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Search results

  1. 338_MtRushmore

    Effects of amplifier voltage fluctuations?

    I figured out that half my problem is rf screwing up my meters. I hooked a pretty expensive meter to the alternator and propped it up on the wiper blade. It would idle at 14.5 or so, and read 19 or 20 volts under load. Only dropped a quarter volt or so into a dummy load. I still haven't...
  2. 338_MtRushmore

    Getting the ticket

    I guess I never paid any attention to the formatting. Did you find that a specific format increased or decreased your odds of selecting the correct answer?
  3. 338_MtRushmore

    Beyond confused

    With my icom the swr measured at the amp output is 1.1:1. I change nothing but the radio and the swr is now 2:1. Again, nothing makes sense
  4. 338_MtRushmore

    Getting the ticket

    What is the actual difference?
  5. 338_MtRushmore

    Rarest cb / export you’ve owned

    I had a 955hp that worked flawlessly for over a year. It's ability to make it a whole year without breaking easily makes it the rarest export I've ever owned.
  6. 338_MtRushmore

    11 meter is very quiet?

    Wide open in South Dakota right now. It's been a week or more since I've seen any signals stronger than an S3 until this evening.
  7. 338_MtRushmore

    Getting the ticket

    When you find yourself passing the practice tests, go ahead and look at the general. The general is not much harder than the tech. Hamstudy.org is your friend.
  8. 338_MtRushmore

    Effects of amplifier voltage fluctuations?

    I'm not sure that is fair or relevant, but you are correct. There are also voltage regulators that could charge those batteries at 16 or 20 volts if a dragster wanted to waste the HP on it.
  9. 338_MtRushmore

    Beyond confused

    Wait a second, those are electrical lengths and the physical lengths are much shorter. Right? Unless you have some awesome coax with a vf of 1. Or am I screwed up once again?
  10. 338_MtRushmore

    Beyond confused

    I could care less what my swr is in the short runs of coax in the mobile. The amps... that's a different story. The feedline losses are nothing at 1.6:1 compared to the db's lost when the amp blows up. Low swr for the right reasons lol
  11. 338_MtRushmore

    Beyond confused

    Even if I pulled the headliner to access the mount, would I just solder a resistor between the ring terminals? I don't think I can add a resistor at the antenna mount because there is essentially 2" of antenna in the mount itself. This just doesn't seem very feasible. If I recall correctly my...
  12. 338_MtRushmore

    Cobra 18 WX ST II (don’t laugh)

    This really is true. Adding power takes you from screaming like a banshee trying to get a return to concentrating like mad trying to copy weak stations. I've had a lot 4x1 and 5x1 contacts lately, but then again, I probably wouldn't have a copy without a modern ham rig. I usually just tell...
  13. 338_MtRushmore

    11 meter is very quiet?

    I thought I broke my icom, but the rf gain and squelch on the same knobs got me. I felt pretty stupid the 3rd time I couldn't figure out why there was no rx.
  14. 338_MtRushmore

    Beyond confused

    After a double check of settings and recalibration, it didn't really change much. Before (yesterday) After (today)
  15. 338_MtRushmore

    Beyond confused

    I did figure out how to do the HW calibration, but I must have flashed new firmware at some point. I'm going to go back through the entire setup and calibration again.
  16. 338_MtRushmore

    Beyond confused

    I don't know. This one always says that when x is zero, or at least when it is between -0.2 and 0.2. Basically anytime it reads x=>5k it also reads Ls out of range. I also don't know what "HW cal" is either. Measurements don't mean squat if they are inaccurate or interpreted incorrectly.
  17. 338_MtRushmore

    Beyond confused

    I removed the line isolator and added a barrel connector and it looks like my swr curve moved up about 200Khz Out in the open my swr with the isolator is 1:1 on 27.500 and 1.1:1 on 27.385. In my driveway I am 1:1 on 27.185 and 1.1:1 on 27.385. Seems like a pretty happy medium for now.
  18. 338_MtRushmore

    Beyond confused

    Well I did say I know less than nothing. I actually used a full wave because I didn't want to to hack up my coax for a failed experiment.
  19. 338_MtRushmore

    Beyond confused

    I've been messing with the antenna system on my pickup for a while now. It's been pretty frustrating because it seems like none of my results align with anything I thought I knew. The vna would say one thing, and the meter would say another. I chased my tail for a while adding chokes and a...
  20. 338_MtRushmore

    Question

    What size is your power wire to the radio?