What if, tomorrow, some great catastrophe hit? What if, the wires holding the internet together like a spider’s web were cut? What if, half the world could not communicate with the other. What if Voice communications were similarly disrupted? Hrm… So you haven’t heard of ham radio? You haven’t heard of HF skip? You haven’t heard of CW?

Please try to understand that our technology right now depends on a particular set of infrastructure (ie: wires, satellites, etc.) which increase the distance between us and the world. If the internet and telephone systems were wiped out, the only communication possible (around the world, point to point) would be HF communications.. and considering the sun spot cycle we’re in right now, CW (Morse Code).

So why have we abandoned the very basic functions necessary for global communications for more fragile means? Some people say fidelity… I don’t know… really… I don’t. Either way I don’t like it. The only way HF communications would fail would be in massive global atmospheric (ionospheric) catastrophies… ie: increased sunspot burts etc…. either way, we’d be dead.. so it wouldn’t matter if we could still talk to eachother!

The atmosphere is the backbone with HF… not a cable or satellite, which could be “disabled”.

here’s a digital signal from Halifax, Nova Scotia, Canada (I live in Philadelphia, I was using an HF rig, with a simple dipole – wire – hanging out the window more or less 12 ft long.) No satelites or special equiptment was used… just the FAX… which before used on telephone lines, it was used by radios! :)

I finally get a signal… but haven’t tuned it in yet.

Good signal! Finally! I see something!

Dead straight on (I have a hard time keeping things straight! So this is cool!!!!! ;) )!

[Update 1]

Check it, well, not exactly outer space but it’s close.

From Halifax, Nova Scotia’s (Canada) WEFAX transmitter. 6.495 MHz USB Mode

I found this program for the mac called Multimode. I hooked up my short-wave receiver to it, and was able to receive these images. Sorry for the poor picture quality, but all I have is a piece of wire hanging out my window! Cool non-the-less!!!! :) I LOVE RADIO!!!

The first image was a screw up. I was “diving in” to the software… getting pissed no less… luckily brad was here when I started receiving a signal (ie: I was not going crazy!) … made him wait before the cigi… still feel bad for that… that’s what you get for dating a geek! :-P

The second was cooler. (of course after brad left… shit works when people aren’t around to see it.) In the middle of the image, i realised that I was seeing the image off a few dozen pixels. Moved it to the left a bit. The blank spot in the lower section was a constant signal… probably a reset.

If you also notice, the image gets clearer as time progresses. The entire Image took about 1/2 hour to get. The ionosphere decided to get a little friendlier to me! :) All the random darkened horizontal lines are noise from different stuff, ie: static. I completely lost a previous image due to one of my neighbors turning out something that caused a lot of interference.

The darkened grey areas are where i turned on the greyscale smoothing on the software receiver. No good, i turned it back off. I decided to greyscale it with the GIMP.

The last (third) image is the best one so far. I am going to probably buy this program, it rocks!! But alas it’s not open source… hrm… do I see a project coming along?

WHO NEEDS THE INTERNET WHEN YOU HAVE RADIO! :-P

There’s other stuff i want to try and receive, now that I have this piece of software… Slow-scan TV, HellsFeld, PSK31 (which i’ve done on linux really well already, you can’t hardly tell it’s a signal, but comes in banging on the machine), Packet (bleh), Radio Teletype (YAY!!hehehe) and SITOR/PACTOR etc.

[Update 2]

Remember back in the day when I hooked up the radio to my comptuer, and picked up that station from Mexico… that was only text. I have never been able to get much else working on the linux box. So it wasn’t till I received an email from this mailing list i forgot I was on (in portuguese… so I couldn’t really understand it too much) that I thought… “hey I haven’t tried some software for the Mac… it’ll probably work really well.” I hooked the radio in and boom! :) The problem I’m having with the radio stuff, is that I have to get accustomed to hearing, and identifying the sounds. Different speeds, modes, conditions, and just plain bad tuning, has to get distinguished from “noise” (IE: tv’s, blow dryers, etc.), and each of the valid signals are, in and of themselves, not only distinct, but similar (sounds wierd…keep reading) For example, morse code always sounds “the same.” But different speeds, conditions etc, makes it ultimately sound different… but there’s something in there a general “feel” or “gut feeling” that makes you say: “Oh, that’s morse code.” Yesterday I had problems with the fax stuff, cause I didn’t realise that between each fax transmission, they were switching back to “Radio Teletype (AKA: RTTY)” it’s in the old movies all the time (ticker tapes, and rat-tat-tat’ing in the background – acutally 1010 WINS, and 1060 KYW has a fake background track of what the machines sound like; I guess they do it for show; it’s not used anymore obviously with the internet.) Anyways, I was trying to get a FAX when they had switched to RTTY. The point is, had I known what each mode sounded like, I would have instantly known to switch to RTTY to pick up the written stuff.

