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Recent content by MadisonMod

  1. MadisonMod

    Wanted

    Hello. I'm looking for a PAL 350 MDX amplifier.
  2. MadisonMod

    Antenna Tuning

    Thank you all for your input and thoughts on antenna tuning. I have added a tuning box to my mobile setup and now have a good match
  3. MadisonMod

    Antenna Tuning

    Thank you for your thoughts. I will research and investigate. I appreciate it
  4. MadisonMod

    Antenna Tuning

    It's still 1.5
  5. MadisonMod

    Antenna Tuning

    I had it on a 3/8 stud. With 18ft of 217 coax. Swr was 1.2 and a 1/4 watt reflect at 1.5k . It Was easily toonable for any Chanel. I decided to upgrade. It's now on a high power puck mounted on a 4 " bracket with new 217 coax , but it's not happy. Swr now 1.5 I'm trying to get lower match back
  6. MadisonMod

    Antenna Tuning

    Predator 30k short shaft. With 18ft of 217 coax on a high power puck mounted on a 4" bracket
  7. MadisonMod

    Antenna Tuning

    It was working great with 1.5k . I decided to upgrade. I mounted it on a high power puck on a 4" mount. With new 217 coax . Now the swr is 1.5 I did adjust the stinger in and out with mfj-259d attached. Swr only got worse and ohms changed drastically. For some reason it's seeing...
  8. MadisonMod

    Antenna Tuning

    Yes. Makes sense. I'm try to change the Impedance to make the swr lower . So witch would you suggest. Inductor air coil on the positive lead of coax and cap or chock off the back through the ground ? Here's a picture.
  9. MadisonMod

    Antenna Tuning

    Yes. When I used the stud mount previously I had 1.2 and 1/4 watt reflect. I have an mfj-259d antennaanalyzer. I installed new 4" bracket with high power puck and new 217 coax 18ft . Now swr is 1.5 I tried a shunt but it raised swr to 1.8 , maybe it's too long ? Not sure .
  10. MadisonMod

    Antenna Tuning

    Yes. That is the one. I used it on a 3/8inch stud mount on a 2 " bracket. My swr was 1.2 and 1/4 watt reflect I switched to a 4" mount with a high power puck. Now swr is 1.5 I ran new ground straps and new 217 coax . For some reason it's not happy. I tried changing the angle up and down...
  11. MadisonMod

    Antenna Tuning

    Predator 30k
  12. MadisonMod

    Antenna Tuning

    Hello. I have a question about tuning an antenna. Is it better to use an air variable capacitor or a roller inductor "18f" with a choke to change impedanc, to Obtain a lower match ? Please share experience and suggestions. Thanks
  13. MadisonMod

    Receive loss

    The radio does receive properly without the amp. I will see about ordering a new relay for the amp. Thanks much
  14. MadisonMod

    Receive loss

    Hello. Can someone explain why my receive goes quiet after transmitting on my radio? If I click the microphone button on and off, then the receive comes back. I have an amplifier in line, maybe something is going out on the amp ?