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...



K6KPH On The Air For International Marconi Day

K6KPH, the amateur station of the MRHS, will be active for International Marconi Day (IMD) 2018 to help celebrate the birthday of the Great Man.

IMD is organized by the Cornish Amateur Radio Club each year on the weekend closest to Marconi's birthday of 25 April 1874.  This year the event will be held on 21 April UTC.   

Since K6KPH transmits from the original Marconi site that went into service in 1914 it is a registered IMD station.  The Cornish Amateur Radio Club will issue an award to stations that contact 15 officially registered IMD stations like K6KPH.

> Date & Time - K6KPH will be in operation Saturday 21 April beginning at 0000 UTC (5:00 pm Friday 20 April PDT).  Operations will continue for several hours until our operators run out of steam.  See below if you would like to be a K6KPH operator for this event!

> Frequencies - K6KPH will guard these frequencies:


> Calling Procedure - Since we will have KPH on the air as well (see below), the operators will be very busy and may not be able to call CQ on each amateur channel.  But they will be scanning all the channels.  So the best bet is to use commercial procedure when calling K6KPH:

Continue to call on your chosen frequency until the K6KPH operator responds with DE.  Then respond with your call sign.

The station can be reached by phone on +1 415-669-9646 if you want to call in a report or arrange a special listening watch.  The phone will be answered only when the station is on the air.

> Be a K6KPH Operator - If you would like to be a K6KPH operator for IMD we would welcome your help.  Bring your key and 'phones or use ours (but be advised that some modern electronic keys may not work with the K6KPH keying system so bugs and straight keys are encouraged).  Show up early so we can familiarize you with the K6KPH equipment and procedures.  You'll be using fixed frequency 1.5kW commercial transmitters 20 miles from the receive/control site so operations are a little different from usual amateur practice!  For more information please send an email to

> KPH Will Be On The Air - KPH will be transmitting on these frequencies and will of course be listening for calls from ships on 500kc and ITU channel 3 HF.


VY 73,


MRHS Newslettters

To subscribe to the MRHS Newsletter click HERE

For back issues of the MRHS Newsletter click HERE


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,


Stay Up To Date!

Subscribe to the MRHS Newsletter for all the latest information.