Collcomm Heil Sound PRO 7 iC Instruction Manual
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Collcomm, Inc.
TEL/FAX: 888-883-5788
EMAIL: support@ncsradio.com
Website: www.collcomminc.com
Using the
PRO 7 iC
with the NCS
-
C003 Headset Interface Box
To connect the PRO 7 iC to the NCS-C003 Headset Interface Box requires the NCS-003-HHS
Headset Adaptor Cable. The two PRO 7 iC 3.5 mm phone plugs connect to their respective
jacks on the Headset Adaptor Cable. Make sure the headset plug with the RED band (mic audio)
is connected to the adaptor cable jack with the RED band. Connect the Soft Touch PTT switch
or alternatively the optional NCS-F230 Hand Switch or NCS-F221 Footswitch to the ¼ inch
phone jack on the front panel of the NCS-C003.
Installation of Microphone Jumpers in the NCS-C250
Microphone jumpers must be installed in the NCS-C250 to match the pin outs of the NCS-C003
Headset Interface Box. The proper installation of the mic jumpers for use with the NCS-
C003 and
adaptor cable is shown below. After all jumpers are installed refer to the NCS-C250 Instruction
Manual and set the mic audio level for proper audio output.
The Sel Audio and Unsel Audio jumpers can be swapped to reverse the audio in the headset
earpieces.
Push connector to engage
Pull Release Ring Back
to Unplug Connector
Line Up the WHITE DOT with the WHITE DOT on
the Mating Connector Before Engaging
Red = Mic Audio
NCS-003-HHS
Mic Audio
PTT
Ground
Unsel
Audio
AUXV
Sel
Audio
1 2 3 4 5 6 7 8
5V 12V
AUXV
Electret Voltage
Jumper
Contents
(1) Headset
(1) Soft Touch PTT Switch
(1) Detachable Headset Cord - Straight
(1) Detachable Headset Cord - Coiled
(2) Earmuff Cover
Features
High Output Electret Microphone Element
Acoustically Tuned Earpieces for Distortion Free Sound
Speaker Phase Reversal Switch
2" Thick Gel Foam Ear Pads
Stereo earpieces for Dual Receiver Operation
26 dB of Passive Noise Reduction (PNR)
Mechanical Adjustments
Mechanical Adjustments
Microphone Element
The Heil Pro 7 iC is equipped with a high output electret (iC) microphone element. The
electret element has a -3dB fixed point at 35 Hz and 12kHz with the sensitivity of-
48dB at 1500
ohms output centered at 1kHz.
Termination
Microphone Audio
The microphone audio cable is terminated with
a 3.5 mm mono phone plug. A RED
band around the phone plug identifies
the microphone plug.
Earpiece Audio
The earpiece audio cable is terminated with a 3.5 mm stereo phone plug.
Balance Control
The Balance Control adjusts the audio level between the two earpieces.
Phase Reversal Switch
The Phase Reversal Switch has little effect when listening to FM
transmissions. It was designed for use in the high frequency (HF)
spectrum for copying weak signals in a crowded band. Signals out
of phase arrive at slightly different times, thus some are slightly
canceled while others are accentuated which becomes a perfect tool
for copying weak signals.
Using the
PRO 7 iC
with the NCS
-
C250 Mobile Multi
-
Switcher
To connect the PRO 7 iC to the RJ45 mic jack on the NCS-C250 requires the NCS-250-HHS-216
Headset Adaptor Cable. The RJ45 plug on the adaptor cable connects to the mic jack on the front
or rear of the NCS-C250. The two PRO 7 iC 3.5 mm phone plugs connect to their respective jacks
on the Headset Adaptor Cable. Make sure the headset phone plug with the RED band (mic audio)
is connected to the phone jack with the RED band on the headset adaptor cable. The included
Soft
Touch PTT switch is connected via the 1/4 inch phone jack on the Headset Adaptor Cable.
Alternat
ively, the optional NCS-F230 Hand Switch or NCS-F221 Footswitch can also be connected
to this phone jack.
Installation of Microphone Jumpers in the NCS-C250
Jumpers must be installed in the NCS-C250 so that the RJ45 mic jack pin-outs on
the front and rear
panels match that of the NCS-250-HHS-216 Headset Adaptor Cable. Refer to the NCS-C250
Instruction Manual for detail instructions on setting these jumpers.
The proper placement of the mic jumpers for use with the NCS-250-HHS-216 Headset and adaptor
cable is shown below. After all jumpers are installed refer to the NCS-C250 Instruction Manual and
set the mic audio level for proper audio output.
The Sel Audio and Unsel Audio jumpers can be switched to reverse the audio in the headset
earpieces.
Mic Audio
PTT
Ground
Unsel
Audio
AUXV
Sel
Audio
1 2 3 4 5 6 7 8
5V 12V
AUXV
Electret Voltage
Jumper
The headband is made of Stainless Steel and is surrounded
by 1" thick foam padding. To adjust the pressure of the
earpads simply flex the stainless steel band to achieve the
desired fit as shown in the photo. Adjustments to the
headband size are made by two thumbscrews on either side
of the headband.
NCS-250-HHS-216
Headset Adaptor Cable
PRO 7 iC Headset
Soft Touch PTT Switch
PTT
Earphones
Microphone
To NCS-C250
Detachable Headset Cord
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