[Elecraft] Order of assembly K3 Options

[Gary Smith]

I ordered the KXV3 with the K3/100 to assemble at the time of 
purchase but it was back-ordered at the time of shipment and it 
arrived this week. I have the KRX3 on order and it will be ready for 
shipment fairly soon. I am going to order the KBPF3 general coverage 
module and the 1ppm KTCXO3-1 TCXO module to be sent asap if they are 
in stock.

I found some of the connectors resistant to insertion when putting 
the K3/100 together. For instance; the ones where you needed to use 
your thumbs under the RF board to prevent the board from twisting 
during insertion; I had to use a fair amount of force to get these 
sockets fully engaged and they usually went in with a snap. Indeed 
all the pins were full mated and all assemblies installed 100%.

Considering the deliberate latching when inserted, these connectors 
are re-assuringly secured in place but I remember thinking to myself, 
'I do not look foreward to removing them when I wish to add another 
module.' So I don't want to keep removing and replacing parts back 
there.

There is one port in the back marked "REF", which now has a plastic 
plug in place. I don't know if the connector that goes in there is 
part of the sub receiver as no such connector is with the KXV3 and I 
seem to have missed mention of it with the assembly of the K3/100 but 
it looks to be tucked in a freely in-accessible area so perhaps it is 
part of the RX sub? 

I'd like to install the KRX3 asap but will hold off if I need to 
remove the boards above the "REF" port.

So from those of you with experience in installing these modules in 
an already assembled K3/100, in which order should the following 
modules should be installed so I do not have to remove & reinstall 
these various strip connectors more often than necessary? 

Again, the modules to be installed at this point are:

KXV3 (now at the QTH & ready for installation)
KRX3 (on back-order) 
KBPF3 gen coverage (to be ordered asap)
1ppm KTCXO3-1 TCXO (to be ordered asap)

Thanks,

Gary
KA1J