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25 watt ht

Discussion in 'VHF/UHF - 50Mhz and Beyond' started by KI8DJ, Jul 28, 2020.

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  1. WA9SVD

    WA9SVD Ham Member QRZ Page


    Battery capability, I could almost understand; but even 25 Watt INPUT power is ridiculous; an H-T would (literally) be FAR "too hot" to handle.
     
  2. NG0L

    NG0L Ham Member QRZ Page

    Yeah, battery capability only; nothing but. (... so running that HT off of your car's battery puts it near legal-limit :rolleyes: )

    It's been referenced here previously, but VP9KF has a very handy Power Density / Safety calculator which makes a 2m HT with even 5-watt output @ unity gain seem only marginally safe at 1-foot from your head.
     
    KB0MNM likes this.
  3. AI7PM

    AI7PM Ham Member QRZ Page

    P. T. Barnum may have addresed this at some point.
     
    NG0L likes this.
  4. WA9SVD

    WA9SVD Ham Member QRZ Page

    H-T with a rubber duck antenna, aka "dummy load" usually has less than unity gain.
     
    PU2OZT likes this.
  5. KA9JLM

    KA9JLM Ham Member QRZ Page

    Did you measure the output power while transmitting into a 50 Ohm dummy load ?

    Or are you just hoping for the best ? Thinking about it...
     
  6. PU2OZT

    PU2OZT Ham Member QRZ Page

    Gonna market that with amp + micro loop adds-on as a China Virus repellent, billionaire soon in Brazil.
     
    W6KCS likes this.
  7. KF0G

    KF0G Ham Member QRZ Page

    Rob Sherwood says no
     
  8. KA9JLM

    KA9JLM Ham Member QRZ Page

    They may put DC on the ant output to fool a meter thinking it is RF. o_O

    Using a AC coupled narrow band pass filter would show the true power on the operating frequency.

    Most hams have no way of measuring real world output.

    Antenna gain is magic also. Not many can even measure those great specs.
     
  9. W0MSN

    W0MSN Ham Member QRZ Page

    I put some faith in this review from Miklor

    https://www.miklor.com/COM/Review_NOTE.php
     
    NG0L and PU2OZT like this.
  10. KA9JLM

    KA9JLM Ham Member QRZ Page

    Note also;

    " This is a dual purpose tri-power radio that can serve as a 5W/10W handheld, or a 25W mobile all in one package.."

    So to run on high power, You need a external power supply and external antenna.

    That sounds about right. I would question the longevity when running high power.
     

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