Pre-release Information
Page 2
... the IC-7850 to change the operating frequency, tune the frequency, switch Fixed and Center mode, adjust the sweep speed and more. Spectrum waterfall Enhanced Mouse Operation for the Spectrum Scope Connect a mouse to the USB port to simultaneously "see" activity in both receive and transmit signals are reduced virtually below detection. ■ LO C/N Characteristics Comparisons 1st LO o 14.1MHz Brand A premium model Brand B premium model IC-7850...
... the IC-7850 to change the operating frequency, tune the frequency, switch Fixed and Center mode, adjust the sweep speed and more. Spectrum waterfall Enhanced Mouse Operation for the Spectrum Scope Connect a mouse to the USB port to simultaneously "see" activity in both receive and transmit signals are reduced virtually below detection. ■ LO C/N Characteristics Comparisons 1st LO o 14.1MHz Brand A premium model Brand B premium model IC-7850...
Instruction Manual
Page 4
... other audio accessories at high volume levels. Immediately turn over the transceiver. NEVER touch the transceiver top cover when transmitting continuously for transmitter circuits, such as small dark or light spots. iii This may overheat the transceiver. Always have different pin assignments, and connection to avoid inadvertent use extension cords. DO NOT use a linear amplifier, set the transceiver's RF output power to rain, snow or any problems caused...
... other audio accessories at high volume levels. Immediately turn over the transceiver. NEVER touch the transceiver top cover when transmitting continuously for transmitter circuits, such as small dark or light spots. iii This may overheat the transceiver. Always have different pin assignments, and connection to avoid inadvertent use extension cords. DO NOT use a linear amplifier, set the transceiver's RF output power to rain, snow or any problems caused...
Instruction Manual
Page 5
... radio/TV technician for help. ferent from Adobe Systems Incorporated's website. wwClick the desired button to operate this device must accept any interference received, including interference that may not cause harmful interference, and (2) this device under FCC regulations. Opens the Instruction manual (this manual • Schematic diagram Includes the schematic and block diagrams • Adobe® Reader® Installer Installer for the full operations, the same as this manual) Opens the Schematic diagram Installs...
... radio/TV technician for help. ferent from Adobe Systems Incorporated's website. wwClick the desired button to operate this device must accept any interference received, including interference that may not cause harmful interference, and (2) this device under FCC regulations. Opens the Instruction manual (this manual • Schematic diagram Includes the schematic and block diagrams • Adobe® Reader® Installer Installer for the full operations, the same as this manual) Opens the Schematic diagram Installs...
Instruction Manual
Page 15
... Frequency (approximate 16-4 ■■Setting My call sign 16-5 ■■Cleaning 16-7 ■■Resetting the CPU 16-7 ■■About protection indications 16-8 ■■Opening the transceiver's case 16-8 ■■Fuse replacement 16-9 ■■Clock backup battery replacement 16-9 ■■Troubleshooting 16-10 D Transceiver power 16-10 D Transmit and receive 16-10 D Scanning 16-11 D Display 16-11 UPDATING...
... Frequency (approximate 16-4 ■■Setting My call sign 16-5 ■■Cleaning 16-7 ■■Resetting the CPU 16-7 ■■About protection indications 16-8 ■■Opening the transceiver's case 16-8 ■■Fuse replacement 16-9 ■■Clock backup battery replacement 16-9 ■■Troubleshooting 16-10 D Transceiver power 16-10 D Transmit and receive 16-10 D Scanning 16-11 D Display 16-11 UPDATING...
Instruction Manual
Page 19
... functions regardless of the transceiver's information and data. • The indicator beside the slot lights, or blinks when reading from less than 5 watts (minimum) to 200* watts (maximum). *AM mode: less than 5 W to 50 W • The output power setting is displayed. @2 MIC GAIN CONTROL [MIC] Rotate to adjust microphone gain. • The transmit audio tone in the SSB, AM, or FM mode can monitor the receive signal during normal voice...
... functions regardless of the transceiver's information and data. • The indicator beside the slot lights, or blinks when reading from less than 5 watts (minimum) to 200* watts (maximum). *AM mode: less than 5 W to 50 W • The output power setting is displayed. @2 MIC GAIN CONTROL [MIC] Rotate to adjust microphone gain. • The transmit audio tone in the SSB, AM, or FM mode can monitor the receive signal during normal voice...
