[Elecraft] XV daisy chaining with non-Elecrafts

[Bo, OZ2M]

Hi Don et al.

Protocol analyzer - no problem. Microcontroller programming no problem 
either.

Problem = time :-)

I like neat solutions. Often I cannot find them so I have to make them 
myself.

I have no plans for neither an K2 nor K3, of K4 for that matter.

73
Bo, OZ2M - Looking for DX? Try VUSHF DX-peditions www.rudius.net/dxp
----- Original Message ----- 
From: "Don Wilhelm" <w3fpr at embarqmail.com>
To: "Bo, OZ2M" <oz2m at mail.dk>
Cc: "Elecraft" <elecraft at mailman.qth.net>
Sent: Wednesday, January 13, 2010 12:06 AM
Subject: Re: [Elecraft] XV daisy chaining with non-Elecrafts


Bo,

The XV transverters can be daisy-chained for the key line and the IF
coax cables - see the diagram on page 12 of the Owner's manual.

I would think it would be easier to select the proper transverter by
merely pressing the power on/off switch of the one you want rather than
trying to reverse engineer the AuxBus code to select one transceiver -
But than I am not familiar with your skills nor your available tools to
decipher the AuxBus signaling required.

Of course, one alternative is to use an Elecraft K2 or K3 for the IF
transceiver.  Either will integrate nicely (and seamlessly) with your
set of transverters - the K2 would need the KIO2 option, and the K60XV
option makes transverter use easier.  The K3 needs only the KXV3 or
KXV3A option to run the transverters, everything else is in the basic K3/10

73,
Don W3FPR

Bo, OZ2M wrote:
> Hi
>
> Has anyone done daisy chaining of the Elecraft transverters without using 
> an
> Elecraft radio?
>
> I acknowledge that the AuxBus is used and intelligent communication is
> needed from an additional microcontroller.
>
> Initially I thought, without taking a closer look at the diagram, that it
> was possible to select the relevant transverter via the bus by supplying a
> simple voltage corresponding to the DIP setting in the transverter. But 
> from
> what I can under stand from Elecraft intelligent communication is 
> necessary.
> Also taking an even closer look I can see that the AuxBus goes to a 
> digital
> port in the XV-microcontroller.
>
> If no super mod invented already I see the following alternatives:
> 1) write own firmware for the XVs, and review two port pins
> 2) make an intelligent controller
> 3) make an IF switching and supply voltage control box
> 4) abandon the Elecraft transverters
>
> I have three transverters and was looking forward to the daisy chaining
> principle - actually this is why I embarked on the Elecraft way and 
> already
> prepared the non-Elecraft transverter for daisy chaining.
>
> 1) Can be done and with additional features missing today.
>
> 2) The intelligent controller may even be a business opportunity as a 
> stand
> alone box. Furthermore I have a station controller already in which I have
> to rewrite the firmware so adding AuxBus communication should be a
> manageable task provided I can emulate the AuxBus protocol.
>
> What to do?
>
>