Radio Shack 20-423 owner manual Look AT the Display

L/O RVW, L/O

WX — scans through the seven preprogrammed weather channels.

SCAN — scans through the programmed channels.

MANUAL — stops scanning and lets you directly enter a channel number.

(Lock Out Review/Lock Out) — lets you review locked-out frequencies, or lets you lock out selected channels/ frequencies so they will not be scanned or searched.

8#and 9 — enters the direction the scanner will search or scan.

MON/CL (Monitor/Clear) — accesses the 20 monitor memories or clears an incorrect entry.

PGM (Program) — programs frequencies into channels.

Number Keys — each key has a single-digit label and a range of numbers. Use the digits on the keys to enter the numbers for a channel or a frequency. Use the range of numbers above the key (21–40, for example) to select the channel in a channel-storage bank.

DELAY/. —- programs a 2-second delay for the selected channel, or enters a decimal point (necessary when programming frequencies).

ENTER —- enters frequencies into channels.

A LOOK AT THE DISPLAY

The display shows the scanner’s current operating mode.

FD/PD — appears when you search the fire/ police service bank.

BANK — appears with numbers (1–10). Bank numbers with a bar under them show which ones are turned on for scanning.

AIR — appears when you search the air service bank.

HAM — appears when you search the ham radio service bank.

MARINE — appears when you search the marine service bank.

8or 9 — indicates the search or scan direction.

M — flashes with a number (1–20) to show which monitor memory you are listening to.

CH —- the digits that precede this indicator (1–200 and P) show which channel the scanner is tuned to.

L/O — appears when you manually select a channel you locked out while scanning or when you review a locked out frequency.

WX — appears when you scan the weather channels.

Understanding Your Scanner 9