RELM WIRELESS CORP. - BK RADIO DPHX51 User Manual

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22                                                                                            BK Radio 
Priority Mode A With Scan 
In Priority Mode A, the priority channel is set 
by the Channel Selector knob. Priority Mode A 
is seldom used by itself because the radio 
receives and transmits only on the knob-
selected channel. 
When Switches B (scan) and C (priority) are 
up, scanning occurs until an active scan 
channel is found. The radio receives the 
message while continuing to check the priority 
channel. The display shows the scan channel.   
If the priority channel becomes active during 
this message, the Priority Indicator will light. 
The radio changes to the priority channel and 
holds for the duration of the message. The 
display shows the priority channel. 
To reply to a message on the priority channel, 
press the PTT switch and the radio will 
transmit on the priority channel. Once activity 
ceases on the priority channel, the radio 
returns to scan operation. 
Priority Mode B 
With Switch C (priority) up and Switch B 
(scan) down, the radio can receive on the 
knob-selected channel while sampling the 
priority channel. If the priority channel 
becomes active, the Priority Indicator lights 
up. The radio changes to the priority channel 
and holds for the duration of the transmission.   
To reply to a message on the priority channel, 
turn the Channel Selector knob to the priority 
channel, and then transmit. 
PR          RX SCN 
 LABEL    12   
PR          RX SCN 
 LABEL      3  
 
 
 
 
DPH Owner’s Manual                                                                           23           
Priority Mode B with Scan 
With Switches B (scan) and C (priority) up, the 
radio scans until it locks on to an active 
channel. The radio continues to sample the 
priority channel while listening to the active 
scan channel. 
If activity occurs on the priority channel, the 
radio overrides the active scan channel, 
changes to the priority channel, and holds for 
the duration of the transmission.   
To reply to a message on the priority channel, 
turn the Channel Selector knob to the priority 
channel, and then transmit.  Once activity has 
ceased on the priority channel, the radio 
returns to scan operation. 
Priority Mode C  
With Switch C (priority) up and Switch B 
(scan) down, the radio samples the fixed 
priority channel at the preset rate. If activity 
occurs on the priority channel, the radio 
changes to the priority channel and holds for 
the duration of the transmission.   
To reply to a message on the priority channel, 
press the PTT switch. The radio transmits only 
on the priority channel when Switch C (priority) 
is up.  Once activity has ceased on the priority 
channel, the radio returns to the receive 
channel on the Channel Selector knob. 
Priority Mode C with Scan 
With Switches B (scan) and C (priority) up, the 
radio scans until it locks on to an active 
channel. The radio continues to sample the 
priority channel while listening to the active 
channel. If activity occurs on the priority 
channel, the radio overrides the active scan 
channel, changes to the priority channel, and 
holds for the duration of the transmission.