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VE9QRP: April 2010
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Projects in ham radio, programming, robotics and any combination thereof. Monday, April 19, 2010. The performance of my 435 MHz AA2RX lindenblad has not been quite as good as the simple vertical that it replaced, leading me to take the assembly down and debug it. I dont have an antenna analyzer, so I relied on a good ole 70cm SWR and power meter with a two-carbon-resistor 5w dummy load. Links to this post. Friday, April 16, 2010. Satpack hardware part 2. Links to this post. Subscribe to: Posts (Atom).
ve9qrp.blogspot.com
VE9QRP: March 2010
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Projects in ham radio, programming, robotics and any combination thereof. Sunday, March 14, 2010. Satpack PCB version 1.0. PCBs for the satpack project arrived from BatchPCB.com. About three weeks ago. These are designed to mate with the appropriate pins on a Arduino Mini Pro. But it ought not to be used, due to the errors described below. Links to this post. Subscribe to: Posts (Atom). Fund the Next AMSAT Birds. QrpTracker - Plan13 for the Arduino. IRotorDDE - Easycomm Digital Pot Rotor Control. RAC Bul...
ve9qrp.blogspot.com
VE9QRP: December 2010
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Projects in ham radio, programming, robotics and any combination thereof. Friday, December 10, 2010. More on the TH-D72 USB Port. The TH-D72 USB port is configured as a CDC device, using the CP2102 USB UART. Bridge. On Windows, presumably you should use the drivers provided by Kenwood. I accessed the port on my Ubunutu 10.04 desktop just by using /dev/tty.USB0, which popped open when I connected the device. CP2102 support evidently is built into recent kernels. Links to this post. In addition, if we want...
ve9qrp.blogspot.com
VE9QRP: January 2011
http://ve9qrp.blogspot.com/2011_01_01_archive.html
Projects in ham radio, programming, robotics and any combination thereof. Friday, January 21, 2011. Here's the video of the ZL3IN c2qso.sh contact. Remember, this is just raw UDP packets over the internet, with no error correction, and you're hearing the Codec2 audio just as it was transmitted in the conversation. Links to this post. Monday, January 17, 2011. Codec2 QSO With ZL3IN. His side of the conversation encoded in Codec2 is available here. You can get my side here. Details and a video will follow.
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VE9QRP: February 2012
http://ve9qrp.blogspot.com/2012_02_01_archive.html
Projects in ham radio, programming, robotics and any combination thereof. Saturday, February 25, 2012. NJQRP Chat with the Designers. Sessions with N2APB and N2CX are an absolute goldmine of information about HF design for the amateur. There's a good mix of analog and DSP. My only gripe is that there doesn't appear to be a podcast feed, so I had to set up a 'virtual' feed in Doggcatcher so that it would queue these. Links to this post. Subscribe to: Posts (Atom). Fund the Next AMSAT Birds. Can't believe ...
ve9qrp.blogspot.com
VE9QRP: January 2010
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Projects in ham radio, programming, robotics and any combination thereof. Thursday, January 28, 2010. QrpTracker 'satpack' First QSO. Periodic uplink tuning of the FT-817, with switching VFOs. This is in the manner of instantune, HRD and SatPC32. CTCSS tone encoding to ensure access to SO-50 and similarly equipped radios. CTCSS was only completed this weekend, so I'm delighted that the whole package is in place. Links to this post. Satpack' Arduino tracker PCB. Links to this post. Radio Amateurs of Canada.
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VE9QRP: February 2010
http://ve9qrp.blogspot.com/2010_02_01_archive.html
Projects in ham radio, programming, robotics and any combination thereof. Friday, February 12, 2010. KML to Lat/Long Array in Ruby. Several of the next applications of the qrpTracker codebase will require me to draw rudimentary maps on an LCD screen. Links to this post. Wednesday, February 10, 2010. Building the AA2TX Parasitic (Or 'Passive') Lindenblad for 70cm. The AA2TX parasitic lindenblad, which was published in Feb 2010 QST (and has been available online. Links to this post. Friday, February 5, 2010.
ve9qrp.blogspot.com
VE9QRP: Codec2 QSO With ZL3IN
http://ve9qrp.blogspot.com/2011/01/codec2-qso-with-zl3in.html
Projects in ham radio, programming, robotics and any combination thereof. Monday, January 17, 2011. Codec2 QSO With ZL3IN. Over the weekend I had a half-hour conversation with Paul, ZL3IN, using Codec2. Paul corrected an error in the script I've published, and we were thus able to hear each other. His side of the conversation encoded in Codec2 is available here. You can get my side here. I've also mixed the two into a wav file. Details and a video will follow. Subscribe to: Post Comments (Atom). I didn&#...
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VE9QRP: Codec2 Call Testing Service
http://ve9qrp.blogspot.com/2011/01/codec2-call-testing-service.html
Projects in ham radio, programming, robotics and any combination thereof. Monday, January 17, 2011. Codec2 Call Testing Service. If I haven't been using Skype for a while, I check that everything is working properly using their 'Call Testing Service'. This service tells you to record a message, then plays it back. Thinking that this would be great for testing a codec2-over-udp setup, I’ve been playing with a similar service, using this script:. Subscribe to: Post Comments (Atom). Fund the Next AMSAT Birds.
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VE9QRP: Reaction to Codec2 Video
http://ve9qrp.blogspot.com/2011/02/reaction-to-codec2-video.html
Projects in ham radio, programming, robotics and any combination thereof. Wednesday, February 2, 2011. Reaction to Codec2 Video. The QSO with Paul, ZL3IN, has garnered quite a bit of attention, with very positive reviews of the state of Codec2 and the spirit of David's project in general. Amateur Radio Newsline gave Paul and me some of their airtime. Austrian Amateur Radio League) reported on us, as did Southgate ARC's excellent site. Report #4 of 2011 of the BB-Amateurfunkmagazins. I didn’t have a...
