ICOM orporated 317600 VHF P25 Trunking Mobile Transceiver User Manual RMK 4 Instruction Manual
ICOM Incorporated VHF P25 Trunking Mobile Transceiver RMK 4 Instruction Manual
Contents
- 1. User Manual
 - 2. User Manual 1
 - 3. User Manual 2
 
User Manual 2

INSTRUCTION MANUAL
RMK-4
SEPARATION KIT

i
FOREWORD
Thank you for purchasing the RMK-4 separation kit.
The RMK-4 allows you to connect the additional CONTROL 
HEAD  to  the  IC-F9511HT  to  enable  dual-head  operation. 
Depending on the length of separation you need, use either 
the optional OPC-607, OPC-608, OPC-609 or OPC-726 sep-
aration cable with the RMK-4.
EXPLICIT DEFINITIONS
WORD DEFINITION
RWARNING Personal  injury,  fire  hazard  or  electric 
shock may occur.
CAUTION Equipment damage may occur.
NOTE
If disregarded, inconvenience only. No risk 
of personal injury, fire or electric shock.
Please refer to the instruction manual of the transceiver 
for details of the basic operation.
PRECAUTIONS
RWARNING!  NEVER  place  the  transceiver’s  main  unit 
(with the RMK-4) and CONTROL HEADs where normal operation of 
the vehicle may be hindered or where they could cause bodily injury.
CAUTION!  To  avoid  damage  to  the  transceiver,  turn  the 
power OFF and disconnect the DC power cable from the trans-
ceiver’s main unit before disassemble the transceiver.
DO  NOT  use  or  place the transceiver’s  main  unit  (with  the 
RMK-4)  and  CONTROL  HEADs  in  areas  with  temperatures 
below –30°C (–22°F) or above +60°C (+140°F).
DO  NOT  use  chemical  agents  such  as  benzine  or  alcohol 
when cleaning, as they can damage the RMK-4 and CONTROL 
HEAD’s surfaces.
USE the specified microphone only. Other  microphones have 
different pin assignments and may damage CONTROL HEAD or 
the transceiver’s main unit.
KEEP the transceiver’s main unit (with the RMK-4) and CON-
TROL HEADs away from heavy rain, and never immerse them 
in the water.
The  transceiver’s  main  unit  (with  the  RMK-4)  and  CONTROL 
HEADs meet IP54 requirements  for dust-protection  and splash 
resistance when the optional microphone*, the front/rear plate(s) 
and the speaker jack cover of CONTROL HEAD are attached.
However, if these items are dropped, dust-protection and splash 
resistance cannot be guaranteed because of possible damage to 
the cases or the waterproof seals.
* The microphone is not dust-protection and splash resistant.
Icom, Icom Inc. and the Icom logo are registered trademarks of Icom Incor-
porated (Japan) in Japan, the United States, the United Kingdom, Germany, 
France, Spain, Russia and/or other countries.
All other products or brands are registered trademarks or trademarks of their 
respective holders.

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KEY-STICKER
Second CONTROL HEAD
RMK-4 (Main unit attachment)
Microphone hanger 
and screw set
Mounting bracket
for CONTROL HEAD Flat washers 
(M5)
Spring
washers (M5)
Mounting screws 
(M5×12)
Self-tapping screws 
(M5×16)
Bracket screws
Nuts (M5)
Key caps
Function name
stickers
•  Used  for  labelling 
the programmable 
function keys. See 
at right for details.
The serial number seal is put 
here, and labeled “RMK-4.”
• Function name stickers
There are no labels on the programmable function keys since 
the functions can be freely assigned to these keys.
Attach the supplied function name stickers to the appropriate 
keys  for easy  recognition  of  the  key’s  assigned  function  as 
shown below.
Then, protect the attached stickers from coming off with the 
supplied key cap, as shown below.
Function name sticker
Key cap
ACCESSORIES

TABLE OF CONTENTS
iii
FOREWORD ......................................................................... i
EXPLICIT DEFINITIONS ....................................................... i
PRECAUTIONS ..................................................................... i
ACCESSORIES .................................................................... ii
TABLE OF CONTENTS ....................................................... iii
1  CONNECTION .............................................................1−5
 ■  Removing the transceiver’s main unit attachment ........1
 ■ Connecting CONTROL HEAD and RMK-4 ..................2
 ■  Attaching the RMK-4 ....................................................4
 ■ Mounting ......................................................................4
2  REMOTE BOX SET MODE .........................................6−8
 ■ Set mode items ............................................................6
3  DUAL-HEAD OPERATION ........................................9−10
 ■ Intercom function ..........................................................9
 ■ TX AF Monitoring function ..........................................10
 ■ NOTES .......................................................................10
4  OPTIONS .......................................................................11

