Universal Serial Bus (USB) is one of the few interfaces on computers that is certainly a big success story. You plug in your Camera, Memory stick etc, and in most cases it loads up the drivers and in a few seconds you are away, who can remember the hours spent messing around configuring RS232? However, on smaller devices, Tablets and Mobile devices, the USB socket and plug are scaled down in size (Micro or Mini USB), my Chuwi Vi8  is no exception with only "One" Micro USB socket and one mini HDMI:




The One micro USB socket is not only used for data, but also for charging the device. A lot of excess  daily wear and tear, plugging in and out switching between USB devices. Of course the idea of cutting down to one socket is to help keep costs down in production, but how long can the socket possibly last before something gives? 







The best way is to expand by using a cheap USB Hub, and there are quite a few different types available for a couple of Pounds. These also allow conversion back to standard USB for other devices, and a seperate power feed via another Micro USB socket which can be used to charge the device while the hub is connected in theory anyway, read on:








Although this solves the problem of USB connection. There is another problem with this arrangement, the weight of the hub and devices hanging on the end of the Tablet, put unwanted stress on the USB Micro socket on the side of the tablet, there has got to be a be a better way of fixing this and tidying it all up.



I was lucky, I had a  case that came with a USB Keyboard, could I work out some sort of method of attaching the hub to the case? I had an idea!





A visit to a discount stationary shop while I was in town, I came across a packet of medium sized binder clips. The sort you use for holding files of paper together and hanging up on a hook for reference. The clips came in a pack of twelve for 69p making the fix less than 6 pence!






The clip provides an excellent amount of force suitable for the job of trapping the hub to the rear of the case. There is no movement and it is quite secure:








Once happy that it is square and fixed to the rear of the case, the two leverage arms, hooks or whatever you wish to call them can be detached from the main body of binder clip and discarded.




This provides the solution, and as you can see all the weight and stress is removed off the main cable and the micro USB socket on the tablet. With the sockets happy and tidy on the back of the case ready for use:


All seemed ok?  I could then use the hub with various USB devices, but when I came to charge the tablet via the micro USB charging socket on the hub, this was found not to work? I came to the conclusion it was not wired into the hub or faulty in someway, I contacted the ebay dealer for a replacement he offered me $1, so I had to use the ebay tools to force his little Chinese hand to give me my full refund.

Shortly after, I found what looked to be a better USB hub from another reliable ebay dealer which had a switch to change between charge, or data, plus an extra USB Port:



This was a slightly tighter fit under the binder clip due to the hub casing being slightly thicker, but all is now well, I can now charge the tablet without removing the mini USB from the side of the tablet, plus I have three USB sockets at hand, one which is taken up with the USB keyboard in the case:







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

'29 MOPA

I spent about five hours last night in the ARRL 160 CW contest, working 321 stations in 74 sections. Conditions were excellent, with my 150W sustaining long runs and big pileups. It reminded me very much of the old F2 days on 6m, running huge pileups of JA's. Unfortunately I'll not be able to continue tonight because of the conflict with the '29 QSO Party.






In reality, I may not be in that one either, as right on schedule the winds have picked up once again, with gusts to 83 km/h predicted throughout the day ... I'll be lucky if the power stays on for the QSO Party tonight. As well as doing their best to blow my antennas around and make my already shaky '29 signal sound even worse, these high winds all too often result in long power outages here in the Southern Gulf Islands ... my fingers are crossed, as they are every year at this time.

courtesy: http://www.theweathernetwork.com/weather/canada/british-columbia/mayne-island-6

If I'm lucky enough to still have power, this will be the inauguration of my newly-constructed MOPA '29 rig ... a two-tube, Master Oscillator Power Amplifier. This rig will be much more 'wind-proof' than my previous mainstays, a single-tube TNT or the Hull Hartley. Both of these self-excited oscillators sound overly 'melodic' when directly coupled to an antenna swinging, or more often, blowing like crazy, in the wind.

If you ever wondered what the ham bands may have sounded like back in 1929, have a listen this Saturday as well as next Saturday night. You will hear some amazingly good signals being generated by these '29 state-of-the-art transmitters as well as some pretty awful sounding ones. It was the pretty awful-sounding ones that led to the crackdown for amateur radio in 1929 as hams were forced to clean up their act or suffer the consequences.

Activity will gather around 3550-3580 kHz and 7100-7125 kHz ... the second weekend will see some meet on the very low end of 160m for an hour, probably around 0400z. I hope some of you will be joining the fun as well, with your newly-constructed 'old' rig!
Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].

Amateur Radio Weekly is curated by Cale Mooth K4HCK. Sign up free to receive ham radio's most relevant news, projects, technology and events by e-mail each week at http://www.hamweekly.com.

I recently received Serial # 20 of the commemorative paddle built for the ARRL by Pietro Begali. As you can see below it is the Begali Sculpture paddle with both the ARRL Logo and the Begali logo. The Serial # is on the bottom.

The key is wonderful and it looks good on the desk. It is still available on the ARRL website.






Mike Crownover, AD5A, is a regular contributor to AmateurRadio.com and writes from Texas, USA. Contact him at [email protected].

I recently received Serial # 20 of the commemorative paddle built for the ARRL by Pietro Begali. As you can see below it is the Begali Sculpture paddle with both the ARRL Logo and the Begali logo. The Serial # is on the bottom.

The key is wonderful and it looks good on the desk. It is still available on the ARRL website.






Mike Crownover, AD5A, is a regular contributor to AmateurRadio.com and writes from Texas, USA. Contact him at [email protected].

I found a fox! No, not a real fox…a QRP fox! I took a break from watching the Packers get whooped by the Lions, and ran up to the shack for a bit of relaxing. I turned on the KX3, and it was still tuned to 3.550 CW. Right away came N0UR calling CQ FOX. I haven’t participated in the fox hunts before, but hey, this had to be destiny! Jim in MN picked me up right away…first call! He did have to ask for my power (5W) as in the excitement I forgot to send it!

Thanks Jim for the hunt! If you’re interested in giving QRP a try, and you like a bit of a challenge, check out the QRP Fox Hunt page.

Michael Brown, KG9DW, is a regular contributor to AmateurRadio.com and writes from Illinois, USA. Contact him at [email protected].

I found a fox! No, not a real fox…a QRP fox! I took a break from watching the Packers get whooped by the Lions, and ran up to the shack for a bit of relaxing. I turned on the KX3, and it was still tuned to 3.550 CW. Right away came N0UR calling CQ FOX. I haven’t participated in the fox hunts before, but hey, this had to be destiny! Jim in MN picked me up right away…first call! He did have to ask for my power (5W) as in the excitement I forgot to send it!

Thanks Jim for the hunt! If you’re interested in giving QRP a try, and you like a bit of a challenge, check out the QRP Fox Hunt page.

Michael Brown, KG9DW, is a regular contributor to AmateurRadio.com and writes from Illinois, USA. Contact him at [email protected].