SPECIFICATION
One of the major features of the Glensound Electronics commentators equipment is
its use of a single coaxial cable to connect each box to the base station. This cable must
meet certain specifications for the system to perform correctly. The loop resistance, the
delay and the frequency response of the cable are the limiting features. To enable
customers to determine the suitability of any cable the following is the specification to
be met by the total length of cable between any commentators box and the base station.
LINK SPECIFICATION
Connectors are: UHF fixed sockets (BNC to special order)
Cable Impedance 75ohms
Maximum DC loop resistance 22ohms
Maximum delay 2.5microseconds
Maximum attenuation 15dBs at 10MHz
This equipment has been tested with several different proprietary cables.
SATISFACTORY CABLES
1) Heavy Duty Cables for use up to a full 500 metres
BBC Code PSF1/2M
Brand Rex GT-651
Canford Audio 36-362
2) Lighter Duty Cables suitable for use up to 250 metres
BBC Code PSF1/3M
Brand Rex GT-851
Canford Audio 36-366
3) An Extra Flexible light duty cable available in several colours and suitable for use up to 250 metres
Canford Audio 36-372 Red
36-374 Yellow
36-375 Green
36-376 Blue
LINKS TO SPECIFICATIONSCommentators Box Type GSOC24 Commentators Bast Station Type GSOC26
OTHER COMMENTATORS EQUIPMENT PAGES