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The Level Adjust value sets the transmitter output power. The range of this
value is 0 for the lowest power to 57 for maximum power. This command is the
equivalent of the LVL_ADJ line. The table below shows the typical output power
for each level.
NT Series Transceiver Level Adjust Value vs. Typical Output Power
Power Level
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
P 0 (dBm)
12.22
12.12
12.14
11.86
11.85
9.58
9.78
8.94
8.33
8.02
7.42
6.99
6.72
6.33
5.80
Power Level
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
P 0 (dBm)
5.38
4.83
4.33
4.05
3.49
3.11
2.77
2.12
1.65
1.16
0.81
0.38
?0.18
?0.66
?0.93
Power Level
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
P 0 (dBm)
?1.46
?1.84
?2.39
?2.83
?3.27
?3.79
?4.30
?4.85
?5.47
?5.78
?6.12
?6.72
?7.09
?7.52
?7.91
Power Level
12
11
10
9
8
7
6
5
4
3
2
1
0
P 0 (dBm)
?8.36
?8.83
?9.39
?9.13
?9.68
–10.23
?10.86
?11.50
?12.23
?13.04
?13.98
?14.59
?15.78
Figure 9: NT Series Transceiver Level Adjust Value vs. Typical Output Power
The Get RSSI command returns a value that is proportional to the received
signal strength. This command is the equivalent of the RSSI line, but offers
slightly more resolution. This value is a signed byte that can be converted into
a power level with the following formula:
Signal Strength (dBm) = ?1 * [(RSSI Value / 2) ?1]
The Return to Default command returns the module to the factory settings.
Figure 10 shows some examples of the Command Data Interface.
NT Series Transceiver Command Data Interface Examples
Example Messages Input to the Modul e
Read Baud Band
Write Baud Band
Program Baud Band
Example Messages Output from the Module
ACKnowledge Baud Band
No-ACKnowledge Baud Band
0x01 + 0x11 + 0x00 + 0xFF
0x02 + 0x11 + 0x02 + 0xFF
0x03 + 0x11 + 0x04 + 0xFF
0x06 + 0x11 + 0x04 + 0xFF
0x15 + 0x11 + 0xF3 + 0xFF
Returns the current baud band
Temporary (RAM) Baud = Baud1
New (EEPROM) Baud = Baud3
ACKnowledge Baud = Baud3
Value is out of range
Figure 10: NT Series Transceiver Command Data Interface Examples
– 6 –
NT Series Command Data Interface
Reference Guide RG-00101
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相关代理商/技术参数
TRM-900-TT
制造商:Linx Technologies Inc 功能描述:M2M ACCESSORY
TRM-900-TT-250
制造商:Linx Technologies Inc 功能描述:M2M ACCESSORY
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功能描述:射频模块 915 MHz Wireless Module DP1203
RoHS:否 制造商:Linx Technologies 产品:Transceiver Modules 频带:902 MHz to 928 MHz 输出功率:- 15.5 dBm to + 12.5 dBm 接口类型:UART 工作电源电压:- 0.3 VDC to + 5.5 VDC 传输供电电流:38.1 mA 接收供电电流:22.7 mA 天线连接器类型:U.FL 最大工作温度:+ 85 C 尺寸:1.15 mm x 0.63 mm x 0.131 mm
TRM-915-DP1205
功能描述:射频模块 915 MHz Wireless Module DP1205
RoHS:否 制造商:Linx Technologies 产品:Transceiver Modules 频带:902 MHz to 928 MHz 输出功率:- 15.5 dBm to + 12.5 dBm 接口类型:UART 工作电源电压:- 0.3 VDC to + 5.5 VDC 传输供电电流:38.1 mA 接收供电电流:22.7 mA 天线连接器类型:U.FL 最大工作温度:+ 85 C 尺寸:1.15 mm x 0.63 mm x 0.131 mm
TRM-915-DTS
功能描述:射频模块 915 MHz Wireless Module DTS North Am
RoHS:否 制造商:Linx Technologies 产品:Transceiver Modules 频带:902 MHz to 928 MHz 输出功率:- 15.5 dBm to + 12.5 dBm 接口类型:UART 工作电源电压:- 0.3 VDC to + 5.5 VDC 传输供电电流:38.1 mA 接收供电电流:22.7 mA 天线连接器类型:U.FL 最大工作温度:+ 85 C 尺寸:1.15 mm x 0.63 mm x 0.131 mm
TRM-915-DTS-BRZ
功能描述:射频模块 Module DTS Brazil
RoHS:否 制造商:Linx Technologies 产品:Transceiver Modules 频带:902 MHz to 928 MHz 输出功率:- 15.5 dBm to + 12.5 dBm 接口类型:UART 工作电源电压:- 0.3 VDC to + 5.5 VDC 传输供电电流:38.1 mA 接收供电电流:22.7 mA 天线连接器类型:U.FL 最大工作温度:+ 85 C 尺寸:1.15 mm x 0.63 mm x 0.131 mm
TRM-915-DTS-FCC
功能描述:射频模块 915 MHz Wireless Mod DTS FCC ST conn
RoHS:否 制造商:Linx Technologies 产品:Transceiver Modules 频带:902 MHz to 928 MHz 输出功率:- 15.5 dBm to + 12.5 dBm 接口类型:UART 工作电源电压:- 0.3 VDC to + 5.5 VDC 传输供电电流:38.1 mA 接收供电电流:22.7 mA 天线连接器类型:U.FL 最大工作温度:+ 85 C 尺寸:1.15 mm x 0.63 mm x 0.131 mm
TRM-915-DTS-FCC-RA
功能描述:射频模块 915 MHz Wireless Mod DTS FCC RA conn
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