Portable ops
We Radio Amateurs in general, and QRPers in particular, take so much for granted when we want to enjoy both our hobby and the great outdoors together. It really takes no effort at all to pop a small, lightweight radio into a backpack along with a lithium battery and a hunk of wire, and find yourself on the air – literally in minutes. What’s your pleasure? An Elecraft KX1, K1, KX3? A Sierra? A Yaesu FT817 or an Icom IC-703? A Steve Weber ATS or MTR? A Hendricks PFR3A? One of the HB radios from either YouKits or one the Ten Tec models? One of Dave Benson’s Small Wonder Labs models? There are many other models from other manufacturers that will fill the bill just as well, too.
But it wasn’t always this way. Before the days of transistors, ICs and other semi-conductors, radio equipment was (for the most part) big, bulky and destined to a life in an indoors environment. When radio equipment was needed for outdoor use by the military, conventional equipment was often modified for use outside, on the battlefield. Here’s the story of how Hallicrafters served our country during WWII:
Obviously, I’m comparing apples to oranges. First off, today’s military doesn’t rely on HF as in years past. A majority of military communications take place in the UHF and higher frequency parts of the radio spectrum. Also today’s military makes extensive use of satellite communications. But for the moment, let’s forget that. If HF was the still predominate playing field today, like it was during WWII, think what a small radio like a Yaesu FT857D (capable of 100W output), a small generator, or a deep cycle marine battery and an antenna like a Buddipole could do. This would be a lot more convenient (and portable) than the equipment shown in the YouTube video.
My point? We’ve come a long way, baby!
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].
Hints of Sporadic E and a QSO with a Ham Radio Hero!
Over the last few days there’s been a sense that a few Es openings have taken place. Last Saturday, some people caught an opening on 50MHz, but there was nothing here. It’s always nice to get the first 50MHz Es opening of the year in the log – a feeling that Summer is on the way!
This evening when I got back to the car at Didcot, I popped the 28MHz rig on and had a scan around. The EA4Q beacon from Madrid was coming through nicely and down on 27MHz, there were Spanish CBers coming in.
Changing the subject, last night I was on 14MHz JT9, using the WSJT-X program (which has become a firm favourite here). I was really delighted to work the Father of WSJT, WSPR and WSJT-X, Joe Taylor K1JT. Joe’s software is in virtually constant use here, so it was a pleasure and an honour to work him for the first time in a two way contact. Joe’s definitely one of my Ham Radio Heroes!
Tim Kirby, G4VXE, is a regular contributor to AmateurRadio.com and writes from Oxfordshire, England. Contact him at [email protected].
Classic Straight Key CW
http://www.youtube.com/watch?v=nVkLr0GyJPI
Test Questions;
What is a glass arm?
How long should you be able to send using proper form?
How far apart should the contacts be?
What are the working parts of the body when sending CW?
Mike Crownover, AD5A, is a regular contributor to AmateurRadio.com and writes from Texas, USA. Contact him at [email protected].
Checking Out A Baofeng UV-5RA
In the Winter 2013 issue of CQ VHF magazine, I wrote about some of the VHF/UHF handheld radios available from China. In that article, I reported on the measured performance of a few of the Wouxun and Baofeng transceivers. One of the Baofeng UV-5R radios that I tested showed harmonic distortion that was a bit high on the 2 Meter band, around -40 dBc.
I recently got my hands on a Baofeng UV-5RA, which is a newer version of the same radio (firmware BFB297), so I wanted to check its performance. Like the two UV-5R models I checked, the power output, transmit frequency and receiver sensitivity were all quite solid on both bands. I was more interested in the harmonic distortion present in the transmit signal.
On the 2 Meter band, the 2nd harmonic measured -48.4 dB relative to the fundamental which is pretty good. Similar to the other radios I measured, the performance in the 70 cm band is a lot better (-56.1 dB).
This radio has significantly better harmonic distortion than the older UV-5R radio. Of course, this is just a single sample, so performance of other radios may be different.
73, Bob K0NR
Bob Witte, KØNR, is a regular contributor to AmateurRadio.com and writes from Colorado, USA. Contact him at [email protected].
NJQRP Skeeter Hunt for 2013
Official announcement to come out in a few weeks. The date is confirmed, though – Sunday August 11th, so save the date!
New for 2013:
New theme for this year with bonus points.
SSB will be a category this year for folks who prefer that mode.
Extra points to be awarded for any WAE (Worked All Europe) contacts made, as it runs the same day and a few Skeeters and Hunters actually made DX contacts last year.
Stay tuned – more to come!
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].
Handiham World for 17 April 2013
Pat Tice, WA0TDA, is the manager of HANDI-HAM and a regular contributor to AmateurRadio.com. Contact him at [email protected].
Simply Amazing
This is my 35th year as an Amateur Radio operator, and my 10th year as a dedicated QRPer. I think the best thing about this hobby is that it just doesn’t get old. Maybe I’m the exception, rather than the rule, but my latest QSOs give me as much enjoyment and fill me with as much wonder as that very first one.
Tonight, I worked EW8DJ, Alex in Belarus on 30 Meters. Listening on 20 Meters for a bit, I heard RW6FS and LZ1QI and I hesitated to work them, as we QSOed so very recently. Sometimes I feel like they’d hear W2LJ and think, “Didn’t I just work that guy?”
But thinking about the QSO that I did have makes me pause.
New Jersey to Belarus with just 5 Watts from my radio, out my Butternut antenna, travelling a quarter way around the world to another Ham.
Think of the distances! If I got in a commercial airliner, and left right now, in about 9 or 10 hours (or more), I would arrive where my radio signal traveled practically instantaneously.
Many take this technology so much for granted, but I still find it amazing. Can you imagine what the early radio pioneers would think? Imagine Marconi, who strung miles of wire, high in the sky, just to strain to hear a whisper of a signal from Europe. Can you imagine him sitting down behind a KX3? What do you think his reaction would be at working a station in “White Russia” using a piece of aluminum 26 feet tall, using less power than an average nightlight?
I’m pretty sure that he’d be smiling from ear to ear.
The world may look at us, watch us play with our radios, and think we’re quaint, doddering old fools for bothering with antiquated technology that’s over 100 years old. I sit down and consider what’s actually happening, the distances covered considering the power used, and I am still able to appreciate the miracle that radio continues to be.
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].
