I am a HAM operator. The ARRL is the non-profit organization that supposedly acts in the interests of HAM’s in America. While they provide some interesting services for HAMs here in America, I personally, see them as a conservative status quo non-profit agency. They have a long history of attempting (and succeeding) to keep the hobby in the pre-digital age. A quick glance at many FCC hearings, and complaints from TAPR is a nice way to start investigating the ARRL’s stance in promoting the hobby. Well, enough of that, this isn’t a gripe on ARRL. This is to tell you a little about my station.

  • Transceivers
    • Alinco DJ-G5TH (2m/70cm HT; waiting to mod)
    • Alinco DR-130 (2m Mobile; waiting to mod)
    • Standard C528-A (2m/70cm HT; fullymod’ed)
    • Icom IC-T81A (6m/2m/70cm/20cm HT)
  • Receivers
  • Transmitters
    • FM Stereo Broadcast Transmitter (BA1404 Chip Based) (98.5FM)
      Home Brew
    • Ramsey Kit FM Transmitter (Model FM100B)
  • Digital Communications
    • Kantronics KPC-3 (TNC/1200)
    • Baycom BP-1 (Dumb TNC/1200)
  • Infrastructure
    • Micronta 12V Regulated Power Supply (13.8VDC/2.5 Amps)
    • SO-259 to BNC (Glass Mount -> Standard)
  • Miscellaneous Mods
  • Antennas
    • Diamond SRH815 Antenna (2m/70cm/20cm) (TNC)
    • Radio Shack 2m/70cm Glass Mount Antenna (PL-259)
    • 1/4 Wave 2m/70cm Telescoping Antenna (BNC)
    • Pryme RD-8 2m/70cm High Gain Antenna (BNC)
    • Diamond RH3 (2m/70cm)
    • 1/4 Wave Dipole (3m)

Some time ago I did a survey of HAM operators to try and get a handle on the types of users for a Sociology paper we presented at the Eastern Sociological Society. Here are the results.

First you can download the HTML version, the postscipt version of the pdf version. For most people the HTML version would be sufficient.

Raw Results Summary

Approximately 70% of respondents were active within the previous 48 hours. Activities included receiving or receiving and transmitting in various modes.

Like the internet having multiple protocols each designed for specific purposes, such as web, or email, HAM operators have at their disposal various operating modes ranging from voice, typewritten digital information, television and Morse code. This chart summarizes the percent of respondents using each of various modes.

This chart summarizes the relative interest ratings of respondents for different activities. The most popular activities included such items as “learning about cutting-edge technology”, “rag chewing” (i.e., talking at length with friends on the air), experimentation with antennas, and voice communication on the high frequency bands and participation in organized events.

Selected opinions about the relationship of the respondent to Amateur Radio were collected using five point Likert scales coded from “strongly disagree” to “strongly agree” with statements. This table summarizes some of these findings. Below is a key to the Likert items presented in the table.

Key to Items:

FACINATE Ever since I was a kid, wireless communication has fascinated me.
MOREINT I am more interested today in Amateur radio than when I was first licensed.
FIVEYEARS Five years from now I picture myself being an active, on-the-air amateur.
COMPMORE Computers and the internet are more interesting to me than amateur radio.
BORING Too many on-the-air conversations are boring.
HAMBORING Amateur radio is boring.

Effects of Gender:
Gender was strongly associated with differences in levels of interest with different aspects of the hobby as expressed in the Likert scales presented in the previous table. Here is the same information broken out separately for males and females.

Gender and Activities:
Technical versus people oriented activities. Further analysis of gender differences revealed that females were more interested in ‘people oriented’ activities than ‘technically oriented activities’ as compared with the males. For example, females were most interested in ragchewing (on the air conversations), talking to friends and club activities; while these were also popular among the males, they were far more likely than the females to be interested in experimenting with antennas, tinkering with equipment and working with experimental modes.

Cohort Effects:

Clear differences in activities, interests and opinions were observed in analyzing the cohort of the respondent. Defining cohort in terms of the year in which the individual was licensed, older cohorts showed, for example, a much stronger affinity for c.w., (Morse code) than younger cohorts.

Specific effects of cohort on the Likert opinion questions are summarized in this chart. Note the relative stability of opinions across the cohorts.

This chart shows a marked decline in the use of c.w. (Morse code) across the cohorts: hams licensed before 1968 were roughly three times as likely as recently licensed hams to use the code.

