Kenwood TS-2000 Instruction Manual

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Kenwood TS-2000 Instruction Manual Manual pdf 63 page image

554 To return the display to the current operatingmode, press [DISP/ SEL].Note:uThe cut-off frequencies can be adjusted independently foreach operating mode. When you change the operatingmode, the previous setting is recalled for each operatingmode.uWhen the Packet filter (Menu No. 50A) is ON, you cannotchange the DSP filter bandwidth. Switch the Packet filterOFF to adjust the DSP filter bandwidth.n CW/ FSK Modes1 Press [CW/ FSK/ REV] to select CW or FSKmode.2 Press [DISP/ SEL].• The current filter selection appears.3 Turn the LO/ WIDTH control clockwise toincrease (wide) the bandwidth, orcounterclockwise to decrease (narrow) thebandwidth.4 As for CW, you can further adjust the shiftfrequency for passband. Turn the HI/ SHIFTcontrol to adjust the shift frequency from 400 to1000 Hz in steps of 50 Hz. The default shiftfrequency is 800 Hz.5 To return the display to the current operatingmode, press [DISP/ SEL].REJECTING INTERFERENCEDSP FILTERSKENWOOD digital signal processing (DSP)technology is used for the functions described in thissection. Using DSP filtering, the TS-2000 frees youfrom installing many analog filters for each operatingmode. Additionally, you can control the bandwidth,cancel the multiple jamming beat, and reduce thenoise level using DSP filtering technology.CHANGING THE RECEIVE BANDWIDTHFor improving interference reduction capability, thistransceiver also provides IF filters designed usingDSP technology. When in SSB, FM, or AM mode,you can change the filter bandwidth by altering its lowand/or high cut-off frequency. For CW and FSKmodes, you can change the filter bandwidth bydirectly specifying a bandwidth. Changing the filterbandwidth does not affect the current receivefrequency.Note:uThe receive filter bandwidth can be changed only on the maintransceiver.uAF DSP filter is used for FM mode.n SSB/ FM/ AM Modes1 Select SSB, FM, or AM mode.2 Press [DISP/ SEL].• The current filter selection appears.3 Turn the LO/ WIDTH control clockwise to raisethe low cut-off frequency, or counterclockwiseto lower the low cut-off frequency.Turn the HI/ SHIFT control clockwise to raisethe high cut-off frequency, or counterclockwiseto lower the high cut-off frequency.Interferingsignal Desiredsignal InterferingsignaltsujdA )zH(snoitceleSycneuqerFHTDIW/OL,004,003,002,001,05,0,009,008,007,006,0050001TFIHS/IH,0002,0081,0061,0041,0082,0062,0042,00220005,0004,0043,0003edoM )zH(snoitceleShtdiwdnaB tluafeD)zH(WC ,004,003,002,051,001,08,050002,0001,006,005 006KSF 0051,0001,005,052 0051edoM tuc-woltluafeD)zH(yceuqerftuc-hgihtluafeD)zH(ycneuqerfMF/BSS 003 0062MA 001 0005LO/WIDTHffHI/SHIFTff