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Фрагмент инструкции
To do this, press the [5] SQ switch again. Make sure the label “SQ” goes off. Noise blanker (NB): Always in circuit. This function is to clip off inputs noise resulting from an engine ignition or motor brush sparks. 1.11 Frequency Scan Channel scan: Scan is the function where the receiver watches 10/group custom or ITU channels in succession at predetermined intervals. The scan-stop signal level and scan-stop time can be changed on system codes 9951 and 9952, respectively. Prior to the use of the scan function, turn AGC on. 1. Recall Custom or ITU channel Custom channels Custom channels are divided into 20 groups in the scan mode as below. Scan Group Custom Channel No. 1 1 to 10 2 11 to 20 3 21 to 30 4 31 to 40 5 41 to 50 6 51 to 60 7 61 to 70 8 71 to 80 9 81 to 90 10 91 to 100 11 101 to 110 12 111 to 120 13 121 to 130 14 131 to 140 15 141 to 150 16 151 to 160 17 161 to 170 18 171 to 180 19 181 to 190 20 191 to 200 -1.15 ITU channels: To select the scan group (band or channel), shift the cursor to either the position of the band or channel number by pressing the [2] CURS key. (Band scan is useful to watch frequencies on the same channel in different bands.) 2. Press the [6] SCAN key, and “SCAN” appears. The receiver starts scanning, stopping at a channel where the signal is stronger than the scan-stop level. The receiver will restart scanning when the traffic goes out of that channel. For example, the scan group is “channel” and scan starts at ITU 1203: SIMP R 02 4 68 10 S LOW AGC NB SWEEP SCAN J3E 3. To stop scanning, press the [6] SCAN key. “SCAN” disappears from the operation display. 1.12 Frequency Sweep Sweep is the function where the receiver searches for a signal within a selected frequency coverage. For sweep operation, the AGC function should be ON. The defaults of respective parameters are as follows: Sweep stop signal level 3 Sweep stop time 2 s Sweep width 100 kHz Step frequency 1 kHz These can be adjusted on system codes 9951 through 9954. NOTE: Sweep width is the frequency width to sweep on both sides of the selected frequency. Sweep step is the frequency interval at which the receiver sweeps the sweep width. Procedure 1. Select the sweep center by key operation. 2. Press the [6] SCAN key. “SWEEP” appears and the receiver starts sweeping. 3. To stop sweeping, press the [6]. -1.16 Chapter 2 OPERATION of OPTIONAL DEVICES 2.1 Telex Communication Telex communication is performed with a Narrow-band direct-printing (NBDP) Terminal connected with an SSB transceiver. The recommended terminal for the FS-1562 is FURUNO DP-6. Other makes can also be connected with the FS-1562, if they comply with the interfacing requirements. FURUNO NBDP Terminal DP-6 No special operation is required; class of emission and frequencies are automatically set on the DP-6. Other makes of NBDP Terminal: 1. Select “TLX” with the [1] MODE key. 2. Select a desired frequency. 3. Tune the antenna coupler by pressing the [7] TX TUNE key. NOTE: The DP-6 provides Forward Error Correction (FEC) mode to ensure quality communications. Continuous transmission on FEC can cause the transceiver internal temperature to go up beyond the temperature control sensor actuating point. When the internal temperature of the 150 W transceiver is above the sensor actuating temperature, the power is reduced to the LOW power. When the temperature goes down, the power is restored to the high rating. If this can cause an inconvenience of operation, it is recommend to install the fan kit (option), for added cooling effect. The FS-1562-25, 250 W version, handles the high power in the Power Amp Unit PA-2500. The PA-2500 is provided with a cooling fan and not subject to the internal temperature rise. Continuous telex operation is possible with the high rated power. Distress frequencies for telephony and telegraphy are as below. For other traffic frequencies, refer to Appendix. Telephony SSBDSCTelex (kHz, Carrier) (kHz, Center) (kHz, Center) 2 182 2 187.5 2 174.5 4 125 4 207.5 4 177.5 6 215 6 312 6 268 8 291 8 414.5 8 376.5 12 290 12 577 12 520 16 420 16 804.5 16 695 -2.1 2.2 Intercom The intercom provides communications between the FS-1562 and the RB-500 Remote Station (option). They must be wire-connected. When intercom mode is in use, there is no radio transmission. Calling RB-500 1. Press the [0] INTERCOM key. “COM” appears on the FS-1562 display panel. 2. Press [1]*, [ENT] keys. Calling beeps on the FS-1562 sound. The buzzer stops when the handset of the RB-500 is picked up. * Designated number of the RB-500 if more than one is installed. 3. Press the PTT switch to talk. Release the switch to listen. Call from RB-500 When the FS-1562 is called from the RB-500, the FS-1562 releases a beep. Press the [ENT] key to silence the buzzer. Press the PTT switch to talk. Release the switch to listen. Terminating the intercom Press the [0] INTERCOM key to terminate intercom function. “COM” disappears. 2.3 Remote Station Priority: The Remote Station usually has higher ...
Эта инструкция также подходит к моделям:Проводные телефоны - FS-1562-25 (411.51 kb)