Welcome to the FlexRadio Community! Please review the new Community Rules and other important new Community information on the Message Board.
Need the latest SmartSDR or 4O3A Genius Product Software?
SmartSDR v4.1.3 | SmartSDR v4.1.3 Release Notes
SmartSDR v3.10.15 | SmartSDR v3.10.15 Release Notes
The latest 4O3A Genius Product Software and Firmware
If you are having a problem, 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.

630 meters with a Flex 6400 and njdtechnologies amp?

Gary L. Robinson
Gary L. Robinson Member ✭✭
edited December 2017 in FLEX-6000 Signature Series
Any reason this amp might not work with a Flex 6400 via transverter port ?    

https://wg2xka.files.wordpress.com/2013/01/njdtechnologies-630m-amp.pdf


Answers

  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited November 2017
    For your question, there isn't a lot of detailed specs, but I assume that the exciter input frequency is in the 630m band.  It should work.

    If using the XVTR port as the low drive output, there is no output filtering on that port.  So to keep spurious emissions within spec, you should use a bandpass filter designed for the center frequency of the TX output to ensure the exciter is provided spectrally clean RF to the amp.
  • Mike W9OJ
    Mike W9OJ Member ✭✭
    edited December 2017
    Here's what he says on his webpage: http://njdtechnologies.net/630-meter-class-de-amplifier/


    630-meter non-linear amplifier
    NOTE:  I can no longer produce these amplifiers for sale due to the “15 dB rule” under Part-97 now that the Report and Order has been issued for 630-meters.  Parts are available from Mouser and my notes are included below.  If you are not a builder, don’t worry as someone will take advantage of the opportunity to design an amp that meets the 15 dB requirement in the very near future.

    We'll need a lot more than 15db of help for the transverter output to get a decent signal.

    73 de Mike W9OJ

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