Apr 2, 2009 #1 S sanddune008 Newbie level 6 Joined Aug 28, 2008 Messages 12 Helped 1 Reputation 2 Reaction score 0 Trophy points 1,281 Activity points 1,360 what does tx and rx mean Hi All, • Rx current 39mA • Tx current 39mA Should Rx and Tx current drawn be less to improve the power efficiency? • Receiver sensitivity -97dBm What does Decibels /meter mean?Should this be more negative for a better sensitive TX or RX? • Transmit power +3dBm Should this value be higher to have a better range(distance)? Thanks in advance
what does tx and rx mean Hi All, • Rx current 39mA • Tx current 39mA Should Rx and Tx current drawn be less to improve the power efficiency? • Receiver sensitivity -97dBm What does Decibels /meter mean?Should this be more negative for a better sensitive TX or RX? • Transmit power +3dBm Should this value be higher to have a better range(distance)? Thanks in advance
Apr 2, 2009 #2 V vfone Advanced Member level 6 Joined Oct 10, 2001 Messages 5,709 Helped 1,616 Reputation 3,237 Reaction score 1,248 Trophy points 1,393 Activity points 36,250 For RX/TX battery usage, 39mA is more than acceptable value. -97dBm represents a usual value for receiver sensitivity (negative is fine). dBm means: https://en.wikipedia.org/wiki/DBm Yes, if TX power is greater than +3dBm you get better range. But the DC power consumption will be higher.
For RX/TX battery usage, 39mA is more than acceptable value. -97dBm represents a usual value for receiver sensitivity (negative is fine). dBm means: https://en.wikipedia.org/wiki/DBm Yes, if TX power is greater than +3dBm you get better range. But the DC power consumption will be higher.