Paul, I think you are looking at the wrong side of the transformer, on
the circuit diagram the right hand side connects to the rear panel
sockets via J91 and is floating with respect to DC ground.
73 Dave, G4AON
According to the schematics one end of the K3 line out
Dave G4AON wrote:
Paul, I think you are looking at the wrong side of the transformer, on
the circuit diagram the right hand side connects to the rear panel
sockets via J91 and is floating with respect to DC ground.
Doh.
You are quite correct. Thanks for pointing this out Dave. Makes
Paul Fletcher wrote:
Dave G4AON wrote:
Paul, I think you are looking at the wrong side of the transformer, on
the circuit diagram the right hand side connects to the rear panel
sockets via J91 and is floating with respect to DC ground.
Doh.
You are quite correct. Thanks for pointing
Hi all,
I am making up a cable set to connect a Pactor modem to the K3 and wish to
avoid ground loops. The connections to the radio are:
PTT
Power (from the 12v out connector on the back of the K3)
Line in
Line out
According to the schematics one end of the K3 line out isolation transformer
is
Hello Paul
I took the pre-wired cable that came with my PTC-IIex and terminated the
cable in a plastic project box, I connected all 4 of the braid of the
screened leads to/from the K3 to the braid of the cable to the SCS
modem. The white wire (pin 2 of the DIN plug) on the cable from the
modem
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