[Elecraft] For sale KRX3, BPF3 and filters

[Joe Subich, W4TV]

On 1/16/2016 6:29 PM, Erik Basilier wrote:
> In the absence of authoritative facts to the contrary, I can merely
> speculate about most of the compatibility questions. It seems clear
> to me that the roofing filters have not changed at all, and work the
> same inboth radios.

Eric and Wayne have both stated unequivocally that other than one new
bypass capacitor on the +5V regulator (to reduce noise that impacts
frequencies below 500 KHz), the current KRX3 is no different than the
one in the "original" K3.  Your KRX3/accessories will work in any
version of the K3/K3S.

The only issue would be the need to match versions of the KSYN3.  If the 
KRX3 is going into a K3S one would need a KSYN3A.  If the KRX3 is
going into a K3 with upgraded (KSYN3A) synthesizer the KRX3 will need
the upgraded (KSYN3) synthesizer.  If the KRX3 is going into an older
K3 with original (KSYN3) synthesizer the KRX3 will need a KSYN3 and not
the KSYN3A.

Bottom line ... if the target transceiver has a KSYN3A installed,
anyone purchasing your KRX3 will need to purchase a KSYN3A from
Elecraft in order to make use of it.

73,

   ... Joe, W4TV