一、             patchtest curve
test condition:39x39mm ground
一、             electrical characteristics
1.1antenna
1
antenna model
das1575（25*25*4）
2
frequencyrange
1575.42mhz±1.02 mhz
3
v.s.w.r
1.5:1
4
band width
> 10 mhz
5
impendence
50 ohm
6
gain
5dbic based on7×7cm ground plane
7
polarization
rhcp
1.2 lna
1
frequencyrange
1575.42mhz±1.02 mhz
2
dc voltage
3.0v
3
gain（typical）
26db( +25℃±10℃)
4
output vswr（typical）
2.0
5
noise figure（typical）
1.5(+25℃±10℃)
6
dc current（typical）
9.5ma(at3.0v)  
二、             material
no
part name
spec
1
antenna
dielectric ceramics
2
pcb
fr4
3
shielding
tinplate
4
rf cable
rg174
l=300±10cm
5
rf connector
sma-j3
6
thickness
15mm
四、lnatest curve
test condition: dc 3.0v
五、structure
八、 packing
each carton includes 100 pcs antenna，2 layers per carton ，each inbox
put 1pcs antenna, the size of carton is 500 * 260 * 250 mm.

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赛尔讯电子（香港）有限公司

13728780713
中国 深圳