AmateurRadio.com

Series Four Episode Fifteen of the ICQ Podcast has been released. News Stories include :-

• RS-ID via linked repeaters results 
• Space trash misses hams
• Amateur Radio Satellites 50th Anniversary 
• New Whipbeater antenna 
• Portugal allocates additional 5 MHz frequency 
• 500 kHz for Malta
• UK spectrum management 
• Rare satellite grid squares activated
• Satellite Beginners Workshop 
• Scottish Scout New Horizons Expedition 
• Olympic tests on 70cm 
• Amateur radio repeater falls silent 
• Amateur bags classic callsign 

Your feedback, North American HamBrief with Chris Matthieu (N7ICE), American licence system by Jon Hawkes (VK2TCW and K2TCW) and Martin (M1MRB) discusses our mini holiday dxepedition.

Series Four Episode Fifteen of the ICQ Podcast has been released. News Stories include :-

• RS-ID via linked repeaters results 
• Space trash misses hams
• Amateur Radio Satellites 50th Anniversary 
• New Whipbeater antenna 
• Portugal allocates additional 5 MHz frequency 
• 500 kHz for Malta
• UK spectrum management 
• Rare satellite grid squares activated
• Satellite Beginners Workshop 
• Scottish Scout New Horizons Expedition 
• Olympic tests on 70cm 
• Amateur radio repeater falls silent 
• Amateur bags classic callsign 

Your feedback, North American HamBrief with Chris Matthieu (N7ICE), American licence system by Jon Hawkes (VK2TCW and K2TCW) and Martin (M1MRB) discusses our mini holiday dxepedition.

One of my plans for this year had been to try other bands when out activating on the fells. I was going to try 4 metres. Many SOTA activators use 4m FM already and the introduction of new hand-held 4m radios from Wouxun seemed likely to cause a surge of interest in the band. Moreover, 70MHz offered the prospect of chance long distance Sporadic-E contacts during the summer months which has always been one of my main interests.

I decided not to get one of the new Wouxun radios, however. Whilst the new 4m/2m dual bander looked tempting, I didn’t need another hand-held with 2m capability and any dual band antenna would be an undesirable compromise. The single band 4m Wouxun was almost the same price as the dual bander, so was not a good deal. Instead, I had a look to see if I could find something like a low band version of the Motorola GP300. I couldn’t, but eBay turned up a professional radio called the H112PLUS made by Cybercom Electronic Corporation Limited in Taiwan, available in VHF low band, high band and UHF versions for just over £50 shipped. A particular attraction was that the radio claimed to conform to IP54 weatherproofing specifications – useful when operating from rainy fell-tops.

Unlike stuff from Hong Kong or China, the “expedited shipping” method used to send the radio attracted the attention of UK Customs so delivery was delayed by over a week and I had to pay an additional £25 tax and ParcelForce collection fee to receive it.

On opening the box I was extremely impressed with the very high quality of the product. This was one of the most beautifully made hand-held radios I had seen. As far as build quality is concerned this is the opposite end of the spectrum from the little Baofeng. However the little Chinese radio is miles ahead when it comes to usability and performance. The H112PLUS is about the same size and weight as the Kenwood TH-D72 so it is one of the chunkier hand-helds. Programming software, cable and a desk charger are included in the price.

So to the shortcomings. The knob on the top is a rotary control marked Vol/Ch but in fact it only controls the volume in discrete steps. Most of the time when you turn it, nothing happens. It is as if the CPU in the radio is asleep and doesn’t notice you operating the controls for a while. The buttons on the front panel, which are used to change channel and access menu functions, are also a bit laggy in operation. If you try to hurry the radio, the firmware locks up and you have to pull the battery pack. The programming software is also a bit flaky and locks the radio after writing to it, requiring another battery pull.

By the time I received the low band radio I was awaiting an appointment for a scan for my as yet undiagnosed brain tumour and was a bit anxious. I was wondering if I would ever make a 4m contact and so, rather stupidly but with the aim of having something to look forward to I ordered a second, high band version to use on 2m. This arrived after I was out of hospital and attracted a £30 tax and collection fee despite being exactly the same price.

The high band version suffers exactly the same shortcomings as the low band one but as it covers the 2m band I was able to try it out. The main problem I noticed is that it has probably the worst receive audio of any hand-held I have used. There is a compression option which appears to clip the audio and make it sound like those police radios but even with this off the audio is still quite distorted and the actual volume from the speaker is not all that loud. The little UV-3R is much louder and sounds much better!

