User's Manual

KP Electronic Systems, Ltd.
WER2
–
User Manual
Rev: 0.
2
Page
4
of
9
K P P r o p r i e t a r y I n f o r m a t i o n
1. General:
The WER2 is used a water meter register that includes a magnet accelerator countin, LCD displpay,
sensors e.g. tilt and RF modem which holds the RF communication between he RMR and the metering
devices. The interface with the PC is done through wireless 2.4GHz short range communication. The
WERE2 radio is high power 1W UHF radio covers the 430 to 470MHz RF band. The WER2 is power from 2
AA bateris which are connected in serial.
2. Radio Specification:
a. General
• Battery voltage Internal 3.4 v …….. battery.
• Operating temp. -30 C°+50 C°
• Weight ……. mg
• Housing material Metal, glass, PVC
• Mechanical dimension at paragraph 13
b. UHF
• Rx/Tx Frequency bands:
• UHF Freq range………………………430-470.275MHz
• Tx Pout……………………….….… 1W+/-10%
• Rx sensitivity……………………… -117 dB
• Selectivity………………………..… -40dBc
• Supply voltage……………………... 3.4v typical. Min/max = 3.0/3.6Vdc
• RF data rate ……….………….……. 2.4K / 4.8K / at 6.25 Sp.Channel channels.
• GUP data rate ………………………..9.6Kbps
• RF freq set by GUP.
• Tx current……………………………670 ma
• Rx current……………………………. 22 mA Peak Currentin.