23092018 – VK3/VS-004

VK3/VS-004 (Mt Langi Ghiran)

WWFF Langi Ghiran State Park (VKFF-0760).

Quick activation to pick a S2S from VK3BYD Warren who was out in the Grampians. Given the distances 80m was the band.  Mt Langi Ghiran is essentially a rocky ridge with summit at the top. It has enough room for an 80m antenna but you have to be careful weaving through the trees and watching the rocks as you climb around. Usied the 7m Tactical 7000hds compact pole for height reducing the distance across. This pole fits inside in pack leaving my hands free and allows for scrub negotiation essential for the hike in.

Once antenna up I turned on the KX and Peter VK3ZPF was on channel. Worked him then went to CW for S2S with Warren and eventually 40m to keep the regular CW chasers happy.

QRPLabs QCX 5W CW single band transceiver

QRPLabs QCX 5W CW Single band transceiver

Another Arduino basd project, well not quite. The Arduino Uno is a microcontroller board based on the ATmega328P. This kit from QRPLabs also uses the ATmega328P. The software is not open source. Updates are provided as hex files.

This kit is extremely well documented. It is worth buying and assembling just for the documentation.

The assembly instructions are very clear and contain operation theory and alignment process.

Once assembled the device would not start. According to the excellent troubleshooting doc the processor had not been reset.

I had performed the modification for reliable microcontroller startup (repurposing inductor L5) during assembly so turned to the troubleshooting manual for direction. First was to go back and  check components then touched up the soldering around the processor and crystal and she started Ok.

QCXBuild

Next was to follow the assembly manual and align / tune then update the firmware. Again wth the excellent instructions there were no issue here.

Update Firmware from Mac;

I’m going to update the firmware from Mac using avrdude.

Purchased a USBAsp AVR programmer locally. It has a 10pin connector so get a 10 to 6 to match the ISP interface on the QCX or use dupont connectors like I did.

There are instructions on the QRPLabs site for win process for using  but No I want to use my Mac. Again Google is your friend. Given allready have XCode installed, I decided to just install avrdude and use the command line.

Install avrdude on Mac OSX.

Process is straight forward.

Open a terminal session and install Homebrew;

ruby -e “$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)” < /dev/null 2> /dev/null

Then install avrdude;

brew install avrdude

So the software is installed.

First Plug in the USBASP and verify the computer can see it (About->System Report) then check avrdude can see the QCX;

Allens-Air:QRPLabs allen$ avrdude -c usbasp -p atmega328p
avrdude: warning: cannot set sck period. please check for usbasp firmware update.avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.00s
avrdude: Device signature = 0x1e950f (probably m328p)
avrdude: safemode: Fuses OK (E:FC, H:D1, L:F7)
avrdude done.  Thank you.

Noting the warning message. A quick Google revealed this is not an issue and there is a parameter you can pass to avrdude to skip skip the check so not worried, Ok then lets flash the device;

Allens-Air:QRPLabs allen$ avrdude  -c usbasp -p ATmega328P -U flash:w:T1.00f.hex
avrdude: warning: cannot set sck period. please check for usbasp firmware update.avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.00s
avrdude: Device signature = 0x1e950f (probably m328p)avrdude: NOTE: “flash” memory has been specified, an erase cycle will be performed         To disable this feature, specify the -D option.avrdude: erasing chipavrdude: warning: cannot set sck period. please check for usbasp firmware update.avrdude: reading input file “T1.00f.hex”avrdude: input file T1.00f.hex auto detected as Intel Hexavrdude: writing flash (32076 bytes):
Writing | ################################################## | 100% 21.78s
avrdude: 32076 bytes of flash writtenavrdude: verifying flash memory against T1.00f.hex:avrdude: load data flash data from input file T1.00f.hex:avrdude: input file T1.00f.hex auto detected as Intel Hexavrdude: input file T1.00f.hex contains 32076 bytesavrdude: reading on-chip flash data:
Reading | ################################################## | 100% 16.32s
avrdude: verifying …avrdude: 32076 bytes of flash verified
avrdude: safemode: Fuses OK (E:FC, H:D1, L:F7)
avrdude done.  Thank you.

thats it done  ! Now running version 1.00f. 

From here I intend to go through the troubleshooting instructions with my new oscilloscope and explore the device.

23082018 – VK3/VE-073 & VK3/VE-123

2018-08-23 – VK3/VE-073 Mt Timbertop

2018-08-24 – VK3/VE-123

I had the week off for a planned trip to Deal Island. The plan was to charter a boat for drop off and pickup spending the weekend on the island. Always weather dependent keeping an eye on forecasts for the  return trip as did want a Gilligan’s Island situation.

This was cancelled (re-scheduled) due to the rough conditions.

I had the leave booked so decided to head up to into the Alpine NP for an overnight trip anyway.

