AmateurRadio.com

Last years shot of my planned location for today

It turned out to be a fantastic day  lots of sunshine and temperatures in around 23C. I was long over due and it was time to  pack up the KX3 and go on an outdoor trip with the rig. I brought along the Alexloop as well to give it a go outdoors.  Part of planning is making sure you have all that you need for the trip and not just radio stuff. There is water, one of those chairs you sling over your back, hat and sunglasses without these the trip could be not as comfortable. I arrived at my "spot" that I have gone to in the past found a nice parking spot in the shade. I then proceeded to unpack the car but could not believe the amount of mosquitoes that were buzzing around me. If planning had been better repellant would had been on the list but in all fairness at this time of year mosquitoes were the last thing on my mind. It was now time for adaptability and move to another location.

New setup in town

 There is no way I could have setup and been comfortable with the bugs at this location. I was now heading back to town and to another location. This one was along the river in town and always has a nice cool breeze off the river. I found my spot and setup did not take long at all and there was a table that was available as well. The Alexloop was very easy to setup and very fast to get it tuned up on 14.060. The KX3 was set to about 2 watts output and so began my CQ's. About 15 minutes into the portable operation the KX3 went

All packed up.

dead!! This has happen to me in the past with this radio and I knew exactly what is was! It was very poor planning on my part....the KX3 batteries were dead. Well not dead exactly but below the minimum voltage needed to operate the radio. That was the end of my out door adventure for the day and the radio is now at home getting it's batteries recharged. Monday is a holiday up this way and depending on the weather maybe I will give it a go on Monday.Going to have to look into a second set of batteries so I always have a charged set ready to go.

KX3 charging

Mike Weir, VE9KK, is a regular contributor to AmateurRadio.com and writes from New Brunswick, Canada. Contact him at [email protected].

Last week I noticed that the Raspberry Pi camera was available. At the princely sum of £20 including VAT, I ordered one from CPC It arrived very quickly but I didn’t have time to do anything with it until yesterday.

The camera is a PCB on the end of a ribbon cable – all very simple. I found the following instructions on the CPC site for installing the camera. OS and firmware updates are required to the Pi in order to use the camera. I followed the instructions through and didn’t encounter any problems, although somehow I managed to download the wrong script for the rpi-update (in the end, I used the procedure here https://github.com/Hexxeh/rpi-update)

I did have to take the Pi out of its’ case in order to connect the camera – and I have seen some correspondence which suggests that a case which accomodates the camera might not be far away.

Getting the camera going was fine, although this is where the CPC instructions fell down.  They mention software on the Pi called raspicam. I tried running it, only to find that the software wasn’t there. Initial reaction was that I’d messed up, but actually no, the software had been renamed and you need to look for raspistill and raspivid

I found the easiest way to attach the camera to something to hold it still was BluTack although trying to make that work on an odd angle, pointing the camera out of the window was a little frustrating!

Picture quality was good. It struck me that you could easily use the Pi and the camera for a shack webcam.

My other Raspberry Pi is dedicated to running my DSTAR gateway. I thought that I would upgrade the OS  in the same way today, although I’ve not upgraded the firmware as I didn’t want to use the camera on that machine (doubtless there are other improvements). The upgrade procedure took over 2 hours.

I also took the opportunity to upgrade Jonathan, G4KLX’s DVAPNode and Gateway software to the latest version. First time I brought the system up, the processor went to 100% and stayed there and I wondered what I had done! However, after a rather inelegant shutdown, involving removing the power – and bringing the system back up everything seemed to be working as it should, once again.

Proving it, I had a really nice DSTAR QSO with Horacio LU1BJW in Buenos Aires. I understand that DSTAR is not everyone’s cup of tea, but it does enable some very interesting QSOs to be made.

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

I just finished a contact with a very loud Austrian station, OE3DIA on 10 metres, who took time out while working a string of stations to give me a complimentary audio report, quite unsolicited. It’s good when that happens! The comment was “Very nice audio cutting through the QRM” I was using the K3 at 80 watts and the mike was one of those Heil mikes with the dual insert, set to “narrow”. The K3 transmit audio equalisation is factory standard, in other words flat.

