Galaxy DX 2517 Panduan Pemilik - Halaman 7
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6. REC JACK: The RCA-type (pin) jack provides audio output for
connection to a tape recorder. This can be used to record
incoming signals or your voice when transmitting.
8. FREQUENCY COUNTER JACK: The RCA-type jack
provides a signal used by some frequency counters so you can
read the frequency digitally. This readout signal operates on
transmit only.
4. CW KEY: Use for Morse Code operation. Connect a CW key to
this jack and place the MODE switch in the CW position.
MICROPHONE:
The receiver and transmitter are controlled by the push-to-talk
switch on the microphone. Press the switch and the transmitter is
activated, release switch to receive. To transmit, hold the
microphone about two inches from your mouth and speak clearly
in a normal voice. The radio comes complete with a low impedance
dynamic microphone.
OPERATION PROCEDURE
A. PROCEDURE TO RECEIVE
1. Make sure that the power cord, microphone and antenna are
connected properly.
2. Turn the volume down to about the nine o'clock position.
3. Set the mode switch.
4. Push the power switch on. The meter and display LED's
should light up unless the dimmer control is set too low.
5. Select the desired frequency.
6. Adjust the receive gain for maximum.
7. Set the squelch as desired.
8. Use the "COARSE/FINE" control as necessary to tune
signals in properly.
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B. PROCEDURE TO TRANSMIT
1. Set the MIC gain fully clockwise.
2. Press the push-to-talk switch on the microphone and speak
directly into the microphone.
3. Adjust the MIC gain down if the person you are talking to
says your are too loud.
C. MICROPHONE GAIN CONTROL
A preamplifier circuit is built into the radio to increase the
microphone gain. Experiment with the control for setting that
will best suit your individual use.
Note: When the microphone gain control is set to maximum,
ambient noise may also be picked up by the microphone. In high
noise situations, low microphone gain setting may produce the
best results. The microphone gain control is also used to adjust
PA loudness.
D. PUBLIC ADDRESS OPERATION
To use this feature of the transceiver, a speaker having a voice
coil impedance of 8 to 16 Ohms and power handing capability
of least 3 watts should be connected to the PA SP jack on the
rear panel. Be sure that there is physical separation between the
microphone and the PA speaker itself. If the PA speaker is
located very close the microphone, acoustic feedback will result
when the PA amplifier is operated at high volume (or when PA
is used indoor). Adjustment of PA volume is made with MIC
GAIN control.
E. S.W.R MEASUREMENT
Most antenna are factory tuned, but the antenna efficiency may
be peaked by slightly adjusting the length of antenna using the
SWR meter built into the unit. This adjustment may improve the
antenna standing wave ratio (SWR). The SWR permits you to
determine how well matched the antenna and its cables are to your
transceiver.
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