I wanted to checkout the conditions in preparation for an upcoming hike out to The Governor. I have all-ready activated most of the summits in this area and those left have serious access considerations.  This trip was to see the snow lines so given road closures and being winter did not expect to gain deep access.  Anyway headed up Thursday morning intending to pickup Mt Timbertop on the way in.

VK3/VE-073 Mt Timbertop

VE 073 2

Arrived late in the afternoon with enough time to walk up, activate and safety get back. The track is in great condition. I was expecting light snow so dressed to be wet. Key will be to be past the snow for the walk out as will be in dark.  Not a but risk just needed buffer in case of issues. Parked at the bottom and headed up. Activated in the ‘clearing’ just below the peak. Well in the AZ and room to rolled out the 80m antenna. 80m is compulsory these days to ensure local contacts. For this activation I used 80 SSB and comfortably qualified. This summit is worth the walk for the views. On sunset the red sky was reflecting off the snow and provided an eerie view.

DSCN9495

Drove in and camped at Eight Mile Flat as this site in in the Alpine National Park.

It was cold the next morning.

Progresses down Brooks Rd. There were trees and rocks on the road. The trees had been cut and I move some rocks but got to a point where a new tree brought my plans to a stop. I could see snow on the ridge lines so not too fussed. It was a beautiful clear crisp day and worth the drive out any way.

Decided not to proceed out to Eagle Peaks. I have been before so know there is a track but the last 200m is a rock scramble. Given the snow though not a risk worth taking. Access also removed Rocky Ridge  and The Bluff from my agenda. Never really though the Bluff was an option. So headed back to pickup VK3/VE-123.

VK3/VE-123 UnNamed.

DSCN9497

Parked Subie at the base of Three Chain Track. It was wet and the first section torn up so not an option. There was patches of snow in corners so must of been low heavy snow recently but the track clear, just muddy. It is an easy walk with great views.

DSCN9486

Both these sites are worth consideration as clear access even in harsh weather. Mt Timbertop also qualifies for the seasonal 3 point bonus.

W8TEE and K2ZIA Antenna Analyzer

Another Arduino based project. This time an W8TEE and K2ZIA Antenna Analyzer.

AABench

Purchased the PCB from https://qrpguys.com/w8tee-k2zia-antenna-analyzer

Not a kit so sourced the components. Easy to order from china off eBay. Took about 2 weeks for all the bits to come in.

Assembled and she started but the SWR for a 51ohm dummy load was off the scale.

The audrino and screen are ok. Checked and double checked solder joints so needed to verify the DDS and SWR bridge operations.

My old Dick Smith device is not cutting the mustard so borrowed an oscilloscope from Lacky VK3ALM. Traced the signal into the SWR bridge and nothing out. Checked the components and well my bad as the 51ohm resistors were in-fact 51K ohm. Bit of a difference. Replaced and off she went !

Downloaded the latest WA2FZW software from IOGroups – https://groups.io/g/SoftwareControlledHamRadio/files/Improved%20Analyzer%20Software

The documentation and a debugging guide are available from this group, essential information.

AAHoused

Use a case from radio parts (CB8808). Yes there is a pimple in the middle. No intention to remove as works fine.

So far have scanned all my antennas at home. I can recommend this device. Not a kit but the process to source and assemble was fun.

04082018 – VK3/VC-024

04082018 – VK3/VC-024  

Went to Mt Beckworth for the VK1 S2S Party.

Third attempt to activate Mt Beckworth this year, first failed as the KX3 battery was flat and didn’t take a spare up to the site, second was changed to Mt Bunnyioung as slept through the alarm. Made it this time

This is a good site for such activities as close and clear.

VerticalSetup

QRPGuys 20/30/40 vertical with an additional 6 ground wires making 9 in total.

It is hard to pick differences without actually running all the antenna up at the same time, but a much better response with the additional ground over the original 3 wires when deployed at Mt Bunnyioung recently.

Didn’t run the end fed out to gain 80m as comfortably qualified and the other sites ended on on these bands.

PackLoaded

This was also a run with the new ‘Compact heavy-duty 7 m mast from SOTABeams’. As you can see the mast nearly fits into my backpack.

This will be great as now will not be harassed when hiking through dense bush (still not returning to Hells Gate !) Bit heaver but figure I just need to get fitter.

Good activation with 15 S2S in the fog. Also 1mm rain but not complaining about that given the drought in NSW.

NewImage

anyway, great activation. Ready for VK JA ZL – EU S2S QSO Party Saturday 20 October 2018 – 06:30 UTC to 08:30 UTC  (Melbourne, Australia*AEDT (UTC +11) Sat, 20 Oct 2018 5:30 pm)

µBITx

DSCN9461

HF SIGNALS started shipping the μBITX boards (or micro BITX) December 2017. This is a a fully wide-band 3 to 30 MHz transceiver with upper and lower sideband and CW, power up to 10 watts and solid digital control. The circuit boards come wired and tested and with all the hardware. An interesting component of this radio is the Radino. This board has a Arduino Nano controller and a Si5351 for all local oscillators.

