N3PB Field Phones

This is just my collection of info on field telephones and how we use them for cave rescue.

• All field phones - generic notes applicable to most field phones. This is probably the most important page here.
• Field Wire
• Specific field phones
  • TP-6N
  • TA-312 and TA-43
  • TA-1
  • Other Field Phones
• Tools
• Generic comms notes

---

Part of N3PB.org Phil Benchoff benchoff at n3pb.org