Ricoh 21-1812 - Manual

5 Warning: Do not connect either adapter tothe radio if non-rechargeable batteries(such as alkaline batteries) are installedand CHRG is set to ON , or if you are unsure of the switch’s position. Non-rechargeablebatteries can get hot or explode if you try torecharge them. Before using nickel-cadmium ...

6 Connecting an AC Adapter You can charge the radio from a standardAC outlet using an optional AC adapter(such as Cat. No. 273-1665). Warning: Do not use an AC adapter’s po-larized plug with an extension cord, recep-tacle, or other outlet unless the blades canbe fully inserted to prevent blade expos...

7 2. Plug the other end of the adapter into a standard AC outlet. The CHARGEindicator lights. Connecting a DC Adapter You can charge the radio from your vehi-cle’s cigarette-lighter socket using an op-tional DC adapter, such as Cat. No. 270-1560 or 273-1810. Cautions: • The recommended DC adapter su...

9 ATTACHING THE BELT CLIP Use the suppliedbelt clip to take yourradio along whenyou are on the go.Use a coin or screw-driver to screw thebelt clip to the radio,then slide the clipover your belt orwaistband. CONNECTING AN OPTIONAL MICROPHONE/SPEAKER To use the radio private-ly, connect an optionalhea...

10 OPERATION CONTROLS VOL/OFF — turns on or off the radio and ad- justs the volume. PTT — To talk, hold down this button and wait about 1 second, then speak into themicrophone. The TX indicator lights. Re-lease PTT when you finish speaking. CALL — sends a paging tone to all radios tuned to the same ...

11 CHANNEL (Up) and (Down) — raise and lower the channel number. LIGHT/LOCK — lights the display for 5 sec- onds and locks CHANNEL / , CALL , LIGHT , and QUIET to prevent acci- dental operation. (It does not affect MON .) To turn it on or off, hold down LIGHT/LOCK until appears or disappears. DISPLA...

12 USING QUIET CODES This radio uses quiet (CTCSS) codes toscreen out unwanted conversations, even ifsomeone is transmitting nearby on thesame channel. When a quiet code is set,the radio sends it every time PTT or CALL is pressed and only responds to signals thathave the same code. Radios you plan t...

13 AUTO-SQUELCH Your radio has auto-squelch, which meansyou won’t hear anything on a channel un-less someone is transmitting nearby on thesame channel. To turn off auto-squelch (soyou can hear weaker, distant transmis-sions), hold down MON (monitor). Release MON to turn auto-squelch back on. AUTO PO...

14 • Never change or replace anything in your radio except the batteries. Your radio might cause TV or radio inter-ference even when it is operating properly.To determine whether your radio is caus-ing the interference, turn it off. If the inter-ference goes away, your radio is causingit. Try to eli...

15 SPECIFICATIONS Output Power ..................... 300 mW ERP Battery Life (Alkaline) ............... 120 Hours (at Standby) Battery Power: Alkaline ................................. 4.5 VDCNi-Cd .................................... 3.6 VDC Frequencies: Specifications are typical; individual units...