Robert T. Forrest
Engineering at English Tavern Rd, Lynchburg, VA

License number
Louisiana PE.0024337
Issued Date
Apr 30, 1991
Expiration Date
Sep 30, 2007
Category
Civil Engineer
Type
Electrical and Computer Engineer
Address
Address
1556 English Tavern Rd, Lynchburg, VA 24501
LicenseFiles verified this license of Dec 19, 2016 at the Louisiana Engineering Foundation.

Professional information

Robert Forrest Photo 1

Multichannel Radio Telephone System

US Patent:
4281413, Jul 28, 1981
Filed:
Dec 3, 1979
Appl. No.:
6/099551
Inventors:
Robert T. Forrest - Lynchburg VA
Assignee:
General Electric Company - Lynchburg VA
International Classification:
H04B 360
US Classification:
455 34
Abstract:
Phantom signals resulting from intermodulation between a busy channel and an idle channel with idle tone cause scanning radio stations to lock on a phantom idle channel and miss communications. Locking on a phantom idle channel is prevented by transmitting a busy tone on each channel having communication so that any phantom signals resulting from intermodulation will include busy tone. A scanning station is arranged to lock on a channel with only idle tone, and not lock on any channel (real or phantom) with busy tone.

Engineering licenses in Louisiana