLAY NAME, ETC. . .
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1,238 Members, 5,104 Topics, Public Archive, Restricted, Last Post:
ocfd / Off-Center Fed Dipole antenna group
Make sure that your DISPLAY NAME for this group contains your AMATEUR RADIO CALL SIGN! Otherwise, membership will be DECLINED!
Created:
1,229 Members, 1,343 Topics, Private Archive, Restricted, Last Post:
HeathKit-HFAmps / Heathkit-HFAmps
A valid amateur radio license must be given to join the group.
Created:
1,225 Members, 3,448 Topics, Public Archive, Restricted, Last Post:
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 mandated
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1,221 Members, 421 Topics, Public Archive, Last Post:
MDSRadio / Modulation - Demodulation - Software Radio and the "RF-Seismograph" - measuring Space Weather and Earthquakes with your HF station!
All the information in this group is free to use as long as it is used for non-profit amateur radio purposes only.
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1,161 Members, 2,077 Topics, Public Archive, Restricted, Last Post:
MidlandLMR / MidlandLMR
The primary focus of the MidlandLMR list is to provide a forum for discussion of the use of Midland land mobile radios in the Amateur Radio Service.
Created:
1,123 Members, 4,551 Topics, Public Archive, Restricted, Last Post:
nasota / North America Summits On The Air
Please keep conversations related to outdoor amateur radio activity and please post in English.
Created:
1,066 Members, 8,363 Topics, Private Archive, Restricted, Last Post:
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:
1,029 Members, 1,016 Topics, Public Archive, Restricted, Last Post:
Ham-Pi / HamPi
Net for amateur radio
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1,000 Members, 418 Topics, Public Archive, Restricted, Last Post:
rs-ba1 / ICOM RS-BA1 REMOTE SOFTWARE SUITE
A Moderated Group for those with an interest in the ICOM RS-BA1 Advanced Remote Control software, licensed Amateur Radio operating and related subjects.
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986 Members, 624 Topics, Private Archive, Restricted, Last Post:
Work-Sat / Work the Amateur Satellites - With Minimal Equipment!
Support forum for K6LCS' Work-Sat amateur radio satellites site!
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981 Members, 2,501 Topics, Public Archive, Last Post:
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