Category: radio

Slicing and Dicing Spectrum

radio : by Tommy — August 14th 2004, 03:47AM
radioI found this link from Slashdot, it's an article on how the electromagnetic spectrum is sliced and divided up among controlling parties. It mentions the FCC's latest partitioning of certain frequencies to Nextel. Also mentioned is the 802.11 "open frequencies", and others.
The article gives a bit of insight as to how the current frequency partitioning mindset came to be, and offers alternatives.

A good read for the curious.

...and another take on Spectrum rights and permissions.

ARRL Field Day

radio : by Tommy — June 26th 2004, 03:09AM
radioToday is the first ARRL Field Day exercise that I get to will participate in. Slashdot has a post about this too.
Field Day is a chance for ham radio operators to check their ability to contact other stations without making use of commercial power (power company's power). Instead, ham groups band together, use generators and power their radios that way.
Also included in Field Day is a competition between all ham groups. Each group tries to contact as many other ham radio operators as possible, gaining points for the distance, frequency and power level used. Each group logs their contacts and, in the end, sends their log to the ARRL for ranking.

I volunteered to supply the Nacogdoches Amateur Radio Club with 4 laptops from my office at SFA to use as "logging stations" with some software the group purchased for this purpose.

"Field Day" continues all day Saturday until Sunday evening, depending on when each group begins making contacts. Check with your local group to find their location and check out their stuff. 73!

update: Field Day was awesome. Got to operate on almost all the General-class HF bands. I reached stations all over the US. (I even made contacts as far away as Hawaii and the US Virgin Islands, in the middle of the day!)
The laptop setup was cool, had some problems, but it worked well overall. 3 logging stations with a 4th setup to monitor a map of the US which shows each region where a contact was made. We ran that to a TV so we had a quick, at-a-glance look at where we were making our contacts. The antenna array setup was also cool. Anytime you need a potato gun to hoist an antenna into a tree, is a good day.

Ham, anyone?

radio : by Tommy — April 6th 2004, 02:02PM
radioI went to Fry's on Friday afternoon with my girlfriend, I picked up a copy of Gordon West's book for studying for the Technician License for Amateur (Ham) Radio from the FCC.

Those of you wondering what Ham Radio is or looking for more information should consult Google. In short, it is "short wave radio communications" or just a more powerful form of CB radio.
The 2m band (144-148MHz) looks to be the first range that I will delve into. I urge you to check out Ham radio, especially the Technician license. 2-meter handhelds can be found on ebay for under $50.

update: I picked up my radio today (April 11). It's a Yaesu FT-10R, 5W output. I bought it from a guy on ebay that lives about 15min from my parent's house. He also threw in a free external antenna. The radio is also modified to reach up to ~175MHz. I test next week. So far, so well.

update #2:...just installed my DTMF keypad for the radio. Makes frequency navigation much easier. I'm quite pleased, and the install was super-simple. Took me maybe 3 minutes to install. Awesome little radio.