Using the Radio Manager
5000 Mobile Terminal Product Guide (5000-REV2.21)
Chapter 5-39
Note that the PING command “ping –c10 AP15” can be easily set as a command key to save retyping
the command each time a test is conducted.
In general, 2.4 GHz systems are characterized by a rapid decrease in signal quality when the maximum
communications distance is exceeded (as dictated by environmental conditions). If the PING test does
not yield consistent results, and stops before the pre-set number of pings is completed, then the
coverage is likely not sufficient for normal operation.
As well, 2.4 GHz are easily blocked by metallic and non-metallic objects. Ensure that any failure of
the PING test (indicating inadequate coverage) is not simply a small “dead zone” by moving the
terminal several feet to a alternate location and repeat the test.
RADIO STATISTICS SUMMARY
Pressing the F2 key when the Menu Bar is not being used will display a summary of current radio
statistics, which is updated in real time during the display.
Narrow Band & 900 MHz Radio Systems
The following table explains the labels used for the displayed message statistics.
Statistic
Explanation
Rcv msg
The total number of messages received.
for us
The total number of messages directed to the unit
of interest.
Chars
The total number of characters decoded.
Xmtmsg
The total number of messages transmitted from
the unit.
re-xmit
The number of re-transmits the unit had to
perform.
Xmterr
The number of times the unit needed to transmit
but was not ready – most likely a hardware fault.
err:tot
The total number of errors.
Crcerr
Indicates the number of times bits were decoded
but did not match the crc.
Decerr
Only part of the message was decoded.
Tmout
A message was expected but did not arrive –
decoding failed due to radio errors or interference.
Cdoff
The total number of times in which the carrier
detect was active, but no bits were decoded. This
indicates other radio activity.
Glitch
Event count in which the carrier detect went active
for a short period of time due to extraneous radio
activity.
