Kenwood TS-480 manual TX IMD output 200W

Page 9

Fig. 1 illustrates TX IM characteristics with 200W output at 14MHz, while the second graph (Fig. 2) charts high-frequency spurious emissions.

Fig. 1: TX IMD (output 200W)

Fig. 2: TX Spurious emissions

9

Image 9

Contents Page TS-480HX TS-480SAT Design Objectives Determination to create a unique transceiverBack to basics The appeal of HF lies in DX’ing Standalone control panel Focus on basic performance200W challenge Overview of the TS-480 Series Adding appeal to fixed station operationsDevelopment Objectives for the TS-480 Series TS-480 concept began with development of the TS-570?Achieving 200W output in a compact transceiver Focusing on HF TX circuits 200W final section CircuitryTX IMD output 200W SPS schematic diagram SPS separate power sources TS-480HX onlyFailsafe device some TS-480HX versions only 100W final sectionAntenna tuner TS-480SAT 200W final section FM circuit FM modulation block diagramRX 1st mixer RX circuitry Front endRX dynamic range RX sensitivity Jumpers for joy Comparison of optional CW filters 500Hz Circuitry after the roofing filterOption installation unit Features useful for 50MHz operations Auxiliary FeaturesFeatures useful for mobile operations Full compatibility with digital modes data modesNew 5MHz band Features of the Built-in DSP DSP circuitIdeal for mobile operations DNL Demonstrates how ignition noise is reduced by the DNL Noise reductionNR OFF BC OFF Beat cancelRX DSP filters Switching Width During CW operations CW auto tune RX equalizer & TX equalizerTS-480 menus TipsDSP Useful if you want to go on to tune FSK APO Functions that can be assigned to PF keys Assigned Use Split Quick menu Making menus easier to use Menu switchingInternal structure of the main unit Structural FeaturesCooling Cooling diagramUpper side Temperature rise around final transistors Page Design concept New Option Voice Guide & Storage Unit VGS-1 Constant recording functionMessage recording/playback function Configuration mode for TX output, etc ResetMenu settings Split mode Voice GuideVFO mode, direct frequency entry Other featuresMemory channel Variable Voice Guide speedMain functions KNS addedButton layout & basic operation CW keying Changing memory and registered detailsReading and writing files Compatibility with KNS Kenwood Network Command SystemAccidental continuous TX Setting up KNS on the Arcp sidePage Using a broadband router New Option ARHP-10 Amateur Radio Host Program Freeware Checking LAN settingsUser setup Adjust PC volumePage Network & Operations Problem Solution TroubleshootingCannot get KNS to work Sound Problem Solution Connect a microphone to the computer and bring up TS-480 In-Depth Manual