[Elecraft] K3 with SDR-IQ and external antenna for SDR-IQ?

[Don Wilhelm]

Bob,

To receive VLF you will need a VLF converter.  The IF connection on the 
K3 is only an output, so the converter will connect to one of the 
antenna inputs to the K3.  If it is to be receive only, you could 
connect to the RX antenna input or to the ANT1 or ANT2 connections of 
the KAT3, or to the RX port of the KXV3.

If the external device is to transmit as well as receive, you can 
connect it to one of the KAT3 antenna jacks, or if it is capable of 1 mW 
IF transmit levels, connect it to the same IF connectors as used for the 
VHF/UHF transverters.

73,
Don W3FPR

On 12/16/2012 6:31 PM, KD7YZ Bob wrote:
> Howdy K3' people:
>
> Here's another one I am trying to solve. What if I want to receive down
> at 17.2KHz  sometimes ... or certainly below 4 or 500KHz, the base of
> the K3? Well,, that connection to the IF, was handy and safe, but now I
> need external antenna.
>
> Also, it is safest of when the SDR-IQ is not to the IF  that we switch
> the SDR-IQ input to maybe a 50 ohm dummy during xmit cycle of K3.
>
> Anyone have this worked out? What equipment re you using and what
> connection from K3 does the switching.
>
> I have sequencer's for my 6m EME pre-amp ... just wondering what anyone
> else does with the K3?
>
> Actually, I need to know this anyway since the EME stuff was
> driven/switched by my former rig, the FT-950 and I haven't figured out
> how to switch the sequencer on K3 xmit anyway.
>
>
>
>
>