Parts List/Tune Up Info

Confidential Proprietary 8/14
4. Environment Resistance Properties
4.1 Operational Temperature
4.1.1. Low Operational Temperature
TLO = -30°C
4.1.2 High Operational Temperature
THO = +80°C
4.1.3 Demands
No visual deterioration shall occur, and the antenna shall satisfy the
electrical demands, according to 2.4.1, during the test.
4.1.4 Measuring Method
The antenna is placed in a climatic chamber at temperature TLO.
The antenna is taken out after 1 hour, and VSWR is immediately measured.
The antenna is placed in a climatic chamber at temperature THO.
The antenna is taken out after 1 hour, and VSWR is immediately measured.
4.2 Temperature Cycling
4.2.1 Low Cycling Temperature
TLC = -30°C
4.2.2 High Cycling Temperature
THC = +80°C
4.2.3 Demands
No visual deterioration shall occur during the test. The antenna shall satisfy
the electrical demands, according to 2.4.1.
4.2.4 Measuring Method
The antenna is placed in a climatic chamber. The temperature is cycled as
follows: The temperature is kept constantly at TLC for 1 hour, increased to
THC during 1 hour, kept constantly at THC for 1 hour, and then decreased
to TLC during 1 hour.
This procedure is repeated 10 times, ending at room temperature according
to Figure 4 below.
Figure 4. Temperature Cycling