Icom IC-7700 Instruction Manual - Page 136

9 SCANS ■ Scan types PROGRAMMED SCAN Repeatedly scans between two scan edge frequencies (scan edge memory channels P1 and P2). Scan edge P1 or P2 Scan edge P2 or P1 Scan Jump This scan operates in VFO mode. MEMORY SCAN Repeatedly scans all programmed memory channels. Blank channel Mch 1 ★1 Mch 2 ★2 Mch 3 ★1 Mch 4 *"★1," "★2" and "★3" show that the channel is specified as the select memory. Mch 99 ★1 Mch 7 ★1 Mch 6 ★3 Mch 5 ★1 This scan operates in memory mode. • The scan function can be used on the main readout only. • You can perform a scan while operating on a frequency using the split functions. ∂F SCAN Repeatedly scans within ∂F span area. -∂F frequency Scan Start frequency +∂F frequency Scan Jump This scan operates in both VFO and memory modes. SELECT MEMORY SCAN Repeatedly scans all or one of 3 select memory channels. Blank channel Mch 1 ★1 Mch 2 ★2 Mch 3 ★1 Mch 4 *"★1," "★2" and "★3" show that the channel is specified as the select memory. Mch 99 ★1 Mch 7 ★1 Mch 6 ★3 Mch 5 ★1 This scan operates in memory mode. ■ Preparation • Channels For programmed scan: Program scan edge frequencies into scan edge memory channels P1 and P2. For ∂F scan: Set the ∂F span (∂F scan range) in the scan screen. For memory scan: Program 2 or more memory channels except scan edge memory channels. For select memory scan: Designate 2 or more memory channels as select memory channels. To designate the channel as a select memory channel, choose a memory channel, then push [SELECT] F-3 in the scan screen (memory mode) or in the memory list screen. • Scan resume ON/OFF You can select the scan to resume or cancel when detecting a signal in set mode. Scan resume ON/OFF must be set before performing a scan. See p. 9-3 for ON/OFF setting and scan resume condition details. • Scan speed Scan speed can be selected from 2 levels, high or low, in scan set mode. See p. 9-3 for details. • Squelch condition SCAN STARTS WITH PROGRAMMED SCAN MEMORY SCAN SQUELCH OPEN The scan continues until it is stopped manually, and does not pause even if it detects signals. Scan pauses on each channel when the scan resume is ON; not applicable when OFF. Scan stops when detecting a signal. SQUELCH CLOSED If you set scan resume ON in set mode, the scan pauses for 10 sec. when detecting a signal, then resumes. When a signal disappears while scan is paused, scan resumes 2 sec. later. 9-2