User's Manual

ManualsBrandsWestell ManualsCell PhonesTHE CO-PILOT IS DESIGNED TO IMPROVE LOCATION ACCURACY OF CELL PHONES AND WIRESS DEVICES OUTDOORS WITHIN BUILDINGS

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The Pilot Beacon can transmit up to eight simultaneous CDMA2000 signals for a Cell band unit and eleven for a PCS band unit. The

carrier frequency for each signal is set by entering the desired CDMA channel number for that signal.

Thus, there are eight or eleven Channel Number • elds, one for each of the possible signals.

The CDMA channel number is a unitless integer value with a split range of 1 to 799 and then 991 to 1023 for cell band, 1 to 1199 for PCS

band and 1-899 for AWS band. Duplicate channel numbers are not allowed.

Beacon Control

The default values for the Cell Band are:

Signal 1: CDMA Channel 384

Signal 2: CDMA Channel 425

Signal 3: CDMA Channel 466

Signal 4: CDMA Channel 507

Signal 5: CDMA Channel 548

Signal 6: CDMA Channel 589

Signal 7: CDMA Channel 770

Signal 8: CDMA Channel

729

The default values for the PCS Band are:

Signal 1: CDMA Channel 1

Signal 2: CDMA Channel 2

Signal 3: CDMA Channel 3

Signal 4: CDMA Channel 4

Signal 5: CDMA Channel 5

Signal 6: CDMA Channel 6

Signal 7: CDMA Channel 7

Signal 8: CDMA Channel 8

Signal 9: CDMA Channel 9

Signal 10: CDMA Channel 10

Signal 11: CDMA Channel 11

Each of the eight or eleven signals can be individually turned on or off. There is one transmit enable • eld for each signal.

Signal Transmit Enables

PN Offset

The PN Offset is a unitless integer value with a range of 0 to 511. The default value is zero.

Tau is a real value in units of microseconds with a range of 0 to 5.2 µsec and two decimal places of precision. Internally the value will be

rounded to the nearest 1/40

of a CDMA chip. The test equipment reads “Tau” as follows: Positive tau means the signal is llate. Nega-

tive is opposite. The tau “setting” on the unit works as follows: Positive tau is “back to the future” which means it creates the RF signal at

a sooner time than zero tau. Negative tau is opposite. When one sees a positive tau on the test equipment, and wishes to “zero” it, the

value of tau in the UI must be reduced to “zero it”.

Pilot Beacon Per Channel Transmit Power

This setting controls the CDMA Channel Power output by the Pilot Beacon for each carrier. All enabled carriers are transmitted at the

same power level. The total transmit power will be the sum of the power of all enable carriers. The user must set this power level such

that the total transmit power does not exceed the speci• ed maximum transmit power for the Pilot Beacon.

The Output Power is speci• ed in dBm with a range of 0.5 to 19.0 and a resolution of 0.5.

Composite Transmit Power

Composite output power is a display only • eld. The value is calculated from the Per Channel Tx Power and the number of channels that

are enabled.

There are three alternatives for the timing reference source.

GPS 1 Pulse Per second (default)

GPS Even Second Sync

External Even Second Sync

Tau (Delay Correction)

Timing Reference Selection

The default values for the AWS Band are: