Support the MRHS

We need your help.  It's as simple as that.

Our small group is now responsible for a facility that once required dozens to maintain.

We have funded everything from the costs for rewinding transformers to purchasing power tubes for the transmitters from our own pockets - and we feel privileged to do so.

But the larger projects we now face, such as antenna restoration, are beyond our personal means.

Won't you help?  Your donation is tax deductable and we promise to get the most out of every dollar we receive.

Most important, you'll know you have helped keep the traditions of maritime radio alive.

Just click on the button below or send a check to:

Maritime Radio Historical Society

PO Box 392

Point Reyes Station, Ca 94956


Thanks and VY 73...



Stations, Frequencies and Hours of Operation

Update 9 September 2019: K6KPH frequency 18097.5 has been returned to service.  21050 has been removed from service.

Here's the list of stations operated by the MRHS and their frequencies.  Please note the frequencies that are not currently in service.  They're included for your future reference.  Check back here or, even better, SUBSCRIBE to the MRHS newsletter for updates.

KPH: 426, 500, 4247.0*, 6477.5, 8642.0, 12808.5, 17016.8, 22477.5


K6KPH: 3550.0, 7050.0, 14050.0, 18097.5, 21050*

* Out of service

All times are Pacific (San Francisco) time.

KPH, KFS and K6KPH are operational on Saturdays only.  KPH and KFS begin PX and WX broadcasts at 1000 with live operators on duty starting at 1200.  K6KPH begins operation at 1200.  All stations continue operations until about 1700.

KPH Software Defined Receivers

Now you can listen to the LF, MF and HF bands using the same antennas the operators at KPH use - from the comfort of your computer no matter where you are in the world.

We have installed several Kiwi Software Defined Receivers (SDRs) covering all frequencies from 0 to 30Mc - and made them publicly available via the Internet.

The LF/MF receiver uses a Marconi T antenna while the HF receiver used a TCI-530.  Both are located at the KPH receive site where electrical noise is extremely low.

We are still fine tuning the installation but the project has reached the point that it's ready for you to use.  Here are the links.

For LF/MF click HERE

For HF click HERE

We'd appreciate your comments.  Please write to


MRHS Newslettters

To subscribe to the MRHS Newsletter click HERE

For back issues of the MRHS Newsletter click HERE


MRHS On-Line Store!

Get your MRHS mugs, hats, t-shirts and all sorts of other high class swag at our on-line store.  Be the envy of your friends and support the MRHS at the same tine.  Click HERE to get started.


MRHS Offers Radiotelegraph Exams!

The Maritime Radio Historical Society is now authorized to administer the examination for the commercial radiotelegraph license.  Yes, the FCC still issues this ticket! Visit the MRHS Events page for more information.

Visit Us

The KPH receive site is open for visitors every Saturday 1200 to 1700 local time.  Visitors are welcome!  The receive site is located at 17400 Sir Francis Drake Blvd in the Point Reyes National Seashore, just past G Ranch on the way to the lighthouse.  Whisper "True Believer" when you visit for access to our Treasure Room!

Who We Are

Let's be honest... We're a bunch of radio squirrels.  And very lucky radio squirrels at that.  We inhereted the last remaining Morse code coast station in North America.  It was off the air but it was an intact time capsule.

We made the restoration of KPH to operational status our life's work.  That was back in 1999 - the year the last commercial Morse code message in the U.S. was supposedly sent.

Through the trust and vision of the Point Reyes National Seashore we were given permission to begin our project of restoration, documentation and operation.  And we've never looked back.

As True Believers in the importance of our maritime radio heritage we have tried to research and document every aspect of the field.  Our area of specialization is the coast stations, ships and companies of the west coast of the United States. But anything to do with maritime radio anywhere in the world is of interest to us.

Dedicated MRHS volunteers are busy with the preservation, restoration and repair of the historic artifacts with which we have been entrusted.  That work is the foundation on which the real goal of our project rests.  That goal is to assure that the culture, techniques and traditions of the men and women who came before us are not forgotten.  We feel that the best way to achieve that goal is through actual on the air operations.

We look forward to visits by fellow True Believers in the importance of the preservation of our radio heritage.  Please see the Contact Us section for full detail about visiting us.  Or subscribe to our Newsletter using the form above for up to date information.

We invite you to peruse these pages for details of our work and of radio history.  And we wish you fair winds and following seas.

VY 73,


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