User's Manual

Page 28

E Series Data Radio – User Manual

Optimising the Antenna for best RX

signal

Once the unit is operational, it is important to optimise the antenna

tuning.

In the case of a directional antenna, it will be necessary to align the

antenna for the best received signal.

This can be done by using the (0-5Vdc) output on Pin 9 of Port B

to indicate signal strength (RSSI). This voltage can be converted to

dBm using the chart below.

LED Indicators & Test Outputs

Radio is Powered

If all the LEDs are off, no power is reaching the radio modem.

Successful power-up is indicated by the “PWR” LED indicating a

continuous (healthy) GREEN state. Note that this LED is turned

RED when the transmitter is active.

LED Legend

Part E – Getting Started- ER450

Radio Errors

Internal radio management software monitors many aspects of

the radio hardware. Under certain circumstances radio faults may

prevent normal operation. In the event that these fault conditions

occur, the radio will enter an ERROR state and this will be

indicated by ﬂashing ALL LEDs RED, then ﬂashing a pattern of

GREEN LEDs. The pattern of all GREEN LEDs represents the

speciﬁc type of error that has occurred. See Table below.

All other patterns indicate serious hardware errors. Please record

this pattern and return the result with the service return information.

Note (1): If external voltage is too high (>16Vdc) radio damage

may occur. If the external voltage is too low (<10Vdc) the radio

may not operate within speciﬁcations.

Note (2) and (3): If the radio receiver or transmitter frequencies

are programmed outside the speciﬁed frequency ranges (model

type dependent), then normal radio operation may not be possible.

In this case, use TVIEW+ to set the receiver and/or transmitter

frequencies to be within the speciﬁed range. If this error occurs and

the frequencies are within the speciﬁed frequency ranges (model

type dependent), the radio will need to be returned for service.