The programming software allows you to set power level (high/low power) frequency and CTCSS/DCS tone so you can access repeaters. There is no 1750Hz tone burst, of course, and no option I can find for setting the squelch threshold. There are scrambler options that are no use on the ham bands. I then discovered a bug. If you program separate transmit and receive frequencies (as for a repeater) and then save the results as a file, when you load the saved file the frequency splits are lost. The developer has acknowledged the bug and has promised a new version of the programming software.

The output power is about 5W on the low band radio and 6W from the high band one. The battery pack is NiMH and rated at 1500mAh. Someone has told me it is identical to one made by Kenwood. Battery endurance, even on standby, is not great.

When ordering the low band model you are given the option of specifying one of two frequencies for the helical antenna. I chose 69MHz. On the antenna analyzer the best SWR coincided exactly with 70.45MHz, which was rather nice. However the ERP from the helical is about 5dB down on a telescopic whip. The high band radio comes with a short helical that is resonant on 150MHz, but you can pop the cap off and add a few turns to the spring to get it down to 145MHz. The antenna socket is TNC so you need an adapter to use most other ham radio antennas. The speaker/mic two pin jack uses the Icom/Maxon standard.

The radios do work. I even had a 4m contact with a Scottish contest station during VHF field day. Given my health situation I have not had the opportunity to test these radios out in the field with good external antennas to see how they stand up to the high levels of signals encountered on hilltops. However, I attempted to reproduce the test I carried out in the Handheld receiver blocking shootout and the 2m H112PLUS was as bad as the poorest receiver I tested. The received repeater signal cut out when a signal at the bottom of the 2m band was keyed up, when most other radios under the same conditions showed little or no desensing.

Overall I think the H112PLUS is a radio that is of more interest to collectors than someone wanting a real hand-held workhorse. It is well made and the waterproof specification is an attraction but the poor receive audio and flaky software and firmware are a big disappointment and I have doubts about the receiver’s ability to handle high levels of out of band signals without desensing.

The weather here ever since I was diagnosed with a brain tumour has been glorious. One of the bitterest frustrations for me has been being housebound, able to do little more than walk slowly to the shops and back instead of going for walks in the hills and activating Wainwright summits as I had planned to do. On Thursday Olga and I caught a bus into Keswick for a day out. I took along the little Baofeng UV-3R handheld in the hope of catching some SOTA or WOTA activators from the surrounding fells whilst I was there. I was pleased to make contacts with Mark MM1MPB/P and Terry G0VWP/P during the day.

I love this little UV-3R radio. It’s so small and light you can take it anywhere and the range of its 2 – 3W on the slim Nagoya NA-666 antenna I have put on it is amazing. It can receive broadcast radio so I can listen to Classic FM or BBC Radio 3 and if someone puts out a call on the 2m FM calling channel the music is interrupted and I can reply to them. The Baofeng is not ham band restricted so I have also programmed in the 8 license-free PMR446 channels and can use it to talk to Olga who has a little Goodmans set that I bought for a tenner on eBay. I can even dual watch between Olga’s channel and 2m channel S20 so I don’t miss anything.

My only niggling annoyance with the Baofeng is the audio volume level, the lowest setting of which is too high so that any station using wide FM deviation – which most folk round here do – is audible to anyone within a 50m radius. There is a mod for this, which involves putting a resistor in series with the speaker, but having tried a small soldering task a few days ago and succeeded only with a lot of difficulty I think that performing the mod would be beyond me.

I know from the Yahoo group that there is not much quality control on these Baofengs and one or two people have had the misfortune to receive radios that don’t work correctly. But for me this has been the best thirty quid I ever spent on a bit of radio gear.

Unfortunately, Mother Nature has not been cooperating. I’m writing this from Costa Rica and we’ve have a lot of rain here. I was able to get on the air very briefly after arriving on Sunday, making a single contact on 20m mostly just to make sure that the gear was working. I got a little bit of RF into the radio (which I’d seen while testing at home) but the ferrites that I’d brought cleared that up.

The next time I was about to get on the air was Tuesday afternoon, also relatively briefly. I set up for 15m and the antenna behaved very well there, easily tuning the whole band. I worked a few stations in the US southeast (Georgia & Florida) and a relative local in Venezuala. But as the title of this post indicates, rainy season has started here and it’s been raining a lot since then.

Obviously a Buddipole will work in the rain, but the way things are set up here it’s not practical to leave the antenna up and run out in a near-monsoon to make an adjustment to a whip. Of course, trying to do that when there’s lightning around, which there has been, was an even worse idea.

Wednesday was pretty much a complete rainout, though my friends and I were able to go out on the water and jet ski for a couple of hours. (No, I did not attempt to operation TI7/K2DBK/MM). Did I mention that it rained constantly during that whole time?

