:

3         electrical characteristics

3.1 dielectric antenna

form 1

3.2     mechanical

form 2

4     reliability

condition:temperature: 40±5°c

load: dc=5v±0.5 v

quantity: 2000pcs

sustained time: 48h

5         environmental specifications

post environmental tolerance (refer to the form 1~2 )

condition:temperature range 25±3°c

relative humidity range 55~75%rh

operating temperature range -40°c~+85°c

storage temperature range -40°c~+85°c

5.1 moisture proof

the device should satisfy the electrical characteristics specified in form 1~2 after exposed to the temperature 40±2°cand the relative humidity 90~95% rh for 96 hours and 1~2 hours recovery time under normal condition.

5.2 vibration resist

the device should satisfy the electrical characteristics specified in form 1~2 after applied to the vibration of 10 to 55hz with amplitude of 1.5mm for 2 hours each in x , y and z directions.

5.3 drop shock

the device should satisfy the electrical characteristics specified in form 1~2 after dropping onto the hard wooden board from the height of 30cm for 3 times each facet of the 3 dimensions of the device.

5.4 high temperature endurance

the device should satisfy the electrical characteristics specified in form 1~2 after exposed to temperature 80±5°cfor 24±2 hours and 1~2 hours recovery time under normal temperature.

5.5 low temperature endurance

the device should also satisfy the electrical characteristics specified in form 1~2 after exposed to the temperature -40°c±5°cfor 24±2 hours and to 2 hours recovery time under normal temperature.

5.6 temperature cycle test

the device should also satisfy the electrical characteristics specified in form 1~2 after exposed to the low temperature -25°c and high temperature +85°c for 30±2 min each by 5 cycles and 1 to 2 hours recovery time under normal temperature.

6         weatherproof

put the antennas in 1m deep water for 12h, and find 100% waterproof.