q  Turn the power OFF, then disconnect the DC power cable 
from the transceiver’s main unit.
w  Unscrew the 6 top screws, then remove the top cover from 
the transceiver’s main unit in the direction of the arrow.
Top cover
Main unit
e  Unscrew the screw that is attached to the chassis.
Front
r  
Unscrew  the  4  front  screws,  then  remove  the  main  unit 
attachment from the main unit in the direction of the arrow.
  • 
 The flat cable should be carefully disconnected from the attachment.
Main unit attachment
Main unit attachment
Flat cable
t   
Unscrew the 4 screws, then remove the front plate from the 
main unit attachment. Then unscrew the circuit board screw, 
and disconnect the separation cable, if it is connected.
Main unit
attachment
Separation cable
Front plate
Remove the circuit 
board screw.
 IMPORTANT: Set the top, chassis and front screws aside 
as they are needed for the RMK-4 installation.
1
1
CONNECTION
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■  Removing the transceiver’s main unit attachment

Either the  optional OPC-607  (3 m; 9.84  ft), OPC-608  (8 m; 
26.3 ft), OPC-609 (1.9 m; 6.3 ft) or  OPC-726  (5  m;  16.4  ft) 
separation cable is required for CONTROL HEADs and the 
RMK-4 connections.
INFORMATION:  CONTROL  HEAD  connected  to  the 
[CONTROL HEAD 1] of the RMK-4, is recognized as the 
main CONTROL HEAD.
D CONTROL HEAD
You can connect the separation cable to both CONTROL 
HEADs in the same way, as shown below.
q   Unscrew the 4 screws, then remove the rear plate from 
CONTROL HEAD.
CONTROL HEAD
Rear plate
Unscrew the circuit 
board screw.
w  Connect the separation cable to CONTROL HEAD.
  •  The cable can be inserted into either the left or right grooves as 
needed.
Separation
cable
Cable
groove
CONTROL HEAD
Reinstall the circuit board 
screw removed in step q 
as  shown  at  left  to  con-
nect the cable terminal.
Rear plate
e   After the cable is connected, reinstall the rear plate and 
the 4 screws, then connect the opposite side of the sepa-
ration cable to the RMK-4.
r  Repeat steps q  to e to attach the other CONTROL 
HEAD.
If the separation cable is already connected to the original 
CONTROL HEAD, the above connection should be per-
formed to the second CONTROL HEAD only.
2
1CONNECTION
■ Connecting CONTROL HEAD and RMK-4

3
1
CONNECTION
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D RMK-4
q   Unscrew the 4 screws, then remove the front plate from 
the 
RMK-4
.
RMK-4
Front plate
Unscrew the circuit 
board screw.
w   Connect the opposite side of the separation cable that is 
connected to CONTROL HEAD to the RMK-4. After the 
cable is connected, reinstall the front plate and the 4 screws.
  •  The cable can be inserted into either the left or right grooves as 
needed.
Separation
cable
Cable grooves
Reinstall the circuit board 
screw removed in step q 
as  shown  above  to  con-
nect the cable terminal.
e   Repeat steps q and w for the other 
side connection.

■  Attaching the RMK-4
q 
Carefully connect the flat cable of the transceiver’s main 
unit to the RMK-4 as shown below (q).
Then,  attach  the  RMK-4  to  the  transceiver’s  main  unit 
using 4 front screws that were removed from the main unit 
in step r in p. 1. (w)
  •  Ensure  the  flat  cable  and  the  RMK-4  are  connected/attached 
correctly, and not upside down.
w 
Replace the screw that was removed from the main unit in 
step e in p. 1 to the chassis. (e)
Main unit
RMK-4
RMK-4
w
e
Flat cable
q
e 
Replace the top cover and 6 top screws removed in step 
w in p. 1, then reconnect the DC power cable.
■ Mounting
2 types of mounting styles are available— one is on-board 
mounting, and the other one is overhead mounting.
D On-board mounting
Mount the controller securely with the 4 supplied screws to a 
solid surface.
Bracket
screw
4
1CONNECTION

D Overhead mounting
Mount the controller securely with the 4 supplied screws to 
a solid surface which can support more than 2 kg (4.40 lb). 
(Overhead mounting)
When using
self-tapping screws
Flat washer
Spring washer
Bracket
screw
Nut
5
1
CONNECTION
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16

