Welcome to the FlexRadio Community! Please review the new Community Rules and other important new Community information on the Message Board.
The latest SmartSDR Software:
SmartSDR v4.2.20 | SmartSDR v4.2.20 Release Notes
SmartSDR v3.10.15 | SmartSDR v3.10.15 Release Notes

The latest 4O3A Genius Product Software:
The latest 4O3A Genius Product Software and Firmware
How to Receive Technical Support::
If you are needing assistance with FlexRadio products, please refer to the product documentation or check the Help Center for known solutions. Need technical support from FlexRadio? It's as simple as creating a HelpDesk ticket.

Is there a minimum drive level for PGXL?

Options
K4QXX
K4QXX Member ✭✭
in Power Genius XL Amplifier

I have been playing around with a Hermes Lite 2 and would like to hook it up to my PGXL. I used to use a Flex-1500 with a Ten Tec Titan amp years ago and with 5 watts in, I could get 250-350 watts output according to what band I was on. I am hoping to do the same thing with the Hermes Lite.


Thanks,

Burch

K4QXX

Comments

  • K4QXX
    K4QXX Member ✭✭
    Options

    I am running the PGXL on 220 in the shack.

  • Mike-VA3MW
    Mike-VA3MW Administrator, FlexRadio Employee, Community Manager, Super Elmer, Moderator admin
    edited June 2023
    Options

    You can give it a try and see how it works.

    You will be limited to 15db of gain though thanks to FCC restrictions. So, 5 watts in should get you about 150 to 200 watts off the top of my head.

    73

  • Larry _ NY8T
    Larry _ NY8T Member ✭✭✭
    Options

    I see 275 watts with 5 watts drive.

  • Mike-VA3MW
    Mike-VA3MW Administrator, FlexRadio Employee, Community Manager, Super Elmer, Moderator admin
    Options

    @Larry _ NY8T

    That doesn’t seem correct. Is this into a dummy load?

    10db gain should be 50 watts out

    add another 6db, so that should give you 50 x 2 x 2 which is about 200 watts out.

    So, for 15db gain you should be just less than 200 watts, which the PGXL is clamped at for US Customers.

    I would be curious to know more about your test setup.

    73

  • Larry _ NY8T
    Larry _ NY8T Member ✭✭✭
    Options

    Recheck with dummy load on 10 meter band.


    5 watts.JPG


  • Mike-VA3MW
    Mike-VA3MW Administrator, FlexRadio Employee, Community Manager, Super Elmer, Moderator admin
    Options

    The 15db is calculated at the Power/SWR bridge in the PGXL. That looks about correct. :)

  • Bill WW5M
    Bill WW5M Member ✭✭
    Options

    I run 5 watts on FT8 with 6600 driving my PGXL to about 100 to 120 out . It does help

    keep 6600 running cooler especially when running 2- band FT8.


    73 de Bill WW5M

Leave a Comment

Rich Text Editor. To edit a paragraph's style, hit tab to get to the paragraph menu. From there you will be able to pick one style. Nothing defaults to paragraph. An inline formatting menu will show up when you select text. Hit tab to get into that menu. Some elements, such as rich link embeds, images, loading indicators, and error messages may get inserted into the editor. You may navigate to these using the arrow keys inside of the editor and delete them with the delete or backspace key.

Comment As ...

Categories