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Recent content by llilillill

  1. llilillill

    scope question

    I’ve got a Tektronix SC-501 in the “didn’t-know-what-I-needed-and-paid-too-much-for-it” pile.
  2. llilillill

    Anytone AT-6666 High SWR

    I am still learning about antennas. I got myself a RigExpert AA-54 and have been using it to learn how various antennas perform. It makes it pretty easy to see how changing length, grounds, coax, etc. affect the different parameters. My next project is to find a puck mount and try my hand at...
  3. llilillill

    Anytone AT-6666 High SWR

    I may put a lip mount on it but a hole through the roof is a definite no. I did that on a Ford Escort that had a flimsy roof like this Corolla. Eventually, the antenna flexing the roof in the wind caused the roof to crack all the way across. I put the radio in my truck and it doesn't perform...
  4. llilillill

    Anytone AT-6666 High SWR

    I was always under the impression that mag mounts were capacitively coupled to the metal underneath?
  5. llilillill

    Anytone AT-6666 High SWR

    No, but M0GVZ nailed it. It was corrupted memory. On the subject of common mode currents, I have this radio installed in my car with a mag mount Wilson in the center of the roof (Toyota Corolla). Are mag mounts prone to common mode?
  6. llilillill

    Anytone AT-6666 High SWR

    That is exactly what happened. Channel 19 was set to 28.280. To reset it, all I had to do was push the 'freq' button, dial it back to 27.185 and then push the 'freq' button again to display 19. When I pushed freq again after flipping through channels, it stayed. To me, that's kind of a stupid...
  7. llilillill

    Anytone AT-6666 High SWR

    When it rains, it pours. Now I'm having a strange problem with my Anytone AT-6666... high SWR and poor receive, but only on channel 19. All other frequencies and USB/LSB work just fine. Sometimes the SWR protect comes on. Any ideas what could cause this? Software glitch?
  8. llilillill

    Need advice repairing Ranger 2970N4 amp

    It's running on a Wilson 2000 and LMR240 Ultraflex. The SWR is 1.0 I really never ran the radio much more than 50% power. I'd tend to agree with Tallman, that it was a spike from the starter. I had an injector o-ring that was causing the motor to hydro lock occasionally. When it did, the...
  9. llilillill

    Need advice repairing Ranger 2970N4 amp

    Show me what you're thinking. I was thinking about using a DPDT momentary rocker switch to operate the latching relay. Then running a wire from the crank circuit on the ignition switch to the OFF side of the momentary switch. This way, trying to start the truck, or pressing off on the switch...
  10. llilillill

    Why we won't just "upgrade" *your* Siltronix VFO

    Klean Strip Prep & Etch... basically a gallon of phosphoric acid for $15 at Home Depot or Lowes. http://www.homedepot.com/p/Klean-Strip-1-gal-Phosphoric-Prep-and-Etch-GKPA30220/100406369
  11. llilillill

    Need advice repairing Ranger 2970N4 amp

    Just had another thought... I could wire the ignition switch to toggle the relay off if the radio is on already. This would prevent brain farts if I shut the truck off momentarily at a guard shack and then start it back up while the radio is on.
  12. llilillill

    Need advice repairing Ranger 2970N4 amp

    And I think this just decided the question of what type of relay to use on the power feed to the radio. I was going to use a continuous duty dual battery relay like Ford used on some Econolines, and just wire it to the ignition switch. But after your post, I think I'll use a latching relay and...
  13. llilillill

    Need advice repairing Ranger 2970N4 amp

    T It appears that's the way Ranger does things. The power comes in at the amp pc board with no switch. Power at the finals whenever the radio is plugged in. The radio itself gets power from the amp's circuit board.
  14. llilillill

    Need advice repairing Ranger 2970N4 amp

    Something caused the transistors to heat up enough while the radio was off that it caused the fan to turn on. When I saw the over voltage on the inverter, I put two and two together and concluded the battery charger was the most likely suspect. I will check them after they are pulled out, if...
  15. llilillill

    Need advice repairing Ranger 2970N4 amp

    The radio still transmits and sounds alright when listening on another radio. It just doesn't have the power output it used to. I ordered up a matched set of HG's from RF Parts. As soon as I get a minute, I'm going to put them in and see what it does.