The REMOTE BOX SET MODE is accessed at power ON 
and allows you to set seldom-changed settings. You can 
“customize” CONTROL HEADs for dual-head operation to 
suit your preferences and operating style.
P0 P4P3P2P1
*In this instruction manual, these keys are from 
the left, designated [P0]/[P1]/[P2]/[P3]/[P4].
D Set mode operation
q  First, be sure power is OFF. Then, while pushing and 
holding [P0], [P1] and [P2], push [   ] to turn the power 
ON.
  •  Hold [P0], [P1] and [P2] until “SET MODE FOR REMOTE BOX” 
appears on the display.
w  Push [P0] to enter the REMOTE BOX SET MODE.
e   Then push [P0] additional times to select the appropriate 
item. Then, push [Up] or [Down] to set the desired level 
and conditions.
r   Push and hold [   ]  to exit the REMOTE BOX SET 
MODE.
The USER SET MODE is also available. The common 
functions that can be used with both dual-head and sin-
gle-head operations are set in the USER SET MODE. 
Please refer to the instruction manual of the transceiver 
for details.
■ Set mode items
The following functions (other than “RX Speaker Tune”) can 
be programmed into CONTROL HEADs 1 and 2, individu-
ally.
D AF Minimum
Set the AF Minimum function to ON or OFF. (default: ON)
ON  :  The minimum audio output level is set for CONTROL 
HEADs.
      •  Set the minimum audio output level in “AF Minimum Level” 
as shown below.
OFF :  The minimum audio output level is not set for CON-
TROL HEADs.
D AF Minimum Level
Set the  minimum audio  output  level  between 0  and 255.  
(default: 0)
This setting is effective only when “AF Minimum” is ON as 
shown above.
D Beep Level
Set the output level of the confirmation beeps between 1 and 
5. (default: 3)
This setting is effective for dual-head operation functions only.
The beep level for other functions that can be used with both 
dual-head and single-head operations, are set in the USER 
SET MODE.
6
2REMOTE BOX SET MODE

D Panel Lock function
Set the Panel Lock function to ON or OFF. (default: ON)
The Panel Lock function locks all keys and the dial other than 
[   ] and [P4 (PANEL LOCK)].
ON  :  The [PANEL LOCK] function is assigned to [P4], and 
you can toggle the Panel Lock function ON and OFF 
with  pushing  and  holding  [P4  (PANEL  LOCK)]  for 
1 sec.
OFF :  [P4] retains the originally programmed function and the 
Panel Lock function is OFF.
NOTE: When this function is set to ON, the key function 
[Null] must be assigned to [P4] by the CS-F9010/F9510 
cloning software on both CONTROL HEADs for match-
ing the CONTROL HEAD’s performance. Ask your dealer 
for details.
D TX AF Monitoring function
Set the TX AF Monitoring function to ON or OFF. (default: ON)
This function allows the operator of  CONTROL HEAD  to 
monitor the other side’s communication.
When one CONTROL HEAD operator is communicating, the 
audio can be heard from the SP-22 external speaker on the 
other CONTROL HEAD side.
The optional SP-22 external speaker is required.
D Hanger function
Set the Hanger function to ON or OFF. (default: ON)
The microphone “on-hook” function (Hook-on scan) and “off-
hook” functions (Move to Priority A CH and Monitor) are acti-
vated according to this setting.
ON  :  The microphone “on-hook” or “off-hook” functions are 
activated when CONTROL HEAD’s microphone is put 
on (on hook) or taken off (off-hook) it's hanger hook.
OFF :  The microphone “on-hook” function is activated regard-
less of the CONTROL HEAD’s microphone “on-hook” 
and “off-hook”.
NOTE: If “ON” is set in both CONTROL HEADs and one of 
the two microphones is taken from its hanger hook, the 
microphone “off-hook” functions are  activated for  both 
CONTROL HEADs.
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REMOTE BOX SET MODE
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2REMOTE BOX SET MODE
D RX Speaker Tuning function
Set the RX Speaker Tuning function to ON or OFF for CON-
TROL HEAD 1 (main). (default: OFF)
This function allows the operator of CONTROL HEAD 1 to 
adjust the output level of the external speaker that is con-
nected to the transceiver’s main unit.
ON  :  The audio output level of the external speaker is adjust-
able with the AF volume control knob on CONTROL 
HEAD 1.
       The minimum audio output level must be set to more 
than 1 on the transceiver’s main unit in order to avoid 
muting the audio output.
OFF :  The audio output level of the external speaker is not 
adjustable by CONTROL HEADs.
D Intercom function
Set the Intercom function to ON or OFF. (default: ON)
The Intercom function allows CONTROL HEAD operators to 
communicate each other via their microphones.
The optional microphone and the SP-22 external speaker 
are required.
ON  :  The  [INTERCOM]  function  is  assigned  to  [P3],  and 
you can enter and exit the Intercom mode by pushing 
[P3 (INTERCOM)].
OFF :  [P3] retains the originally programmed function and the 
Intercom function is OFF.
NOTE:
•  When one CONTROL HEAD enters the Intercom mode, 
the other CONTROL HEAD also enters even if this func-
tion is set to OFF.
•  When this function is set to ON, the key function [Null] 
must be assigned to [P3] by the CS-F9010/F9510 clon-
ing software on both CONTROL HEADs for matching 
the CONTROL HEAD’s performance. Ask your dealer for 
details.

