![Icom IC-M710RT [14/32] I functions for receive](/img/pdf.png)
Icom IC-M710RT [14/32] I functions for receive
![Icom IC-M710RT [14/32] I functions for receive](/views2/1074674/page14/bge.png)
10
4
RECEIVE AND TRANSMIT
■ Functions for receive
D Squelch function
The squelch function detects signals with voice com-
ponents and squelches (mutes) unwanted signals
such as unmodulated beat signals. This provides
quiet standby.
When you need to receive weak signals, the squelch
should be turned off.
Push [SQL] to toggle the function on and off.
•“SQL” appears when the squelch function is turned on.
DUP
TX
RX
DSC
F
SQL
AGC
ALM
D Noise blanker
The noise blanker function reduces pulse type noise
such as that coming from engine ignitions.
The noise blanker may distort reception of strong sig-
nals. In such cases, the noise blanker should be
turned off.
Push [NB] to toggle the function on and off.
•“NB” appears when the noise blanker function is turned
on.
DUP
TX
RX
DSC
F
NB
AGC
ALM
D AGC off function
The receiver gain is automatically adjusted according
to received signal strength with the AGC (Automatic
Gain Control) function to prevent distortion from
strong signals and to obtain a constant output level.
When receiving weak signals with adjacent strong
signals or noise, the AGC function may reduce the
sensitivity. In this situation, the AGC function should
be deactivated.
Push [AGC] to toggle the function on and off.
•“ê” appears when the AGC function is deactivated.
TX
RX
DSC
F
AGC
AG
AG
C
ALM
D RF gain setting
The receiver gain can be reduced with the RF gain
setting. This may help to remove undesired weak sig-
nals while monitoring strong signals.
Usually, the AGC function reduces the RF gain ac-
cording to the receive signal strength and these weak
signals are remove. However, during no signal recep-
tion, these weak signals may not be heard.
In such cases, the RF gain may be useful for setting a
minimum level at which to hear signals.
➀ Push [FUNC] then [RX] to call up the following dis-
play.
➁ Rotate the [CHANNEL] selector to set the desired
minimum cutting level.
•“0” to “9” are available.
• S-meter shows the minimum permitted level.
➂ Push [FUNC] or [CE] to exit the RF gain display.
TX
RX
DSC
F
AGC
ALM
D Clarity control
Voice signals received from other stations may be dif-
ficult to receive. This may sometimes happen if a sta-
tion is transmitting slightly off frequency. In such
cases, compensate the receive frequency only, using
the [CLARITY] control.
Adjust [CLARITY] to improve the audio signal.
[CLARITY]
IC-M710RT.qxd 02.1.9 9:03 Page 10
Содержание
- Im710rt 1
- Explicit definitions 2
- Important 2
- Precautions 2
- R warning 2
- In case of emergency for maritime operation 3
- Using 2182 khz with voice 3
- Using digital selective calling 3
- Versions 3
- When a potential problem exists 3
- When immediate help is needed 3
- Table of contents 4
- Call procedures 5
- Operating rules and guidelines 5
- Priorities 5
- Privacy 5
- Radio licenses 5
- I front panel controller 6
- Panel description 6
- D hm 120 microphone keys 8
- I main unit controller detached 8
- Dsc f scan sql n b agc agc 9
- Dup simp 9
- I display 9
- I selecting a channel 10
- Selecting a channel frequency 10
- D using scan functions 11
- D using the keypad 11
- Caution 12
- D using the channel selector 12
- D using the keypad 12
- I selecting a frequency 12
- I basic voice receive and transmit 13
- I functions for transmit 13
- Receive and transmit 13
- D agc off function 14
- D clarity control 14
- D noise blanker 14
- D rf gain setting 14
- D squelch function 14
- I functions for receive 14
- Cross channel operation example 15
- Cw key connection 15
- Fsk terminal unit connection 15
- I cross channel operation 15
- I cw operation 15
- I fsk operation 15
- I programming a frequency 16
- User channel programming 16
- I set mode contents 17
- I set mode operation 17
- Set mode 17
- 4 scan type selection scan type only this item selects one of the following scan functions 18
- 5 scan speed this item adjusts the scan speed rate at which chan nels are searched the scan speed can be set from 1 to 10 with 1 being the fastest and 10 being the slowest 18
- 6 channel name and frequency the lower half of the display can be set to display a programmable channel name or a receive frequency according to operator needs 18
- 7 cw fsk narrow filter this item selects the passband width for a1a cw fsk or j2b mode 18
- 8 fsk shift frequency several shift frequencies the difference between the mark and space frequency are used for fsk opera tion this item allows you to select a shift frequency for almost any fsk system 18
