tr1m-151-5 Radiometrix Ltd, tr1m-151-5 Datasheet
tr1m-151-5
Related parts for tr1m-151-5
tr1m-151-5 Summary of contents
Page 1
... Data bit rate: 5kbps max. (standard module) Receiver sensitivity: -118dBm (for 12 dB SINAD) Radiometrix Ltd Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233 channel VHF Transceiver channel VHF Transceiver channel VHF Transceiver Figure 1: TR1M-151-5 VHF transceiver TR1M Data Sheet TR1M page 1 ...
Page 2
... Radiometrix Ltd TR1M Data Sheet page 2 ...
Page 3
... TR1M receiver section inverts the sense of the baseband stream logical inversion is present between input of TX and output of RX. 2. Carrier detect on TR1M mutes the AF Out and RXD outputs. It can be factory disabled. 3. All the open collector outputs must be connected to Vcc/+4.4V out via a pull-up resistor. ...
Page 4
... TR1M serial configuration commands 2400 baud RS232. 8 bit data, no parity, 1 start bit stop bits, No flow control SINGLE nnnnn Set value of N for single channel operation GOCHAN xx Serial select of channel 127) LOADMX xx Set highest permitted (serial selected) channel xx (others default to ch0) ...
Page 5
... CDE Pull low to enable carrier detect on receive operation (not recommended) TR1Ms on both ends should be configured to required operating frequency using GOCHAN command before starting to use the internal 1200 baud modem, because the P1-P3 pins will be used as Modem Data pins and the modem will operate on the last serially selected channel after SETMOD command is used to enable the Modem ...
Page 6
... FM, FSK (F1D, F3D) DC – 3kHz -37dBm analogue, data (CMOS/TTL compatible) -118dBm for 12dB SINAD -70dB -85dB <-65dB (Tested per. ETSI EN 301 489-3 RSSI, carrier detect, audio, data 28ms 45ms 50ms (with or without mute) TR1M Data Sheet ο C) page 6 ...
Page 7
... LED used. TR1M can be configured using any PC/Laptop/PDA having a serial port and modem/terminal program. TXD (pin 3) of DB9M connector can be directly wired to PGM (pin C10) of the TR1M and SGN (pin 5) of DB9M connector should be either connected to common ground or pin C9 of the TR1M. ...
Page 8
... Figure 6: Typical RSSI voltage variation with respect to RF level at TR1M If the microcontroller has a built-in Analogue to Digital Converter (ADC), the Received Signal Strength Indicator (RSSI) output voltage level can be read by the microcontroller to estimate its distance from transmitting TR1M unit or identify areas of weak signal reception. ...
Page 9
... Copyright notice This product data sheet is the original work and copyrighted property of Radiometrix Ltd. Reproduction in whole or in part must give clear acknowledgement to the copyright owner. Limitation of liability The information furnished by Radiometrix Ltd is believed to be accurate and reliable. Radiometrix Ltd reserves the right to make changes or improvements in the design, specification or manufacture of its subassembly products without notice ...