Marti Electronics SRPT-30, User Manual

Page: 28 / 129

8/7/2003
22
MIC Input Connectors
These balanced inputs are for a 150 ohm dynamic microphone such as the Shure BG 1.0 with standard XLR-3 or
A3M connector. Microphone connections are given in INSTALLATION.
Input 4 can operate at MIC LEVEL or HIGH LEVEL by means of a SELECTOR switch inside the transmitter just
behind the Input 4 pot. The unit is factory selected for “HI” (HIGH) LEVEL balanced input for use with tape machines,
etc. To convert Input 4 to MIC (microphone) LEVEL, remove top cover and move switch to “MIC”.
MONITOR Jack
The MONITOR jack is active in “STANDBY” and “TRANSMIT” positions of the TRANSMIT/STANDBY
switch. A high-quality headset having 300 ohms or higher impedance can be plugged into the MONITOR jack to make
adjustments or to monitor the quality of the audio being transmitted. A miniature, single circuit, 1/8 inch, phone plug
should be used with the MONITOR jack.
POWER ADJUST Pot
When the SRPT-30/40A is transmitting, this pot can be adjusted to increase or decrease the output power from the
MAXIMUM power setting to almost zero Watts.
TRANSMIT LED
When the TRANSMIT/STANDBY switch is in the STANDBY position, the SRPT-30/40A will not transmit and
the TRANSMIT LED will be off.
When the TRANSMIT/STANDBY switch is in the TRANSMIT position but the SYNTHESIZER is not ready, the
SRPT-30/40A will not transmit and the TRANSMIT LED will flash red.
When the TRANSMIT/STANDBY switch is in the TRANSMIT position and the SYNTHESIZER is ready (which
is always three seconds after the SYNTHESIZER becomes locked), the SRPT-30/40A will transmit and the
TRANSMIT LED will be on, solid red.
TRANSMIT/STANDBY Switch
This switch is placed in “STANDBY” position to shut off the output power. The synthesizer will still be locked on
frequency as indicated by the solid AFC LOCK LED. The TRANSMIT/STANDBY switch is placed in the
“TRANSMIT” position when transmission is desired. The output power will turn on immediately at an output power that
correlates to the POWER ADJUST position. The TRANSMIT/STANDBY switch should be returned to the
“STANDBY” position as soon as a transmission is completed.