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Nitek VB39 Video Balun Transceiver with Surge Suppression Up to 1000 feet





Video Balun Transceivers for twisted pair up to 1,000 feet. Two types are available. The basic VB37 model and the VB39 with built-in surge arresting for added equipment protection.

Video Balun Transceiver is a video transmission device that provides a low cost means of sending live video over unshielded twisted pair, point-to-point wiring for distances of up to 1,000 feet (750 feet when used with DVR equipment). The VB37 and VB39 are compatible with all of the “up-the-coax” control systems.

A basic system uses (2) VB37 or (2) VB39 units, one at each end of a twisted pair of wires. These units are intended for use over existing in house telephone wiring, category 5 wiring or other twisted pair cable runs to provide a convenient, cost-effective alternative to coax.

The VB37 and VB39 are designed to provide superior immunity from noise and interference even when running next to line power!



  • Quality video over ordinary twisted pair cable
  • Immunity to noise and interferenc
  • Built-in surge protection on VB39 models\
  • Passive devices - do not require power
  • Video & P/T/Z over a single pair (with “up-the-coax”
  • M - version mounts directly to camera or video source
  • Weather resistant design
  • Easier to install than coax

Transceiver Unit

Size 1.3"H x 2.0"W x .D
Power Requirements NONE REQUIRED
Input 1 vpp composite video
Monochrome or Color
Output Balanced low voltage current loop
Shipping Weight 1 lbs for single unit
8 lbs for a 44 unit Box


System (2 Transceivers Required)

Video Format RS170, NTSC, PAL, SECAM,
CCIR (Color or B/W)
Video Input 1 vpp composite video
Monochrome or Color
Operating Frequency DC to 10 MHz
Common Mode
>60 dB typ.
Temperature Range -40 degrees C to +85 degrees C
Humidity Range 0 to 98%, non-condensing
Transient Immunity 6,000 V 1.2uS x 50 uS
per ANSI / IEE 587 C62.41 B3
3,000 A 8uS x 20 uS
when ground screw terminal is
connected to earth-ground
Enclosure Material Black ABS Flame Retardant
Twisted Pair Connection Screw Terminals
Wire Spec 26 to 12 AWG Unshielded
Twisted Pair (UTP)
  DC Loop Resistance 51 Ohms/1,000 ft (max)
  Normal Capacitance 17pF/ft.
  Impedence 100 Ohms +/- 20%
  UTP Category 2 or better