Control Heads

Explaination of Functionality Type Code
A4 Clamshell | Syntor X Heads

  • A - conventional only
  • B - privacy plus trunking + conventional
  • C - Smartnet or Smartsite trunking plus conventional
  • E - AMSS Smartnet wide coverage + conventional
  • W - ASTRO APCO25 digital plus any of the above modes

  • 3 - hand held control head
  • 4 - zone/mode with rotary knobs
  • 5 - 8 option buttons
  • 7 - full options plus telephone keypad
  • 9 - the system 9000 series alpha numerichead

Frequently Asked Questions

Q: My Syntor X is programmed to scan but won't
A: The white/grey wire from radio connector 31 to head must be grounded or switched to ground.
Q: How can I increase the number of channels in an A4 head from 4 to 12.
A: Remove stops under the knob and connect unused channel positions.
Q: How can I increase the number of channels in an A4 head from 16 to 32.
A: Add a toggle switch from F5 to ground for lower/upper bank of 16.

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