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.

5000A Transverter Power Output Adjustment

Options
Mick
Mick Member ✭✭
edited November 2018 in FLEX Series (Legacy) Radios
Hi to all community members.  Please can someone assist?  Reference the transverter output XVTX/COM on a 5000A, the manual states adjustment is possible form 0dBm to +5dBm.

On the XTVRs Form, Power is adjustable up to 100, but does anyone know please how this relates to the dBm output figure.

For example, at the maximum setting of 100, is that the +5dBm (3mW) setting.  Does a setting of 33 equate to 1mW (0dBm)?  Any help would be appreciated.  I've had the 5000A for two years now and just love it, though I confess that 'm still learning.

Many thanks.  73  Mick - M0GWD

Answers

  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited March 2017
    Options
    It is relative.  The transverter output is not calibrated or set to a absolute known value; it should be between 0 and +5 dBm.  So you will first need to measure the output level on the IF frequency of interest so it is a known quantity.  If the output is +5 dBm, then 50% of scale should be in the neighborhood of 2.5 dBm.  It is a mostly linear control, but not absolute.  I would not use it if you need very accurate power output levels.
  • Mick
    Mick Member ✭✭
    edited March 2017
    Options
    Hello Tim.  Thanks for the prompt reply.  All noted and understood.  I'm building a 4m Transverter kit and the kit producer needed to know the Transverter output level.  I will let him know.  Thanks again.  73  Mick M0GWD
  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited December 2016
    Options
    What IF are you planning on using?
  • Mick
    Mick Member ✭✭
    edited March 2017
    Options
    Hello Tim.  I'm using an IF of 28MHz.
    Regards
    Mick
  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited December 2016
    Options
    At that IF, I would suspect that the gain would be closer to +5 than to 0 dBm.
  • Mick
    Mick Member ✭✭
    edited June 2015
    Options
    Hello Tim.  Thanks for the extra information.
    I'll the kit maker know.
    Regards
    Mick M0GWD

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