AmateurRadio.com

The answer is yes, and no.  Using the software utility available here you can stretch the coverage of your UV-3R Mark II.  This

UV-3R Mark II

only works on the Mark II (dual watch display) and the new Plus model.  There are two options for changing the coverage.  You can stretch up from VHF or down from UHF.  Only the UHF option seems to work.  Now, before you run off and do this, let me pass a few warnings.  First of all, the UV-3R is NOT designed to do this, so transmitting at full power on a band your radio was not designed to work on has the potential to fry something.  Second of all, most users have put the output power between 1 and 16 milliwatts (yes, milli), and my tests concur with this.  It does receive OK on 220, but not as well as it does on 2M or 440.  The procedure can be a little complicated, but there is plenty of help at the UV-3R Yahoo Group.

So, does it really work?  During my morning commute, my train passes south of my club’s main repeater site.  Now this is on a rather high building, in one of the highest points on western Long Island, and is pretty much line-of-site for a 4-5 mile stretch of my train ride.  I tested to see if I could key up our 220 machine, and it seems that the effective range was about 4 miles this morning.  Now that was just keying the repeater up.  I’ll have to check to see if I can actually be HEARD on it.  For listening to the 2 or 3 220 repeaters near my office though, it works fine.  Also, keep in mind that this was all done with the stock antenna, which is most likely far from optimal at 220 Mhz.

Once again, I can’t stress enough that if you don’t want to risk breaking your radio permanently, don’t try this.  So far, my little radio has suffered no ill-effects, but your mileage may vary.

-Neil  W2NDG

I received a Soft66LC4 SDR receiver for evaluation. The review of this radio will be in 3 parts, initial impressions, usage test, and full technical test. Here are my initial impressions.

The Soft66LC4 is the newest SDR receiver from Kazunori Miura JA7TDO. There have been several revisions of this inexpensive

Soft66LC4

SDR over the last couple of years. The evaluation unit came in about a week from Japan in a plain envelope with no documentation or software. You are expected to refer back to JA7DTO’s website for help. Although the setup is a bit complicated, it wasn’t too bad for me since I deal with a lot of control software that uses USB-to-serial connectivity. I was pleasantly surprised to find out that my Dell laptop’s internal sound card can process at 192khz, giving me a full 192khz of visible bandwidth.

The Soft66 is a bit larger than an Altoids tin. JA7TDO’s eBay store states that you have to finish the case yourself and drill holes, but it seems that he is doing this for you now. There is an SMA antenna connector, a mini USB port, and an indicator light on one end. On the other end is a 3.5mm audio jack, and a hole for access to an adjustment pot for RF gain. I found that my sample needed a slightly longer mini USB plug as the first one I tried did not stay in well.

Driver installation can be quite complicated but I intend to help him with this by writing up some easy-to-follow instructions. One issue that exists with this SDR for now, but will probably be resolved soon, is that there isn’t a way to control the SDR with WinRAD yet. You have to use the separate control application which makes the process a bit clunky. I believe that once more of these newer LC4 models are out there there will be support for WinRAD and other SDR Applications, as there were for the previous Soft66 radios.

Initial usage tests at my location were favorable, considering my lack of a decent antenna (about 10M of wire in a tree outside my window), and excessive RFI at my location.  I hope to get out to a more remote site to perform the detailed usage review in a more interference-free environment.  Coverage is from 500 khz to 70 Mhz.  For now, the control app does not warn you if you enter a frequency outside that range, but simply crashes.  Luckily, this does not lockup the controller, and you simply need to relaunch the application.  I was able to receive MW AM stations, CW, SSB, data, and AM on the amateur bands, and plenty of SW BC.  I did not try WinRAD’s DRM feature yet.

I’ll try to get this set up for remote access if possible, but for now, with no way to control it other than with the supplied application, I will hold off.  Special thanks to Kazunori Miura for supplying the test sample so quickly, and to my friend WA2CDL, who offered to perform the technical testing.

