EXTERNAL SPEAKER
The external speaker jack (EXT. SP.) on the rear panel is used for remote
receiver monitoring. The external speaker should have 8 ohms impedance
and be able to handle at least 4 watts. When the external speaker is plugged
in, the internal speaker is disconnected.
PHONE JACK
This PHONE jack accepts headphone of 4 to 32 ohms impedance. When a
headphone is plugged into this jack, both internal and external speakers are
silenced simultaneously.
PUBLIC ADDRESS
To use the transceiver as a public address system, connect an external 8 ohms
speaker (4 watts minimum) to the PA. SP. jack located on the rear panel.
Direct speaker away from the microphone to prevent acoustic feedback.
Physical separation or isolation of the microphone and speaker is important
when operating the PA at high output levels.
CHAPTER 3 OPERATION
CONTROL FUNCTIONS
FRONT PANEL
1. PHONE JACK :
Used to connect headphones for listening.
2. MICROPHONE JACK :
Used to connect microphone for voice source.
3. RF POWER CONTROL :
This control allows the user to adjust RF
power output.
4. RF GAIN CONTROL :
This control is used to reduce the gain of the RF
amplifier under strong signal conditions.
5. MIC GAIN CONTROL :
Adjust the microphone gain in the transmit and
PA modes. This controls the gain to the extent that full talk power is
available several inches away from the microphone. In the Public
Address (PA) mode, the control function as the volume control.
- 5 -
- 6 -
CLARIFIER
DX 2547
AM / SSB Base Station CB Radio
MIC
PHONES
OFF
MIC RF
OFF
DIM TONE
RF POWER
SWR
PWR
MOD
POWER
TALKBACK
SWR
0
20%
3
PWR
MOD
1
S
9
3
1
1.5
3
2
6
MA
X
15
12
40%
5
7
9
60%
80% 10
0%
+40
+20
SWR ALERT
PA
RX / TX
R. B.
USB AM LSB
GNF
ANL
CLARIFIER
NB
+60
dB
CHANNEL
GNF R.B.
PA
AM
NB
USB
ANL
LSB
VOLUME
SQUELCH
NORMAL
9
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