Photographic Flashback

June 9th, 2010   by Walt 

I was just looking at the remaining picture count on the memory card currently in my digital camera and had a flashback to the days of film when we had to ration our shots more than today. Electronic storage has sure changed things! As long as you don’t fill up your memory card/stick/whatever, you can snap away at tons of things and later review your photos and delete the ones that you don’t like.

I have more or less accidentally taken some super shots this way.

Looking back at the slides I took while stationed in Germany (over a thousand!), I remember grudging many super shots not knowing if it would turn out any good and many that I thought couldn’t miss – that did…..miss, that is.

Of course, being able to punch up the color or brightness (or reduce them) is a welcome feature I have taken for granted for a long time now!

One hint: if you want to punch the color or contrast a bit, use a program that lets you use layers. Simply copy a new layer right on top of the background layer (your bottom layer). Then using the top layer, really punch things up and then play with the transparency of that layer. You can punch up contrast or color saturation and still keep things looking natural.

Be sure to not overwrite the original file!!!!!! Copy the picture you want to work with to another directory and change its name. Do your work in the native editor file format (this keeps the layers and adjustments separate and does not compress the file as JPEG(jpg) is a lossy compression where you lose a bit of your picture each time you open and then re-save it) After you get it to where you like it, then Save-As a JPEG, keeping the working copy in case you want to tweak it later.

Use a different layer for each correction/effect you want. Play with putting one adjusted layer above or under the other (remember the background layer stays on the bottom; it won’t move) as this will affect the outcome. My favorite method for not over doing things is to bring it up to the point where any more is too much, while feeling that you might be able to get away with just a little more (but resisting the urge to add any more tweaking).

The best way to learn how to do things right is to do them wrong and learn what doesn’t work! I have found some of my favorite tweaks this way, just having to tone them down a bit.

Most importantly, have fun.

New Linux Forum and Blog

May 21st, 2010   by Walt 

For those interested in Linux and Open Source, I have started a new forum and blog at http://n3mtjlinux.net/forum and http://n3mtjlinux.net/blog.

These are dedicated to Linux and Open Source software and everybody is welcome to check them out.

Been Fiddling with Blog Again

May 9th, 2010   by Walt 

It is not your imagination; the blog does look different! I switched to the Straight Blue theme, and am making modifications to personalize it.

For the next few days, please excuse the picture to the left of the Search area as I will be tweaking it to remove the white borders and jaggies. They show up nice and plain when not against the brighter background I had intended to use with another theme! The entire theme may change a little as I tweak it, too.

I guess it may or may not be easy to see that I love playing with the site as time allows. Hopefully things will settle down enough that I can do a lot more here.

Myths about Linux – and how to enjoy a real operating system that works for YOU!

January 18th, 2009   by Walt 

Or, should I say out of date misinformation? I’ve read a lot of similar sounding pieces of misinformation lately about Linux.

One piece that keeps resurfacing is that you have to use the command line to do anything at all (remember DOS?). Not true!!!!! That tidbit is really outta date. I find starting programs is much easier than in any version of Windows. You don’t have to hunt through menus to find a program you just installed, but told to not put a desktop icon up. If you install a graphics program in Linux, just open the menu, select “Graphics” and your program is right there, and not under some unheard of manufacturer’s name or something. Want it on your desktop after all? Simply grab it and drop it there!!

Linux has poor hardware support. Getting less true every day. the only piece of hardware I cannot get to work is a TWAIN scanner by Hewlett Packard. All my external drives work fine, dialup modems work if I ever want them (and these are the cheapo Winmodems), keyboards and mice work (I have to admit that some special functions that I rarely use in Windows may not be supported), my networked laser printer is supported perfectly. It is funny, Mint found it upon installation and automatically installed the correct driver!!! I went to install the CUPS driver for that printer and found it already ready for use! I guess it is proper to say hats off to Brother for being open source friendly, too!!! I can offload pictures from my Sony cameras just fine with either Ubuntu or Mint; connect the camera, power it up, it is recognized and mounted and I’m ready to copy to the computer…that simple! Your mileage may vary depending on camera maker.

Some cheap Broadcom WiFi cards have to have special drivers installed, but Mint saw my Broadcom 43xx card, and asked permission to install the driver (I used the Ethernet cable for installing it until it installed the WiFi driver), and it found my network, recognized what encryption I was running and asked for the key and I was surfing wirelessly! Mint also connects so much faster than any version of Windows to my saved WiFi profiles.

Programs are hard to install, with a lot of keyboard typing to get to work. No, no and NO!!!! Uh-uh, negatory…. All modern distros (slang for distribution) have programs that handle program installation (90% of it; you will find some applications that aren’t in the repositories (where specifically written programs are stored for each distro) that need manual installation and that is really easy even if you do have to use the command line); all you have to do is find it, download it, and use it!

Linux is for freeloaders. Really now, is that the best you can come up with?? Give it up if it is!!!!! Now, truthfully say that you never use “freeware” in Windows. I thought so… When we speak of “free” in Linux, we are thinking of “freedom“. Freedom from restrictive licensing and other restrictions.

