Uniden UH-057 manual Lead-In Tone, Key LCD Display, Sec

2. Select your Lead-In Delay setting from the table below.

Key	LCD Display	Lead-In Delay
		Period
0	LO	0.5 Sec
1	L1	1.0 Sec
2	L2	2.0 Sec
3	L3	3.0 Sec
4	L4	4.0 Sec

For example, selecting 1.0 Sec as Lead-In Delay Press <D. The LCD displays

[ LI ]

3.Press the @ Key to complete the programming. Two beeps will be heard and the unit returns to its previous status prior to accessing Programming Mode.

Lead-In Tone

The Lead-In tone when programmed "rides" on the Lead-In Delay. Hence, when transmitting a SELCALL ID a continu- ous tone will be heard by the receiver in the duration of the Lead-In Delay.

Lead-In Tone's main purpose is to increase the probability

of contact between your unit and the other radio WHEN TSQ SCANNING.

Normally on TSQ Scanning, if a carrier is detected and the unit sees no SELCALL information on its first "glance" at the particular signal, scanning resumes.

But if the Lead-In Tone is present, the unit waits further until the SELCALL ID is received.

UH-O57 Page 32