Instruction Manual
Page 29
... keyer with another Icom CI-V transceiver or receiver. @3 RECEIVE ANTENNA A OUT [RX ANT A- cuit and the receiver's RF stage in the Sub band (Main band in the Keyer set screen. (p. 5-13) @1 METER JACK [METER] (p. 20-5) Outputs the received signal strength, transmit out- IN] Located between the transmit/receive switching cir- IN] and [RX ANT B- Connected in parallel with 13.8 V outputs of the transceiver. ➥➥Used for transceive operation with 1⁄...
... keyer with another Icom CI-V transceiver or receiver. @3 RECEIVE ANTENNA A OUT [RX ANT A- cuit and the receiver's RF stage in the Sub band (Main band in the Keyer set screen. (p. 5-13) @1 METER JACK [METER] (p. 20-5) Outputs the received signal strength, transmit out- IN] Located between the transmit/receive switching cir- IN] and [RX ANT B- Connected in parallel with 13.8 V outputs of the transceiver. ➥➥Used for transceive operation with 1⁄...
Instruction Manual
Page 31
... the transceiver through the LAN connector. (An optional RS-BA1 is as a Select memory channel. The desired memory channels can be assigned to 3 select groups, for the Digital multi-function me- signed as - ter, Spectrum scope, Audio scope, Voice recorder, Memory channel, Scan, Memory keyer, RTTY decoder, PSK decoder, IF filter selection, and Set modes. !6 DISPLAY FUNCTION KEY GUIDE Indicates...
... the transceiver through the LAN connector. (An optional RS-BA1 is as a Select memory channel. The desired memory channels can be assigned to 3 select groups, for the Digital multi-function me- signed as - ter, Spectrum scope, Audio scope, Voice recorder, Memory channel, Scan, Memory keyer, RTTY decoder, PSK decoder, IF filter selection, and Set modes. !6 DISPLAY FUNCTION KEY GUIDE Indicates...
Instruction Manual
Page 51
...INSTALLATION AND CONNECTIONS ■ Unpacking After unpacking, immediately report any damage to a long earth-sunk copper rod. For a description and a diagram of accessory equipment included with the IC-7850, see 'Supplied accessories' on page vii of the place or damage the connectors on the rear panel. Make...adequate air circulation, free from extreme heat, cold, or vibrations, and away from each side of the front panel and the one screw from TV sets, TV antenna elements, radios and other problems, ground the transceiver through the GROUND terminal on the transceiver's rear panel. ...
...INSTALLATION AND CONNECTIONS ■ Unpacking After unpacking, immediately report any damage to a long earth-sunk copper rod. For a description and a diagram of accessory equipment included with the IC-7850, see 'Supplied accessories' on page vii of the place or damage the connectors on the rear panel. Make...adequate air circulation, free from extreme heat, cold, or vibrations, and away from each side of the front panel and the one screw from TV sets, TV antenna elements, radios and other problems, ground the transceiver through the GROUND terminal on the transceiver's rear panel. ...
Instruction Manual
Page 79
... turn the Auto or Manual notch function ON or OFF. • Rotate the [NOTCH] control to adjust the threshold level. • The Noise blanker indicator (above the [NR] key) lights when the Noise reduction is ON. The Manual notch can be set the attenuator in Section 6: Scope operation, Section 7: Functions for Receive, or Section 8: Functions for 1 second to set to attenuate a frequency...
... turn the Auto or Manual notch function ON or OFF. • Rotate the [NOTCH] control to adjust the threshold level. • The Noise blanker indicator (above the [NR] key) lights when the Noise reduction is ON. The Manual notch can be set the attenuator in Section 6: Scope operation, Section 7: Functions for Receive, or Section 8: Functions for 1 second to set to attenuate a frequency...
Instruction Manual
Page 80
...; Push [VOX/BK-IN] several times to turn the Speech compressor ON or OFF. Audio tone control (p. 15-4) You can adjust the transmit voice characteristics (Bass or Treble). SSB mode Speech compressor (p. 8-6) The speech compressor increases average RF output power, improving signal strength and readability. ➥➥Push the Multi-function [COMP]() key to monitor your voice. The IC-7850 is...
...; Push [VOX/BK-IN] several times to turn the Speech compressor ON or OFF. Audio tone control (p. 15-4) You can adjust the transmit voice characteristics (Bass or Treble). SSB mode Speech compressor (p. 8-6) The speech compressor increases average RF output power, improving signal strength and readability. ➥➥Push the Multi-function [COMP]() key to monitor your voice. The IC-7850 is...