- Channel resume scan scan operates over the fre quency range optional 18
- Channel resume scan scan pauses when squelch opens then resumes after 10 sec 18
- Channel scan and channel resume scan search 5 channels around a user selected channel or search all itu channels in the band when an itu channel is selected 18
- Channel scan scan is canceled when transmitting default 18
- Default 4 18
- Fastest scan speed 18
- Hz 6 db gmdss 18
- Note when on is selected without optional fil ter installation the marine and general versions do not function in these modes the gmdss ver sions can use on as standard 18
- Passband 2 khz 6 db default 18
- Passband 500 hz 6 db 18
- Programmed scan optional searches signals within the frequency range and activates slowly while squelch is open and fast while squelch is closed 18
- Set mode 18
- Shift frequency 170 hz default 18
- Shift frequency 425 hz 18
- Shift frequency 850 hz 18
- Slowest scan speed 18
- Connections and installation 20
- I attaching 1 remote controller 20
- I supplied accessories 20
- Connections and installation 21
- D intercom operation 21
- D set id number 21
- I attaching 2 remote controllers 21
- Push and hold the ptt switch on the microphone and speak into the microphone at a normal voice level 21
- Push func and then push speaker to turn the intercom function on 21
- Push func to end intercom operation 21
- Push power turn the power off 21
- Rotate the channel selector to select the desired unit id number if desired 21
- The id numbers for each remote controller must be set properly for the intercom function to operate see right 21
- The intercom function allows you to communicate be tween two remote controllers 21
- While pushing func push power 21
- Caution 22
- I attaching 2 remote controllers and a pc 22
- I notes for remote control 22
- Caution 23
- I connections on rear panel 23
- Acc 1 pin pin name description specifications 24
- Acc 2 acc pin pin name description specifications 24
- Connections and installation 24
- I connector information 24
- Microphone pin pin name description specifications 24
- Tuner pin pin name description specifications 24
- Connections and installation 25
- Dc 13 v pin pin name description specifications 25
- Dsc pin pin name description specifications 25
- Mod af pin pin name description specifications 25
- Remote pin pin name description specifications 25
- I ground connection 26
- I power source 26
- At 130 e 27
- Coaxial cable 27
- Connections and installation 27
- Control cable sold separately an optional opc 566 is available 27
- D at 130 at 130e automatic antenna tuner 27
- D mn 100 mn 100l antenna matchers 27
- D non icom tuner 27
- I antenna 27
- Ic m710rt 27
- Most stations operate with a whip or long wire insu lated backstay antenna however these antennas cannot be connected directly to the transceiver since their impedance may not be matched with the trans ceiver antenna connector 27
- Some non icom tuners may be used with the ic m please consult your dealer or marina if you wish to connect one the following internal settings may be required for connection 27
- To antenna element 27
- With a 50 ω matched antenna all marine bands can not be used the following antenna matcher or an tenna tuner may be helpful for antenna installation 27
- Check the installation angle the display may not be easy to read at some angles 28
- Connections and installation 28
- D mounting location 28
- D mounting the controller main body 28
- D transceiver dimensions 28
- I mounting 28
- Select a location that provides easy access to the front panel for navigation safety has good ventilation and is not subject to sea spray the controller should be at 90 degrees to your line of sight when operating it 28
- U caution keep the transceiver and microphone at least 1 meter away from your vessel s magnetic nav igation compass 28
- D installing an optional filter and alarm unit 29
- D opening the case 29
- I fuse replacement 29
- I installing internal options 29
- Possible cause 30
- Power transmit display receive 30
- Problem 30
- Solution 30
- Troubleshooting 30
- What appears to be equipment malfunction may not be damaging or difficult to solve check the following chart before making any adjustments or sending the trans ceiver to an icom service center 30
- General 31
- I options 31
- I specifications 31
- Options and specifications 31
- Receiver 31
- Transmitter 31
- 1 32 kamiminami hirano ku osaka 547 0003 japan 32
- A 5504h 1ex q printed in japan 1998 icom inc 32
- Count on us 32
- Ic m710rt qxd 02 9 03 page 28 32
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