Repeater Information


HARCHARC/Muni145.470-600103.5W6ZZKEurekaOnlineClub Repeater
HARC691/Rainbow146.910-600103.5W6ZZKRainbow Ridgeworks poorlyReplacement planned
FWRAHumboldt Hill146.700-600103.5K6FWREurekaOnlineEureka to Trinidad
FWRAHorse Mountain147.000+600103.5K6FWRWillow CreekOnlineHW299 Eureka to Weaverville
FWRAMount Pierce146.760-600103.5K6FWRScotiaOnlineLoleta/Fortuna/Rio Del/HW101 south
FWRAPratt Mountain146.610-600103.5K6FWRGarbervilleOnlineGarberville & south
RARCFortuna147.090+600103.5KF6SYKFortunaOnlineFortuna club repeater
N/AAE6R442.000+5M100AE6RHorse MountainOnline
N/AIRLP147.445-1M103.5WB6HIIFerndale/Bunker HillOnlineIRLP 7757
DNARCClub146.880-600136.5W6HYCrescent CityOnline
DNARCCamp Six147.180+600136.5W6HYGasquetOnline
SHARCShelter Cove146.940-600103.5KM6TEShelter CoveOnline
TCARCHayfork Bally146.730-60085.4N6TKYWeavervilleOnline

Legend & More Details

HARC repeaters are owned and maintained by the club using member dues. 

FWRA is the Far West Repeater Association, The FWRA maintains 4 linked VHF repeaters in Humboldt County, California. The repeaters are open to all licensed Amateur Radio operators that follow the Code of Conduct. Because the repeaters are linked, a ham in Willow Creek can easily talk to a ham in southern Humboldt – even with low power. As long as you can make a good contact with the repeater nearest you, you can talk to anyone else on the system throughout Humboldt County. Users of these repeaters include members of the Humboldt Amateur Radio Club, the Redwood Amateur Radio Club in Fortuna, and the Southern Humboldt Amateur Radio Club in Garberville.

SHARC is the Southern Humboldt Amateur Radio Club, our sister club in the south. SHARC owns and operates three local FM radio repeaters. The 146.790 MHz transmitter above Garberville is linked to the 146.940 MHz repeater above Shelter Cove, and both have local telephone dialing Autopatch access. The 147.33 MHz Grasshopper repeater near Weott completes club coverage of all Southern Humboldt Co. & Northern Mendocino Co. with public service emergency communications, and communications in time of disasters. SHARC also has a weekly check-in for members on Monday at 7PM.  

DNARC is the Del Norte Amateur Radio Club, who lists 7 repeaters in Del Norte County north of Humboldt. They have their club check-ins Tuesday night at 7:15pm on their repeaters. 

SMRS is the Sonoma Mountain Repeater Society 

TCARC is the Trinity County Amateur Radio Clubwhose website appears to be down at the moment, so check out this cached version of their repeater frequency page.

Other Northern California Repeaters

For more information on Repeaters in Northern California, check out The Northern Amateur Relay Council of California. Then click on “Repeaters” on the left hand menu, and then “North Coast” on the formatted list, which will bring you directly to this page of repeaters

For a master list of all Repeaters, check out the RepeaterBook website, This is the website that CHIRP will automatically download from if you choose ‘Geographic Download” from the menu. It is generally considered to be the most widely used and up to date repeater list in the United States.

If you are looking for government repeater frequencies, please check out the Radio Reference website for Humboldt, Eureka, Arcata, Fortuna, and Fire/Emergency Services, as well as other government organization’s frequencies, such as the Zoo or Public Works. Please do not transmit on these frequencies, it may be illegal for you to do so. 

What is a Repeater?

According to Wikipedia, “A radio repeater is a combination of a radio receiver and a radio transmitter that receives a signal and retransmits it, so that two-way radio signals can cover longer distances. A repeater sited at a high elevation can allow two mobile stations, otherwise out of line-of-sight propagation range of each other, to communicate. Repeaters are found in professional, commercial, and government mobile radio systems and also in amateur radio.”

In practical terms, everyone listens on one frequency that the repeater broadcasts at, and everyone transmits to a frequency slightly off of that. This way, everyone hears the same thing, which is whatever the repeater hears and than re-transmits. 

A group, such as the Far West, can then link all of their repeaters together, so that if anyone transmits on any one of their repeaters, all of the repeaters re-transmit it, making the coverage far wider than a normal light-of-sight UHF/VHF radio could achieve. 

Using Repeaters & Equitique

If you need any help programming these repeaters into your handheld of mobile UHF/VHF radio, we recommend CHIRP, a free multi-platform open source application for programing memories and settings on many radios. CHIRP can even download all the frequencies and offset codes from the RepeaterBook website, greatly simplifying the programming of handhelds. 

There also may exists a basic ‘equitique’ when using our club repeaters. Here are the basics when using repeaters:

  1. Always LISTEN before transmitting. Take 30 seconds or so to see if there is already some traffic on the repeater before keying up. 
  2. Announce your intentions. Say your callsign and ‘monitoring’ so others might know you are available to chat, or if you are looking to strike up a conversation with anyone listening, say something like, “W6ZZK monitoring, anyone free to chat?” replacing our club call with your own callsign. If you wish to talk with a specific person, say something like, “KE6SEL this is KM6MWO, are you around?”
  3. Pause for a moment. Someone might be listening, but not have the mic in their hand. Let them walk around the bench, or make that turn before repeating your request.
  4. If someone breaks into a transmission or steps in between speakers, acknowledge the new call before continuing your conversation. They might have an emergency or need to get a short message out on the repeater.
  5. Remember, you must transmit your call every 10 minutes, but it isn’t required to say it on every key down. It’s also not advised to say “break” as it has several conflicting meanings. 
  6. Finally, remember that the repeaters are for everyone and many people might be listening. If you plan on having an extended conversation about something, agree to go simplex on a nearby frequency. 


If you are looking for other local traffic, 146.52 MHz is the national calling frequency for 2 meters in the US. There is often hams in vehicles or in traffic on that frequency, so if you see a car or truck with a large antenna on it or perhaps a callsign license plate, try calling to them on this frequency and see if they respond!  Also, 432.10 MHz is the calling frequency for 70cm. Calling Frequencies are routinely monitored by any number of radio amateurs and is likely to result in a response when calling CQ, Mayday, or SOS. Become a vital part of the community, just by including the national calling frequencies (search for ‘calling’) in your scan frequencies of your radio. 

A operator with a headset roating the dial of a radio, with a screen ot detailed text in the background

Join our Community

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