美國ETA-3A線路分析儀檢查設備

規格
　　電源：凝膠電池，110/220充電器
　　尺寸：12"10"Dx5"H
　　重量：12lbs
　　附件：（2）8線延長線纜/夾子頭
　　耳麥
　　音頻發生器
　　螺絲刀

美國ETA-3A線路分析儀檢查設備

The ETA ‐ 3 a is 2 in evaluating telephone instruments and cabling for The presence of a variety of eavesdropping attacks and devices.
Eavesdropping using a telephone can consist of:
1) the interception of telephone calls
2) the gathering of room conversation by bringing it out of the area on the telephone wiring.
The ETA‐3A will detect many different types of attacks, But telephone testing is complex enough that a thorough understanding of telephone electronics may be required to detect the more subtle ones. There are certain sophisticated eavesdropping attacks Telephone testing is often not a red light‐green light sort of activity. Many of the tests are open to interpretation. When faced with uncertainty The or conflicting results, try to use a logical process to determine other types of tests that can be 2 confirm the assumed the results.