ssb basics

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SSB Basics. La Cruz Marina 12/27/13. About Me – David DeLong. 40 years radio experience At 13 youngest to get extra class license & built my own transmitter Work for for 28 years Started out as a hardware engineer - PowerPoint PPT Presentation

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PowerPoint Presentation

SSB BasicsLa CruzMarina12/27/13About Me David DeLong40 years radio experienceAt 13 youngest to get extra class license & built my own transmitterWork for for 28 yearsStarted out as a hardware engineerInvolved in all aspects of the business - VP for most departments Sales, Product Management, Most recently EngineeringCurrently on 2 year venture on our sailboat ApsarasMy rig Icom 718

Plan for TodayFew slides and info preparedIll ask on each topic whether there are people interested to make sure we focus on areas of interestIntended to be casual conversation so holler out with questionsPlus lots of time for questions at the end

Dont sweat taking notesWill publish this presentation on our blog site links page www.svapsaras.comAgendaWhy SSBHAM vs. MarineLicensingSystem componentsNoise sourcesPropagationTransceiver OperationChannels vs frequenciesAntenna tuningRIT/ClarifierEmergency ChannelsPopular netsData/emailWeather chartsMy favoritesCheap NavigationLightning Protection

Why SSB?Not a substitute for VHF FMLong range communicationReliable 50-150 milesSlightly tricky: 1000s milesSlow speed data capabilitiesWeather chartsEmailFills the gap between VHF and satellite with no airtime cost

Why not?Satellite coming down in costCoast Guard HF infrastructure nearing end of life

HAM vs MarineHAM prosMore people on land to talk toFree email (winlink)HAM consTest required for licenseNo reciprocal privileges for US in MexicoCannot use Marine frequenciesNot a substitute for Marine

LicensingSSB requires 2 licensesStation licenseGood for 10 yearsAssigns MMSI and call sign to your boatOperator licenseRestricted Radiotelephone (RR)Good foreverFile online using FCCs ULS

System ComponentsTransceiverTunerAntennaGround systemOptionalModem for emailTransceiverIcom 802 appears most popular systemComes with control head separate from transceiver itself

TunerMost are automaticShould be near antenna and groundRadio can be anywhere

Automatic tuners may take out the first moments of your transmission. So key up on the frequency you want for a bit before you start talking.12AntennaWhipSome have traps that work like a tunerBackstayRandom length requires a tunerWatch out high voltages cause RF burnsEmergencya 14 gauge wire is very effectiveGroundingControversial subjectSome recommend 25-75 square feet of copper foil strap in your bilgeOthers run a copper foil to a thru-hullI use the KISS-SSB counterpoise

Noise SourcesUnlike VHF FM, HF SSB is very sensitive to noiseInverterMotorsComputersFlorescent lightsSome LEDsWireless router

PropagationIonosphere excited by the sunRadio waves absorbed or bounced (skip)

Ground wave 50-150 milesLower frequencies bend over horizonLower frequencies go furtherFrequencies up to about 4 MHz absorbed by the D layer during the day inhibiting skipSky wave (skip) can be worldwideHigher frequencies go further (up to a point) MUF comes down at nightto about 10-12 MHzD layer goes awayenabling low freq skipPropagation Ground or Sky WavePropagation Summary

Effects on PropagationTime of daySun spots11 year cycle (peaked this year)Excites the F layer improving skipSolar flaresExcites the D layer increasing absorptionOtherGeomagnetic storms, lightning, EMP

Sun Spots

How to test PropagationHAM channel 14,300Is almost always active. Even if you arent a HAM you can listen in and see who you can hear.Atomic clock time - National Institute of Standards & Technology's (NIST) continuously transmits on 2.5, 5, 10, 15 and 20 MHz. WWVH in Kauai, Hawaii female voiceWWV in Fort Collins, Colorado - male voiceThey also transmit severe oceanic weather warnings

Radio OperationChannels/FrequenciesAntenna TuningAuto/ManualClarifier/RIT

Emergency ChannelsDigital Selective Call (DSC): 2,187.5, 4,207.5, 6,312, 8,414.5, 12,577, 16,804.5 kHzUse HAM frequencies in an emergency14,300 is almost always activeThese simplex frequencies are used for distress and safety communications but are not normally guarded. 2182, 4125, 6215, 8291, 12290, 16420 kHz

Simplex Channels2182 is the CH 16 of HF

4 MHz 6 MHz 8 MHz 12 MHz4146 6224 8294 12,353 4149 6227 8297 12,356 6230 12,359 12,362 12,36516 MHz 18/19 MHz 22 MHz 25/26 MHz16,528 18,825 22,159 25,100 16,531 18,828 22,162 25,10316,534 18,831 22,165 25,10616,537 18,834 22,168 25,10916,540 18,837 22,171 25,11216,543 18,840 22,174 25,11516,546 18,843 22,177 25,118GenerallyGood during the day for ground wave 50 to 100 miles & at night for sky wave for longer distancesGood during the day for sky wave longer distancesPopular NetsLocal time (GMT -6 hours)Time Freq Notes0730 6212 Picante0800 6212* Amigo Mexico and Puddlejump *May change to 62270830 3968 Sonrisa HAM (LSB)1500 21412 Pacific Maritime Mobile HAM1900 6516 SouthboundAll 14300 Pacific Seafarers Net

Email

WinLink doesnt allow ANY commercial use not even please sell my stocks26Weather

Cheap Navigation

Lightning Protection

http://techprotectbag.com/for portable electronics

Questions?lakelimerick@comcast.net