Features overview
Antenna
Pre-installed whip antenna (TCM 320/300U)
External whip or 50 Ω antenna mountable (TCM 300/300U)
Frequency and data rate
868.300 MHz / 125 kbps (TCM 300/320)1) 902.875 MHz / 125 kbps (TCM 300U/320U) 1)
Receiver Sensitivity (at 25°C)
typ. –96 dBm (868MHz)2)
typ. -98 dBm (902MHz)2)
Conducted Output Power @50  3 dBm(868MHz) 1 dBm (902MHz)
Power Supply
2.6 – 3.3 V (TCM 320 / TCM 320U)
2.6 – 4.5 V (TCM 300 / TCM 300U)
Current Consumption
Receive mode: typ. 33mA
Transmit mode: typ. 24mA
Dimensions of PCB
36.5 x 18 x 5.5 mm (TCM 320 / TCM 320U)
22 x 19 x 3 mm (TCM 300 / TCM 300U)
Operating temperature
–25 up to +85°C
Radio Regulations
TCM 300 (max. radiated power +1.4 dBm with whip): RED (EU)
TCM 320 (max. radiated power +3.0 dBm with whip): RED (EU)
TCM 300U/320U : FCC (US) / ISED (CA)