(updated 10-02-20)
When you want to
control a Elecraft K3 with the RRC-1258MkII via their remote control protocol, you connect
a standard RS-232 cable between the PC and the COM 2 connector on the back
of the Control-RRC. From the Radio-RRC:s COM2 connector to the radios
KIO3 Modules RS-232 connector you use standard straight cable here
also They are "off
the shelf" cables.
The microphone can be
connected direct to the Control-RRC AUX/MIC jack, if you have a mic with
RJ-45 connector. If you have a microphone with a the circular
connector which fit to the K3 front you can buy a adapter cable MJ-88 from Kenwood or make
one by your self.
Between the Radio-RRC AUX/MIC and the circular mic jack on the radio you need to make a adapter cable by your
self or buy one from ex. a Tigertronics distributor (for Signallink), it's
art. no. is SLCAB8R. If you use Tigertronic cable you need to put the straps
different (see below). It's also quite easy to make one by your self, just
cut a standard STP (screened) patch cable and solder a 8 pin circular
connector on it. Make the cable as short as possible to prevent it from
picking up HF.
The speaker is connected direct to the SP-jack on the front of the
Control-RRC with a 3.5 mm stereo plugg.
The speaker signal from the Radios ext. speaker jack to the Radio-RRC SP jack is connected via a standard "off the shelf cable" with 3.5 mm stereo plugs in both ends.
Be aware of that the RRC:s only handles audio in mono.
Attention! Always check for updated drawings before starting to make cables
Cables
from Mic/Speaker/PC to RRC-1258MkII
Printer friendly
drawing =>
Cables from RRC-1258MkII to Elecraft K3 Radio
Printer friendly drawing =>Strapping
Before connecting the cables to radio and control panel you need to do some strappings inside the RRC:s. For instructions of how to open the RRC:s see "Open the box / straps" page. Down below is the strappings that need to be done described.
If your microphone needs a bias voltage put JMP1 in place.
If you use SLCAB8R adapter cable the strapping should be done as bellow.
If you want to be able to Connect resp. Disconnect the SIP-connection via the Microphone UP button you can add the grey strap in the control RRC. But don't press the button when you are in QSO.
If you make the Mic cables by your self you can test them with them with the 2xRJ-45 extender before connecting them to the RRC:s. But if you use the SLCAB8R adapter cable you can NOT test them this way . Drawing 2xRJ-45
