AmateurRadio.com

If you’re an avid CW buff like me, you have accumulated a collection of paddles, bugs, hand keys and keyers. You like to switch off keys and keyers when operating CW. However, it’s such a pain to pull gear off the shelf to plug-unplug keys and keylines.

Here’s a neat solution that only requires hooking everything up once. Using a stereo source selector box (about $30) you connect up four paddles, bugs, hand keys, and keyers to one or two rigs. You can connect one key at a time or all four at once. You can even patch one or all four keys to both rigs simultaneously.

You can appreciate the convenience this offers. Select one of four paddles, keys, or keyers and start sending CW. You can change from one to another just by moving your hand.

Here’s how it’s done. Phono Preamps offers the TCC TC-716 6-Way Stereo Source Selector:

The selector has a row of six push buttons on the front. On the rear are two mini 3.5mm (1/8″) stereo phone jacks and four pair of RCA phono jacks. Any combination of rigs and keys/keyers can be plugged in. I used simple 6-inch “Y” cables with 2x RCA male plugs to 1x 3.5mm stereo female jack for “Audio 3 through 6”. The selector box and y-cables are available here:

http://www.amazon.com/gp/product/B0001F347K/

http://www.amazon.com/gp/product/B000I23TTE/

Locate the selector box centrally on your desk as you’ll use it often.

73 de Jim KM5M

Jim Sheffield, KM5M, is a special contributor to AmateurRadio.com and writes from Texas, USA.

Nick KE0ATH working 2 meters

Now that my son Nick (KE0ATH) has his ticket, he is putting together a 2 meter “Go Box”.  First on the agenda was a nice J-Pole antenna.

He did some searching and found a J-Pole design that collapses down to about 20″ long.  The 1/2″ copper pipe segments are held together with a bungee cord run internally.

Nick found a couple different designs and combined them to meet his needs.  He plans to use this while camping, etc.

When you watch the video, check out his smile at about the 4:00 minute mark when he makes the first contact on his new antenna – priceless!

We had a blast building this together, and Nick learned several new skills – so it was a great success!

If you have any questions, be sure and give me a shout.  You can also see my other videos on YouTube here:  N0HYD YouTube Channel

73 – Burke

Burke Jones, NØHYD, is a regular contributor to AmateurRadio.com and writes from Kansas, USA. Contact him at [email protected].

Nick KE0ATH working 2 meters

Now that my son Nick (KE0ATH) has his ticket, he is putting together a 2 meter “Go Box”.  First on the agenda was a nice J-Pole antenna.

He did some searching and found a J-Pole design that collapses down to about 20″ long.  The 1/2″ copper pipe segments are held together with a bungee cord run internally.

Nick found a couple different designs and combined them to meet his needs.  He plans to use this while camping, etc.

When you watch the video, check out his smile at about the 4:00 minute mark when he makes the first contact on his new antenna – priceless!

We had a blast building this together, and Nick learned several new skills – so it was a great success!

If you have any questions, be sure and give me a shout.  You can also see my other videos on YouTube here:  N0HYD YouTube Channel

73 – Burke

Burke Jones, NØHYD, is a regular contributor to AmateurRadio.com and writes from Kansas, USA. Contact him at [email protected].

AmateurLogic.TV Huntsville Bonus Episode is now available for download.

George and Wayne make their yearly pilgrimage to the Huntsville Hamfest. We visited with some old friends to find out what they’ve been up to and got some great stories you’ll enjoy.

1:11:47 Southern Amateur Fun

Download
YouTube

George Thomas, W5JDX, is co-host of AmateurLogic.TV, an original amateur radio video program hosted by George Thomas (W5JDX), Tommy Martin (N5ZNO), Peter Berrett (VK3PB), and Emile Diodene (KE5QKR). Contact him at [email protected].

When I left the house this morning for work, it was all of 52F (11C), which is very cool for New Jersey this time of year.  Also, I noticed on the drive in that many of the trees already have leaves that are turning yellow and orange, and many trees have started dropping their leaves. Again, that is something we are accustomed to seeing at the end of September, not August.

But the day heated up, and by lunchtime it was 84F (29C). Quite a warm up!  And fortunately, it wasn't only the air temperature that had gotten hot. 17 and 15 Meters were hopping and hot - well, maybe not as hot as a few months ago, but hotter than just a few weeks ago. The sunspot number had risen to 128 making conditions better than they have been in days. I'll take it!

I worked 9Y4/AI5P on Trinidad/Tobago, RI4CWC/3 in Russia and PI4DX in the Netherlands, all on 17 Meters.  The thought then occurred to me that if 17 Meters was working so well, then 15 Meters might be worth looking at.  It was, and after switching over, I worked OQ4U in Belgium and SP2GUB in Poland.  All the stations on both bands had excellent signal strengths and I got decent reports back, the lowest being 559.

I don't know how long these good band conditions will be able to maintain themselves. The way the Sun is throwing fits and starts, it may not be for that long.  But if you get a chance, get on the air and make hay while the opportunity presents itself!

72 de Larry W2LJ
QRP - When you care to send the very least!
Larry Makoski, W2LJ, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at [email protected].

