1. 设备简介
AV-15是一款便携式航空电子综合测试仪,包含:
VOR测试
ILS测试
DME测试
ADF-NDB测试
应答机A/C/S模式测试
ADS-B测试
相对于AV-10增加的功能包括:
Ø A/C/S模式应答机输出功率测试
Ø Detect power droop
Ø 测量A/C/S模式的Minimum Trigger Level (MTL)
Ø -9dbm sidelobe suppression
Ø 应答机接收频率
COMM电台测试
2. 技术参数
Ø 运行温度:-20 to +50 deg C
Ø 存储温度:-30 to +70 deg C
Ø 载波频率精度:
Basic accuracy= +/- 2.5 PPM plus +/-1.0 PPM aging per year.
Variation over temperature= +/- 2 PPM over -20 c to +50 C range.
Ø Output Power;
ADF = -12 +/-3 dbm
VOR= -10 +/-3 dbm
ILS Localizer= -10 +/-3 dbm
ILS GS = -17 +/-3 dbm
ILS MKR = -15 +/-3 dbm
DME = -12 +/-3 dbm
TXPDR = -12 +/-3 dbm
COMM = -10 +-3 dbm
Ø VOR radial accuracy; +/- 1 deg
ILS localizer DDM accuracy; +/- 15%
ILS glide slope DDM accuracy; +/- 15%
DME accuracy; +/- 0.1NM
Ø 应答机相关指标:
询问信号指标:
PRF 235 +/-5 Mode A,C 50 +/-2 Mode S interrogations / second
Power Out -12 +/-3 dbm at antenna port
P2 relative P1 Equal +/-0.1db or -9 +/- .5 db
P2 Position 2.0uS +/-0.01uS from P1 if enabled
P3 Position 8.0 +/-0.01 uS Mode-A, 21.0 +/-0.02 uS Mode-C , relative to P1
P1,2,3 Width 0.8 +/-0.05 uS
Frequency 1030 MHz +/- 3ppm
+/- 15 MHz adjustment during frequency measure command
P4 level 0 +/- 0.1db relative to P1
应答信号指标:
Frequency 1090 MHz with +/- 3MHz bandwidth
Power Measurement -10 to +18 dbm range at antenna port
With 40db (pad or path loss) gives 30 to 58 txpdr power out range
Reads to +/-1.5 dbm accuracy
MTL Measurement -44 to -12 dbm signal out at antenna port
With 40db (pad or path loss) gives -94 to -52 dbm txpdr input
Auto reads MTL +/- 2 dbm
% Reply reads out 0 to 100% +/-0.5%
Delay P3 to F1 2.5uS to 3.5uS window for F1
Squawk ID All 12 bits [0 to 4095 code]
Altitude read All 12 bits [-1000' to 50,000' with 100' resolution]
Pulse Width Displayed with 50nS resolution
SPI Displays ID message if detected
X pulse Must read=0 for valid receive message