On JA7TDO’s eBay store these radios sell for $108 plus shipping, and are fully assembled. Well worth the money as long as the proper DLL files are made available for using it with WinRAD. A more extensive test will follow.

eBay store link:  http://stores.ebay.com/HAMShopJapan?_rdc=1

Soft66 page: http://zao.jp/radio/soft66lc/

–Neil W2NDG

A reader sent this comment on my post about Heathkit’s demise:

“It would be a limited customer base, as with all the China crap coming in
hard to compete. Also noticed that they are selling 2mt/440 ht’s and
advertising that you do not need a license!!!look for interference to
public service and emergency com, reports against amateur radio, going
to be a tough nut to crack”

I have to disagree.  First of all, some of the “crap” from China is actually pretty good, and giving the “big 3” some serious competition.  You know, there was a time, back in the early seventies when everyone referred to the influx of Japanese-manufactured electronics as crap too.  I remember this first-hand, as my interest in SW and AM DXing started in 1972.  Look where that has gone.  The Japanese are now the manufacturers of choice for our radios.  Now, I cannot say that all of these new low cost radios are good (first-hand experience with a radio from FDC backs that up for me), but the BaoFeng UV-3R has set a new bar for value in a low-cost mini HT, as well as the highly-regarded Wouxun radios.  It should be interesting as these companies evolve.  Mobile radios are just starting to trickle in now, and who knows what’s next.  Outside of radio, what about smartphones?  Where are most of them made?

I watched this same thing happen with Shortwave receivers over the last decade.  Companies like Degen, Tecsun, and Kchibo, first got into this market by being the manufacturers for labels like Grundig-Eton.  The early radios were not good, but then a funny thing happened.  The engineers listened to the public and made changes.  They adjusted the performance and feature-set of these radios based on what the users were asking for.  This is something that their predecessors never did.  Sony, Panasonic, Philips, and even Taiwan’s Sangean, rarely made changes based on the enthusiasts comments and reviews.  The result is that some of the best performing portable SW receivers for the money now come from China.  Panasonic, and Magnavox, are out of the market here.  Sony only makes one viable offering now, and Sangean continues to get mediocre reviews, after such a promising start.  I personally own a few Tecsun, and Degen radios and although the build quality is not quite as good as the Sony, it’s VERY close now.

As far as selling to the non-licensed public, that problem has always existed.  I don’t think that you were required to produce a license to buy any of the HTX radios at Radio Shack in the eighties and nineties, as well as the various commercial offerings they had.  You were told by the packaging, and again in the manuals that you were required to have a license.  Very few people at hamfests and flea markets ask for licenses before taking the cash from their potential customers.  Add to that garage sales, and classified ads, and you can see that the ability to buy un-authorized radio equipment has always been there.  Recent experience with jamming in my area led me to a small history lesson while investigating the source of the interference.  This has been going on for a VERY long time, and you’d be surprised how much of the problem is caused by licensed Hams.

Craigslist, and eBay have made this easier, yes, and I believe that the equipment being sold should at least be restricted to its intended purpose (limiting Xmit frequencies for Amateur equipment), but we will never stop the sale of equipment to the unlicensed public, just as we will never stop music and software pirating.

The biggest travesty here is the existing players not recognizing the changing market.  Kenwood’s new rig is gorgeous, but is another multi-thousand dollar rig what this hobby needs?  What the HF side of the hobby needs is a competent, basic 160-10 (or 6) transceiver that can keep the interest of a newly licensed ham going, with a target sell price UNDER $500.  50-100 watts would be ok at this price-point, with the option of adding some power later.  I honestly feel that if Kenwood, Yaesu, and Icom don’t wake up, and adjust to the changing market, they might go the way of the classic Shortwave manufacturers.

Sorry for the long editorial, but this is a sensitive subject for me.  I have only been a ham for 9 months, and with all of the obligations I have, and trying to make sure there’s something left for retirement, plunking down $1000 on a radio at the moment is out of the question.  Many of our new hams are in this same position.  Instead of having most of us stay as Technicians, it would be nice to get these new hams interested in something other than their newly acquired VHF/UHF privileges.  A General ticket is a fairly small step from Technician, and having some economical starter radios would help

Some of the kits, in my Kit Roundup post fit the bill, but most are CW kits.  The SSB kits available are usually low power.  There are a couple of examples with a bit more power, but fully assembled the price is already in the Alinco DX-SR8 range.  Having said that, the Alinco is probably the closest rig to what I’m thinking of price-wise, but seems to get rather mediocre reviews.  I guess for $519 you can’t be all that picky.

This is all my own opinion of course.  Feel free to discuss in the comments.

–Neil W2NDG

I constantly search for new kit sources for the kit roundup list. Today I stumbled on this one:

Kit Radio Company KRC-1

–Kit Radio Company – KRC Kits.  http://kitradio.co.uk/page2.htm This UK-based company produces several interesting kits including receivers,

transmitters, and accessories.  All prices are in British Pounds.

