User manual ICOM IC-40 JR

[. . . ] FM TRANSCEIVER FOREWORD Thank you for purchasing the IC-40Jr UHF C. R. S. FM transceiver is designed for those who require top quality, performance and outstanding reliability under the most demanding conditions. IMPORTANT READ ALL INSTRUCTIONS carefully and completely before using the transceiver. SAVE THIS INSTRUCTION MANUAL­ This instruction manual contains important operating instructions for the IC-40Jr UHF C. R. S. NEVER hold the transceiver so that the antenna is very close to, or touching exposed parts of the body, especially the face or eyes, while transmitting. The transceiver will perform best if the microphone is held 5 to 10 cm away from your mouth and the transceiver is vertical. [. . . ] · To cancel the scan, push [DOWN/Z] (or [UP/Y]) while [UP/Y] (or [DOWN/Z]) is pushed, or push [PTT]. 13 8 GROUP MODE (CTCSS) ` Setting the group code The IC-40Jr is equipped with 38 group codes. Group mode operation provides communication with silent standby since you will only receive calls from group members using the same group number. First of all, set the same group code number for all group member's transceivers. To turn ON the group mode operation: q Push [MODE] to enter set mode. · Operating channel number disappears and " -­­ " (group mode OFF) appears in the display. e Push [MODE] to set the group code number. w w qe To cancel the group mode operation: q Push [MODE] to enter set mode. w Push [UP/Y] or [DOWN/Z] to select " -­­ " (group mode OFF). e Push [MODE] to cancel the group mode. IMPORTANT!: Before transmitting, make sure the channel you will operate with the group mode is clear by pushing [MODE] for 1 sec. , to prevent interference to other stations. NOTE: Only stations with the same group channel number can be heard during group mode operation, even when the busy indicator appears in the display. 14 GROUP MODE (CTCSS) 8 What is CTCSS (Continuous Tone Coded Squelch System) GROUP MODE ? CTCSS (Continuous Tone Coded Squelch System) GROUP MODE allows communication with silent stand by. This conveniently eliminates unwanted audio and is useful in group activities or security related activities where unwanted output can be a problem. Note that CTCSS group mode is not private-- anyone can receive your calls. Each push of [PTT] superimposes your group code over your transmit signal; and, only signals containing the same code can open your squelch. To temporarily hear all signals (including noise) push and hold [MODE]. Do not use CTCSS GROUP MODE if you want to be able to hear all signals on the channel. D CTCSS code table Code 01 02 03 04 05 06 07 08 09 10 Freq. 67. 0 71. 9 74. 4 77. 0 79. 7 82. 5 85. 4 88. 5 91. 5 94. 8 Code 11 12 13 14 15 16 17 18 19 20 Freq. 97. 4 100. 0 103. 5 107. 2 110. 9 114. 8 118. 8 123. 0 127. 3 131. 8 Code 21 22 23 24 25 26 27 28 29 30 Freq. 136. 5 141. 3 146. 2 151. 4 156. 7 162. 2 167. 9 173. 8 179. 9 186. 2 Code 31 32 33 34 35 36 37 38 --Freq. 192. 8 203. 5 210. 7 218. 1 225. 7 233. 6 241. 8 250. 3 OFF (unit: Hz) 15 9 RING FUNCTION ` Smart-Ring The Smart-Ring function has an answer back feature. This allows you to confirm whether or not a call has reached the receiving party. · When a member of your group answers your call, the transceiver emits beep tones for 10 sec. · When no answer comes back, the transceiver emits short faint beep tones. NOTE: This function is available only when the called station has set the same group number and the same operating channels as you. ` Call-Ring Sends the ring tones during transmit mode. · The microphone signal is automatically cut while pushing [DOWN/Z]. 16 OTHER FUNCTIONS ` Initial set mode 10 Initial set mode is accessed at power ON and allows you to set seldom changed settings. [. . . ] channels (476. 425­477. 400 MHz) · Mode : F3E (FM) · Frequency stability : ±3. 0 kHz · Frequency resolution : 25 kHz · Power supply requirement: 4. 5 V (AA × 3) or BP-202 · Current drain : Less than 500 mA · Battery life (Tx:Rx:Stand-by=1:1:8): 3 Alkaline cells approx. : 38 · Dimensions : 55. 5(W)×102. 5(H)×26. 5(D) mm (projections not included) · Weight : 180 g (including 3 AA batteries) · Frequency coverage TRANSMITTER · Output power · Maximum deviation · Spurious emissions · Ext. connector : 500 mW ±20% (at 4. 5 V DC) : Less than ±5. 0 kHz : Less than ­30 dBm : 3-conductor 2. 5 (d) mm/2. 2 k RECEIVER · Receive system : Double-conversion superheterodyne · Sensitivity : Less than 0. 2 µV (12 dB SINAD) · Selectivity : More than 12 kHz/­6 dB · Spurious and image rejection: More than 40 dB · Adjacent Ch. rejection : More than 40 dB · Intermodulation rejection : More than 40 dB · Audio output power : More than 100 mW at 10% distortion (at 4. 5 V DC) with an 8 load · Ext. [. . . ]