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6.3.4.6 Unlisted Amplifiers

PTT

Connectanappropriatecablebetweentheradio'sPTToutputandthetuner'sPTTInputAorBjack.Most

radioshaveaPTTinterface.However,itisessentialtocheckyourmanualtodeterminethekeyingvoltageand

current,especiallywitholderradios.TheTunerGeniusXLPTTlinesare

opto‐isolated,buttheywillnottolerate

highvoltagesoranACvoltage.Therefore,bepreparedtoprovideakeyingbufferrelaydesignedforthetask,

liketheAmeritron™ARB‐704amptotransceiverinterface.

i–Someoperatorschoosetouseakeyingbufferinallcasesas"insurance"

topreventanypossibledamage

totheexciterortunerduetopossibletransientvoltagespikesorRFingress.

BandData

Mostradiosuseoneoftheseprotocolstosendbanddatatoexternaldevices:

 BCD/PTBprotocol

ConnectyourradioorbanddecodertotheBCD/PTBInputA

orBCD/PTBInputBconnectoronthe

tuner.Thisconnectionrequiresnoadditionalconfigurationandworksautomatically.Banddataarriving

ontheBCD/PTBconnectionoverridesothersources.Seesection14.2.7,PTB/BCDConnectorPinout,

foradditionalinformation.Therestrictiondescrib edinsection6.3.1.4,BandDataandFrequency

Measurementbasedrestrictions,

mayapply.

 CATprotocol

Connectyourradio'sCAToutputtotheCATInputAorCATInputBconnectoronthetuner.Then,

configuretheCATprotocoldetailsusingtheTunerGeniusXLWindowsUtility.

 CI‐Vprotocol

Connectyourradio'sCI‐VoutputtotheCI‐V

InputAorCI‐VInputBconnectorusinga3.5mmTSorTRS

connector.ConfiguretheCI‐VprotocoldetailsusingtheTunerGeniusXLWindowsUtility.

 FrequencyMeasurement

TheTunerGeniusXL willmeasureanRFsignal'sfrequencyappliedtooneofitsinputsand

automaticallyswitch

intheappropriateinductorandcapacitorvalues.Thisbandswitchingmodeoften

requiresthatyoudouble‐keybrieflybeforethetransmissiontoallowthetuningsolutionswitchingto

complete.Alsoseesection6.3.1.4,BandDataandFrequencyMeasurementbasedrestrictions,inthis

case.

Pleaseproceedtosection6.5,Testing.

 

FlexRadio Systems Tuner Genius XL User Manual

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