[Elecraft] K3 'KIOB upgraded' + P3 + SPE 1.3K-FA amp CAT chain not working

[Graziano Roccon (IW2NOY)]

Ciao Philippe,

the CAT speed in the P3 must be 9600, Expert can't go faster, so, CAT 
settings are Kenwood-9600.
On teh P3 use the rs232 port DB9, for PC and SPE.
Here is a link to a page on my site where a working connection is 
explained.
Explanation is in italian, but schemas are available also in english.

http://www.iw2noy.it/index.php?id=87

Here is the link for the schema with elnlgish description:

https://drive.google.com/open?id=1aIHjl5KYsh6rPvRfjyUM2SAjrtoFDtn9

I have K3s (so KIO3B installaed), P3 and Expert 1KFA.
Everything is working, with connection at 38400 between K3s and P3, and 
connection at 9600 between PC-P3-EXPERT.

Let me know if you question, i am available also in PVT.

Best 73's de IW2NOY



Il 2019-02-25 12:31 Philippe ha scritto:
> Hello,
> 
> I have read previous posts from this reflector and instructions from
> different sources without being able to have my K3 connected to SPE
> amplifier with CAT.
> 
> I have upgraded my K3 (S.N.#4004) with the new KIO3B so I connected my
> computer (running Windows 10) with the USB cable and the P3 with the
> CBLP3Y as presented on page 18 of the K3S Owner Manual. Everything is
> working fine for months.
> 
> I recently got an Expert SPE 1.3K-FA I am trying to connect to that CAT
> chain. I read on this reflector I needed to connect a RS232 Y cable
> plugged to the CBLP3Y, the PC DB-9 port on the P3 and the CAT port on
> the SPE. This made the connection between the K3 and the P3 not
> functionning, missing the green and red bars from the 2 K3 receivers on
> the P3.
> 
> Then I made another RS323 Y cable, using only TXD to RXD on the SPE
> side. It was better but the USB port on the PC USB link stopped
> functioning.
> 
> On the K3, RS232 is configured as 'USB' and on the P3 the baud rate is
> '38500'. I used on the SPE both 'Elecraft' and 'Kenwood' CAT settings
> without any success but if I only connect the K3 and the SPE using the
> CBLP3Y cable + DB adaptor on the SPE, it works.
> 
> So does someone have experience with this configuration and can let me
> know how it should be connected to have it working?
> 
> Thank you
> 
> 73,