Instruction Manual
Page 82
... to adjust the output power. • The TX power readout displays the setting level. Previous view 5 RECEIVE AND TRANSMIT ■■Operating CW Before transmitting, monitor your selected operating frequency to make sure you don't cause interference to other stations on the Rear panel). wwPush the Mode key [CW] to select the CW mode. • "CW" or "CW-R" is displayed. • Push [CW] again to select the desired band...
... to adjust the output power. • The TX power readout displays the setting level. Previous view 5 RECEIVE AND TRANSMIT ■■Operating CW Before transmitting, monitor your selected operating frequency to make sure you don't cause interference to other stations on the Rear panel). wwPush the Mode key [CW] to select the CW mode. • "CW" or "CW-R" is displayed. • Push [CW] again to select the desired band...
Instruction Manual
Page 84
... your transmit frequency exactly to practice CW sending. The CW side tone level can also use CW-R to reduce the interference. ➥ In the CW mode, push [CW] to receive CW signals. You can be sure to turn OFF break-in function is set mode (p. 15-5). (SET [F-7] > LEVEL [F-1] > Side Tone Level) 5-7 This allows you can confirm the adjusted speed by matching the audio tone. Push BFO Interference...
... your transmit frequency exactly to practice CW sending. The CW side tone level can also use CW-R to reduce the interference. ➥ In the CW mode, push [CW] to receive CW signals. You can be sure to turn OFF break-in function is set mode (p. 15-5). (SET [F-7] > LEVEL [F-1] > Side Tone Level) 5-7 This allows you can confirm the adjusted speed by matching the audio tone. Push BFO Interference...
Instruction Manual
Page 91
... lights red. uuPush [F12] on the keyboard to receive. [RF PWR] TX indicator MAIN Band keys () Multi-function keys Mode keys • Waterfall display [MAIN DIAL] FFT Scope 2125/170 1560 2860 Waterfall Mode icon 4 For your RTTY terminal, consult the equipment manual. ten contents. • The color of [F1]-[F8] to adjust the output power. • The TX power...
... lights red. uuPush [F12] on the keyboard to receive. [RF PWR] TX indicator MAIN Band keys () Multi-function keys Mode keys • Waterfall display [MAIN DIAL] FFT Scope 2125/170 1560 2860 Waterfall Mode icon 4 For your RTTY terminal, consult the equipment manual. ten contents. • The color of [F1]-[F8] to adjust the output power. • The TX power...
Instruction Manual
Page 96
...displayed. Keys Input mode/Action [ABC]() Selects the Upper case letters alphabet input mode. • Push to toggle between the Name (Title) and Content items. • When a keyboard is 70 characters per memory channel. • Programming contents qqDisplay... RT8 EQUIP. Previous view 5 RECEIVE AND TRANSMIT DDEditing the RTTY memory The contents of the memory is connected to the [USB A] port on the rear panel, you can directly enter the Names or contents using the Memory edit menu. INTERNAL FSK UNIT & DEMODULATOR OF THE IC-7850. ↵ • Selectable ...
...displayed. Keys Input mode/Action [ABC]() Selects the Upper case letters alphabet input mode. • Push to toggle between the Name (Title) and Content items. • When a keyboard is 70 characters per memory channel. • Programming contents qqDisplay... RT8 EQUIP. Previous view 5 RECEIVE AND TRANSMIT DDEditing the RTTY memory The contents of the memory is connected to the [USB A] port on the rear panel, you can directly enter the Names or contents using the Memory edit menu. INTERNAL FSK UNIT & DEMODULATOR OF THE IC-7850. ↵ • Selectable ...
Instruction Manual
Page 101
... [RTTY/PSK] to adjust the output power. • The TX power readout displays the setting level. r R otate [MAIN DIAL] to transmit. • The [TX] indicator lights red. uuPush [F12] on page 5-25. • The radiated lines in the vector tuning indicator may be transmitted. See pages 3-6 and 15-16 for 1 second to receive. [RF PWR] TX indicator MAIN Band keys (...
... [RTTY/PSK] to adjust the output power. • The TX power readout displays the setting level. r R otate [MAIN DIAL] to transmit. • The [TX] indicator lights red. uuPush [F12] on page 5-25. • The radiated lines in the vector tuning indicator may be transmitted. See pages 3-6 and 15-16 for 1 second to receive. [RF PWR] TX indicator MAIN Band keys (...
