Page 3 of 4 FirstFirst 1234 LastLast
Results 21 to 30 of 31

Thread: The Day CB Died In Cincinnati

  1. #21
    Forum Addict
    Join Date
    Oct 2011
    Location
    Hillsborough, NC
    Posts
    2,873
    Quote Originally Posted by kb2vxa View Post
    First of all there's no such thing as a SUB woofer, just the same diameter as home hi-fi woofers with a very flexible surround in enclosures far too small to be meaningful. That's why they pop as above, one good transient and the cone goes flying... POS. Only one good thing about them, the ceramic magnets and pole pieces come in handy for various projects.
    They're more resilient than you may think ;) I think that one died as the result of 4kW being applied to it...

    With the cabin gain at low frequencies found in most cars, the low end extension of even little 1-cubic foot boxes is pretty impressive. But my favorites were the ones where the entire trunk was sealed off from the cabin to maximize airspace - as long as the woofer stayed together, you could get honest-to-goodness infrasound out of the thing...
    Jim
    The machine does not isolate us from the great problems of nature but plunges us more deeply into them. - Antoine de Saint-Exupéry



  2. #22
    Master Navigator koØm's Avatar
    Join Date
    Mar 2009
    Location
    Queensgate
    Posts
    2,220
    [QUOTE=KG4NEL;606941]In another life, I was involved in things like this.....

    About QRO in a Part 15 environment, an anonymous former (but then) CB'er was sitting in a line at the Fast Food Drive-thru and it was taking forever -- with full knowledge of his transmitting capabilities, the unnamed former CB'er keyed down his QRO appliance and said,
    "What in the hell is taking you so long, did you have to go out and kill the cow"?

    .
    Last edited by koØm; 11-18-2015 at 11:35 AM.


  3. #23
    Forum Addict
    Join Date
    Oct 2011
    Location
    Hillsborough, NC
    Posts
    2,873
    Jim
    The machine does not isolate us from the great problems of nature but plunges us more deeply into them. - Antoine de Saint-Exupéry



  4. #24
    Fertility Shaman N8XE's Avatar
    Join Date
    Oct 2010
    Location
    Central Ohio
    Posts
    590
    Quote Originally Posted by koØm View Post
    Alas, the world did not come to an end when all of the "8-pill" transistor operators shot-it-out. As rumor has it (I and the other holder of a Amateur Radio License didn't show up), it actually turned into a Chicken Band-mud-duck love fest / reunion.

    About QRO in a Part 15 environment, an anonymous former (but then) CB'er was sitting in a line at the Fast Food Drive-thru and it was taking forever -- with full knowledge of his transmitting capabilities, the unnamed former CB'er keyed down his QRO appliance and said,

    Immediately, the whole staff of the restaurant froze and stared at each other somewhat in fear and complete amazement; their eyes were as big as Moon Pies.

    The modulation envelope had overwhelmed the audio system and captured the electronic bus of the Point Of Sales devices and, zeroed out all registers; unbelievably, the Uber Manager was prepared for just such an event and he passed out order pads and ink pens to his staff.

    Somewhere in the middle of the DSR was a big gap that was marked, "Reboot" !

    .
    That is damn funny! In Kevin Mitnick's book, Ghost in the Wires, he was talking about a time he would overwhelm the drive through speaker and acted like he was taking there order. A few times he would tell women that pulled up that certain parts of their body were.. ahem.. undesirable. Hilarity ensues.

    Jason N8XE
    "Skeptical scrutiny is the means, in both science and religion, by which deep thoughts can be winnowed from deep nonsense." - Carl Sagan

  5. #25
    Fertility Shaman N8XE's Avatar
    Join Date
    Oct 2010
    Location
    Central Ohio
    Posts
    590
    Another funny story:

    Dad was a truck driver and his buddies were driving through someplace in PA (or MD.. can't remember which). A band was playing and I guess they overheard my some of them announce over the PA system that they leaked into what they wanted to drink. When they got there, they noticed their drinks were ready ahead of time.

    Jason N8XE
    "Skeptical scrutiny is the means, in both science and religion, by which deep thoughts can be winnowed from deep nonsense." - Carl Sagan

  6. #26
    Lord of the Flies kd6nig's Avatar
    Join Date
    Feb 2007
    Location
    Stockton, CA
    Posts
    3,820
    I had a friend back in tech school who had a "kicker" in his car along with his CB and his favorite past-time was pulling up next to people with their stereos cranked and yell something over the radio.

    Usually it was "turn that S**T down" or something like that.

    It was pretty comical to see the people in the car looking around trying to figure out where it came from.

    He was the only guy I knew that embraced both hobbies well. On CB...he was a clown. On HR...you'd never know he was on CB.

