وصف
| Production Name | Production Number | الخامسersion |
| نظام تحديد المواقع&BD&GLONASS External Antenna | DL-نظام تحديد المواقع&BD&GLONASS-SMAJZG3–BOB-ت | V1.0 |
- Antenna Characteristics
| لا. | Design Specifications | Typical | Units |
| 1 | دبليوorking Frequency | 1575.42/1561.09/1602ميغاهيرتز | ميغاهيرتز |
| 2 | Gain | 1.12dBi | |
| 3 | Antenna efficiency | 45.4% | |
| 4 | الخامس.س.دبليو.ص. | ≥2.0ديسيبل | |
| 5 | Ploriaztion | Right-handed polarization | |
| 6 | Axial Ratio | ≤3.0 | |
| 7 | Radiation pattern | directional | |
| 8 | impedance | 50أوه | |
| 9 | Power handling | 33dbm | |
| 10 | Interface | SMA Gold-plated straight male head | |
| 11 | Ceramic Size | 35*35*4مم | مم |
- Amplifier Characteristics
| لا. | غرض | تحديد |
| 1 | Range Of Receiving Frequency | 1575.42/1561.09/1602±3ميغاهيرتز |
| 2 | Gain | 32±3 ديسيبل |
| 3 | V.S.W.R. | ≤2.0 |
| 4 | Noise Figure | <2.0 |
| 5 | DC الخامسoltage | 3~5V |
| 6 | DC جurrent | ≤20mA |
- المواصفات الميكانيكية
| بحجم | 55*50*17مم | Mounting | Stick |
| وزن | 120ز | موصل | SMA |
| اللون | Black | Cable | RG174 – 3م |
| Operatinز Temp. | -40ºC~85درجة مئوية | Storing Temp. | -45ºC~85ºC |
| Operatinز رطوبة | 0~95% | Storing رطوبة | 0~95% |
- Reliability تest صeport
| لا. | Test items | Testing method | دevice name |
V.S.W.R ≤2.3 |
Shell دeformation |
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| 1 | High temperature test | Place the antenna in the temperature of 80 degrees in the drying box for 12 ساعات, no shape deformation. Then put it in room temperature after drying for 24 ساعات,no oxidation. | High/low temperature tester
|
OK | لا | ||||||
| 2 | Low temperature test | Place the antenna in the freezer with temperature of -40 degrees for 12 ساعات, no shape deformation. Then put it in room temperature,no oxidation after recovery. | High/low temperature tester
|
OK | لا | ||||||
| 3 | Rain test | Put the antenna under a faucet and let water rush on the shell for 4 ساعات. Pick it up after 4 ساعات, there is no water at the bottom of antenna. It shows that this product has a good waterproof function. | Faucet | OK | لا | ||||||
| 4 | Salt spray test | Dust free, atmospheric pressure 80PA pressure; solution pH: 6.9; salt solution concentration at 35 درجة مئوية (42 liters of sea salt solute per liter of solution); density: 1.0366; after 24 hours of testing, rinse with 32 ° C flowing pure water; hair dryer air dried, no oxidation, no corrosion | Salt spray test machine | OK | NO | ||||||
