Showing posts with label LDG Z11. Show all posts
Showing posts with label LDG Z11. Show all posts

Sunday, February 17, 2013

Dragon 10m HF portable is finished

A final bit of motivation and I finished my 10M portable radio. Here we are on Sunday finalising the wiring:
















It has a Dragon SS-485H HF rig along with a Z11 ATU and runs a 7Ah SLA, All housed in a bench instrument enclosure from Jaycar. Some space constraints within the enclosure so the ATU is on the outside. I have a section to attach some counterpoise wires but haven't made any up yet.
















And out in the back garden running a 2.4 metre ex-mil HF whip - ANT-129 22-30Mhz....





















A local operator Darren - VK4HDO, came back to my call on 28.480 reporting my audio as good but the signal was low and according to his radio I was about 3Khz off frequency.

.....and with a more managable HF antenna






















.....and on the radio bench running into the external 10M vertical


I'm hoping to get it ready for the WIA National field day on the 13th and 14th of April and see how it goes communicating from a hilltop.

Tuesday, January 15, 2013

Annoying antennas and other updates

I had some problems last night with the antenna giving me a high SWR intermittently. It didn't seem to matter what I did or what rig I was using I was getting a reasonable SWR reading and then a high one. The antenna tuner was struggling bringing it into something usable and it switched back and forth for a while until I came to the conclusion that my 25 year old 11m vertical is due for retirement.....so I bought a new one. I gave Peter a call at Shockwave Antennas - http://shockwaveantennas.com/ - and after a quick chat settled on just replacing the Station Master with like for like. Some advice on tuning the antenna length for 10m and that was it. I'm looking forward to retiring the current vertical and putting up the new one, I also have a new connector coming and will dump about 5 inches of the RG213 in case I have some water in the coax. Hopefully the intermittent problems will disappear after that although...it is behaving itself really well at the moment. Doh!!!

Other items of note are that the LDG Z11 auto antenna tuner has arrived, gave it a quick test and it worked well. A bit noisy when cycling it's relays during a tune but nothing to worry about. It's about an inch smaller width-wise than the Dragon SS485H I'm looking to pair it with but no problems on depth. Should work well portable.

I also have another 3 antennas on the way: 1 Military HF antenna ~2.7 metres in length, a 10m dipole, and a super flexy antenna for my VX-7 handheld. Gear Acquisition Syndrome (GAS) has bitten hard. I also have an old Kenwood 2 metre VHF rig on the way which I'll pop into the car to replace the scanner I have now returned to the shack.

The Standard licence study material has arrived from the Radio and Electronics School (RES) - http://res.net.au/ - so it's time to knuckle down with the books and get to work on the passing the theory and reg exams.

And the last thing I have done is to install the HRD suite of Ham software. I'm not fussed on the remote control stuff but the HRD Logbook app certainly looks complete.

Friday, January 11, 2013

Another portable component

I'm still gathering the bits for my new 10m portable rig. Latest addition is the LDG Z11 Auto tuner. Should be here shortly.



Other items on the list:
  • Stick with the 3x12V 7.5AH SLAs I already have? How many to use vs. weight?
  • Transceiver - Have 10M rig
  • Auto Tuner - On the way - needed to allow for different types of antenna
  • Antenna - ex-military whip on the way from Greece, need mounts for new antenna
  • Counterpoise?
  • Enclosure - this is the problem, stick with what I have or go with a new enclosure like EC1CW?
  • Wiring - looking to expand my first effort and some extra features especially on the charging and fuse side.