[600MRG] New K3 firmware with 10 and 18 MHz XVTR IF selections
Eric NO3M
no3m at no3m.net
Mon Jan 27 02:13:44 CST 2014
Holding "RX ANT" in dual RX got the antenna selections split; wasn't
aware that Diversity and dual RX had independent Main or Aux settings
(or that diversity even had selectable antenna routing???).
I guess the only remaining question is which filters are being used in
the sub-RX in transverter mode.
Tests so far seem good. After adjusting C183/179 on the main RF board,
plenty of gain even with the beverage arrays and BOGs.
73 Eric NO3M / WG2XJM
On 01/26/2014 10:03 PM, Eric NO3M wrote:
> There seem to be some peculiarities with using a transverter IF vs.
> CONFIG:KXV3=TEST.
>
> One thing I've noticed is that when operating dual RX (not diversity),
> the main and sub-RX both use the antenna attached to the XVTR IN port
> when setup as a transverter band. In CONFIG:KXV3=TEST mode, running
> dual RX routes XVTR IN to the main receiver, and the RX2 port (I have
> it setup as AUX BNC) to the sub-RX. Not sure if this is intended
> behavior or not?
>
> In diversity mode, either as a transverter band or CONFIG:KXV3=TEST,
> the antenna routing is consistent with what would be expected, XVTR IN
> going to the main RX and AUX RF (ie. BNC) going to sub-RX.
>
> In CONFIG:KXV3=TEST mode, the KBPF3 is used on either receiver if it
> is installed and enabled and the IF is outside of the ham-band BPF
> preset edges. However, in transverter mode, the KBPF3 is not used in
> the main RX, but appears to be engaged with the sub-RX? If in
> transverter mode and running dual RX or diversity, is it possible to
> force the use of the IF band BPF instead of the KBPF3 in the sub-RX,
> so as to be consistent with the way the main RX filtering is handled?
>
> In general, things are working in transverter mode (10 MHz IF), just
> some things per aboev that I wasn't expecting from having used
> CONFIG:KXV3=TEST over the last year or so.
>
> 73 Eric NO3M / WG2XJM
>
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