User's Guide

Solo7 Nano Transmitter
Commercial in
Confidence
Video, Transmitters, Solo7 Nano
Transmitter
100145
Revision: 8.0
Commercial in
Confidence
Page 7-55
No
Name
Options
Notes
1
Bandwidth
Narrowband:
2.5MHz
1.25MHz
625kHz
UMVL:
6MHz
7MHz
8MHz
Cobham Narrowband, Ultra-Narrowband
and Ultra-X modes provide excellent range
and efficient use of available channel
bandwidth.
Cobham Ultra Mobile Video Link modes
provide higher data throughput than
Narrowband by using the same bandwidths
as DVB-T. UMVL will provide an advantage
over DVB-T at C/X-band in short range
mobile environments.
2
Constellation
QPSK, 16QAM,
BPSK and 8PSK
The COFDM constellation in use. On a
sliding scale:
16QAM-more user data, less robust, less
range.
QPSK
8PSK
BPSK-less user data, more robust, more
range.
3
FEC Rate
1/3 or 2/3
This field indicates the forward error
correction (FEC) rate which is being applied.
Think ‘data bits/all bits’
1/3 means 1 bit out of 3 bits is data and
therefore 2 bits are used for error
correction.
Little user data means less picture quality,
but more error correction means a more
robust signal and therefore more range.
2/3 means 2 bits out of 3 bits are data and
therefore 1 bit is used for error correction.
More user data means better picture
quality, but less error correction means less
robust signal and therefore less range.