• KRC-1 superhet receiver.  This receiver covers MW, and SW (160 thru 40 meters).  Built in a 5-stage process for education.  1) Medium wave TRF receiver driving an earphone. 2) Audio amplifier providing speaker output. 3) The TRF receiver is converted to an IF amplifier 4) Mixer/oscillator converting the receiver to a four band superhet. 5) BFO to enable CW/SSB to be resolved.  £65.99 plus S&H
• KRC-2 regenerative receiver.  Covers 1-30 Mhz. in 3 bands.  Regeneration with a difference.  The regeneration setting on the KRC-2 is unaffected by the receiver tuning or the antenna coupling. How is this achieved?  The regenerative stage is fixed at 10.7MHz and used as an IF amplifier.  This one reminds me of the Radio Shack Globe Patrol regenerative I built as a kid.  £54.99 plus S&H
• KRC-4 beginners TRF receiver.  2 bands; 800KHZ to 1.6MHZ and 4.0 to 8.0MHz.  A TRF receiver designed for the beginner. Using a reflex circuit this receiver employs only one transistor. Band selection is achieved with two plug in coils, these are pre-wound and both coils come as part of the kit.  £24.99 plus S&H
• KRC-5 direct-conversion 80 meter receiver. Designed around two well proven chips the SA602 and LM386. Employing a VFO that can be calibrated to fulfill your  requirements.  £25.99 plus S&H
• KRC-X-1 QRP transmitter.  Covers 7, 10 and 14MHz.  All you do is plug in a different crystal assembly to change band and re-tune the antenna.  0.5 to 2 watts output.  £69.99 plus S&H
• KRC-X-2 80/160 meter transmitter.  A simple cost effective transmitter covering either the 80 or 160 meter bands. It provides 2 Watts of RF power when operating from a 12 Volt supply. With a peak output rising to 8 Watts if external modulation is applied.  Please specify 160 or 80 meters when ordering.  £33.99 plus S&H
  

  Kit Radio Company KRC-X-2

One World Trade Center

Here in Manhattan, the highest point above the hustle and bustle, is the Empire State Building. Or, it was at least until yesterday. As of April 30th, 2012, the new One World Trade Center is officially the tallest building in Manhattan. As I listened to the news yesterday morning this got me thinking about the antennas on the Empire State Building, and the logistics and history of them. For those of you fascinated by these things, here are a collection of resources to consult, and some of what I learned about the tallest antennas in the city.

I found a great article on the history of the TV mast at www.lnl.com/esbantennas.htm.  The TV antenna portion was originally a mooring mast for dirigibles which was re-purposed 8 months after the building was completed in 1931.  The article was a reprint from Broadcast Engineering magazine, August 1967.  The mooring mast, which was part of the original design of the building, was supposed to be used by passenger airships for anchoring, while the passengers disembarked down a gangplank to the 102nd floor.  In reality, this proved to be unsafe, as the updrafts and other air currents around the building would not allow for safe mooring.  Only one dirigible ever successfully anchored to the mast after a 30 minute ordeal with mooring ropes, and even then was only able to stay anchored for 3 minutes.  The first entity to transmit from the re-purposed mast was NBC who began experimental TV transmissions from the ESB in December of 1931.  For you fans of  TV’s Fringe, the sequences shot in the alternate universe, show modern dirigibles moored to the Empire State Building, as well as a skyline that still contains the Twin Towers.

Here also, is another great article; from CQ Amateur Radio, March 2011, Digging Deeper With Bill Baker, W1BKR, where Bill visits the transmitter site for channel 13, WNET, in the Empire State Building.  Great pictures of the mast, and of the massive filter network that all signals have to pass through first to reduce interference with each other.

Today there are over 130 antennas on the Empire State Building at various heights.  This site lists the options available to anyone interested in locating an antenna up there.  I’m not sure how many Amateur Radio repeaters are on the building as of today, but one I know for sure is KQ2H.  KQ2H has a large linked network of repeaters that give it incredible range, including a 10 meter input up in the catskill mountains.  I can listen to the ESB 220, 440, and 900 repeaters from my desk at work, and get an idea of what’s going on with 10 meter propagation by taking note of where the incoming stations are.  Lately I’ve been hearing hams from Australia and New Zealand hitting the repeater late nights between 8 and 10 PM EDT.  KQ2H’s 10 meter FM machine transmits on 29.620, and listens on 29.520.  It is usually available on EchoLink, although the link has been down lately.  On EchoLink you need to search for the callsign W2FLA which belongs to the linked 2 meter repeater in the system up in the mountains.