    He was truly radio bipolar.
    73 to all!
    Joshua, KD6NIG
    22 year NCT (Licenced 08 Sept 1992)
    Less than a year NCG (Upgraded July, 2014)
    22+ years licensed.

    Insert witty and creative sigfile stuff here.

  7. #27
    'Grumpy old bastid' kb2vxa's Avatar
    Join Date
    Aug 2007
    Location
    Lakewood, NJ
    Posts
    13,081
    KG4NEL:
    "They're more resilient than you may think..."
    The problem is as I said, they're TOO resilient so even if they don't pop overshoot causes distortion. If a speaker can't track the waveform it's a POS.
    "With the cabin gain at low frequencies found in most cars..."
    Cabin gain? Before we go any further I strongly urge you to learn about acoustics, wavelength, enclosure design, etc. and be more of an audiophile than an audiophool, OK?

    koØm:
    "...the unnamed former CB'er keyed down his QRO appliance and said..."
    He could have had a LOT more fun if he programs the frequencies fast food joints use for their headsets in his VHF/UHF transceiver, the ones that communicate with the drive through are particularly interesting.
    "...he passed out order pads and ink pens to his staff."
    It can't be McDouchebag's or Booger Fling, pimple puss can't add 2 and 2 and can't make change by counting up from price to cash tended. That's why they have little pictures on the register keys and a computerized order system.

    N8XE:
    "In Kevin Mitnick's book, Ghost in the Wires, he was talking about a time he would overwhelm the drive through speaker and acted like he was taking there order."
    Kevin is more of a genius than I am, I turned my electronics hobby into a career, he turned his into a very profitable systems security business. Actually he overwhelmed the drive through frequency with more power than pimple puss' headset as described above. Pranking them is, eh, fairly common and done from a discreet distance in the parking lot, 5W easily overpowers a 100mW Part 15 device.

    kd6nig:
    "He was the only guy I knew that embraced both hobbies well."
    He was until I showed up.
    "On CB...he was a clown."
    Besides an avid experimenter I was a clown, a prankster, a mystery reciting beat poetry, the most interesting man in the world, and I got laid a lot.
    "On HR...you'd never know he was on CB."
    On the air I never mentioned CB, the subject never came up. The only reason you know is because I like to talk about the great times I had, I'm the most interesting man in the world. Stay thirsty my friends, Dos Equis sucks, drink Yuengling.

    Here are a couple of classics, those free Kevin stickers showed up in the darnedest places. Make that four classics, three friends, phone phreaks (in my phreaking days I spoke toll free with Crunch and Woz) turned hackers, gone legit, John Draper aka Captain Crunch, Kevin Mitnick handle unknown, and Steve Wozniak aka Woz. Steve Jobs too was a phreaker/hacker too, see where hobbies can get you when you play your cards right?
    Attached Images Attached Images
    Last edited by kb2vxa; 09-22-2014 at 07:30 PM.
    "The universe is under no obligation to make sense to you."
    Neil deGrasse Tyson

    73 de Warren KB2VXA
    Station powered by atomic energy, operator powered by natural gas.

  8. #28
    Forum Addict
    Join Date
    Oct 2011
    Location
    Hillsborough, NC
    Posts
    2,873
    The problem is as I said, they're TOO resilient so even if they don't pop overshoot causes distortion. If a speaker can't track the waveform it's a POS.


    Very true. Although in the last ten years, there's been a lot of work done with motor designs that optimize the BL curve for a particular app.

    Cabin gain? Before we go any further I strongly urge you to learn about acoustics, wavelength, enclosure design, etc. and be more of an audiophile than an audiophool, OK?


    *shrug*

    http://www.diysubwoofers.org/projects/other/cartf/
    Jim
    The machine does not isolate us from the great problems of nature but plunges us more deeply into them. - Antoine de Saint-Exupéry



  9. #29
    Orca Whisperer n2ize's Avatar
    Join Date
    Dec 2007
    Location
    Crestwood, New York
    Posts
    33,899
    CB is very important to me. More important than HR. I am seriously considering getting back into CB in a big way. I want to run at least 5 to 10 Megawatts of power. I don;t know how many pills will be needed for that amount of power that but I do know they are gonna have to be very potent pills.
    I keep my 2 feet on the ground, and my head in the twilight zone.

  10. #30
    Master Navigator W5BRM's Avatar
    Join Date
    Jan 2007
    Location
    Somewhere in Murica!
    Posts
    1,422
    Quote Originally Posted by n2ize View Post
    I don;t know how many pills will be needed for that amount of power that but I do know they are gonna have to be very potent pills.
    Lemmons!
    .

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •