Kenwood TS-480 manual RX equalizer & TX equalizer, CW auto tune

Page 28

●RX equalizer & TX equalizer

If you use the RX equalizer it is easy to adjust RX audio quality. Take your pick from flat (default), high boost, Formant pass, bass boost, and conventional settings. As a new feature, the TS-480 actually offers two types of high boost and two types of bass boost.

TX audio quality can similarly be adjusted with the TX equalizer. It is easy to make any changes to suit your taste: for example, mic characteristics can be corrected, and you can apply compensation to match the characteristics of your own voice. For TX there are now two types of high boost and two types of bass boost, so why not give them a try?

The graph in Fig. 22 plots overall frequency characteristics from mic input to antenna output, illustrating the effect of some of these equalizer settings.

Fig. 22: TX equalizer characteristics (example)

If you use the Audio Editor function (ARCP-480), available free for downloading, the options for equalizing expand even more. In addition to a total of 35 types of equalizing samples, it offers tools for freely adjusting such parameters as filter type, cutoff frequency and amount of attenuation. The settings made with the ARCP-480 software can be applied by selecting U (user) from any of the TS-480’s equalizer menus.

While it is true that neither the built-in equalizers nor the audio editor software provide the same degree of freedom as the graphic equalizers found in audio entertainment equipment, they are useful as a means for tailoring audio quality to suit.

●CW auto tune

A useful feature for tuning in to another station is CW auto tune. There is more than one method for zeroing in on a target frequency – such as matching RX beat with sidetone pitch, or getting the pitch frequencies that can be heard when CW reverse is ON and OFF to be the same – but it is very easy if you engage CW auto tune when you can hear the other station. It just takes the press of a button to make the VFO automatically zero in on the target. Note, however, that there are various limitations associated with this feature – for example, the tuning range is 300Hz on either side of the pitch frequency, and it can be confused by interference – so you should learn how to make good use of it.

28

Page 27 Page 29
Image 28
Page 27 Page 29
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 Auxiliary Features Features useful for 50MHz operationsFeatures useful for mobile 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 Reset Configuration mode for TX output, etcMenu settings Split mode Voice GuideOther features VFO mode, direct frequency entryMemory channel 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
Top Page Image Contents