Icom IC-F4062S Sales Handbook

Also see for IC-F3062S: Servise manual Service manual Service manual Service manual Instruction manual

3-3 2-Tone (LMR) Signalling30✔ LMR (2-Tone)LMR (LTR)LMR (Digital)PMR (5-Tone/DTMF)BIIS PMR✔ LMR (2-Tone)LMR (LTR)LMR (Digital)PMR (5-Tone/DTMF)BIIS PMRWhat is 2-Tone Signalling?1. Originally called “Quick Call”, this signalling protocolwas developed by Motorola in the 1950’s.2. 2-Tone (Quick Call) was designed to add Squelchspecificity especially for emergency service radios.3. LMR consists of two distinct signals sent over the airto a radio or a group.4. Each tone can be configured within a 250 Hz and3300 Hz tone frequency.5. Normally, the duration of the tones varies from one(1) to three (3) seconds in length no space betweenthe tones. Tone lengths of up to 10 seconds arecommonly seen in existing applications.6. ICOM radios allow variable tone periods and spaces(no tone) between the tones.2-Tone Features• “Selective Calling” – allows the dispatch console topage an individual unit. Early models only allowed 1(one) encoding tone set per channel or up to 3(three) receive tones in the radio. Newer ICOMradios allows the programming of up to 10 (ten)tones that can be used all in one channel ifnecessary.• “Group Calling” - allows the dispatch console topage a group.• “Answer Back Call” – Also known as “Radio Check”allows the dispatch console or another portable, tosend a tone to a particular radio and when thetarget radio receives the tone it answers back withanother tone. This function serves as a tool to verifyif a unit is “ON” and within range.• “Auto Transmit” – Also known as “Radio Spy” allowsthe dispatcher to send a 2-Tone signal to the radiocausing it to open its transmitter microphone audio(Hot Mic) in order to listen to whatever is happeningin the proximity of the radio. This is also very useful inemergency cases where the user may not be able totrigger the microphone.•“Stun/Kill – This function allows the dispatchconsole to disable, temporarily or permanently, a unitusing the 2-Tone capabilities. When “Stun” is used,the unit may regain its functionality by entering apassword. When Kill is used, the radio only regainsfunctionality by reprogramming the unit using thecloning software.•“Scan Start/Cancel” – Using 2-Tone a dispatchercan send a signal to a radio or a group to commencethe “Scan” function of the radio. If used with a groupof users, this feature allows the dispatcher toregroup everyone in a different, but commonchannel. This feature is also known as “RadioRegroup”.ICOM 2-Tone Radio Enhancements include:1. RX Code Text – Allows the programmer to add an“Alpha Numeric” text tag to each tone foridentification at decode and encode if the unit has adisplay.2. Variable Signals – This allows the user/programmerto set the “Beep and Bell” to different formats foreasier identification when a signal is received.3. Tones Assignable on a Channel by Channel Basis –The newer Icom radios allow the programmer toenter in ten (10) tone sets, which can be used forboth encode AND decode if necessary. Each channelhas the capability to use all tones for both encodeand decode, if programmed correctly.4. Multiple Tone Sets per Channel – This also allows theprogrammer to set all ten (10) tones on a singlechannel if it was deemed necessary. Each channelallows a programmer to use a combination of tonesper channel as needed.