Resurrecting the TS-940 with the help of James M1APC

Having enjoyed using the IC-740 over the last few weeks and making some fun HF QSOs, there was another of my old HF rigs that I wanted to get going again. My old TS-940, bought second-hand from Jan G0IVZ, perhaps 20 or more years ago, maybe more had been sat up in the loft since we moved to Oxfordshire 10 years ago. I’d got it down some months ago and had been disappointed to find that only half a display lit up and it wasn’t well at all.

A few weeks ago, I noticed a post from my friend Matt 2E0MDJ on Facebook saying that he was having a repair done by James M1APC. James is based in Cornwall and is well worth following on Facebook (search for ‘The Shack’) and he posts pictures of many of the rigs that he has in for repair – which is fascinating to see.

Anyway, a couple of weeks ago, I emailled James to see if he would be willing to look at my TS-940. The answer was yes, so last week, I shipped the rig down to James to have a look at. I was delighted to see, on Facebook, last night a picture of my TS-940 lights bright and working again! James also sent me a video of the rig running on 10m – it sounds great.

James has the rig on soak test but tells me that he hopes to have the rig back with me very shortly. I’m really looking forward to it!

My plan is to have it on the bench, alongside the IC-740 and the FT-847, for a little CW, SSB and AM on the HF bands. Assuming it works well, and I am sure it will, that will probably free up the FT1000MP to go elsewhere.

If you want to find James M1APC on the web – he has a site here with some contact details.


Tim Kirby, G4VXE, is a regular contributor to AmateurRadio.com and writes from Oxfordshire, England. Contact him at [email protected].

Resurrecting the TS-940 with the help of James M1APC

Having enjoyed using the IC-740 over the last few weeks and making some fun HF QSOs, there was another of my old HF rigs that I wanted to get going again. My old TS-940, bought second-hand from Jan G0IVZ, perhaps 20 or more years ago, maybe more had been sat up in the loft since we moved to Oxfordshire 10 years ago. I’d got it down some months ago and had been disappointed to find that only half a display lit up and it wasn’t well at all.

A few weeks ago, I noticed a post from my friend Matt 2E0MDJ on Facebook saying that he was having a repair done by James M1APC. James is based in Cornwall and is well worth following on Facebook (search for ‘The Shack’) and he posts pictures of many of the rigs that he has in for repair – which is fascinating to see.

Anyway, a couple of weeks ago, I emailled James to see if he would be willing to look at my TS-940. The answer was yes, so last week, I shipped the rig down to James to have a look at. I was delighted to see, on Facebook, last night a picture of my TS-940 lights bright and working again! James also sent me a video of the rig running on 10m – it sounds great.

James has the rig on soak test but tells me that he hopes to have the rig back with me very shortly. I’m really looking forward to it!

My plan is to have it on the bench, alongside the IC-740 and the FT-847, for a little CW, SSB and AM on the HF bands. Assuming it works well, and I am sure it will, that will probably free up the FT1000MP to go elsewhere.

If you want to find James M1APC on the web – he has a site here with some contact details.


Tim Kirby, G4VXE, is a regular contributor to AmateurRadio.com and writes from Oxfordshire, England. Contact him at [email protected].

Flying the flag

Well not quite, but flagpoles do make an excellent way of hanging a long wire, as you will find out below:






My friend Pete (G4WQR) rang me recently, he had been looking for a couple of 20ft poles, his current anchor for his long wire a tree, was going to have the chop. He said, "have you seen the price of 20ft poles? By the time you get one home via the post your talking £50!! Do you have any ideas Steve?" I said "leave it to me and I will have a look around".

Sure enough, anyone advertising aluminum for antenna work is expensive! But I had seen Flagpoles recently on ebay, and I wondered if these would be good enough to use? The spec looked good, and as I was not going to be the guinea pig they had got to be worth a try at half the price of antenna poles from emporiums.

He took my advice and ordered a pair from the link I found on ebay, we waited, they arrived very quick! Both well boxed, perfect just made for the job! I went over to see recently, by which time he had managed to errect one:



The contents of the box below including flags. (not shown is another small box which contains a few accessories, including cord, and a pulley which is perfect for hoisting the antenna). The small black 2ft tube is the ground sleeve, which you have to concrete in. The Pole is 2" diameter sectional, which simply slots together to form the complete length.





After viewing and taking a few photos, I was asked if I could dig a 2ft hole for the second pole and a mix a bit of fast setting concrete, easy done than said, phew! I did earn a few mugs of tea and a bacon sandwich.



