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Prior to the introduction of POLYCON, this form of
communication was accomplished primarily with a VHF transceiver
broadcasting over an open channel to the helicopter airborne
radios. This open broadcast method does not satisfy the very
specific operational and communication needs for helicopter SAR
operations due to the following:
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SAR
helicopter hoist operations are "heavy workload"
activities, requiring critical/extensive communication among the
helicopter crew. External broadcasts over open channels
should be kept to a minimum.
-
Information
is vital to the full understanding of a situation, and to be
able to take the appropriate actions. This common rule
also applies to crewmembers operating outside the helicopter.
Traditional communication concepts do not include the rescue
crewmember in the onboard communications.
-
In
certain operations it is preferable, or even critical to
maintain direct communication between the rescue crewmember and
onboard crew, such as a doctor. Using an open channel for
such communication can result in sharing sensitive information
to irrelevant personnel.
The
POLYCON system eliminates these problems by:
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Allowing
external crewmembers to overhear the aircraft intercom and
access information. Thereby reducing the need to relay
information between aircrew and rescue crewmember.
-
Removing
external communication over airborne radios. This reduces the
flight crew’s workload since maintaining an external radio
link over an open channel with the rescue crewmember is no
longer required.
-
Improving
the external crewmember’s situational awareness through
monitoring the onboard communications, and allows the crewmember
to "remain part of the crew."
-
Improving
CRM.
-
Maintaining
a closed circuit communication system.
Other
POLYCON system benefits include:
-
Hands-free
continuous communication.
-
Wireless
hands-free intercom during flight.
-
Enhanced
aircraft safety via positive clearances to the rear from
external crew on the ground.
-
TX
off mode allows the pilot to cut the transmissions from the
helicopter to the rescue crewmember. This can be preferable in
situations where a patient requires preparation time before
transfer. The rescue crewmember maintains the ability to call
the airborne crew at all times.
NOTICE:
The sale or lease of the Polycon SAR Communication System within
the USA to operators other than the federal government may be restricted
as required by the
Rules of the FCC.
Export to other countries is subject to local laws and
regulations. Contact
LSC's Technical Help for additional information on the POLYCON
system.
Components:
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004 RLI 00U Interface Unit
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MP20-00U Transceiver
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- Duplex interface to crew
intercom and/or external comm.
- 16 Channel 409-470 MHz
- Fully software
programmable
- Channel scanning function
- Output to mode selecting
unit
- Meets the aviation
requirements of RTCA D0-160C
- General, maritime and
aviation type approval
- Optional remote control
for cockpit mount
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- Frequency range UHF
409-470 MHz
Dual band UHF/VHF option
- Channel Spacing 25 KHz
- 16 channels
- VOX/PTT operation hands
free PTT
- Operating
temperature: -25 to 55 Celsius
- Environmental IP67
Waterproof to at least 6 feet
- Fully software
programmable
- Channel scanning function
- Can be operated as hand
held Walkie Talkie
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June
2002
The
POLYCON System has recently completed an extensive trial and testing with a
major Air Force. Feedback from the trial and testing
have resulted in numerous system enhancements cumulating in the
development of a Second Generation system. Click the image to
the right to download a summary brochure on the latest POLYCON
System. The file size is 1.56 MB and will take
approximately 9-12 minutes to download over a 28.8 kbps modem
connection.
You
will require the Adobe Acrobat® Reader™ to view
the brochure. If you do not already have this
application you may obtain it for free from Adobe.
Follow the link below to get your copy of Acrobat®
Reader™.

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Click to download
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