RF Cafe Software
About RF Cafe
1996 - 2022
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...
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Woo-hoo, I have finally achieved Ham radio license Nirvana! Reporting this on World Amateur Radio Day seems appropriate. On Saturday, April 15, 2017 (tax day in the USA), I passed my Amateur Extra exam in the presence of three VEs (Volunteer Examiners) at the Wattsburg Wireless Association (of which I am a member) meeting room in Erie, Pennsylvania. Nearly seven years have transpired since I took the Technician test in the same room on May 24, 2010. My General license test was taken at the Forsyth Amateur Radio Club (FARC) meeting room in Winston Salem, North Carolina, on January 13, 2015. Until the FCC updates my record in the online Universal Licensing System (ULS), my call sign will be KB3UON/AE. A Ham friend of mine calls licensees like me who began in the post Morse code requirement era "10-4 Good Buddy" Hams (ref CB radio operators).
Motivation for pursuing the Ham radio license goal was two-fold. First, I had intended to get a license back while I was in the USAF (1978-1982), but never got around to it; school, work, and family responsibilities got in the way (yeah, poor excuse). By the time 2010 rolled around I figured time was running out (the family gene pool does not include longevity), and besides (the second reason), it would be a good way to review a lot of the electronics theory that was first learned lo so many years ago. A lot of new information was also covered regarding FCC regulations, spectrum assignment, operational bandwidths, modulation types, equipment, and procedures. That was the part which took the most effort.
The entry level license is called "Technician," and contains a fair amount of equation working, but it is as you would expect, mostly on the Ohm's Law level. It's biggest challenge was getting over the threshold of entering an entirely new realm (amateur radio). In my opinion, the General exam was the most difficult because it required memorizing a huge number of frequencies, bandwidths, regulations, and operational stuff. Both the Technician and General exams consisted of 35 question pulled from a prepared pool of around 600. The Extra exam had 50 questions pulled from a pool of around 725. A minimum passing score of 74% applied to all three. For each test, I read the ARRL study manual from cover to cover, and then reviewed the entire Q&A section at least half a dozen times, until I was confident that I could answer every question correctly. That might be a bit extreme, but I really wanted to know the material. The effort paid off by acing the exams. It was the same strategy I used in college that resulted in achieving the highest GPA in my BSEE graduating class at University of Vermont (1989 UVM alum). Trust me, it wasn't because I'm the sharpest pencil in the drawer, just that I'm willing to put forth maximum effort to reach a meaningful goal (that, or maybe I was lucky to be in a class of not-too-bright peers).
Now comes the decision whether to keep my current randomly assigned 2x3-format call sign of KB3UON, or apply for one of the extra special (get it?) call sign formats reserved for Extra licensees. Sure, it's a vanity thing, but if it has been earned, then why not? Below is info pulled from the FCC Universal Licensing System (ULS) regarding NxM options, provided that the call sign you select is available.
"A unique call sign is assigned to each amateur station during the processing of its license. Each new sequentially assigned call sign is sequentially selected from the alphabetized regional-group list for the licensee's operator class and mailing address. The mailing address must be one where the licensee can receive mail delivery by the United States Postal Service. The station is reassigned its same call sign upon renewal or modification of its license, unless the licensee applies for a change to a new sequentially assigned or vanity call sign on FCC Form 605. Each call sign has a one letter prefix (K, N, W) or a two letter prefix (AA-AL, KA-KZ, NA-NZ, WA-WZ) and a one, two, or three letter suffix separated by a numeral (0-9) indicating the geographic region. Two letter prefixes that are designated for regions 11-13 are not available in regions 1-10. Certain combinations of letters are not used. When the call signs in any regional-group list are exhausted, the selection is made from the next lower group. The groups are:
Group A - Amateur Extra Class Primary stations licensed to Amateur Extra class operators. Region Prefix Letters in Suffix 1-10 K, N, or W, and two letter suffix; 2 two letter prefix with first letter A, N, K, or W 1 two letter prefix with first letter A 2 11 AL, KL, NL, or WL 1 12 KP, NP, or WP 1 13 AH, KH, NH, or WH 1
Note: "Call Me KB3UON/AE" is a lame allusion to Herman Melville's famous opening line in Moby-Dick, "Call me Ishmael." Apologies to great classics sensitivities.
Posted April 18, 2017
These original Kirt's Cogitations™ may be reproduced (no more than 5, please) provided proper credit is given to me, Kirt Blattenberger.
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Cog·i·ta·tion [koj-i-tey'-shun] – noun: Concerted thought or
reflection; meditation; contemplation.
Kirt [kert] – proper noun: RF Cafe webmaster.
These items are an archive of past Topical Smorgasbord items that have appeared on the RF Cafe homepage. In keeping with the "cafe" genre, these tidbits of information are truly a smorgasbord of topics. They all pertain to topics that are related to the general engineering and science theme of RF Cafe. Note: There is also a huge collection of my 'Factoids' (aka 'Kirt's Cogitations') that might interest you as well.