“Open source” means that you can – legally – view the source code, and modify it if you wish, and even then (sitting down?) redistribute it! You cannot sell it or claim all credit for work done up to when you modified it.

Where is the incentive to develop open source? Well, money!!! Not by selling the software (really you never buy software, you buy a license giving you permission to use it within limited guidelines), but by support. Companies without in-house expertise can buy support, just like they do with software from companies like Microsoft; they just don’t have to pay for a license to use the software. If they add computers, servers whatever, they simply install the software and use it – with the full blessing of the developer without having to buy any more licenses.

One of the biggest challenges that may face somebody who has never used any version of Linux is the seemingly endless list of distributions. My favorites for newcomers are Mint, Ubuntu, and SimplyMEPIS. They all are easy to use and do the same thing in the end. Honestly, I suggest you pick the one you think has the prettiest website, desktop, or whatever. Don’t let the choice of desktop environments confuse you; simply choose one and if you want another install it later! The two biggest are GNOME (pronounced like Gee-nome) and KDE (stands for “K” Desktop Environment). I don’t think there is anything that you can do with one that you cannot with the other. Some programs are written to run with one desktop environment or the other, but if you use Synaptic Package Manager, it will automatically download any files you need in order for the program you want to use run in your desktop environment of choice.

If you have a rather old computer laying about, there is Puppy Linux, VectorLinux, and others that are designed for older and slower computers. You may not have the “eye candy” of the bigger distros, but do you want eye candy or a computer that will do what you want and need for it to do? Personally, I think they still have plenty of eye pizzaz!

Need help? Not only do the different distro communities have forums, but my two favorites are Newbies Linux, and USALUG (USA Linux Users Group). Please note that USALUG registration needs manual activation, so you will not be able to post right away if you have questions for them.

Here is an operating system that doesn’t have to spend a lot of time protecting itself and you as it is secure by design. Yes, as it grows in popularity, it will be targeted more, but the kernel it is built on was designed decades ago (while Microsoft’s top leadership was still in school!) with security in mind.

I have some friends that I felt that I browbeat into trying Linux just to get me to shut up dump Windows completely! If not for some special programs that requires Windows, I would be Windows-free myself.

Revisiting the IC7000 “Hidden” Menu Settings

February 1st, 2008   by Walt 

More specifically, revisiting the sensitivity settings. See the original hidden menu entry.

I believe I have found the balance in sensitivity settings for HF, VHF, and UHF.

First, HF. I turned the sensitivity up so that for most signal strengths (sorry, best description I can come up with) where I had previously turned the preamp on, I no longer turn it on. At my current setting, I have not noticed any new overload related problems, and activating the attenuator totally solves any that I experience. Actually, I used to run the preamp 99% of the time, and things now are a lot more enjoyable without having to use it nearly as often. I ran the gamut of excessivly high settings to get an idea of where it should be set in my personal opinion.

I did not feel the need to crank the HF receive gain up as much as I did for VHF and UHF.

Now, for VHF and UHF. Really a repeat of what I stated for HF with one notable exception: Intermod. Turning the receive gain up for VHF and UHF, and being able to keep the preamp off has reduced the rude squawks, bleeps, burps and so forth from local pagers and all. If I want to relive the old days, I simply turn the preamp back on for maybe 2 seconds while in an intermod active spot!!

I did take a bit more time tweaking VHF and UHF receive gains than HF. I wanted to find the balance where I felt I did not need the preamp for my normal commuting areas, but I did not want to max the gain setting for obvious reasons. Where I finally settled, I found that the preamp did wonders for weak signal reception in quiet places, but did not add any ease of listening in noisy ones. That actually was a guideline I used for setting the receive gain without the preamp on.

A lot of my travel areas have predictable noise areas where I sat while tweaking the gain in the menu. Since the menu defaults to a preset frequency, it took a bit of trial and error, but I found the magic spot where additional gain did not help me hear what I was wanting to hear any better. However, out away from noisemakers, the preamp works wonders!!!

I am not giving my settings as your settings most likely will be different. I will say that my increase for HF was way less than the increase for VHF and UHF. You can get a bit of an idea by listening to the background noise while making the changes, but you need to actually go and listen to some fairly predictable signal sources to know for sure. Remember that the goal is to simply boost the receive gain up a bit if you feel it needs it without increasing any overload related interference. Your operating locations, and antennas will also affect your final settings.

It is entirely possible that you might find a situation where you need to run the attenuator frequently, and tweaking the gains down may help.

Bottom line, if you are happy with the way your IC7000 is working, have fun and don’t worry about making any changes!

One more warning about making changes: Improper adjustments may make your radio operate in violation of FCC regulations, damage your radio, void any warranties, or mess things up so that you need a service facility to set it right again. These receive settings are the only ones that are anywhere close to safe to try. MAKE ANY CHANGES AT YOUR OWN RISK.

I still enjoy using my IC7000, and consider it the best purchase I have made for my sanity on the road. I do practice safe operating and put driving as the first priority, and using the radio as the second.