Search:

Type: Posts; User: brandon lind

Page 1 of 13 1 2 3 4

Search: Search took 0.01 seconds; generated 22 minute(s) ago.

  1. You should consider the Lundahl LL1571...

    You should consider the Lundahl LL1571 transformer in the series-series configuration as the turns ratio of 1:1.75 is closest to the ideal turns ratio of 1:1.83 for achieving a 600 to 2kohm match....
  2. Its just a coil of wire inside with a 2000ohm...

    Its just a coil of wire inside with a 2000ohm impedance. Since most radios have microphone input impedances of 600ohm, you will want to find an audio transformer to go between the two. Thats a nice...
  3. Replies
    8
    Views
    246

    Personally, I use a 220Ah Caterpillar battery...

    Personally, I use a 220Ah Caterpillar battery with a Beleeb CL-C40 battery charger (not a smart charger). The charger makes absolutely no noise on any of my radios and the battery can take anything I...
  4. Replies
    8
    Views
    246

    Most (not all) PC supplies are a bit noisy and...

    Most (not all) PC supplies are a bit noisy and the 12v they output drops a little when keyed down on a ham radio, making them a bit low on the voltage side of things for most finals. I've killed...
  5. Replies
    8
    Views
    1,082

    Commercial broadcasting refers to a one-way...

    Commercial broadcasting refers to a one-way communication to a broad spectrum audience with no expectation to receive a response. Commercial broadcaster stations use translators (aka broadcast relay...
  6. Replies
    3
    Views
    204

    4/6/1914, definitely went back some years!

    4/6/1914, definitely went back some years!
  7. Replies
    5
    Views
    5,856

    Full wave antennas are tricky things to feed (at...

    Full wave antennas are tricky things to feed (at least from the center or either end) due to the extremely high impedance at those points. That ground plane he made was almost a perfect half-wave in...
  8. It would be interesting to see an RjX plot of...

    It would be interesting to see an RjX plot of that antenna with an OSL calibration at the far end of the coax.
  9. Replies
    5
    Views
    5,856

    I like that antenna. But now I want to get...

    I like that antenna. But now I want to get technical for a moment...



    Once those radials are bent downward such that they are not perpendicular to the vertical element, IMHO, it is no longer a...
  10. Thread: Repeater

    by brandon lind
    Replies
    15
    Views
    564

    Handheld Radios So, what you are saying, R2D2, is that if you set...

    So, what you are saying, R2D2, is that if you set up a "closed" repeater with an input frequency of, say, 146.240MHz, as a licensed ham in your area I would then be barred from transmitting on...
  11. Replies
    14
    Views
    759

    Unfortunately, with an unpredictable sun and...

    Unfortunately, with an unpredictable sun and satellites, the FCC doesn't care much about the HF bands any more as military and law enforcement are now using digital UHF. It is really sad that us hams...
  12. Replies
    3
    Views
    314

    I agree with R2D2 on this one. Kenwood will put...

    I agree with R2D2 on this one. Kenwood will put both Icom and Yaesu to shame. No sense limiting yourself to those two options. My first 2m radio was a repurposed commercial Kenwood TK-705D for VHF 2m...
  13. Replies
    18
    Views
    1,035

    See, when a person grows up in a family running...

    See, when a person grows up in a family running HF radios that require little power to do big distances, it is easy to be biased. Truth is, if one is up for a TRUE challenge, shooting major skip from...
  14. Replies
    14
    Views
    759

    you dont have one of those fancy "smart" battery...

    you dont have one of those fancy "smart" battery chargers from walmart in your garage, do you? Those Everready ones are especially bad. Mine sounded just like that.

    EDIT I misread that, you DO...
  15. Replies
    7
    Views
    356

    But if you find a really cool website you want to...

    But if you find a really cool website you want to make available offline, HTTrack is EXCELLENT once you learn the intricacies of the settings and adding the extensions you want copied (like pdf's,...
  16. Replies
    7
    Views
    356

    I was going to upload and link to my 3.1GB...

    I was going to upload and link to my 3.1GB collection of radio books and pdf's, but then I saw the ridiculous amounts people are ordered to pay for copyright infringement. Once upon a time, Google...
  17. Thread: Pre-Noob

    by brandon lind
    Replies
    60
    Views
    2,215

    Agreed, better get back to ham radio now. If you...

    Agreed, better get back to ham radio now. If you get worked up about legal tender, feel free to shoot me a private message. I'll likely be too busy tomorrow morning having my "fair compensation"...
  18. Thread: Pre-Noob

    by brandon lind
    Replies
    60
    Views
    2,215

    You, sir, sound like a true problem solver! I...

    You, sir, sound like a true problem solver!

    I like that idea! On the flip side, Progressive will insure anyone driving anything because they have good enough attorneys that can stop any claim in...
  19. Thread: Pre-Noob

    by brandon lind
    Replies
    60
    Views
    2,215

    sounds about right

    sounds about right
  20. Thread: Pre-Noob

    by brandon lind
    Replies
    60
    Views
    2,215

    But you said the key thing there... its not a...

    But you said the key thing there... its not a "red alert yet"

    Thats how it happens, the erosion of freedoms. You don't take it all at once, you take it little by little. If you draw a line in the...
  21. Thread: Pre-Noob

    by brandon lind
    Replies
    60
    Views
    2,215

    I forgot about FOPA! And you are likely right...

    I forgot about FOPA! And you are likely right about it not being "soon", but I wouldn't be surprised if it happened in my lifetime. I'm not overly concerned though, organic chemistry has been a good...
  22. Thread: Pre-Noob

    by brandon lind
    Replies
    60
    Views
    2,215

    I really dont know much about lathes so I am...

    I really dont know much about lathes so I am unsure what name to be looking for. An old friend had a Heid in his shop, but that was a monster and I don't need anything even close to that. I would be...
  23. Thread: Pre-Noob

    by brandon lind
    Replies
    60
    Views
    2,215

    Thats neat! Nice work on that vape, definitely...

    Thats neat! Nice work on that vape, definitely the coolest one ive ever seen!

    I will hopefully be getting a lathe soon. I want to start making decent GP antennas and need a way to do radial...
  24. Thread: Pre-Noob

    by brandon lind
    Replies
    60
    Views
    2,215

    Guns will be illegal in the USA very soon. ...

    Guns will be illegal in the USA very soon.

    Once upon a time, firearms were legal here. Then, the term Right (with respect to the Bill of Rights) began to be confused with the word Privilege, and,...
  25. Admittedly, i made two critical errors in my...

    Admittedly, i made two critical errors in my first response. The first error was suggesting a single resistor for the entire array. Diodes in parallel to other diodes have the strange ability to...
Results 1 to 25 of 317
Page 1 of 13 1 2 3 4