User's Manual

CAUTION & WARNING

NEVER INSTALL AND CONNECT THE 12-15 VOLT AND THE 15-30 VOLT SUPPLIES AT THE

SAME TIME.

ALSO, NEVER CONNECT THE 15-30 VOLT SUPPLY TO THE 12-15 VOLT PINS AND NEVER

CONNECT THE 12-15 VOLT SUPPLY TO THE 15-30 VOLT PINS.

DOING SO MAY DAMAGE THE INTERNAL SWITCHING SUPPLY OR EITHER OF THE

EXTERNAL DC SUPPLIES.

CAUTION & WARNING

NEVER CONNECT THE SRPT-40A TO THE AC LINE AND EITHER OF THE EXTERNAL DC

SUPPLIES AT THE SAME TIME.

DOING SO MAY DAMAGE THE INTERNAL SWITCHING SUPPLY OR THE EXTERNAL DC

SUPPLY.

AC LINE Switch, AC Receptacle & Fuse

When the transmitter is not in use or if the SRPT-40A is to run off of an external supply, the AC LINE switch

should be in the “OFF” position.

When ready to use the SRPT-40A off of the AC line voltage, plug power cord into the AC Receptacle and switch

the AC LINE switch to the “ON” position.

The AC line fuse is rated at 2.5 amps.

AFC LOCK LED

The AFC LOCK LED will either be flashing or solid green at all times, except during initial power up – and in that

case it will only be off for a few seconds.

When the SYNTHESIZER is searching for a frequency to lock on to and is therefore not locked, the AFC LOCK

LED will flash green. When the SYNTHESIZER finds and locks onto the frequency it was searching for, the AFC

LOCK LED will stay on, solid green. Three seconds after the SYNTHESIZER becomes locked, it will then be ready and

will enable the transmitter to output power.

In normal conditions, the SYNTHESIZER will not come “unlocked” unless sent a command to change to change to

a new frequency. However, other conditions can cause the SYNTHESIZER to come unlocked such as an AC line surge

or a sudden and very large change in VSWR. In those cases, the SYNTHESIZER will re-lock back on the assigned

frequency. The AFC LOCK LED will flash green until the SYNTHESIZER is locked. Once the SYNTHESIZER is

locked it will stay on, solid green.