As it happens I had just been doing some audio comparisons between the KX3 and the FT-817. There has been a thread going on the KX3 Yahoo group started by a disenchanted American ham who claims that the FT-817 has punchier audio than the KX3. It’s rubbish, to put it politely. The KX3 has a built-in speech compressor, while my 817 has an RF processor made by Joachim, DF4ZS (more details on my FT-817 page) built into the microphone. Without it there is just no comparison.

I recorded some audio clips so you can hear for yourself:

• FT-817 with standard microphone, no compression
• FT-817 with standard microphone and DF4ZS compressor
• KX3 with MH3 microphone, mic gain and compression both set to 30

There is a bit of distortion on those clips which was not noticeable when listening on the radio. I think I might have a problem with my sound card.

I’m not sure if the difference are that noticeable in those clips, but when you look at the needle of the power meter the KX3 certainly has the more punchy signal.

Both the FT-817 and the KX3 were running off 13.8V and set to 5 watts output. I couldn’t compare them on battery power as I don’t have the charger board for the KX3 and the external battery pack (10xAA NiMH cells) I intended to use appears to be past it and the KX3 kept cutting out on voice peaks.

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

Series Six Episode Ten of the ICQ Podcast has been released. News Stories include :-

• British Amateur Radio Lighthouse Society Change
• Help Hurricane Net Control Stations
• Cambodia and possible Myanmar op
• VK9 now SOTA classified
• New 24 GHz EME world record
• South Africa allocates two 5 MHz channels
• VO-52 satellite completes eight years in orbit
• VK hams invited to use VI 103 WIA
• Raising the public profile of Amateur Radio
• Isle of Man special callsign
• SSB using a Raspberry Pi
• HamTV from the International Space Station

North American report from Frank Howell (K4FMH) and Martin Butler (M1MRB & W9ICQ) discusses Squelch Systems

Colin Butler, M6BOY, is the host of the ICQ Podcast, a weekly radio show about Amateur Radio. Contact him at [email protected].

Series Six Episode Ten of the ICQ Podcast has been released. News Stories include :-

• British Amateur Radio Lighthouse Society Change
• Help Hurricane Net Control Stations
• Cambodia and possible Myanmar op
• VK9 now SOTA classified
• New 24 GHz EME world record
• South Africa allocates two 5 MHz channels
• VO-52 satellite completes eight years in orbit
• VK hams invited to use VI 103 WIA
• Raising the public profile of Amateur Radio
• Isle of Man special callsign
• SSB using a Raspberry Pi
• HamTV from the International Space Station

North American report from Frank Howell (K4FMH) and Martin Butler (M1MRB & W9ICQ) discusses Squelch Systems

Colin Butler, M6BOY, is the host of the ICQ Podcast, a weekly radio show about Amateur Radio. Contact him at [email protected].

Series Six Episode Ten of the ICQ Amateur / Ham Radio Podcast has been released. The latest news, Martin Butler (M1MRB & W9ICQ) and a report from our north American correspondent Frank Howell (K4FMH).

• British Amateur Radio Lighthouse Society Changes
• Help Hurricane Net Control Stations
• Cambodia and possible Myanmar op
• VK9 now SOTA classified
• New 24 GHz EME world record
• South Africa allocates two 5 MHz channels
• VO-52 satellite completes eight years in orbit
• VK hams invited to use VI 103 WIA
• Raising the public profile of Amateur Radio
• Isle of Man special callsign
• SSB using a Raspberry Pi
• HamTV from the International Space Station

Colin Butler, M6BOY, is the host of the ICQ Podcast, a weekly radio show about Amateur Radio. Contact him at [email protected].

But I’m willing to lay down a bet that they didn’t have one of THESE there! And no, it wasn’t for sale!

A large one to tack onto the shack door and a small one to slap on my tool box.

72 de Larry W2LJ
QRP – When you care to send the very least!

Larry Makoski, W2LJ, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at [email protected].