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DUAL-HEAD OPERATION
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■ Intercom function
[P3] is used for the Intercom function ON/OFF switch when 
the Intercom function is set to ON in the REMOTE BOX SET 
MODE. (No other function can be assigned.)
The Intercom function allows the operators of CONTROL 
HEAD 1 and 2 to communicate each other via their micro-
phones.
The optional microphone and the SP-22 external speaker 
are required.
NOTE:
• Transmitting is impossible during intercom operation.
•  During intercom operation, when [PTT] is pushed and 
held  on  the  caller’s side,  any  received  radio  signal  is 
muted on the listener side’s CONTROL HEAD external 
speaker. However, the received radio signal can be heard 
on the caller side’s CONTROL HEAD external speaker 
and the main unit’s external speaker.
•  When the message signal is received, it is not displayed 
on the LCD of CONTROL HEADs during intercom opera-
tion. After exiting the intercom mode, it will be displayed 
on the LCD.
•  During intercom operation, CONTROL HEADs 1 and 2 
return to the normal operation mode, if no [PTT] opera-
tion is performed for 30 sec.
q Push [P3 (INTERCOM)] to enter the intercom mode.
  •  
The other CONTROL HEAD is also set to the Intercom mode 
automatically
 even if this function is set to OFF
.
  •  “INTERCOM” appears on both CONTROL HEADs.
w  Push and hold [PTT] and speak at a normal voice level 
into the microphone.
  •  “IN USE” blinks on the listener side.
  •  To adjust the audio output level, rotate [VOL].
e  After releasing [PTT] you can hear the response through 
the speaker.
r  To return to normal operation, push [P3 (INTERCOM)].

■ TX AF Monitoring function
When the TX AF Monitoring function is set to ON in the RE-
MOTE BOX SET MODE, and one CONTROL HEAD operator 
is communicating, the audio can be heard from the SP-22 
external speaker on the other CONTROL HEAD side.
The optional SP-22 external speaker is required.
NOTE: When one CONTROL HEAD operator is communi-
cating, “IN USE” blinks on the other CONTROL HEAD’s 
display and the TX indicators lights red.
I N U SE
■ NOTES
•  Transmission can be performed on either CONTROL HEADs 
1 or 2 at the same time.
•  The Power ON Password function will not work properly 
when attaching the RMK-4.
•  The RMK-4 is not designed for the single-head operation. 
For single-head operation, use the original attachment and 
cable combination— no RMK-4 is necessary.
   But when the one of CONTROL HEADs is accidently bro-
ken, the RMK-4 may go into the unintended single-head op-
eration mode. In that case, the Intercom function MUST be 
turned OFF. Otherwise, any problem may occur.
10
3DUAL-HEAD OPERATION

11
4
OPTIONS
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2
3
4
5
6
7
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10
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12
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16
•  OPC-607/OPC-608/OPC-609/OPC-726  
separation cables
   Used for CONTROL HEAD and the RMK-4 connection.
  OPC-607 : 3 m; 9.84 ft
  OPC-608 : 8 m; 26.3 ft
  OPC-609 : 1.9 m; 6.3 ft
  OPC-726 : 5 m; 16.4 ft
• HM-152/HM-152T/HM-148G/HM-148T hand microphones
  HM-152  : Hand microphone
  HM-152T : DTMF microphone
  HM-148G : Self grounding heavy duty microphone
  HM-148T : Self grounding heavy duty DTMF microphone
• SM-25 desktop microphone
• SP-22 external speaker
  Compact and easy-to-install.
  Input impedance  : 4 ø
  Max. input power  : 5 W
  * The SP-22 is not recommended for use with the IC-F9511HT.  
Use the SP-30 instead.
Icom optional equipment are designed for optimal performance when 
used with this transceiver. We are not responsible for the transceiver 
being damaged or any accident caused when using non-Icom op-
tional equipment.
Some options may not available in some countries. Please ask your 
dealer for details.

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© 2009 Icom Inc.
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