Concrete complete with one section of pole installed in the sleeve:




Conclusion, an excellent economic way of hanging a long wire for HF work. The flagpole may be suitable for a small 3 element 2m beam if well guyed, and maybe a couple of exhaust clamps to hold the sections together a bit tighter?

I will be buying a set now too!

Ebay reference:

http://www.ebay.co.uk/itm/20ft-FLAGPOLE-ALUMINIUM-FLAG-POLE-WITH-2-FLAGS-/170590373427?pt=UK_HomeGarden_Garden_GardenOrnaments_JN&hash=item27b7fa8633 

Steve, G1KQH, is a regular contributor to AmateurRadio.com and writes from England. Contact him at [email protected].

Largest Sunspot Region (so far) in Sunspot Cycle 24

Look at this huge sunspot, the largest yet of Sunspot Cycle 24! It is about the same diameter as Jupiter! Notice how tiny Earth is, in comparison. Sunspots are regions on the Sun’s photosphere, formed by the “convection” of solar plasma deep inside the Sun, causing the twisting and shifting of magnetic fields. They look like spots on the photosphere because they are cooler than their surrounding solar material, giving them their dark, blemish-like appearance.

NOAA AR 2192

Close-up view of NOAA Active sunspot Region AR 12192 (short: 2192)

The sunspot is the largest since November 1990, and is larger than a monster sunspot that spawned a series of major solar flares over Halloween in 2003. AR 2192 was one of the biggest observed sunspots of all time, ranking 33rd largest of 32,908 active regions since 1874, according to NASA scientists C. Alex Young and Dean Pesnell.

Interestingly, this sunspot never released any major coronal mass ejection (CME), because the magnetic fields were too strong to let any significant plasma escape! However, this sunspot group unleashed a fair number of moderate to strong x-ray flares (see one of them in this video at < http://g.nw7us.us/1s7L0vF >). All told, AR 2192 popped off 26 M-class flares, and six X-class flares! Of course, during the last sunspot cycle, Cycle 23, there were many active sunspot regions unleashing flare after flare within hours of each other. That’s typical during the active phase of most sunspot cycles. This cycle, however, is one of the weakest on record, so this large sunspot with its many flares is exciting.

A Close-up of AR 2192

A Close-up of AR 2192

Each sunspot region gets a consecutive number assigned to it by the National Oceanic and Atmospheric Administration (NOAA). This sunspot region is NOAA AR (active region) Nr. 12192 (we often drop the first digit when speaking of a sunspot, so in this case, this region was often referred to as AR 2192).

One of the many x-ray flares originating from Active sunspot Region AR 2192 - this one seen in Extreme Ultraviolet at 131 Angstroms.

One of the many x-ray flares originating from Active sunspot Region AR 2192 – this one seen in Extreme Ultraviolet at 131 Angstroms.

This sunspot region increased the ionization of the ionosphere, creating excellent conditions on all of the high frequency spectrum (shortwave, or HF). Even ten meters was alive with world-wide propagation. And, the best news is that this provided an exciting playing field for the CQ WW SSB contest in late October, 2014.

This sunspot region has now rotated away, but may return on about 24 days.

Credit: NASA/SDO/HMI

Check out: http://SunSpotWatch.com

Get the space weather and radio propagation self-study course: http://NW7US.us/swc


Visit, subscribe: NW7US Radio Communications and Propagation YouTube Channel

630m Crossband Summary



Friday evening's 630m crossband activity was 'interesting' in many respects. Propagation, which had been improving slowly, chose to follow Murphy's Law. The K-index, holding at a quiet '1', rose to level '3' by the time our event had concluded, as the geomagnetic activity ramped up. Additionally, lightning pocketed various areas of the continent, making listening noisy for many.

From here on Mayne Island (CN88iu), good two-way CW crossband contacts were made with the stations in the following order:
  • N7IO (Seattle, Washington)
  • VE7CA (North Vancouver, BC)
  • KK7UV (Missoula, Montana)
  • NW7E (Bend, Oregon)
  • KU7Z (Ogden, Utah)
  • VA5LF (Saskatoon, Sakatchewan)
  • K7SF (Portland, Oregon)
  • VE7BKX (North Vancouver, BC)
  • K6TOP (Los Gatos, California)
  • ABØCW (Westminster, Colorado)
  • NO3M (Saegerton, Pennsylvania)
  • KB5NJD (Duncanville, Texas)
  • W7MTL (Independence, Oregon)
'Heard' reports were received from:
  • KØSBV (Tucson, Arizona)
  • WB6DCE (Seaside, California)
  • KO6BB (Merced, California)
  • K6CLS (Palo Alto, California)
  • WY3B (Kaneohe, Hawaii)
  • AA7U (La Grande, Oregon)
More than one of the DX contacts mentioned using just their HF dipole for listening to my signals on 630m and simply 'A-B' switching their transceiver's frequency while two of those sending 'heard' reports were using 100' longwires. Mike Tuggle (WY3B) in Hawaii was using his amazing 1-MOSFET regen and small inverted 'L' !

