A walk in the field
Joe playing baseball
The Twins were playing the Alley Cats
HDR 2 on Linux
Here is a slightly different version of same image....
This was created with Qtpfsqui
There is a little bit of a learning curve with this tool. I like that it allows you to work with RAW image natively vs. converting it to a format like TIFF or JPG. The particular filter that I used needed to be tweaked a bit as it was too wild for me.
I am still not completely happy. I need some more time to bond with the tool.
This was created with Qtpfsqui
There is a little bit of a learning curve with this tool. I like that it allows you to work with RAW image natively vs. converting it to a format like TIFF or JPG. The particular filter that I used needed to be tweaked a bit as it was too wild for me.
I am still not completely happy. I need some more time to bond with the tool.
HDR on Linux
I am playing with some HDR (High Dynamic Range) images on my Linux workstation.
This is not too exciting so far but it is my first attempt. Ultimately I used two exposures for this to get try to capture the highlights and the contrast in a single image.
I shot this in the field as 5 different images that are bracketed since I have not played with these HDR software packages. This initial image was made with "fotoxx". I converted the raw images into Tiffs and then merged the tiffs.
When time permits I would like to try this same photo with a couple of different software packages so that I can compare the results. Clearly the HDR approach helps take a noon image and make into something this is bit more appealing.
This image was captured in the area between Iron River, Wi and Port Wing, Wi.
This is not too exciting so far but it is my first attempt. Ultimately I used two exposures for this to get try to capture the highlights and the contrast in a single image.
I shot this in the field as 5 different images that are bracketed since I have not played with these HDR software packages. This initial image was made with "fotoxx". I converted the raw images into Tiffs and then merged the tiffs.
When time permits I would like to try this same photo with a couple of different software packages so that I can compare the results. Clearly the HDR approach helps take a noon image and make into something this is bit more appealing.
This image was captured in the area between Iron River, Wi and Port Wing, Wi.
Linux : Sync/Backup USB Drives
Here is an update to a previous post:
I use a 1tb USB drive for storing all of my images, application installs, virtual machines, source code for development projects, schematics, etc. I try to back it up on a regular basis (approx once per month) to a couple of other USB drives that are normally offline in storage. (Yeah I know... I need to rotate the drives through the safety deposit box at bank for an offsite copy...it is on the home DR list of things to-do.)
Here is the commands to make this process work with Ubuntu 10.4.
Example:
rsync -vrlptg --delete '/media/SOURCEUSB/' '/media/TARGETUSB/'
Real World:
rsync -vrlptg --delete '/media/Iomega 1TB HDD/' '/media/Iomega 500mb HDD/'
Command to compare hard drives:
df -h
Previous post on this topic:
/blog/2010/04/25/linux-syncbackup-usb-drives/
I use a 1tb USB drive for storing all of my images, application installs, virtual machines, source code for development projects, schematics, etc. I try to back it up on a regular basis (approx once per month) to a couple of other USB drives that are normally offline in storage. (Yeah I know... I need to rotate the drives through the safety deposit box at bank for an offsite copy...it is on the home DR list of things to-do.)
Here is the commands to make this process work with Ubuntu 10.4.
Example:
rsync -vrlptg --delete '/media/SOURCEUSB/' '/media/TARGETUSB/'
Real World:
rsync -vrlptg --delete '/media/Iomega 1TB HDD/' '/media/Iomega 500mb HDD/'
Command to compare hard drives:
df -h
Previous post on this topic:
/blog/2010/04/25/linux-syncbackup-usb-drives/
6m again on Friday
6m was open again tonight.
62 Q's in 65 minutes with 47 grids.
The band was still open with lots of Q's available but I needed a break and I was getting pinged by my son to watch a movie.
73 de NG0R
62 Q's in 65 minutes with 47 grids.
The band was still open with lots of Q's available but I needed a break and I was getting pinged by my son to watch a movie.
73 de NG0R
6m opening
Tonight after the severe weather cleared I reconnected the coax and rotators cables and had a pleasant discovery. 6m was open looking to the SE. In about 25 minutes I managed to work 43 stations while running. I have decided that my grid is "rare enough" that I can run vs. operating search & pounce.
Initially I was working folks in 2, 3, and 4 land and then the propagation shifted and I worked some 8's and then someone in Idaho off the back of the beam.
