TS-930 transciever mods
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Part 2 of 2

Additional comments:
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Even though the receiver low frequency end is spec'd as 150kHz, it will
operate down to 100kHz. To conveniently switch in a general purpose receiving
antenna you must use the transverter connector. When the 8 pin DIN plug is
plugged into this connector, a switch operates which separates the coaxial
antenna input from the receiver input. These two connections appear at pins 8
and 5 resp. of the transverter connector. (This 8 pin DIN plug is not
furnished with the 930).  The most convenient setup is to bring cables from
both the REMOTE and TRANSVERTER connectors into a junction box which has
appropriate connectors and switches on it for interfacing to a transverter,
receiving antenna, linear amp, etc.

Here is a chart of the connections to these connectors:
REMOTE (7 pin DIN)   XVERTER (8 pin DIN)
1 Speaker output     1 Grd
2 Grd                2 +V out on xmit*
3 PTT                3 Grd
4 Q-22 out**         4 XVRT ON/OFF Control***
5 unused             5 Receiver input
6 ALC input          6 XVRTR ALC input
7 XMIT RELAY**       7 Xmit RF to xvrtr input
                     8 HF ant in

* A 12 volt, 50ma max. relay may be connected from pin 2 to ground. This
relay will operate on xmit.

** Original units used Q-22 collector for linear amp relay control.  This did
not work with low voltage relay systems or those using a negative voltage. An
optional relay board (Now supplied in all units as standard) is available and
provides a normally open contact closure to ground at pin 7.

*** Pin 4 is grounded to enable xvrtr operation. This may be done by a switch
in the transverter itself.

Be careful not to transmit out-of-band, or accidentally operate on any
non-amateur frequency, unless you are authorized to do so.

DO NOT JEOPARDIZE YOUR LICENCE!

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