Table of Contents
Advertisement
61280.003L1-1B
I
NTRODUCTION
The Tracer provides dual T1 transport by way of a spread spectrum
microwave link for distances up to 20 miles or more depending
on path engineering. System performance is determined, in part,
by the engineering of the microwave link. Each end of a Tracer
link is composed of two units -- the baseband processor (BBP)
and the radio frequency converter (RFC). Two DS1/DSX-1 (T1)
interfaces are provided on the rear of the BBP, which can be
mounted in a 19" rack. The DS1/DSX-1 interface provides
connections up to 6000 feet from T1 equipment. A single coaxial
cable connects the BBP to the RFC and another connects the RFC
to the antenna.
ISM B
S
AND
The Federal Communications Commission (FCC) has established
several portions of the radio frequency (RF) spectrum for use in
Industrial, Scientific, and Medical (ISM) applications. Part 15.247
of the FCC rules describes the requirements of systems that operate
in these bands. The three bands set aside, 902-928 MHz,
2400-2483.5 MHz, and 5725-5850 MHz, are designated for use
by spread spectrum transmitters, either frequency hopping or
direct sequence. The Tracer operates in the 2400 to 2483.5 MHz
band using direct sequence spread spectrum (DSSS) transmission.
4/12/99
T
S
1
ECTION
S
PREAD
PECTRUM
D
RACER
ESCRIPTION
P
1
AGE
Advertisement
Table of Contents
Troubleshooting