Ever alert Steve G1KQH has spotted that Yaesu launched the new FT991 at the Tokyo Ham Fair in Japan as a replacement for the FT897D. See http://qrznow.com/yaesu-ft-991/ .

This looks a very neat, small, multi-band, multi-frequency rig, as long as the price is sensible. In Jaoan, they usually sell a QRP version too. It would be good to see a 20-30W version in Europe too. This would compete well with the (now stopped) IC703 rig by ICOM.

http://qrznow.com/yaesu-ft-991/

The image is linked from the http://qrznow.com/yaesu-ft-991/ site. The image is NOT resident on this site. Please follow the link for details of this rig. I have no further details.

There is no sign of a replacement for the FT817ND rig. I think Yaesu must have abandoned plans, which is a shame.

Roger Lapthorn, G3XBM, is a regular contributor to AmateurRadio.com and writes from Cambridge, England.

After the transmitter and the receiver had been accurately focused (the receiver's photodiode at the fresnel's focal point and the transmitter's secondary lens properly positioned) both enclosures were screwed together and mounted on a tripod.



Markus, VE7CA, had checked-out a suitable location not far from his home QTH on the road to one of the local ski-hills. This gave him an unobstructed view to my location on Mayne Island, about 54km to the southwest. I had planned to set up in my front yard, about 15' above sea level and on the eastern shoreline with a direct shot to Markus.

Even though we were using LEDs rather than lasers, I still felt somewhat uneasy as our path crossed directly over the runways at Vancouver International (around the path midpoint) as well as the main ferry lane between Vancouver Island and the B.C. mainland. Considering the distances involved, I probably need not have worried as the light, although bright, would cause no physical harm other than possible momentary distraction or curiosity. If one of the ferries had been approaching the path, I had planned to shut down until it had passed as it would have been hard to convince authorities that the light really was not a laser, before they carted me away!

After waiting for the usual winter B.C. rain to subside, we finally had a promising evening shaping up, although somewhat cold. Markus, accompanied by Jim, VE7BKX, loaded his vehicle and headed for the mountains. With neither of us having 2m portable radios, we somewhat guiltily reverted to cellphones to announce setting-up status.

VE7CA/7

Shortly before dark, I aligned my light boxes to point at what I was pretty sure was Markus's location and turned on my FSK beacon.... the bearing was taken from Google Maps and alignment aided by my I-Pad's Commander Compass Lite app. The plan was for Markus to sweep until he (hopefully) heard me and then turn on his beacon so that we could then both tweak our final alignments.

Almost immediately I heard his beacon signal although there was no visible sign of his light.

Before final alignment I made a quick recording of his signal.

Neither if us had any real idea of what type of signal strength to expect and we were both very surprised to hear how strong the signals were. Once we had both aligned and our lights were now visible, we switched to CW mode and proceeded to work each other in typical QSO mode.

Hear is a recording of Markus sending my RST report.

Signal reports as well as grid squares were exchanged just to make everything 'official'. We then settled into a nice twenty-minute ragchew until the cold winter air took its toll on our fingers forcing us both to close down and pack up for the night.

Markus grabbed a short cellphone video from his end which shows the still fairly bright twilight skies and the LED signal source:


Earlier, John (VE7BDQ) had made the decision to not build a transmitter as he preferred not to go portable. Both of us were interested in pursuing a possible non-line-of-sight (NLOS) path by using either 'cloudbounce' or 'clear-air scattering' which would allow John to set up in his backyard. The path between us is much shorter than the VE7CA/7 path as can be seen in the map below:

Courtesy: https://maps.google.ca/

To date we have made one test at this mode, trying various takeoff angles at my end, but cloud conditions were not optimal, and as yet, I am not totally certain of what type and height of cloud would be best. Perhaps we should be looking for the typical very light fog that often forms over Georgia Strait for enhanced water molecule scattering? As well, I think our best chances for success would be the slow speed QRSS mode, possibly QRSS3 or QRSS10 which could offer as much as 20db signal gain over normal speed CW.

For one-way beaconing, I plan to add a more accurate crystal-controlled tone module so that my CW signal's frequency is precisely known and can be watched for in the very narrow bandwidth window of Argo or Spectran over a given period of time. Even at these slower speeds, QSOs exchanging the minimum required information can still be made relatively quickly. Hopefully any reception at all of my signal at John's location will excite him into building a transmitter as well. Completing a two-way contact using the NLOS mode would be a very interesting challenge.

In the meantime, Markus and I have been seeking out possible new locations for his remote work, using "HeyWhat'sThat Path Profiler" web site. This site quickly indicates the distance and headings between any two points and draws a geographic contour of the path showing any obstructions.


Courtesy: http://www.heywhatsthat.com/profiler.html

Markus hopes to get out to one such favourable location in the Fraser Valley mountains, before the weather turns nasty once again.

If there is anyone in the Vancouver lower mainland region that might be interested in building a lightwave station to join us in the fun, please do not hesitate to make contact with any of us...we would love to hear from you!


If you are a member of the Radio Amateur's of Canada (RAC) and receive their 'TCA' journal, please watch for our upcoming article in September's issue..."A West Coast Lightwave Project".
Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].