Motorola BLE100 operation manual Amplifier Setup

8Check the amplifier output tilt by measuring the high band- and low band-edge carriers.

ƒHigh = channel 116 (745.25 MHz), channel 136 (865.25 MHz), or channel 158 (997.25 MHz)

ƒLow = channel 2 (55.25 MHz) or channel 3 (61.25 MHz)

ƒIf the tilt is less than required, install a higher value input equalizer.

ƒIf the tilt is greater than required, install a lower value input equalizer.

ƒIf the high value equalizer provides too much tilt and the low value equalizer provides too little tilt, use the lower value equalizer. Under-equalization is preferred to over-equalization.

If the amplifier was set up using an SCS-*, the JXP input pad must be increased or decreased by the amount of change made in the SCS-* value. Therefore, to maintain a proper gain level, it is necessary to adjust the input pad value as follows:

ƒFor each increase in SCS value, decrease the input pad by 1 dB.

ƒFor each decrease in SCS value, increase the input pad by 1 dB.

ƒIf you replace an SFE with an SCS, reduce the value of the input pad by the value of the SCS.

9Measure the output level at the highest frequency.

It should be within 1 dB of the system design level. If it is not, you must adjust the mid-stage pad (JXP MID) accordingly. Refer to Section 6, “Operating Tips,” for mid-stage padding information and recommendations.

BLE100 Installation and Operation Manual