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QPX1-154-5-12K5-FCC-EAS PDF预览

QPX1-154-5-12K5-FCC-EAS

更新时间： 2024-02-05 21:00:03
品牌 Logo 应用领域
RADIOMETRIX /
页数 文件大小 规格书
7页 145K
描述
2 Watt Multi-channel VHF Transceiver

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中文翻译

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QPX1-154-5-12K5-FCC-EAS 数据手册

 浏览型号QPX1-154-5-12K5-FCC-EAS的Datasheet PDF文件第1页浏览型号QPX1-154-5-12K5-FCC-EAS的Datasheet PDF文件第2页浏览型号QPX1-154-5-12K5-FCC-EAS的Datasheet PDF文件第4页浏览型号QPX1-154-5-12K5-FCC-EAS的Datasheet PDF文件第5页浏览型号QPX1-154-5-12K5-FCC-EAS的Datasheet PDF文件第6页浏览型号QPX1-154-5-12K5-FCC-EAS的Datasheet PDF文件第7页 
6. This is a 2 watt output product. Good grounding , good quality aerials, properly mounted, and a  
low impedence power supply are required if full performance is to be reliably obtained.  
Be aware of the effect that the strong RF fields generated by this device (and it's aerial) can  
have upon other adjacent circuitry if this is not properly screened, filtered or otherwise protected.  
Regulators, sensitive analogue circuitry, and microprocessors seem especially interference  
prone.  
Two watts of RF at VHF can cause an unpleasant and painful burn. Be careful.  
7. Caution:. The TXD and P1-P3 inputs are not high voltage tolerant. Low voltage logic, or  
switches to ground, are required.  
8. A simple RS232 voltage tolerant transistor inverter connects pin 14 to PGM  
9. Depending on the firmware, some versions use P0-P3 as parallel select. Others use P0 as a  
programming input only, and P1-P3 as parallel inputs. Refer to tech support for details.  
10. Enable pin (4) may be tied to +Vin  
11. Overall thermal power dissipation in normal use is around 4 watts, rising to 6-7 watts under  
aerial fault conditions.  
12. This design uses the SMX1 mk2 transceiver RF board as an internal component  
13. For visual reference, this unit uses an Evatron-type REAS120 extrusion  
User interface: Modem mode  
The 'modem' mentioned is a 1200 baud RS232 semi-intelligent unit (Transmit keyed when valid serial data is  
present, so no separate TX control needed. Coding in the datastream also permits the receiver to ignore  
noise and only output valid serial data) This is a half duplex unit, so collisions between transmitted and  
received packets must be dealt with by the user.  
Pin  
Name  
Function  
1
NC  
Leave open  
2
TXE  
Open = normal modem operation. Low = constant TX (for test). 10K pullup to 5v  
Leave open  
3
NC  
4
ENABLE  
RSSI  
AF out  
NC  
Overall unit 'on' (high active, high voltage tolerant)  
DC level between 0.5v and 2.5v. 60dB dynamic range  
200mV p-p audio. DC coupled, approx 1v bias. Muted by squelch  
Leave open  
5
6
7
8
NC  
Leave open  
9
0V  
Ground  
10  
11  
12  
13  
14  
15  
(tba)  
Leave open  
MOD RXD  
MOD TXD  
PGM  
PGM  
Vcc  
inverted "RS232" data out (to inverting buffer like MAX232)  
RS232 data input (true). 10K pullups to 5v  
inverted version of pin 14  
Serial programming/control input (true RS232)  
12V DC supply (11-15V). 550mA typ. current drain  
Radiometrix Ltd  
QPX1 Data Sheet  
page 3  
1234567

中文翻译

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