W6SFM

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W6SFM The Samuel F Morse Amateur Radio Club promotes the growth and enjoyment of Morse Code in Ham Radio.

10/27/2026
https://www.tronico.fi/OH6NT/keys.htm
10/22/2026

https://www.tronico.fi/OH6NT/keys.htm

Telegraph key and telecom gear collection of OH6NT. Any comments or information about the equipment are welcome! Equipment numbers roughly indicate the aquisition order. Click on the pictures to get a bigger view. Enjoy! Vy 73 de Thomas, OH6NT. You can offer any spare key to me. It will get a good h...

October 24, 10 am - 1 pm 80m Antenna ClinicOpen to W6SFM Club members, family members and/or our friends. Use the "Cont...
10/20/2026

October 24, 10 am - 1 pm 80m Antenna Clinic
Open to W6SFM Club members, family members and/or our friends.
Use the "Contact Us" Form on https://w6sfm.org to RSVP for this activity.

Come and learn with the Samuel F. Morse Amateur Radio Club as Phil Sittner, KD6RM, builds a space-saving/stealth fence-mounted end-fed 80 meter antenna. This may be your solution to operate on 3.5 MHz from a restricted HOA or limited-space environment.

Phil KD6RM will provide the RG-6/U matching coax and connectors and Bob K6ZLY will provide 150 feet of antenna wire (suggest #14 THHN.) Everyone will be involved---all attendees will participate in the antenna build, installation and tuning. After attending this clinic, all attendees will have the skills and resources to build and install their own PS3545 80 meter antenna. Attendees need to bring a calculator, pen, chair and devote a couple of hours to the clinic.

The Samuel F Morse Amateur Radio Club (SFMARC) was originally formed in Sacramento, CA by a group of radio amateurs that mainly enjoy operating CW. We wanted a way to bring others together who also have an interest in operating CW on-air, and share the love of Field Day, Bug Roundup, and both the NA...

International High Speed Telegraphy Championship!
10/15/2026

International High Speed Telegraphy Championship!

Save the Date - October 24, 80 Meter Antenna ClinicCome and learn with the Samuel F. Morse Amateur Radio Club as Phil Si...
10/13/2026

Save the Date - October 24, 80 Meter Antenna Clinic

Come and learn with the Samuel F. Morse Amateur Radio Club as Phil Sittner, KD6RM, builds a space-saving/stealth fence-mounted end-fed 80 meter antenna. This can be your solution to operate on 3.5 MHz from a restricted HOA or limited-space environment.

More detailed information including time and location will follow.

**Navy Re-Institutes CW Training**After discontinuing mandatory Morse training around 2002, the US Navy determined that ...
10/08/2026

**Navy Re-Institutes CW Training**

After discontinuing mandatory Morse training around 2002, the US Navy determined that a generation of communications specialists lacked backup skills for environments in which primary systems fail. CW is not a requirement for all sailors, but the specialists responsible for maintaining communication links under adverse conditions now need to learn Morse as a backup. Official reasoning centered on three factors: satellite vulnerability to anti-satellite weapons and jamming, GPS denial in contested theaters, and the need for low-probability-of-intercept communication methods that require minimal infrastructure. Morse code over HF radio addresses all three simultaneously. Modern warfare targets communication infrastructure aggressively. Electronic warfare units jam voice radio, disrupt satellite uplinks, spoof GPS signals, and disable cellular networks.

How does this affect the amateur radio operator? We know that communication is a necessity of life. Yet there are those who would, and have, shut down communications networks. Morse code in the hands of the radio amateur operator has the following advantages:

Narrow bandwidth: CW occupies roughly 150 Hz versus 2.4 kHz for voice SSB — harder to target and easier to copy through noise

Low-power effectiveness: A five-watt Morse signal can span oceans; voice at the same power often fails

Human in the loop: No dependency on digital protocols, encryption key management, or network routing

Equipment simplicity: A basic transceiver, wire antenna, and battery suffice — no satellite terminal required

Jam resistance: Skilled operators copy through interference that destroys voice intelligibility

If the Navy has come to this conclusion about the use of CW, how about the amateur radio community? Food for thought! For the full interesting story on the Navy’s use of CW go to
https://morsecoder.us/blog/morse-code-navy-2026/

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Rancho Cordova, CA
95670

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