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18. TONE CALL SWITCH: This switch is reserved for optionalSELCALL operation.
Push the T. CALL switch, (when this action is taken, TX indicator will flash), then,
TONE SIGNAL will be generated and it opens the Squelch of the other units which
have the same tone squelch function.
19. TONE SQUELCH SWITCH: This switch is reserved for optional SELCALL operation.
Push the T.SQ switch while receiving the TONE SIGNAL. Then, the Circuit of the
SQUELCH is automatically opened.
20. CHANNEL SELECTOR SWITCH: This switch selects the desired channel for trans-
mission and reception.
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21. EXTERNAL SPEAKER: The External Speaker Jack is used for remote receiver
monitoring. The external speaker should have a-ohm impedance and be rated to
handle at least 4.0 watts. When the external speaker is plugged in, the internal
speaker is automatically disconnected.
22. POWER: This jack permits connection of the D.C. power to the transceiver. A power
cord is supplied with the radio.
23. ANTENNA CONNECTOR: This female connector permits connection of the trans-
mission line cable male connector (M-Type) to the transceiver.
Memory Backup
Channels maintained in the SUNDOWNER UH-077 memory are protected from loss by a
built-in capacitor which protects the memory for up to 12 hours when you disconnect the
DC Power Cable.
SERVICING YOUR TRANSCEIVER
The technical information, diagrams and charts will be supplied upon request.
Itis the user's responsibility to see that this radio isoperating at all times inaccordance with
the D.O.C. Citizens Radio Service regulations.
We highly recommend that you consult a qualified radiotelephone technician for the ser-
vicing and alignment of this UHF CB radio product.
Please refer to the WARNING information contained in the 2nd page ofthis Owner's Manu-
al.
(NOTE: When ordering parts, it isessential to specify the correct model number and serial
number of the unit.)
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