Difference between revisions of "C-2299~VRC"

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==Overview==
 
The C-2299/VRC is used between receiver-transmitters of Radio Sets AN/VRC-49 and AN/VRC- 45 to provide automatic retransmission of signals between radio sets that are too far apart to communicate directly with each other.
 
The C-2299/VRC is used between receiver-transmitters of Radio Sets AN/VRC-49 and AN/VRC- 45 to provide automatic retransmission of signals between radio sets that are too far apart to communicate directly with each other.
  
Receiver-Transmitter No. 1 and terminal radio No. 2 operate on one frequency (F1), and receiver-transmitter No. 2 and terminal radio No. 4 operate on another frequency (F2). For retransmission operation, the radios in the sys- tem must operate on squelch mode.
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Receiver-Transmitter No. 1 and terminal radio No. 2 operate on one frequency (F1), and receiver-transmitter No. 2 and terminal radio No. 4 operate on another frequency (F2). For retransmission operation, the radios in the system must operate on squelch mode.
  
When the C-2299/VRC RETRANS switch is set to ON, the retransmission of signals and keying control are automatically passed through the C-2299/VRC to the retransmission site receiver-transmitters. When the C-2299/VRC RE- TRANS switch is set to OFF, the user has con- trol of the two receiver-transmitters from the audio accessories connected to the C-2299/VRC. In position 1 of RAD TRANS switch, receiver- transmitter No. 1 is controlled; in position 2 of RAD TRANS switch, receiver-transmitter No. 2 is controlled.
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When the C-2299/VRC RETRANS switch is set to ON, the retransmission of signals and keying control are automatically passed through the C-2299/VRC to the retransmission site receiver-transmitters. When the C-2299/VRC RE- TRANS switch is set to OFF, the user has control of the two receiver-transmitters from the audio accessories connected to the C-2299/VRC. In position 1 of RAD TRANS switch, receiver- transmitter No. 1 is controlled; in position 2 of RAD TRANS switch, receiver-transmitter No. 2 is controlled.
  
 
Audio accessories can be connected to the C-2299/VRC to enable the radio user to communicate through the retransmission site receiver- transmitters with the terminal radios. When the C-2299/VRC RETRANS switch is set to ON, the radio user cannot communicate with the terminal radios, but can hear the transmission occurring between the terminal radios.
 
Audio accessories can be connected to the C-2299/VRC to enable the radio user to communicate through the retransmission site receiver- transmitters with the terminal radios. When the C-2299/VRC RETRANS switch is set to ON, the radio user cannot communicate with the terminal radios, but can hear the transmission occurring between the terminal radios.
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However, when the C-2299/VRC is connected to the AM-1780/VRC of the radio-intercom system the receiving circuits of the receiver- transmitters No. 1 and 2 are not available at the C-2299/VRC. Thus, radio communication is conducted from the crew member control boxes. Also, for the retransmission operation, the INSTALLATION switch of the AM-1780/VRC is set to the RETRANS position. Under these conditions, the retransmission signals are available on the ALL position of the crew member control boxes.
 
However, when the C-2299/VRC is connected to the AM-1780/VRC of the radio-intercom system the receiving circuits of the receiver- transmitters No. 1 and 2 are not available at the C-2299/VRC. Thus, radio communication is conducted from the crew member control boxes. Also, for the retransmission operation, the INSTALLATION switch of the AM-1780/VRC is set to the RETRANS position. Under these conditions, the retransmission signals are available on the ALL position of the crew member control boxes.
  