Antenna Mast at the E.S.B. from CQ, March 2011 "Digging Deeper with Bill Baker"

Many of these entities that have antennas on the ESB, relocated there after the Twin Towers fell in the 9/11 disaster.  I was looking for antenna leasing info for the new One World Trade Center building, but nothing seems to be posted yet.  There is definitely going to be an antenna structure on the top of the building though.   I’d love to take a couple of radios up to the ESB observation deck sometime, but I hear the officials can be a little touchy about these things (understandably so).  As I learn more about One World Trade Center I’ll post it at a future date.

Does anyone else out there have stories about antennas on skyscrapers (like the former Sears Tower in Chicago, or even the CN Tower in Toronto)?  Leave some info in the comments.  73.

–Neil  W2NDG

Stormville Airport Flea Market

Yesterday was opening day at the Stormville Airport flea market, which is about an hour and a half north of New York City.  This to me indicates the start of this year’s flea market season.  What’s available at a non-hamfest flea market?  Well, my radio interests extend beyond Amateur Radio, so I always manage to find something interesting.  I have a small collection of antique transistor radios, and always look for new, and interesting samples.  I picked up a pristine Bulova MW/SW portable last year, which reminded me of a set I had as a kid.  It has been re-capped, and is playing rather nicely.  Some purchases I’ll admit end up on eBay eventually, after a good evaluation and cleaning.  The Bulova is a keeper though.

So, is there anything of interest to a Ham at these events?  For sure!  A smartphone with good internet service is a HUGE help at flea markets.  Quick lookups can tell you a lot about a prospective purchase.  Yesterday I saw a few items, including some test equipment, an SWR meter, and 3 boxes filled with commercial radios and accessories.  Watch the boxes under the edges of the tables for things like comercial radios, especially later this year when businesses and municipalities start dumping equipment that isn’t narrow-band compliant.  The box I found had 450 mhz (not convertible to 440 according to some quick research on the iPhone) and 800 Mhz equipment, but a nice collection of Yaesu and Icom chargers, and some remote speakers.  There was also a Motorola power supply for a mobile, a bunch of batteries, and a bag of about 30 HT antennas.  After talking to the proprietor the price dropped to $100 for all three boxes of equipment.  Reality struck though, and I passed on the lot, since I’m still sorting through the last pile of commercial radios I picked up.

Motorola JT1000 "Jedi"

As far as the Motorolas go, Watch for the VHF and UHF Jedi series radios.  Many of the Jedis can be reprogrammed for amateur use.  Ask around, and I’m sure someone you know through your club, or casual ham contacts knows how to program these.  It requires the correct cable (eBay) and the Motorola MTSX software.  Some of my fellow LIMARC members can attest to my fondness for the Motorola Jedi Series radios, which when successfully reprogrammed make a very nice 2 meter or 440 HT for event use, even if they are a bit heavy.  The batteries will last through a whole event, and then some, and the durability is legendary.  The common models to watch for are: HT1000, MT2000, MTS2000, MTX2000, JT1000, and MTX9000.  The JT model is a great find, since it is actually field programmable.  The 9000, is an inexpensive way to get on the 900 Mhz band.  If you grab one that cannot be reprogrammed for Amateur radio use, don’t fret!  Since most of the Jedis can be programmed to operate narrow band, they can be re-sold for commercial use, and usually at a nice profit.  More info can be found over at Radio Reference.

LIttle Tattler Headphones from oldheadphones.com

One booth had a nice pile of antique headphones.  I picked out a pair of Little Tattlers in fairly nice condition for $5.  These will be used for a crystal radio project for now after getting cleaned up. There were 2 fairly clean Hallicrafters receivers, both S-120s though, which don’t impress me enough to consider.

We headed home with the Little Tattlers, a very interesting old espresso pot, and a bag of wasabi peas.  Nice weather, good company, and an enjoyable hunt for interesting garb.  A successful morning.

–Neil W2NDG

RFinder, the BEST repeater locator app on Android is now available in the iOS App Store. Bob has been working hard on getting approval for awhile now, and people like me who switched from Android to iOS have been waiting for this. If you’ve used any of the other available repeater apps and been disappointed, you really must try this one. Worth every penny at $9.99. If you’ve used Bob’s Android version you will be pleasantly surprised by the huge speed increase with the iOS release due to an upgrade to the database the app uses. Note to Android users: this will also speed up the original Android version on RFinder.

RFinder shows you all repeaters in your location in a selectable radius, or allows you to override the location for a custom search. Sorts by location, frequency, callsign, or displays on a map. Locates all repeaters in the database by band ( you choose which band or bands) 10M thru 1200. Corrections and additions can be submitted for paid users. Give it a try!

RFinder in the App Store. For iPhone and Ipad.

–Neil. W2NDG