AmateurRadio.com

It’s been a busy couple of weeks here, all good, but busy. Last weekend, a visit to the shack coincided with a pass of VO-52 according to GPREDICT. I listened and listened and didn’t hear a thing. Being somewhat new to satellites, I always assume that if I don’t hear anything, it’s my fault (it usually is!). I checked the TLEs I was using in GPREDICT and all was ok. I checked the 145Mhz receiver – all ok. Very odd.

I didn’t have a chance to think about it again until yesterday afternoon when I was in the shack working on a review of the Wouxun UV-8D for Practical Wireless and I noticed that VO-52 was due again. Once again, I heard nothing. Again I checked my receiver and the TLEs. I was now starting to think that perhaps it wasn’t me.

On Twitter, I asked my satellite friends if there was any news about VO-52 that I had missed. Ricardo EA4GMZ kindly replied saying that it had been out of order for some days and included two useful links, one satellite status page and secondly to the threads on the AMSAT message board, where if you page down, you will find some messages relating to VO-52.

VO-52 had very quickly become one of my favourite satellites once I got going with it earlier in the year. I hope we shall hear from it again.

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

My thoughts are starting to turn towards amateur radio this autumn.

Unlike in previous years, I cannot imagine being fully fit by then. So, I shall be on the lookout for some new challenges that don’t involve driving, don’t involve building and probably don’t require much, if any, antenna work. Also, it would be helpful if actual talking is kept to a minimum as I find talking very tiring.

I suspect JT65 and JT9-1 will be on the list as I can use (some of) these modes on 630m, 40m, 20m, 10m, 6m, 2m and 70cm with existing antennas.  I may ask for some help to improve my earth electrode antenna for 630m. With luck I may be able to drive again later this year. This means I might be able to restart some field work again.

If you have any suggestions let me know.

Maybe I should try for QRP DXCC on JT65/JT9-1? No talking, use existing antennas and rigs, and a new challenge.

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

I read that July 18th was the first day without sunspots since sometime in 2012. That's not a good sign for sure. I'm definitely not a solar expert, but I do know that zero sunspots is bad for propagation. That said, last night I worked VK5CZ at 0124z on 15m operating QRP from a summit in Australia.Then this morning I worked GW0PEB/P on 15m from a summit in Wales and a couple minutes later snagged HB9BCB/p on 17m from a summit in Switzerland. Not bad for having a spotless sun. Who needs them anyway?

Just in case, let's hope a few show up:-)
Mike Crownover, AD5A, is a regular contributor to AmateurRadio.com and writes from Texas, USA. Contact him at [email protected].

I have taken down my HFAPRS gates. The reason is they all use my MFJ magnetic loop antenna. At this time of the year it needs constant retuning due to temperature variations in the loft. So it is not practical to use it when I can not be in the shack to tweak the turning .

Julian Moss, G4ILO, is a regular contributor to AmateurRadio.com and writes from Cumbria, England. Contact him at [email protected].

I've been intrigued for some months now by the proliferation of SMD parts kits widely available from Asian manufacturers being sold on E-Bay. Resistor, capacitor and inductor kits, containing significant numbers of standard-value parts and in various sizes are being offered at attractive prices. With many sellers throwing in free-shipping, I find myself being tempted more and more to press the "Buy Now" key and fear that I will not be able to hold out much longer.

I have had limited experience with SMD parts, when building a small 40m QRP transceiver several years ago called the SMK-1. As I recall, it had 72 SMD parts....the bigger ones, 1206 size. I recall finding the assembly and soldering of these SMD parts to be somewhat tedious and less than enjoyable. I usually only soldered a half dozen parts at one sitting. After a few weeks of periodic assembly, I was delighted to see the circuit come to life once power was applied as I was definitely not looking forward to trouble shooting the board! Perhaps my technique of fluxing and the method of holding the component in place with a homebrew 'third-hand' device was not ideal or maybe my soldering iron was not properly sized for the job but I do have a desire to try it again.



A 630m transverter, now planned out, would really lend itself nicely to SMD construction but realistically, the only size I would consider is 1206 at the smallest.

Courtesy: www.emeraldinsight.com

 Why I am really contemplating the purchase of more SMD parts is somewhat vexing to me....perhaps it is simply my 'concrete-sequential' thinking style making me lust after all of these tiny parts, with all of them so neatly organized in their holders, begging to be brought to life by my own hands. Or maybe I just want to prove that my 66-year-old eyes and hands are still capable of working with these things.


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

http://www.wonder-wand.co.uk/WonderWand/WW_Photos_files/TCL-ad01.jpg

Rather than go QRT because of the approaching storms, I decided to try my Wonder Wand Tunable Compact Loop antenna indoors on 20m WSPR. The loop is about 0.5m diameter. In my case, more for convenience, it goes to the rig via my Z817 ATU. SWR is perfect 1:1 on the tuned frequency. No TX spots seen yet at 2W, but no shortage of RX spots across Europe so far. The loop is just above the rigs in a far from ideal, indoors location.

WSPR spots so far today on 20m with the indoor Wonder Wand Compact Loop

UPDATE 0916z: My first TX spot on the indoor Wander Wand Compact Loop came from DJ6LB at -28dB S/N.

UPDATE 0944z:  Second TX spot was by DJ7KA at -26dB S/N.

UPDATE 1010z: I QSYed to 15m and am getting lots of spots on TX at just 2W.  Best DX report on 15m is from SM6WZI (1007km) at -6dB/-9dB S/N (i.e. strong) – it is amazing this tiny indoor antenna works so nicely. So far 6 TX spots of my 2W in just 8 minutes on 15m. Incredible. Sorry about the poor photo of the loop, but you get an idea of the set-up. It will work even better on 10m and 6m as the loop is larger electrically. Set-up is totally un-optimised: the loop just happens to be where it is.

UPDATE 1230z:  Now QSYed to 10m and the best DX on the Wonder Wand Compact Loop indoors is now LB9YE (1489km) at -25dB S/N with 2W.

10m WSPR spots with 2W today with indoor loop

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