Controls And Indicators; Controls And Connections - Standard Communications Horizon HX255S Owner's Manual

3
This section defines each control of the transceiver. For detailed
operating instructions refer to section 4 of this manual.
Refer to Figure 1 for the location of the following controls, indicators,
and connections.

3.1 CONTROLS AND CONNECTIONS

q q POWER SWITCH/VOLUME CONTROL
Turns the transceiver on and off, and adjusts the volume.
w w SQUELCH CONTROL
Sets the point at which random noise on the channel does not
activate the audio circuits but a received signal does. This point is
called the squelch threshold. Further adjustment of the squelch
control will degrade the reception of wanted transmissions.
e e TX/BUSY LED
Lights RED to indicate that the Push-To-Talk switch is pressed.
Lights GREEN to indicate that the selected channel is busy during
reception.
r r PUSH-TO-TALK (PTT) SWITCH
Activates transmission.
t t UP KEY
Selects the desired channel. Each press increases the channel
number. When held down, the channels increase continuously.
y y DOWN KEY
Selects the desired channel. Each press decreases the channel
number. When held down, the channels decrease continuously.
u u 16/9 KEY
Immediately recalls channel 16 from any channel location. Holding
down this key recalls channel 9. When the WX key is pressed while
holding down this key, the mode toggles between USA, International
and Canadian.
HX255S

CONTROLS AND INDICATORS

NOTE
Owner's Manual
Page 3