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LOTHIANS RADIO SOCIETYLOTHIANS RADIO SOCIETY
GM3HAMGM3HAMEdinburghEdinburgh
Founded in 1947Founded in 1947
Affiliated to the Radio Affiliated to the Radio Society of Great BritainSociety of Great Britain
Welcome to the Welcome to the LothiansLothians!!
Meetings on 2Meetings on 2ndnd & 4& 4thth WednesdaysWednesdays
Braid Hills Hotel, EdinburghBraid Hills Hotel, Edinburgh
Talks Talks –– Border Search & Rescue UnitBorder Search & Rescue Unit
Photo courtesy BSARU
Talks Talks –– Military ElectronicsMilitary Electronics
Talks Talks –– Amateur Digital ModesAmateur Digital Modes
Raised Cosine waveform- smoothly changes from 0 to 1 like a cosine wave, avoiding square-wave switching-noise on phase-change being transmitted.
This provides minimum bandwidth properties
The amplitude changes are used to synchronize the receiver clock
PSK31 WaveformPSK31 Waveform
Talks Talks –– Microelectronics TechnologyMicroelectronics Technology
Talks Talks –– Central Scotland Repeater GroupCentral Scotland Repeater Group
Talks Talks –– Aviation ElectronicsAviation Electronics
Surplus Equipment (Junk) SalesSurplus Equipment (Junk) Sales
Surplus Equipment (Junk) SalesSurplus Equipment (Junk) Sales
Christmas Curry NightChristmas Curry Night
Visits to Museum of CommunicationVisits to Museum of Communication
Visits to Museum of CommunicationVisits to Museum of Communication
LRS at LRS at CockenzieCockenzie Junk NightJunk Night
LRS at LRS at BlackpoolBlackpool RallyRally
D/F HuntD/F Hunt
D/F HuntD/F Hunt
D/F Hunt D/F Hunt –– ““FoxFox”” StationStation
Annual BarbecueAnnual Barbecue
Annual BarbecueAnnual Barbecue
Annual BarbecueAnnual Barbecue
Contest Trophy Winners !Contest Trophy Winners !
Field Day in the 1950sField Day in the 1950s
Field Day in the 1960sField Day in the 1960s
Current Contests Site Current Contests Site –– Gatehouse of FleetGatehouse of Fleet
Microwave Contest 2010Microwave Contest 2010
Microwave Contest 2010Microwave Contest 2010
Microwave Contest 2010Microwave Contest 2010
Microwave Contest 2010Microwave Contest 2010
Microwave Contest 2010Microwave Contest 2010
Microwave Contest 2010Microwave Contest 2010
VHF NFD 2010VHF NFD 2010
VHF NFD 2010VHF NFD 2010
VHF NFD 2010VHF NFD 2010
VHF NFD 2010VHF NFD 2010
VHF NFD 2010VHF NFD 2010
VHF NFD 2010VHF NFD 2010
VHF NFD 2010VHF NFD 2010
VHF NFD 2010VHF NFD 2010
Pub Nights Pub Nights –– Come and Join Us!Come and Join Us!
Pub Nights Pub Nights –– Come and Join Us!Come and Join Us!
