Equipment and Components for the RF and Microwave industry

VHF Isolators for Narrow Band Amplifier Protection

  • Full VHF Frequency Range
  • 50 watts CW Power Rating
  • Conduction Cooled
  • LC Design
  • Compact Size
  • Choice of connectors
  • Thermal cut-out option

The AVI series of lumped element ferrite isolators are designed to provide amplifier output protection against short term load mismatches, such as antenna disconnection, in VHF communication systems for both ground based and airborne applications. The isolators require suitable heat sinking and can also be supplied with a thermal switch for amplifier power interruption.

AM Model No Frequency Range (MHz) Isolation (dB) Min Insertion Loss (dB) Max VSWR:1
Max
Forward & Reverse Power1,2 Operating Temperature
AVI-6575 65-75 20 1.0 1.25 50 0 to +60C
AVI-7585 75-85 20 0.9 1.25 50 0 to +60C
AVI-8595 85-95 20 0.8 1.25 50 0 to +60C
AVI-95105 95-105 20 0.7 1.25 50 0 to +60C
AVI-105115 105-115 20 0.7 1.25 50 0 to +60C
AVI-115125 115-125 20 0.7 1.25 50 0 to +60C
AVI-125135 125-135 20 0.7 1.3 50 0 to +60C
AVI-135145 135-145 20 0.7 1.3 50 0 to +60C
AVI-145155 145-155 20 0.7 1.3 50 0 to +60C
AVI-155165 155-165 20 0.7 1.3 50 0 to +60C
AVI-165175 165-175 20 0.7 1.3 50 0 to +60C
AVI-175185 175-185 20 0.7 1.3 50 0 to +60C

Note 1. Other forward and reverse powers can be accommodated.
Note 2. Sufficient cooling needs to be provided to dissipate generated heat.


Typical outline drawing, dimensions and hole positions may vary according to power requirements.

We reserve the right to change standard product specifications without notice but will be pleased to consider control drawings for quotation.

T: +44 (0)1376 550220 F: +44 (0)1376 552145 E: sales@atlantecrf.com 40A Springwood Drive, Braintree, Essex CM7 2YN, England