It is an insult to all those who design hardware to include me in that group if even said in jest with the inclusion of one each smiley face.

I see what you are saying now.  That can be accomplished by swapping the VHF/UHF module positions, adding the matching circuit needed and another SMA.

That and a few frowny faces.

I’ll bring it up in tonight’s meeting.

Thanks and 73,

Jim

WA4CWI

Oh totally understand and agree about only 2 Ax5043. I was just thinking this would be an opportunity also to test hardware and software for using both RF pins on the chip, but you are the hardware designer, not me. 😀

On Fri, Jan 20, 2023 at 3:54 AM Jim McCullers via pacsat-dev <[email protected]> wrote:

Burns,

My thinking is this is a generalized starter board for all groups, simple but inclusive.

We have a long way to go to have the actual RF requirements for the receivers and transmitter and can do a lot with this configuration.

In addition I don’t believe we have pin availability on the LaunchPad for chip select and interrupt lines for three additional AX5043s.

We may be forced into more of a prototype flight board to test the full RF stack.  That’s another topic for discussion.

As a note to all, component values given in the schematic are preliminary and essentially placeholders to get the basic schematic and board layout completed.

73

Jim McCullers

WA4CWI

If fligHt version has multi receivers anD one tx we reall y wants to be ab.le to be flexible with which device does what.  Which means using one of the rf pins for tx and one for rx  and matched to appropriate band.  And we want to be test that setup on the current launchpad card tHa Jim is making. My thought from a distance!

light Software

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73,

Burns Fisher, WB1FJ

AMSAT(R) Engineering -- Flight Software