Instruction Manual
Page 108
...displayed. The memory can be set using the keyboard. • Push keypad to enter 0 ~ 9 or a period (.). DECODE [F-3] TX MEM [F-4] • The PSK memory screen is 70 characters per memory channel. • Programming contents qqDisplay the PSK decode screen, then push [TX MEM](F). ttPush [t](F) or [u](F) to select the character. Previous view 5 RECEIVE AND TRANSMIT... DE Icom Icom Icom K↵ PT7 RIG&ANT PT8 EQUIP. ↵My transceiver is IC-7850 & Antenna is a 3-element triband yagi.↵ ↵My PSK equipment is displayed. eePush [PT1..PT8](F) several times. ...
...displayed. The memory can be set using the keyboard. • Push keypad to enter 0 ~ 9 or a period (.). DECODE [F-3] TX MEM [F-4] • The PSK memory screen is 70 characters per memory channel. • Programming contents qqDisplay the PSK decode screen, then push [TX MEM](F). ttPush [t](F) or [u](F) to select the character. Previous view 5 RECEIVE AND TRANSMIT... DE Icom Icom Icom K↵ PT7 RIG&ANT PT8 EQUIP. ↵My transceiver is IC-7850 & Antenna is a 3-element triband yagi.↵ ↵My PSK equipment is displayed. eePush [PT1..PT8](F) several times. ...
Instruction Manual
Page 117
... adjust the output power. • The TX power readout displays the setting level. ttPush the Multi-function [METER]() key to turn ON the data mode. • In the data mode, hold down [DATA] for critical tuning. Before transmitting, monitor the operating frequency to make sure transmitting won't cause interference to other stations on the same frequency. ❍ C onnect a PC or other device to the transceiver. (p. 3-8) qqPush a band...
... adjust the output power. • The TX power readout displays the setting level. ttPush the Multi-function [METER]() key to turn ON the data mode. • In the data mode, hold down [DATA] for critical tuning. Before transmitting, monitor the operating frequency to make sure transmitting won't cause interference to other stations on the same frequency. ❍ C onnect a PC or other device to the transceiver. (p. 3-8) qqPush a band...
Instruction Manual
Page 146
... selecting, the filter width value is displayed for 1 second to toggle the manual notch filter width between "WIDE," "MID," and "NAR." Previous view 7 FUNCTIONS FOR RECEIVE ■■Notch function The IC-7850 has Auto and Manual notch functions. • Auto notch: Used in the SSB, AM, or FM mode • Manual notch: Used in the SSB, CW, RTTY, PSK...
... selecting, the filter width value is displayed for 1 second to toggle the manual notch filter width between "WIDE," "MID," and "NAR." Previous view 7 FUNCTIONS FOR RECEIVE ■■Notch function The IC-7850 has Auto and Manual notch functions. • Auto notch: Used in the SSB, AM, or FM mode • Manual notch: Used in the SSB, CW, RTTY, PSK...
Instruction Manual
Page 241
...; Set the frequency to locate the cause of a problem or solve it through the use of an external unit, if connected. only strong signals are not equipment malfunctions. band. p. 4-14 • Set [MIC] to a suitable position. the speaker. • The squelch is closed. • The transceiver is selected. • Select a suitable operating mode. p. 7-2 Received audio is unclear • The operating mode is transmitting. • Rotate [AF] clockwise to turn...
...; Set the frequency to locate the cause of a problem or solve it through the use of an external unit, if connected. only strong signals are not equipment malfunctions. band. p. 4-14 • Set [MIC] to a suitable position. the speaker. • The squelch is closed. • The transceiver is selected. • Select a suitable operating mode. p. 7-2 Received audio is unclear • The operating mode is transmitting. • Rotate [AF] clockwise to turn...
Instruction Manual
Page 242
not stop. • Set [SQL] to turn the function OFF. D Display PROBLEM POSSIBLE CAUSE The displayed frequency • The dial lock function is selected. • The internal CPU has malfunctioned. does not properly change. • A set mode screen is activated. SOLUTION REF. • Push [LOCK] to the threshold point. start . Select channels for the scan. p. 4-12 • Push [EXIT/SET] several times to exit the Set p. 15-2 mode screen...
not stop. • Set [SQL] to turn the function OFF. D Display PROBLEM POSSIBLE CAUSE The displayed frequency • The dial lock function is selected. • The internal CPU has malfunctioned. does not properly change. • A set mode screen is activated. SOLUTION REF. • Push [LOCK] to the threshold point. start . Select channels for the scan. p. 4-12 • Push [EXIT/SET] several times to exit the Set p. 15-2 mode screen...