JUMA Amateur Radio Forum

Hello,

I wonder where the circuit diagram of the main board Rev. C is?
http://www.jumaradio.com/juma-trx2/manu ... V2.6.5.pdf only contain diagram for Rev. B. As there are a few (minor?) differences between the two revisions I like to get the right one
Can anybody give a hint/link?

Thanks in advane
vy 72/3 de Frank, DG4FCO

Hi, Frank,

Attached to this post are the details of the Revision C version of the Main Board. The principle change is the incorporation of the Spur Elimination module rather than having it as a separate attachment as it is in the Revision B version. On the image, you can see this in the top left-hand corner where there are two transistors marked Q1 and Q2.

Also attached is the schematic for this board.

Hope this helps.

73, Adrian, 5B4AIY

Hi Adrian,

thanks a lot, this helps!

vy 72/3 de Frank, DG4FCO

Frank and others,

Pse check always the latest documents in the "Technical kit info" link in each Juma kit page.
It can be found in left-top corner. See eg TRX2A here http://www.jumaradio.com/juma-trx2

73 Admin