Difference between revisions of "C-2299~VRC"

From RadioNerds
Jump to navigation Jump to search
 
(2 intermediate revisions by the same user not shown)
Line 10: Line 10:
 
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.
  
 +
 +
===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==
 
==Use as an auxiliary interface for microphones and headsets==
Line 46: Line 49:
  
 
[[Category:Military/Intercoms]]
 
[[Category:Military/Intercoms]]
 +
{{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