I was also more than excited to exchange signal reports with Pennsylvania and Texas. Considering conditions, this distance was far beyond my expectation but both of these stations have very efficient, dedicated 630m antenna systems.

John, VE7BDQ, worked the following stations on crossband:

  • VE7CA (North Vancouver, BC)
  • W7DRA (Seattle, Washington)
  • N7IO (Seattle, Washington)
  • NW7E (Bend, Oregon)
  • KK7UV (Missoula, Montana)
  • KU7Z (Ogden, Utah)
  • VA7JWS (Delta, BC)
  • VA5LF (Saskatoon, Sakatchewan)
  • WB6W (Oysterville, Washington)
'Heard'  reports were received from:
  • K5HK (Reno, Nevada)
  • KØSBV (Tucson, Arizona)
  • WY3B (Kaneohe, Hawaii)

It was gratifying to see all of these fellows making the effort to listen for our signals or to attempt the QSO.

This exercise taught me a few things about our new band.
  • It is not necessary to have huge antennas and acreage to make this band work. Good solid contacts can be easily made with small backyard antenna systems.
  • With good systems on both ends, transcontinental QSO's can be made.
  • There really should be more interest by Canadian amateurs in their newest band as so much work has been put into securing this portion of the spectrum as a ham band. It was very disappointing not to work any stations in VE6, VE4 or VE3 land.
  • There is already much interest in this band by U.S. amateurs, many of them anxiously awaiting the day that they can also call it a ham band.

I would like very much to continue this type of crossband activity to try and generate more interest in our new band. I'm presently considering a weekly, one-night crossband operation, similar to Friday's event, perhaps running for one hour per week. The main difficulty will be in getting the word out to those that might wish to participate.

Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].

CQ WW SSB Contest last weekend – guess who forgot?

Darn it! Yet again I forgot this most excellent contest last weekend, although I would have been very restricted as we had our little grandchildren staying. They take priority. I must try next year. Last year I missed it as I was in Addenbrookes Hospital still very ill. The last time I caught it was 2012.

Although I do not much like contests, this one is always a good test and I often fill a few logbook pages with DX contacts. Exchanges are simple and quick. CQWW is usually a good way to increase the DXCC score. I always use real QRP power.

I dislike CW contests as they are too much like hard work. On SSB you can usually work stations, even with 2-5W QRP, especially later on when the big stations have already worked loads and are glad of extra points.


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

Arduino Frequency Display For Kenwood TS-520S HF Ham Radio PART 5

This is PART 5 of the project “Arduino Frequency Display For a Kenwood TS-520S HF Ham Radio”.
Steve Leander from www.kv6o.com picked up where I left off in part 4 and completed the project.
He designed a complete DG5 emulator Arduino shield starting from the prototype circuit and adding 5v power regulation and support of a LCD display. Steve completed the software and shared the BOM list, parts purchase links, circuit drawings and his code (here). Thank you Steve for finishing the DG5 emulator board and Arduino code!

Many thanks also to Larry from YouTube Channel “RadioHamGuy” for helping with testing.
Larry makes many great videos about ham and CB radios.

Links to all parts: (PART 1), (PART 2), (PART 3), (PART 4), (PART 5)

 .

 

Photo Gallery

CLICK PHOTO for gallery view and click a SECOND time for hi-resolution image. Click thumbnails on lower right and lower left of gallery to navigate gallery photos.

Arduino Frequency Counter part5 (1)
Arduino Frequency Counter part5 (2)
Arduino Frequency Counter part5 (3)
Arduino Frequency Counter part5 (4)
Arduino Frequency Counter part5 (5)
Arduino Frequency Counter part5 (6)
Arduino Frequency Counter part5 (7)
Arduino Frequency Counter part5 (8)
Arduino Frequency Counter part5 (9)
Arduino Frequency Counter part5 (10)
Arduino Frequency Counter part5 (11)
Arduino Frequency Counter part5 (12)
Arduino Frequency Counter part5 (13)
Arduino Frequency Counter part5 (14)
Arduino Frequency Counter part5 (15)
Arduino Frequency Counter part5 (16)


Todd Harrison, KF7NBI, is a regular contributor to AmateurRadio.com and writes from Arizona, USA.

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