Thursday, October 21, 2010

KI6SN T-FR Single-Lever CW Paddle

November 2010's Trail-Friendly Radio, in Worldradio Online magazine by Richard Fisher, KI6SN, features a modified version of NB6M's renowned single-lever CW paddle you can build. It's fortified for rugged field operation. Click here to see the full article. Additional photographs and dimensions for the paddle's dual-sided PC board parts are shown below.

For an enlarged view, click on the images

Friday, May 21, 2010

'Where Am I Going to Operate?' - Frequencies

For an enlarged view, click on the image.

Darrell Swenson, KØAWB, of Omaha, Nebraska, put together this handy chart of HF and VHF frequencies regularly monitored by various amateur communities and organizations. It can be printed out and used as a handy "cheat sheet" for determining on what frequencies to operate when on trail-friendly radio expeditions.

Additions and corrections to the chart are welcome. Please write Trail-Friendly Radio columnist Richard Fisher, KI6SN, at

Monday, April 12, 2010

KI6SN LM380 Audio Amplifier For the Field

KI6SN's Trail-Friendly Radio column in the May 2010 edition of WorldRadio Online magazine features an easy-to-build audio amplifier that's great for adding headphone punch in the field. Utilizing a 14-pin LM380 / NTE740A chip, the circuit requires only a small handful of parts.

Here are some photos of the KI6SN version of the amplifier:

For an enlarged view, click on the images.

Links to parts sources for the amplifier include: 

Dan's Small Parts and Kits

Digi-Key Corp.

Mouser  Electronics

Friday, March 19, 2010

Feedback On the KI6SN OM Antenna Mast

 This photo shows the bottom portion of N2EIK's PVC mast arrangement.

Here's the mid-portion of the mast at N2EIK.

 A look at the top portion of the mast at N2EIK.

Click here for a look at Euler’s Laws.

Click here to see more photographs of KCØBMF’s PVC antenna mast. Look on the left side, click on Field Day and then look at 2009.

Click here to view the January 2010 Trail-Friendly Radio column featuring the KI6SN OM Mast.

Tuesday, January 19, 2010

Diana Eng, KC2UHB: From the 'Runway' to the trail

Diana Eng, KC2UHB, a star of the hit Bravo reality series Project Runway, has the lead role in her own You Tube video: How To: Set Up An HF portable radio while hiking. The world-renowned fashion designer and author of Fashion Geek: Clothes Accessories Tech, enjoys trail-friendly radio as a way to get out of the concrete canyons of New York City and onto the hiking trails of New Jersey, Connecticut and beyond.

Featured in KI6SN's Trail-Friendly Radio column in the February 2010 edition of WorldRadio Online, 'UHB often goes on T-FR excursions with David Clausen, W2VV; and Tom Tumino, N2YTF. Here's a gallery of photographs from some of their outdoor adventures - which include sojourns to New Jersey, Connecticut, Turks and Caicos Islands and satellite operation from NYC.

ABOVE: KC2UHB in New York City, above, holds a hand-held antenna in preparation for making VHF/UHF contacts via a passing satellite.
BELOW: An engraved plate marks the summit of Mt. Carmel in Connecticut.

ABOVE: KC2UHB relaxes during a recent T-FR outing.
BELOW: KC2UHB and N2YTF ready their radio gear before hitting the trail.

ABOVE: At an indoor operating post, KC2UHB listen while she tunes.
BELOW: Operating VP5 from Turks and Caicos Islands in the Caribbean, 'UHB makes HF contacts near the beach.

BELOW: Diana Eng, KC2UHB, and Dave Clausen, W2VV, pose for a picture during a T-FR outing.


(Photography courtesy of Dave Clausen, W2VV)