Drawings Used in Ask Dave 7

Oggie Mike, K9MK/5, has asked for the charts used in Ask Dave 7, an introduction to antennas for difficult situations.

The charts can be downloaded in ZIP format by clicking here. The charts are images in PNG format.

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Announcement: Tech Videos (4th Edition) Now Available on Thumb Drive

The Technician training videos on YouTube are now updated for the 4th edition of the ARRL Ham Radio License Manual. In addition, by popular demand, I make them available on a USB Thumb Drive for US$29.99, postpaid anywhere in the United States. See here for details.

This is good news for those who can’t always get online to study, such as those with poor Internet connectivity, commuting on trains or busses, etc. This thumb drive with all the videos would also make a great gift for those of your friends or family who would make great hams once they get their license!

You are welcome to use the videos during club meetings or for training classes. See the details on the purchase page.

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OG! Logo

OG! official logo, copyright © 2015 Dave Casler

Colors (RGB): Blue filler, 219, 219, 255. Red letters: 204, 0, 0. Black: 0, 0, 0.

Posted in Ham Radio blog entries | 2 Comments

Updated Log Stamp with Date Added

Here’s an update from Don Degidio with space for the date added:

Updated from Don with sharpened lettering

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Log Stamp Images

In Ask Dave 18, I showed a rubber stamp that I use to create an entry in an ordinary notebook for logging. Gwen Patton, N3GP, has recreated the image of the log stamp for anyone who’d like to recreate the stamp for their own use. Here is the image:

Clear image of my logging stamp for use with any notebook. Thanks Gwen Patton, NG3P.

Here’s the rubber stamp I had made at a local stationery store, sitting on an American 3″ x 5″ card for size comparison.

Posted in Ham Radio blog entries | Tagged , , | 4 Comments

AD14 Typical CW QSO Charts

Here are the charts I used in Ask Dave 14, “Anatomy of a CW QSO,” by request. These PDF charts walk you through a typical exchange for a brief conversation in Morse Code.

Click on this: A typical CW exchange.

I hope the charts help you be more comfortable on CW!

Posted in Ask Dave | 2 Comments

Assembling the MFJ-1846 Six-Band Hex-Beam Antenna (#152)

Watch the time lapse photography as I assemble the MFJ-1846 six-band hex-beam antenna. I also explain how hex beams work.

You can see a list of Ask Dave videos by clicking here. You can ask a question by clicking here. You can go to my YouTube channel by clicking here. And the tip jar is available by clicking here.

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Conversation with Ray Nelson, N1MPD, Regarding Coax Connectors (#149)

Ray Nelson is one of the principles at MPD Digital (usacoax.com). I spoke with him at length about connectors for coaxial cable. Enjoy our 30-minute chat!

You can see a list of Ask Dave videos by clicking here. You can ask a question by clicking here. You can go to my YouTube channel by clicking here. And the tip jar is available by clicking here.

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Modeling the Simple Inverted Vee Antenna #102

What can we learn about the Inverted Vee HF single-band antenna from the EZNEC+ model? Lots of things, having to do with height above ground, the amount of spreading, and using a metal pole as a mast. Tune in for full details!

You can see a list of Ask Dave videos by clicking here. You can ask a question by clicking here. You can go to my YouTube channel by clicking here. And the tip jar is available by clicking here.

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Modeling Common Dipole Variations (#101)

Viewers queried me about what happens when you shorten a dipole by letting the ends hang down, or have to put up a dipole that can’t be in a straight line, and I was also curious about the effect of my aluminum masts on horizontal dipole performance. EZNEC+ to the rescue. The video shows that modified dipoles can work quite well.

You can see a list of Ask Dave videos by clicking here. You can ask a question by clicking here. You can go to my YouTube channel by clicking here. And the tip jar is available by clicking here.

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