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  1. HARDROCK

    Best Moblie Antenna for OTR Truck

    That is good. I have the aa-30 rig expert.
  2. HARDROCK

    Best Moblie Antenna for OTR Truck

    Ok Thanks. That is the way it should be. I gotta go to work. will get back when time permits. Tony 73
  3. HARDROCK

    Best Moblie Antenna for OTR Truck

    No it does not. Maxwell states r He states with No matching that has the highest swr at RESONANCE. The key is resonance. When i tune for lowest swr you are right the swr is 1.2 R 48 - 50 ohms. But you also have lost effieciency because its not resonant for the frequency you are...
  4. HARDROCK

    Best Moblie Antenna for OTR Truck

    Yes maxwell has excellent information. 27) With center-loaded mobile whips of equal size having no matching arrangement at the input terminals, best radiating efficiency is obtained on models having the lowest measured terminal resistance (highest resonant SWR, model for model). Models having...
  5. HARDROCK

    Best Moblie Antenna for OTR Truck

    That is much better. Tony 73
  6. HARDROCK

    Best Moblie Antenna for OTR Truck

    Really........ This is a technical forum ? Get a life !!! Tony
  7. HARDROCK

    Pop on transmit in the external speaker when keying

    No its the switching of the audio input to the ic.
  8. HARDROCK

    Pop on transmit in the external speaker when keying

    I have the mod for the nasty pop in the speaker when keying up the transmitter on the older export radios. ss 3900 and older connex radios are bad about it. Tony
  9. HARDROCK

    Best Moblie Antenna for OTR Truck

    As mentioned earlier it is g3tso... sorry. You have a misquote. No where does his site advocate an auto antenna tuner ! Auto tuners work on SWR so are not very good at matching antennas ! Base loaded screwdriver antennas are very ineffiecient ! Quite right, but those with practical...
  10. HARDROCK

    Best Moblie Antenna for OTR Truck

    http://w4zt.com/phuzzy.html http://zs6vd.bestwebs.co.za/SWR.pdf Tony 73
  11. HARDROCK

    Best Moblie Antenna for OTR Truck

    G3STO . Most amateurs have become used to tuning for a minimum indicated SWR. This is meaningless in a mobile installation. WHY? An efficient mobile whip is unlikely to be 50 ohms. An inefficient one may be! Minimum SWR is NOT an indication of maximum radiation; it simply means the tuning device...
  12. HARDROCK

    Best Moblie Antenna for OTR Truck

    g3sto homebrew mobile antennas. Google. K0bg site states the same. ..maybe you need to reread it.
  13. HARDROCK

    Best Moblie Antenna for OTR Truck

    Good looking setup on your truck. You missed the point just like i did for a long time. An effiecient mobile antenna will be between 18 and 36 ohms impedance at feedpoint. An ineffiecient mobile antenna may be 50 ohms at feedpoint. . Most amateurs have become used to tuning for a minimum...
  14. HARDROCK

    Best Moblie Antenna for OTR Truck

    You are welcome flatlander.
  15. HARDROCK

    LOOKING FOR A GOOD TRUE PEP METER?

    I have the ameritron awm -30 that http://www.w8ji.com/alc_exciter_power_overshoot.htm The above is why i purchased the awm -30
  16. HARDROCK

    Best Moblie Antenna for OTR Truck

    It is a 2.5.1 ratio of what the antenna is. Made by k4poz he has the pics on his site.http://k4poz.com/match/index.html
  17. HARDROCK

    Best Moblie Antenna for OTR Truck

    I have tried both . The back of the cabs are metal so it grounds better than the mirror arms . The most important issue is Tuning for resonance and not lowest SWR. By using a matching transformer at the antennas feedpoint. The tx and rx is much better. I have been in the cb hobby...