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The Polar Explorer – A High-Efficiency Transmitter

Discussion in 'General Announcements' started by K1KP, Apr 17, 2019.

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  1. K1KP

    K1KP Ham Member QRZ Page

    Thanks for your interest in The Polar Explorer! Although I am diligently continuing development on the Polar Explorer, it is not yet ready for beta testing or release for sale. My main interest in this project is to bring this new technology to the Ham market. However, I want to make sure the technology is received well and not tainted by shortcomings in my particular implementation. Therefore I'm continuing to work to give it the best possible reception by Ham users.



    Thanks for your patience – watch this space for future news updates on the Polar Explorer!



    73,



    -Tony, K1KP
     
    K8VHL likes this.
  2. KB1FRW

    KB1FRW Ham Member QRZ Page

    Any idea what the release date will be?
    I signed up for beta testing.
    Bob KB1FRW
     
  3. K8VHL

    K8VHL Moderator Emeritus Platinum Subscriber QRZ Page

    @K1KP Inquiring minds want to know.
     
    K0UO likes this.
  4. K1KP

    K1KP Ham Member QRZ Page

    It's hard to believe its been over a year since our trip to Dayton. In that time I have continued to study this new technology as my full time vocation, filling up another 250 pages of lab notebooks. Although I have closed the list of beta testers (I have more than I can support), I do have your information on file Bob and will be in touch when it's time to start beta.

    Thanks for your continued interest,

    -Tony, K1KP
     
    K0UO likes this.
  5. K8VHL

    K8VHL Moderator Emeritus Platinum Subscriber QRZ Page

    He asked, "Any idea what the release date will be?"
    Seems like a valid question under the circumstances.
     
    K0UO likes this.
  6. K1KP

    K1KP Ham Member QRZ Page

    Update!

    I’m pleased to announce that Polar Explorer technology has been integrated into the latest FlexRadio product, the Aurora series radios. This is the result of a 6-year collaboration with FlexRadio to develop the product, and explains why the Polar Explorer website (polex-tech.com) has not been updated since 2019. Development of the Polar Explorer as a standalone transmitter was discontinued when work on Aurora began.

    I invite you to visit the FlexRadio website for all the details at https://www.flexradio.com/aurora

    Tony, K1KP
     
    K0UO and N9DG like this.
  7. AB6RF

    AB6RF XML Subscriber QRZ Page

    I knew it! As soon as I saw the specs/features of the Flex Aurora, I said to myself, "This is the Polar Explorer!"
    Great to see the technology becoming a commercial product.

    Congratulations to you Tony, and everyone else who worked on the Polar Explorer!

    AB6RF
     
    K0UO likes this.
  8. AK5B

    AK5B XML Subscriber QRZ Page


    Transceiver=transmits and receives RF

    MM3VEE - Cat.png

    Top-shelf transceiver (with optional hamcat) ^




    Tansceiver=one who receives sun tans:

    Diaz-Parks-JP-4.jpg Mother-daughter tansceivers collecting solar rays on California beach ^
     
  9. K1OIK

    K1OIK XML Subscriber - BANNED QRZ Page

    Remember this:
    Demonstration of the Polar Explorer 500 watt transmitter
     
    K1KP likes this.
  10. WA1YHO

    WA1YHO XML Subscriber QRZ Page

    Congratulations Tony!
     
  11. WB8VLC

    WB8VLC Ham Member QRZ Page

    Updating old house wiring for a 500 watt amp, what does this mean?

    I have my own version of K4XU's original 575 watt Microsemi VRF2933 P-P VDMOS amp built around 1995 that has been running off of regular 120V service for 30 years.

    This amp was similar to the the later KPA500 amp design and never in the past 30 years have I had to update my house wiring for this amp and I doubt that the KPA500 would have any issues running off of any 120 volt service.

    I'm have been using this amp at 4 different QTH's from the boonies of Prescott, Arizona, Olathe Ks., Phoeniz Az and Salem, Or., all on standard 120 volt service with no mods required to any of my house wiring.

    In his original Microsemi dev amp, as I remember Dick, KX4U, was measuring around 68 % efficiency after the LPF and T/R switch.

    Oh yeah after looking at the Flex price and the added value and my ROI which is minimal if any, I still prefer the TANSCEIVERS anyday.
     
    Last edited: May 23, 2025
    N3RYB likes this.

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