Spring E's on 6m is a fun time to play with the radios.
73 de NG0R
Initially I was working folks in 2, 3, and 4 land and then the propagation shifted and I worked some 8's and then someone in Idaho off the back of the beam.
Spring E's on 6m is a fun time to play with the radios.
73 de NG0R
Updated Ports for Shack
I recently rebuilt the shack PC. In the process I moved to a new version of Ubuntu. I am now running 10.4 32bit on this machine. During the rebuild I noticed that some of my Serial and USB port numbers changed.
Linux Native
/dev/ttyS0 = PSK Warbler
/dev/ttyS1 = former port for Rigblaster Pro
/dev/ttyS2 = former port for IC-756 CIV
/dev/ttyS3 = Elecraft K2
/dev/ttyUSB0 = Rigblaster Pro (IC-756)
/dev/ttyUSB1 = IC-756
/dev/ttyUSB2 = K1EL Keyer
I like to keep the notes on my blog for ease in referencing them in the future. :-)
73 de NG0R
Linux Native
/dev/ttyS0 = PSK Warbler
/dev/ttyS1 = former port for Rigblaster Pro
/dev/ttyS2 = former port for IC-756 CIV
/dev/ttyS3 = Elecraft K2
/dev/ttyUSB0 = Rigblaster Pro (IC-756)
/dev/ttyUSB1 = IC-756
/dev/ttyUSB2 = K1EL Keyer
I like to keep the notes on my blog for ease in referencing them in the future. :-)
73 de NG0R
QRSS programming
I finally got back around to writing some code tonight.
I had been trying to determine how I wanted to parse out the text from the call sign message. The call sign messages might be different lengths so I was working through some different logic options.
Right now my development tool is showing that I have about 730 lines of code... probably 75 lines are really line spaces that don't really count.
Currently I can handle sending CW for 51 different characters in the message. That is what really increased the amount of code in this project. (It is simple code... but still has a cost tied to it.)
Right now demo board and code is just echoing out the beacon message on the LCD display and flipping some pins that are not tied to anything right now. I probably need to think about moving the PIC 16F628 to a breadboard or printed circuit board soon to start testing the integration with rest of the project or at least a mock up of the project.
I need to write a little bit more code once I decide on a few more user interaction details. (Aka: letting the user choose between CW and DFCW as an example)
I had hoped to integrate a frequency counter in this project that might push me to a chip with more memory than the 16F628. I will need to look back through my code looking for places to reduce size.
Overall this is a pretty cool project. It is giving me a chance to do some RF design and embedded development design work. It is kind of fun to sling some code in the compiler once in a while.
73 de NG0R
I had been trying to determine how I wanted to parse out the text from the call sign message. The call sign messages might be different lengths so I was working through some different logic options.
Right now my development tool is showing that I have about 730 lines of code... probably 75 lines are really line spaces that don't really count.
Currently I can handle sending CW for 51 different characters in the message. That is what really increased the amount of code in this project. (It is simple code... but still has a cost tied to it.)
Right now demo board and code is just echoing out the beacon message on the LCD display and flipping some pins that are not tied to anything right now. I probably need to think about moving the PIC 16F628 to a breadboard or printed circuit board soon to start testing the integration with rest of the project or at least a mock up of the project.
I need to write a little bit more code once I decide on a few more user interaction details. (Aka: letting the user choose between CW and DFCW as an example)
I had hoped to integrate a frequency counter in this project that might push me to a chip with more memory than the 16F628. I will need to look back through my code looking for places to reduce size.
Overall this is a pretty cool project. It is giving me a chance to do some RF design and embedded development design work. It is kind of fun to sling some code in the compiler once in a while.
73 de NG0R
6m is open again tonight
Another evening with lots of activity on 50mhz.
I think that I put another 18 Q's into the log tonight.
I am going to try to pull the plug and work on some PIC programming for a while tonight. It is hard to stay away from the radio when I hear a good opening.
I enjoy a good 6m opening much more than playing HF any day.
73 de NG0R
I think that I put another 18 Q's into the log tonight.
I am going to try to pull the plug and work on some PIC programming for a while tonight. It is hard to stay away from the radio when I hear a good opening.
I enjoy a good 6m opening much more than playing HF any day.
73 de NG0R