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Type: Posts; User: brandon lind

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  1. Replies
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    Even using lora, you are not getting 500 miles...

    Even using lora, you are not getting 500 miles out of a 10w VHF transmitter reliably. For VHF to work that far (without legal limit power and a prohibitively expensive antenna array and feed line)...
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    Base Radios it is unlikely you would hear the signal trying...

    it is unlikely you would hear the signal trying to drive the final. I have had a few instances where I know for sure it didnt make it out of the radio..

    Just start out seeing if the diode...
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    Base Radios Not sure what you mean. Are you trying to drive...

    Not sure what you mean. Are you trying to drive the final inside the ft900 with an external source? If everything else on the radio still works, just no PO, I would start by testing the voltages...
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    Base Radios Does the TX/RX relay click when you hit PTT? Have...

    Does the TX/RX relay click when you hit PTT? Have you tested the finals?
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    590

    I think you are right, it would make sense that...

    I think you are right, it would make sense that it would still function as a balun. I never thought of it that way.
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    The bazooka balun theory... If the sleeve is...

    The bazooka balun theory... If the sleeve is connected to the shield at the end of the coax, it is acting like one side of a dipole that simply has its coax ran through the sleeve to keep it out of...
  7. Don't spend it all on a rig and antenna alone....

    Don't spend it all on a rig and antenna alone. Had I bought an antenna impedance analyzer right away, the time I would have saved....

    Power supply, coax, tuner, swr/power meter with dummy load,...
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    It is illegal to use voice encryption (at least...

    It is illegal to use voice encryption (at least in the ham bands). The APX P25 Motorola radios police use are capable of encryption but they run $1k to $5k each. What radio service do you intend to...
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    My UV-5R V2+ consumes about 90mA during scan...

    My UV-5R V2+ consumes about 90mA during scan according to my bench supply. My battery is rated at 1800mAh, which means the radio should be able to run for about 1800mAh/90mA=20 hours. That number...
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    What he is referencing is a dipole that uses a...

    What he is referencing is a dipole that uses a hollow sleeve as one half of the driven element that has been modified in a collinear manner using phasing elements allowing the high impedance at the...
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    No problem! Just remember, the VFO changes the RX...

    No problem! Just remember, the VFO changes the RX and TX, whereas RIT only changes RX.

    Let us know how it works!
    73!
    KE0KOY, Brandon
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    RIT stands for receive independent transmit. It...

    RIT stands for receive independent transmit. It allows you to change the receive frequency while keeping the transmit frequency unchanged. It is useful for when someone keys up off frequency so you...
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    The RIT function isn't on when you tune in to the...

    The RIT function isn't on when you tune in to the net is it?
  14. Portable Radios Im guessing here based on reasons I wouldn't...

    Im guessing here based on reasons I wouldn't design an antenna like those flexible ones (I had one)...


    Guess 1) Durability... The material used reminds me of those "unbreakable" glasses frames,...
  15. I dont think either of those options alone will...

    I dont think either of those options alone will work.

    The shunt diode will clip the audio peaks to the forward bias drop of the diode (.7v) and make the audio sound all square wave like and...
  16. MURS is in part 95 and part 95 states it must be...

    MURS is in part 95 and part 95 states it must be a part 95 radio. All this was found under the link I provided in post 3.

    95.2763 MURS channels.
    Five VHF channels are allotted for shared use...
  17. Could be a bad rectifier in the alternator......

    Could be a bad rectifier in the alternator... There are 6 rectification diodes in an alternator to turn 3 phase ac into dc.

    edit: unhook the alternator and see if the issue clears up
  18. Those are fun, every walmart in the country uses...

    Those are fun, every walmart in the country uses 154.600 or 154.570. When you say hello to them, they get mad like they own the frequency. Iu would think with how big walmart is, they would just get...
  19. and if you get a GMRS license, it will cover your...

    and if you get a GMRS license, it will cover your whole family. But, that still doesn't let you use the part 90 baofeng for a part 95 service. A ham license lets you (and only you) use the ham bands...
  20. It comes down to (at least in the USA) FCC "type...

    It comes down to (at least in the USA) FCC "type acceptance". There are several parts of the Title 47 relating to various radio services, here is a good place to look....
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    If its not a RF heating issue, its likely the...

    If its not a RF heating issue, its likely the meter itself. The detector diodes are non-linear devices and might show inaccurate readings at the lower power levels. Trust the higher power reading and...
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    What chamelion antenna are you using?

    What chamelion antenna are you using?
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    The coating doesn't have much to do with surface...

    The coating doesn't have much to do with surface resistance. I agree with K7KBN there. What adding a coating does is change the velocity factor of the conductor (but not enough to be concerned with...
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    You could always set up a laptop with the other...

    You could always set up a laptop with the other one for field day.......
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    Is it a minor zap that you can sometimes hear but...

    Is it a minor zap that you can sometimes hear but is too small to make your muscles contract, or does it make your arm twitch?

    Static electricity IS one possibility, especially during dry weather....
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