Bird AT-500, AT-800 HF/ VHF Antenna Tester
Bird's AT-Series, Antenna Testers provide a cost-effective, fast, graphical way of determining the quality of mobile and base station antennas. The unit can display single frequency or swept readings scaled in either VSWR, return loss or match efficiency and can save up to 12 traces for comparison or later archiving with an optional cable and PC software package.
Features
1. Swept Frequency Measurements,Show VSWR, Match Efficiency or Return Loss across the entire band
2. Can be used to optimize antenna performance and troubleshoot intermittent problems
3. Quick Pass-Fail indicator compares measurements to user-selected limits
4. Saves and recalls up to 12 scans in nonvolatile memory for long-term monitoring of antenna performance
5. AT-400: 65–520 MHz for aeronautical, mobile radio, FM, and TV
6. AT-100: 2–136 MHz military tactical and airborne communication, nav/com, fire, police, and emergency
Details
Bird's AT-Series, Antenna Testers provide a cost-effective, fast, graphical way of determining the quality of mobile and base station antennas. The unit can display single frequency or swept readings scaled in either VSWR, return loss or match efficiency and can save up to 12 traces for comparison or later archiving with an optional cable and PC software package.
Frequency Characteristics:
Frequency Range
AT-500 2 to 520 MHz
AT-800 806 to 960 MHz
Frequency Resolution 20 kHz
Frequency Accuracy ? 50 kHz
Number of points 100
Measurements:
Rho 0.000 to 1.000
Match Efficiency 0 to 100%
Return Loss -32 to 0 dB
VSWR 1.00 to 100.00
Measurement Accuracy Rho ? 0.04
Match Efficiency Calculated from
Return Loss Rho accuracy
VSWR
Test Port:
Connector N(F) supplied. N, TNC, UHF, BNC, male or female available
VSWR 1.25 max
Directivity 32 dB typical
Measurement Speed:
Single Frequency Point 5 readings per second typical
Frequency Sweep 1 sweep per second typical
Field Strength:
Range 0 to 100%, relative
Sensitivity Fullscale deflection and 0.22 V/m @
400 MHz using supplied antenna
PC Interface: RS-232 protocol via DB-9 port