REACH

The REACH (Reverse Enhanced Access Channel) is used where a mobile station transmits an Enhanced Access preamble and an Enhanced Access header in the Enhanced Access probe.

1. General	2.Frame
State	Frame Length
Power	Frame Offset
Radio Configuration	EbNo
Data
Walsh Code
Walsh Code Length
Bit Rate
Channel Coding
BER Insertion
FER Insertion

Buttons

	This button sets all channels to equal power, and the total power to 0 dB. [:SOURce]:RADio:CDMA2000[:BBG]:REVerse:PADJust EQUal|SCALe
	This button scales all of the current channel powers so that the total power equals 0 dB, keeping the previous power ratios between the individual channels.
	Click the button to display the Code Domain Power (CDP) graph. This graph shows the position and power level of each channel, relative to the Walsh Code applied. After clicking this button, the button name changes to Hide Graph.
	Click the button to close the graph. After clicking this button, the button name changes to Show Graph.

Toggles between two code order display formats, Hadamard and Bit Reverse.

Hadamard uses an algorithm that displays each Walsh code in sequence and the composite representation of the traffic channel.

Bit Reverse uses an algorithm that displays the channels as a bar for each channel with the bar height proportionately representative of the channel power and the bar width proportional to the data rate.

1. General

State

Choice: On | Off

Sets the operating state of the channel.

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh[:STATe] ON|OFF|1|0

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh[:STATe]?

Power

Range: -40 to 0 dB

Sets the power of the channel in dB.

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:POWer <val>

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:POWer?

Radio Configuration

Choice: 3 | 4

Sets the Radio Configuration of the channel.

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:RCONfig 3|4

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:RCONfig?

Data

Choice: PN9 | PN15 | Pattern | UserFile

Default: PN9

Edit the data pattern for the Reverse Fundamental Traffic Channel (RFCH) by clicking on the cell. Then click on the dialog box icon to launch the selection dialog box.

Set the data of the channel. In the User File case, 0,1 txt file or binary file can be selected as the data source.

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:DATA PN9|PN15|FIX4|"<file name>"

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:DATA?

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:DATA:FIX4 <val>

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:DATA:FIX4?

Walsh Code

Display walsh code of the channel.

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:WALSh?

Walsh Code Length

Display the walsh code length of the channel.

Bit Rate (bps)

Display the bit rate of the channel.

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:RATE 9.6kbps|19.2kbps|38.4kbps

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:RATE?

Channel Coding

Choice: All On | All Off

Sets the channel code state of the channel.

If the coding state is off, the channel will be no channel coding and interleaver.

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:CCODing ON|OFF|0|1

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:CCODing?

BER Insertion

Range: 0% to 50%

Sets the bit error rate of the channel.

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:BER <val>

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:BER?

FER Insertion

Range: 0% to 100%

Sets the frame error rate of the channel.

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:FER <val>

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:FER?

2.Frame

Frame Length (ms)

Choice: 5 | 10 | 20

Sets the frame Length of the channel.

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:ACCess:REACH:FLENgth?

Frame Offset (ms)

Choice:

Frame Length = 5ms: Range: 0 to 3

Frame Length = 10ms: Range: 0 to 7

Frame Length = 20ms: Range: 0 to 15

Frame Length = 40ms: Range: 0 to 31

Frame Length = 80ms: Range: 0 to 63

Sets the frame offset of the channel.

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:FOFFset <val>

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:FOFFset?

EbNo

Range:

Min: -30 + 10log10(ChipRate/BitRate) + NormalizedPower dB

Max: 30 + 10log10(ChipRate/BitRate) + NormalizedPower dB

Sets the Eb/No of the channel.

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:EBNO <val>

[:SOURce]:RADio:CDMA2000[:BBG]:REVerse:RC34:EACCess:REACh:EBNO?