Kenwood Unlock the Power of DSP Technology in TS-480 for Enhanced Communication

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Features of the Built-in DSP

●DSP circuit

The digital signal processor equipped on the TS-480 is the 16-bit fixed-point TMS320VC5402 from Texas Instruments, which offers excellent value for the money. Running at 100MHz, it provides double-precision arithmetic operations (equivalent to 32-bit processing), making it more than capable of serving as an AF DSP. Thanks to this, the TS-480 offers many powerful features of use in HF operations.

● Ideal for mobile operations: DNL

NEW

When you hear the crackling of ignition and other types of pulse noise, it is possible to remove it using the noise blanker (NB); however, this does not work in all cases. Depending on the type of noise, or if there is a very strong signal close by, the pulse noise may remain and be demodulated. This can result in an unpleasant sound being emitted from the speaker, thus reducing the clarity of your target signal. In such cases, the DNL (digital noise limiter) can reduce pulse noise that has been demodulated at the AF stage, effectively extracting your target audio signal.

Fig.13 is a block diagram illustrating in principle how the DNL operates.

Fig. 13: Principle of DNL operation

BPF	Delay device
	Calculation of	Removal	Derivation of
	amplitude	of DC	attenuation
	variation	component	coefficient
LPF	Delay device

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Contents Page TS-480HX TS-480SAT Determination to create a unique transceiver Design ObjectivesBack to basics The appeal of HF lies in DX’ing Focus on basic performance Standalone control panel200W challenge Adding appeal to fixed station operations Overview of the TS-480 SeriesTS-480 concept began with development of the TS-570? Development Objectives for the TS-480 SeriesAchieving 200W output in a compact transceiver Focusing on HF Circuitry TX circuits 200W final sectionTX IMD output 200W SPS separate power sources TS-480HX only SPS schematic diagram100W final section Failsafe device some TS-480HX versions onlyAntenna tuner TS-480SAT 200W final section FM modulation block diagram FM circuitRX circuitry Front end RX 1st mixerRX dynamic range RX sensitivity Jumpers for joy Circuitry after the roofing filter Comparison of optional CW filters 500HzOption installation unit Features useful for mobile operations Auxiliary FeaturesFeatures useful for 50MHz operations Full compatibility with digital modes data modesNew 5MHz band DSP circuit Features of the Built-in DSPIdeal for mobile operations DNL Noise reduction Demonstrates how ignition noise is reduced by the DNLNR OFF Beat cancel BC OFFRX DSP filters Switching Width During CW operations RX equalizer & TX equalizer CW auto tuneTips TS-480 menusDSP Useful if you want to go on to tune FSK APO Functions that can be assigned to PF keys Assigned Use Split Making menus easier to use Menu switching Quick menuStructural Features Internal structure of the main unitCooling diagram CoolingUpper side Temperature rise around final transistors Page Design concept Constant recording function New Option Voice Guide & Storage Unit VGS-1Message recording/playback function Menu settings Split mode ResetConfiguration mode for TX output, etc Voice GuideMemory channel Other featuresVFO mode, direct frequency entry Variable Voice Guide speedKNS added Main functionsButton layout & basic operation Changing memory and registered details CW keyingCompatibility with KNS Kenwood Network Command System Reading and writing filesSetting up KNS on the Arcp side Accidental continuous TXPage Using a broadband router Checking LAN settings New Option ARHP-10 Amateur Radio Host Program FreewareAdjust PC volume User setupPage Troubleshooting Network & Operations Problem SolutionCannot get KNS to work Sound Problem Solution Connect a microphone to the computer and bring up TS-480 In-Depth Manual