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===Use as a remote keying station for VRC-12 series radios===
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The C-2299 can be used as a remote keying station for the VRC-12 series radios.  When hooked to the MT-1029, the C-2299 allows remote use of the microphone and speaker for up to two radios.  A typical example is for the C-2299 to be installed in the front cab of a vehicle while the radios remain i the rear, or under the seat.
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==Use as an auxiliary interface for microphones and headsets==
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The C-2299 is the only way to properly use a microphone directly on the VIC-1. 
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[[File:C-2299_additional_accessories.png]]
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==Images==
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<gallery widths=100px heights=100px perrow=5>
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File:C2299-Front.JPG
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File:C2299-bottom.JPG
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</gallery>
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==Example Hookup==
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[[File:C-2299 hookup example.png|600px]]
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==Schematics==
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<gallery widths=100px heights=100px perrow=5>
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File:C-2299 schematic.png
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File:C-2299 wiring.png
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</gallery>
  
  
[[File:C2299-Front.JPG |600px]] [[File:C2299-bottom.JPG |600px]]
 
  
  
 
==Additional Files==
 
==Additional Files==
 
;{{pdf|TM_11-5820-401-35-1.pdf‎|TM 11-5820-401-35-1}}
 
;{{pdf|TM_11-5820-401-35-1.pdf‎|TM 11-5820-401-35-1}}
:DIRECT SUPPORT, GENERAL SUPPORT, AND DEPOT MAINTENANCE MANUAL
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:DIRECT SUPPORT, GENERAL SUPPORT, AND DEPOT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS
INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS
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::CONTROL, FREQUENCY SELECTOR C-2742/VRC
::CONTROL, FREQUENCY SELECTOR C-2742/VRC AND CONTROL, RADIO SET C-2299/VRC
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::CONTROL, RADIO SET C-2299/VRC
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::April 1973
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[[Category:Military/Intercoms]]
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{{DISPLAYTITLE:C-2299/VRC}}

Latest revision as of 10:22, 29 November 2013

Overview

The C-2299/VRC is used between receiver-transmitters of Radio Sets AN/VRC-49 and AN/VRC- 45 to provide automatic retransmission of signals between radio sets that are too far apart to communicate directly with each other.

Receiver-Transmitter No. 1 and terminal radio No. 2 operate on one frequency (F1), and receiver-transmitter No. 2 and terminal radio No. 4 operate on another frequency (F2). For retransmission operation, the radios in the system must operate on squelch mode.

When the C-2299/VRC RETRANS switch is set to ON, the retransmission of signals and keying control are automatically passed through the C-2299/VRC to the retransmission site receiver-transmitters. When the C-2299/VRC RE- TRANS switch is set to OFF, the user has control of the two receiver-transmitters from the audio accessories connected to the C-2299/VRC. In position 1 of RAD TRANS switch, receiver- transmitter No. 1 is controlled; in position 2 of RAD TRANS switch, receiver-transmitter No. 2 is controlled.

Audio accessories can be connected to the C-2299/VRC to enable the radio user to communicate through the retransmission site receiver- transmitters with the terminal radios. When the C-2299/VRC RETRANS switch is set to ON, the radio user cannot communicate with the terminal radios, but can hear the transmission occurring between the terminal radios.

However, when the C-2299/VRC is connected to the AM-1780/VRC of the radio-intercom system the receiving circuits of the receiver- transmitters No. 1 and 2 are not available at the C-2299/VRC. Thus, radio communication is conducted from the crew member control boxes. Also, for the retransmission operation, the INSTALLATION switch of the AM-1780/VRC is set to the RETRANS position. Under these conditions, the retransmission signals are available on the ALL position of the crew member control boxes.


Use as a remote keying station for VRC-12 series radios

The C-2299 can be used as a remote keying station for the VRC-12 series radios. When hooked to the MT-1029, the C-2299 allows remote use of the microphone and speaker for up to two radios. A typical example is for the C-2299 to be installed in the front cab of a vehicle while the radios remain i the rear, or under the seat.

Use as an auxiliary interface for microphones and headsets

The C-2299 is the only way to properly use a microphone directly on the VIC-1.

C-2299 additional accessories.png

Images


Example Hookup

C-2299 hookup example.png


Schematics



Additional Files

Adobe PDF icon.png TM 11-5820-401-35-1

DIRECT SUPPORT, GENERAL SUPPORT, AND DEPOT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS
CONTROL, FREQUENCY SELECTOR C-2742/VRC
CONTROL, RADIO SET C-2299/VRC
April 1973