Transmit mode, Norm ack retry – Intermec 6710 User Manual

Page 138

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SECTION 4

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Configuration

4-72

6710 Access Point User’s Guide

Smaller fragments may allow successful operation in an

environment with a high level of interference at the

expense of throughput.

Transmit Mode

Transmit Mode modulates the transmit signal and sets the

bits per second. Settings are:

BFSK
QFSK
AUTO

Setting

Description

BFSK

Binary Frequency Shift Keying. Transmits at 0.8

Mbps per second. Data is transmitted by shifting

between two frequencies to represent one bit of 0

or 1. BFSK has extended range over QFSK at the

expense of throughput.

QFSK

Quadrature Frequency Shift Keying. Transmits at

1.6 Mbps per second. Data is transmitted by shift-

ing among four frequencies to represent two bits of

0 or 1. QFSK has better throughput over BFSK at

the expense of range.

AUTO

(default)

Automatically adapts the bit rate to the error

conditions. The transmit mode is automatically

selected for the best range and throughput.

Norm Ack Retry

Norm Ack Retry is the number of times any unfragmented

frame (QFSK or BFSK) is resent unsuccessfully before

fragmenting. The prompt is:

Range is:
1..255

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