10 CONTROL COMMANDS
The
from the PC and/or transfer data from the receiver to the PC.
■Command table
Operation | Cn | Sc | Remark | |
Reading freq. edges | 02 | — |
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Reading operating freq. | 03 | — |
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Reading operating mode | 04 | — |
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Reading | 1A | 01 | add bn+mc* | |
Reading bank name | 1A | 03 | add bn* | |
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Reading squelch condition | 15 | 01 |
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Reading |
| 02 |
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Reading model ID |
| 19 | 00 |
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Set frequency |
| 05 |
| add fd* |
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| LSB |
| 0001 |
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| USB |
| 0101 |
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| AM |
| 0202 |
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| AM narrow |
| 0201 |
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Set operating | AM wide | 06 | 0203 |
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mode | CW | 0301 |
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| CW narrow |
| 0302 |
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| FM |
| 0501 |
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| FM narrow |
| 0502 |
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| WFM |
| 0601 |
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Memory channel selection | 08 | — | mc* | |
Bank selection |
| 08 | A0 | bn* |
Memory write |
| 09 | — |
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Set | 1A | 00 | add dt* | |
Set bank name |
| 1A | 02 | add bn+nd* |
Memory clear |
| 0B | — |
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Stop scan |
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| 00 |
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Programmed scan start |
| 02 | note 1 | |
Auto memory write scan start |
| 04 | note 1 | |
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Memory scan start |
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| 22 | note 2 |
Select memory scan start |
| 23 | note 2 | |
Mode select scan start |
| 24 | note 2 | |
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Priority scan |
| 0E | 42 |
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| B0 |
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| B1 |
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VSC deactivation |
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| C0 |
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VSC activation |
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| C1 |
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Scan resume selection “∞ ” |
| D0 |
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Scan resume selection “OFF” |
| D1 |
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Scan resume selection “DLY” |
| D3 |
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■Data format
• Basic format from PC to IC-R8500
FE FE 4A E0 Cn Sc Data area (e.g. fd) FD
Operation | Cn | Sc | Remark | |
| 10 Hz |
| 00 |
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| 50 Hz |
| 01 |
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| 100 Hz |
| 02 |
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| 1 kHz |
| 03 |
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| 2.5 kHz |
| 04 |
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| 5 kHz |
| 05 |
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Tuning step | 9 kHz | 10 | 06 |
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10 kHz | 07 |
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| 12.5 kHz |
| 08 |
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| 20 kHz |
| 09 |
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| 25 kHz |
| 10 |
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| 100 kHz |
| 11 |
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| 1 MHz |
| 12 |
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| programmable |
| 13 |
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| OFF |
| 00 |
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Attenuator | 10 dB | 11 | 10 |
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20 dB | 20 |
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| 30 dB |
| 30 |
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Voice | frequency | 13 | 00 |
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synthesizer |
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AF gain setting |
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| 01 | add gd* |
Squelch level setting | 14 | 03 | add gd* | |
IF shift setting |
| 04 | add gd* | |
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APF control setting |
| 05 | add gd* | |
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| AGC OFF |
| 10 |
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| AGC ON |
| 11 |
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Memory clear | NB OFF | 16 | 20 |
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NB ON | 21 |
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| APF OFF |
| 30 |
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| APF ON |
| 31 |
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Power OFF (activating sleep) | 18 | 00 |
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Power ON (from sleep active) | 01 |
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Note 1: Only scan group 0 is usable.
Note 2: Use these commands after sending a bank or mode command.
• Answer from IC-R8500 to PC
FE FE E0 4A Cn Sc Data area (e.g. fd) FD |
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Preamble code (fixed) |
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| Command number | ||||
PC’s address |
(see table) Sub command number (see table) | BCD code area |
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| (‘REMARK’ in table) | End of message code | |
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| Sub command number |
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Preamble code (fixed) |
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| End of message code | ||||||
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| Command number |
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| BCD code area | |||||||||||
PC’s address |
35