Radio Description – http://www.hfsignals.com/index.php/ubitx-circuit-description/

uBITX Net – great source of uBITX information.

groups.io has a group for the varies BITX projects.

Wiring Up

I chose not to use the plastic case that it came with or to print a 3D but instead purchased an universal enclosure from Amateur Radio Kits (INKITS). It took 6 weeks deliver, which was not unexpected.  These things take time and worth the wait, The case is excellent value. Metal and came with additional installation hardware including PCBs for the external connections.

uBITx wiring – http://www.hfsignals.com/index.php/ubitx-wire-up/

Case Manual – https://groups.io/g/BITX20/files/UBITX%20CASE%20MANUAL%20%20PCB%20FRONT%20PANEL.pdf

uBITX Net has a list of updates to make.

Initial build photo below. Have added additional wiring for ground issues and wired in USB interface. Will get a photo next time case off. Will be soon enough 

Wiring 003

 Digital to the Left, Analogue to the right. Pin 1 to the left

Boards 

Update – VU3SUA case documentation –  https://ubitx.net/2018/08/03/vu3sua-case-documentation/

Used the front panel board that came with the case. Proved to be convient and tidy but still not without its challenges. You will need to follow Sunil Lakhani on facebook to gain pictures of the boards, assembly tips and info for the board

Wiring 002

Encoder

The encoder is not straight through.   

1<->1,2 <-> 4,3<-> 3, 4 <-> 2

 

Encoder

CW Paddle

You need to add two resistors to support a CW paddle. Follow the directions on uBit.net.  

PaddleModFirmware Upgrade

Worked as advertised. Again checkout ubitx.net – http://ubitx.net/compare-software-options/ 

Decided to go with KD8CEC firmware – http://ubitx.net/wp-content/uploads/2018/04/ug1072_087.pdf

Get the latest from https://github.com/phdlee/ubitx

Install Arduino software, if not already installed. Install the USB drivers for the Arduino compatible board (CH340 serial interface) used by Radino for MacOS here 10.9+ or here 10.12.

Download the firmware files from GitHub, compile and upload to the Radino.

Bingo so now you have a HF  full source code for the HF transceiver on your computer. That is cool in initself. 

I ended up running version 1.08. Manual – http://ubitx.net/manual-kd8cec-firmware/

Upgrades

The board is v3. I want to address the T/R click noise and add an CW Audio Filter. Also saw pcbs for filters based on Glenn VK3IL’s blog.

Nick VK4PLN uBITX Add-On boards – https://vk4pln.blogspot.com/2018/03/vk4pln-ubitx-add-on-boards.html

Kess ND6T uBitX Add-On boards – http://www.nd6t.com/index.htm and ordering instructions in BitX20 group.

To Do

Calibration 

Calibration of these devices appears to be a black art;

Notes

 

Noise

I still have noise UBitxAudio.m4a when using the speaker. Headphones are Ok. It appears too be a Ground Loop problem.

Deployed common ground via a star config which improved the audio however still have the noise when using the speaker.  

GroundStar

Current solution is to stick to headphones and use the device.

Update 03082018

Updated the pic to show grounding. The brown wire goes to the common on front panel board. Still noisy.

There is a lot of information as to audio available uBitx.net and iGroups.

Conclusion

This is a fun radio.It’s cheap, it works and requires very little skills to  get operational.

Think will source another board. The uBitX v4 boards have no Audio IC On the board. 

Options;

 

072018 – Upcoming Activations

Upcoming Activities;

  • VK JA ZL – EU S2S QSO Party Saturday 20 October 2018 – 06:30 UTC to 08:30 UTC  
    • (Melbourne, Australia AEDT (UTC +11) Sat, 20 Oct 2018 5:30 pm)
  • KRMNPA Activation Weekend – Fri 9th – Mon 12 Nov 2018 – Tony VK3XV
  • VKFF Activation Weekend – Sat 24th – Sun 25th Nov 2018 – Paul VK5PAS

 

30112018 – Christmas Island

Overview

7 days from 30th November 2018. 

  • SOTA – VK9/CH-001 – Murray Hill
  • WWFF – VKFF-0098 Christmas Island National Park (Commonwealth)
  • IOTA – OC-002 Christmas in Christmas Island
  • DXCC – OC / VK9X
  • Grid Square OH2

 

 

 

Deal Island 2018 – Cancelled due to winds. 2019 ?

 

Basecamp

ILLW 2018 – 00.01UTC 18 August to 2400UTC 19 August 2018 (48 hours) 
leave Friday 17^th August, return Monday 20^th

  • Lat. 39°29.8’S, Long. 147°19.3’E
  • SOTA VK7/NE-059
  • IOTA – AU-0129 
  • OC-195 Deal Island in Furneaux Group
  • WWFF – VKFF-0260 Kent Group National Par