lothians radio society gm3ham · lrs_promotional_powerpoint5 author: user created date: 10/21/2010...
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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
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Welcome to the Welcome to the LothiansLothians!!
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Meetings on 2Meetings on 2ndnd & 4& 4thth WednesdaysWednesdays
Braid Hills Hotel, EdinburghBraid Hills Hotel, Edinburgh
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Talks Talks –– Border Search & Rescue UnitBorder Search & Rescue Unit
Photo courtesy BSARU
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Talks Talks –– Military ElectronicsMilitary Electronics
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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
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Talks Talks –– Microelectronics TechnologyMicroelectronics Technology
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Talks Talks –– Central Scotland Repeater GroupCentral Scotland Repeater Group
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Talks Talks –– Aviation ElectronicsAviation Electronics
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Surplus Equipment (Junk) SalesSurplus Equipment (Junk) Sales
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Surplus Equipment (Junk) SalesSurplus Equipment (Junk) Sales
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Christmas Curry NightChristmas Curry Night
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Visits to Museum of CommunicationVisits to Museum of Communication
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Visits to Museum of CommunicationVisits to Museum of Communication
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LRS at LRS at CockenzieCockenzie Junk NightJunk Night
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LRS at LRS at BlackpoolBlackpool RallyRally
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D/F HuntD/F Hunt
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D/F HuntD/F Hunt
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D/F Hunt D/F Hunt –– ““FoxFox”” StationStation
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Annual BarbecueAnnual Barbecue
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Annual BarbecueAnnual Barbecue
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Annual BarbecueAnnual Barbecue
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Contest Trophy Winners !Contest Trophy Winners !
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Field Day in the 1950sField Day in the 1950s
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Field Day in the 1960sField Day in the 1960s
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Current Contests Site Current Contests Site –– Gatehouse of FleetGatehouse of Fleet
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Microwave Contest 2010Microwave Contest 2010
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Microwave Contest 2010Microwave Contest 2010
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Microwave Contest 2010Microwave Contest 2010
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Microwave Contest 2010Microwave Contest 2010
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Microwave Contest 2010Microwave Contest 2010
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Microwave Contest 2010Microwave Contest 2010
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VHF NFD 2010VHF NFD 2010
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VHF NFD 2010VHF NFD 2010
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VHF NFD 2010VHF NFD 2010
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VHF NFD 2010VHF NFD 2010
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VHF NFD 2010VHF NFD 2010
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VHF NFD 2010VHF NFD 2010
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VHF NFD 2010VHF NFD 2010
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VHF NFD 2010VHF NFD 2010
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Pub Nights Pub Nights –– Come and Join Us!Come and Join Us!
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Pub Nights Pub Nights –– Come and Join Us!Come and Join Us!