This chart shows a consistent decline with level of agreement with the Likert item “Ever since I was a kid, wireless communication has fascinated me” across the cohorts: the younger the cohort, the less the strength of agreement with the statement. On the other hand, the absolute scale value of this decline is small, representing a shift from ‘strongly agreeing’ to ‘agreeing’.

Which is more interesting-ham radio, the internet, or are they both equally interesting to you? This chart summarizes the responses across cohorts. The bottom line: very few hams find the internet more interesting than amateur radio, while there is a slight tendency for recent cohorts to rate them both of ‘equal’ interest.

So I am in the process of converting my older website into something more modern. This. In the end, a lot of stuff on the older website has become in the last 10 – 15 years irrelevant. I will keep it around for old memories and posterity. To that end, here is a site that you can peruse for anything interesting if you will. I mainly keep *this* one around for icomlib, and some other musings of the day.

The Old Philtered.Net Site

The first of which is the PCR-1000 Control Suite. Based upon a newly written C++ API, the control suite consists of both a set of command line utilities and a GUI written using the QT 2.02 Widget Set.

The code is available here via http download. It’s always changing. You can also take a look at the GUI via this screenshot. Also check out the SGI set of widgets, they are really cool looking and my personal favorite style.

[Edit: Repost from locally mirrored http://www.polywog.org/www-philtered/icomlib.phtml Updated IcomLIB (qPCR1k) is being maintained by a few people at Debian, and Ubuntu. I have placed the original here, and the diff file.
icomlib_1.0.1.orig.tar.gz and the diff file icomlib_1.0.1-8.diff.gz to be applied so that it works with modernized compiler, library. I guess I should release a new version with these diffs. The person who's been maintaining it for all these years is A. Maitland Bottoms at Debian.]

Documentation

  • HTML‘ized API Documentation.
  • Low Level Commandset (directly from Icom, thanks to our European collaborator Coyote)
  • Method of Thought: Some essays regarding the creation and reverse engineering of the api (before the above command set was obtained a year later.)

Downloads

  • icomlib-1.0.1 Many bugfixes and additional support for the BSD operating system.
    • OpenBSD has some issues with Qt Widgets. This is not an issue with our program, rather with the Qt Widget Set for BSD. Stay tuned with Troll Tech for future bug fixes.
  • icomlib-1.0.0 Initial Stable Release
  • icomlib-1.0b4 Beta #4
    • fixed the bug with core dumps when pressed + or – during scanning by disabling all of the non-usable buttons during scanning.
    • Added Star Office, and MS Word 95 format for the white papers. Along with a readme for the additional descriptions.
  • icomlib-1.0b3 Beta #3 with some minor bug fixes and added eye candy:
    • Fixed the intuitiveness of scanning. Now when you want to scan, depress the button, and it blinks with the available commands. Then after selecting the commands, the button blinks that it’s scanning. Also, when you are scanning, and you hit a frequency that is active, or a birdie, you can press one of the function keys to continue scanning. Depressing the scan button at anytime, stops scanning.
    • Fixed a few QLayout bugs, where it’s parent already existed.
    • Added some border spacing around the Profile Edit dialog box.
  • icomlib-1.0b2 Beta #2 with some significant bug-fixes:
    • doesn’t core dump on start up if you have an older RC file,
    • Fixed a refresh problem with the profile dialog box
    • Added the ability (at compile time) to select several different GUI Styles (ie: CDE, WIN95, SGI, MOTIF, QT…)
  • Documentation for libpcomm/libpcp. Note: This is the API documentation for version 1.0 of the library.
  • icomlib-1.0b1 This is beta #1 of the software. NOTE: This program may crash/core dump and possibly delete every file on your system. Wait until friday for the regular release version
  • icomlib-0.9.1.tar.gz
    • Updated the configure script to officially support SunOS.
  • icomlib-0.9.0.tar.gz
    • initial release

Platforms Compatibility

Note: If you are not running Linux please see platforms compatibility.

Notes

Keep in mind that code development, from the acquisition of the PCR-1000 itself to release, has been a little less than 2 months. Please tell us what you want to see in the next release, which will be coming hopefully in two weeks. High on the priority list is DTMF decoding and scanner functionality for the GUI. Additionally, the user will see support for multiple PCR-1000′s enhanced, plus memory channel features in the GUI. Eventually we hope to have the bandscope supported in the GUI, and possibly a ncurses-based console app.

Additionally, if you do not like the fact that the code is written using the QT widget set, get bent. If you want to write something using the GTK or Motif or whatever, feel free. The API hooks are in src/pcp/pcp.h. bin/console/pcr and bin/console/scanner provide some basic examples of how the API works. We haven’t had a chance to write a document to fully detail how to code using the API yet, but hopefully we will write something of that sorts eventually.

The Developers (aka: 0xc0d3 Monkeys)

Polywog
Javaman

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