Today (Thursday) started off looking bad again, raining for most of the early morning, but it did clear up for the majority of our day which included a sightseeing tour to the Rincon de la Vieja volcano. Right at the end of that trip it starting pouring yet again, and while there was a very brief respite after we got back to our residence here, it’s been raining steadily ever since along with a lot of lightning. Needless to say, no radio.

The weather forecast for the next couple of days calls for more of the same, although our touring plans are done and since we’ll be around more I hope that if we get a break from the rain for a few hours I’ll be able to get on the air.

I am disappointed that I haven’t been able to get on the air more, but I’m trying to stay positive and see if I can get on the air for at least a few more hours before it’s time for us to leave.

Welcome to Handiham World!

Photo: Pat, WA0TDA, holds up the the new ARRL 2010 Periodicals on CD-ROM and TravelPlus® for Repeaters CD. Both will be available for our Handiham members to try out at the Radio Camp in August.

Have you ever wondered where you saw that article about the antenna that you could build yourself and that would actually fit into your real estate? What month’s QST was it that had the review of the rig you’re thinking about buying? What’s in QEX, the “Forum for Communications Experimenters”? What about the National Contest Journal?

If you’re anything like me, you probably subscribe to several magazines and don’t really have the time to read every article. I always go through the contents and page through to see what jumps out at me, and in the process I find plenty of interesting articles that I am going to read later or save for reference. Before I know it, the next month’s magazines arrive and I am falling behind in my reading. I’ll have much more time in the winter, so the magazines go on the shelf in my ham shack, ordered by month. Sometimes the articles I wanted to read just never get read, and the reason is that they are too hard to find. It may be that I don’t even recall the title of the article or the author’s name, just the general topic. True, the periodicals search tool on the ARRL website will be helpful, but sometimes I can’t locate the article I want because my shelves are not organized as well as I would like.

I can see to read the print articles. Doing this kind of a search when you are blind can be a much more daunting task. That’s one of the reasons we will be installing the 2010 ARRL Periodicals CD-ROM on a Windows computer equipped with JAWS®, a popular screenreading software program by Freedom Scientific. The upcoming Handiham Radio Camp provides exactly the right opportunity for us to test the accessibility of the Periodicals CD using a screenreading computer operated by experienced blind amateur radio operators. The idea of having an entire year’s worth of QST, National Contest Journal, and QEX, the Forum for Communications Experimenters, available on a single CD with search capability seems a lot better than saving print publications on a shelf – or shoeboxes full of audio tapes or even the new flash memory digital NLS “books”. Most of us just don’t have the space to save more than a couple of year’s worth of old print magazines, and even if we do manage to keep them all in order, finding a particular article can be a chore, so we are looking forward to exploring this ARRL CD during Radio Camp.

One book we have never put onto tape for our blind Handiham members is the ARRL Repeater Directory. Think about it for awhile, and you’ll realize why. Not only would it be like reading the phone book, but it would also be impossibly difficult to use because you could never find anything in it, especially in audio cassette format. Imagine back in the days of books on tape what such a book would be like for a blind user. It would be a box full of cassettes, and one would have to keep them organized carefully. Even then, who wants to listen for hours to find the right spot on a tape that has just the repeater information you need? The lack of an accessible repeater directory for blind hams has been a problem, and even those of us who can see to read a print version can find the lookups of repeaters while traveling a hassle. That’s where the ARRL TravelPlus Repeater Directory on CD comes in handy. While I seldom plan to tote along a notebook computer just for repeater lookups while driving cross country, I do appreciate the pre-trip planning capabilities of the ARRL software. Once can print out a list of repeaters within a user-defined distance along a planned route. That saves the hassle of paging through a print repeater directory during your trip. I find it much more intuitive and easier to use, but what about our blind Handiham members? Would there be some features of the ARRL TravelPlus CD that could prove useful? That is what we are going to find out at Radio Camp in August when we install the software on our JAWS computer and see what we can do with it.

Handiham Radio Camp is August 8 through 13, 2011 at Camp Courage near Maple Lake, Minnesota. The camp repeater, W0EQO-R, is connected to the HANDIHAM Echolink conference and the Vancouver, BC IRLP node 9008. We also plan to have our own experimental low power IRLP node 7051 on the air. The camp station is W0ZSW, and will be operating on the HF bands.

News of Mumbai bombings arrives on Handiham net

I was surprised to hear about terrorist bombings in Mumbai, India from Vispi, VU2WLL, on today’s Handiham Echolink net. He says that he and his sister are both all right. The news media have conflicting numbers of casualties. There will no doubt be much more information later on today as this story unfolds. In the meantime, our thoughts are with the people of India as they cope with this senseless violence.