User manual ICOM IC-R8500

[. . . ] INSTRUCTION MANUAL COMMUNICATIONS RECEIVER iC- r8500 IMPORTANT READ THIS INSTRUCTION MANUAL CAREFULLY before attempting to operate the receiver. EXPLICIT DEFINITIONS DEFINITION Personal injury, fire hazard or electric RWARNING shock may occur. CAUTION NOTE Equipment damage may occur. No risk of personal injury, fire or electric shock. This instruction manual contains important safety and operating instructions for the IC-R8500. Versions of the IC-R8500 which display the "CE" symbol on the serial number seal, comply with the essential requirements of the European Radio and Telecommunication Terminal Directive 1999/5/EC, and that any applicable Essential Test Suite measurements have been performed. PRECAUTIONS RINDOOR USE ONLY! [. . . ] When eliminating interference with the IF shift function, the audio characteristics of the received signal are often changed. Use the BFO adjustment function to adjust the audio quality of the received signal to that desired. q Push [SSB/CW] to select SSB or CW mode. to activate the function. · BFO appears. BFO 0. 00kHz [SSB/CW] switch SCAN SET e Rotate [M-CH] to adjust the BFO. · ­1. 2 kHz to +1. 2 kHz are selectable. BFO shift can be set for USB, LSB and CW separately. [M-CH] selector D AGC function AGC stands for automatic gain control. This function controls receiver gain to produce a constant audio output level even when the received signal strength is varied by fading, etc. Use AGC slow for normal phone operation; AGC fast for receiving data and searching for signals. AGC time constant cannot be changed in FM and WFM modes. Push [AGC] to toggle between AGC fast and slow. · AGC-F appears when AGC fast is selected; no indicator appears when AGC slow is selected. AGC-F RECV ICOM- [AGC] switch SCAN SET 15 RECEIVE FUNCTIONS 4 I Data communications D Connections · For high speed data (9600 bps) reception in FM mode [Audio IN] or [Detector IN] Rear panel to [AGC] RCA plug TU or TNC Personal computer · To use the [AGC] socket for AF output Change the internal jumper plug as illustrated at right. · The output is obtained for FM mode only. 37 for a description of opening the case. AGC output (default) AF direct detector output 200 mVrms/4. 7 k · For regular speed data (1200 bps or lower) reception in any mode SCAN SET AF IN to [REC OUT] 2-conductor 3. 5(d) plugs to [REC REMOTE] SQUELCH IN TU or TNC Personal computer D Receiving method q Connect a terminal unit as above. w Select FM mode (or USB, CW modes for HF band data communications). e Set the receiver to the desired frequency as below. r Set the connected terminal unit to the appropriate settings. · Refer to the terminal unit's instructions. Frequency settings depend on the mode used. FM mode: [Setting frequency(displayed freq. )]=[Desired freq. ] USB mode: [Setting frequency(displayed freq. )]=[Desired freq. ]­[Center of Mark and Space freq. ] CW narrow mode: [Setting frequency(displayed freq. )]=[Desired freq. ]­[Center of Mark and Space freq. ]+ [600 Hz] LSB mode (for amateur RTTY): [Setting frequency(displayed freq. )]=[Desired freq. ] + [Mark freq. ] 16 5 MEMORY CHANNELS I General The IC-R8500 has 1000 regular memory channels, plus 20 programmable scan edge channels and 1 priority channel. 8-digit memory names are programmed into all 1000 channels and 5-digit bank names are programmed into 20 user banks for convenient recall and organisation of frequencies. Moreover, memory channels can store mode information, a tuning step, and ATT (attenuation) information. NOTE: When memory channels without information (blank channels) are selected, the frequency is not displayed. The table below gives a general overview of the IC-R8500's memory channels. BANK INITIAL CONTENTS 40 memories × 20 banks USAGE For normal use. Frequency, mode, tuning step, name and ATT information can be programmed. The number of channels in each bank is user-assignable. Banks cannot be deleted (they must contain at least 1 channel). Frequencies detected during auto memory write scan are memorised into this bank in sequence. [. . . ] 14 Programmed scan and auto memory write scan does not function. Memory scan does not function. · Reprogram different frequencies into p. 27 scan edge channels or select a different programmed scan group. SCAN · All channels are specified as "SKIP" · Turn OFF the automatic skip function or pgs. release the "SKIP" setting for 2 or more 25, 26 channels in the selected bank. [. . . ]