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Station Design for High Performance:

Station Design for High Performance:. Switching, Filters, Triplexers , and Stubs. High Performance (The Competitive Edge). Innovations to: Allow Automatic Bandswitching Protect Receiver Front Ends Reduce Interference Reduce Operator Errors. Switching. Band Coding (K3).

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Station Design for High Performance:

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  1. Station Design for High Performance: Switching, Filters, Triplexers, and Stubs K7WA - February 11, 2014

  2. High Performance(The Competitive Edge) Innovations to: • Allow Automatic Bandswitching • Protect Receiver Front Ends • Reduce Interference • Reduce Operator Errors K7WA - February 11, 2014

  3. K7WA - February 11, 2014

  4. Switching K7WA - February 11, 2014

  5. Band Coding (K3) Band Outputs (BAND0-BAND3): BAND0-3 provide band selection signals. With CONFIG:KIO3 set to NOR, the BAND0-3 outputs are mapped based on the selected HF-6 m band as shown below. Band BAND3 BAND2 BAND1 BAND0 160 m 0 0 0 1 80 m 0 0 1 0 60 m 0 0 0 0 40 m 0 0 1 1 30 m 0 1 0 0 20 m 0 1 0 1 17 m 0 1 1 0 15 m 0 1 1 1 12 m 1 0 0 0 10 m 1 0 0 1 6 m 1 0 1 0 K7WA - February 11, 2014

  6. K7WA Antenna Switching Radio(Elecraft K3) Decoder(W9XT BCD 10) 80 M Vertical(Hustler 5BTV) Relays(Top Ten) Antenna Tuner(Viking Matchbox) 40 M Inverted Vee Triband Yagi(Mosley Mini) K7WA - February 11, 2014

  7. Filter Types “A filter is a common linear stage in radio equipment. Filters arecharacterized by their ability to selectively attenuate certainfrequencies in the filter’s stop band, while passing or amplifyingother frequencies in the passband.” Roofing Filter DSP FilterHigh Pass FilterLow Pass FilterBand-stop Filter Band Pass Filter Notch Filter K7WA - February 11, 2014

  8. Bandpass Filter Plots K7WA - February 11, 2014

  9. HamationSwitched BPF K7WA - February 11, 2014

  10. VP6DX Notch Filter K7WA - February 11, 2014

  11. Triplexer K7WA - February 11, 2014

  12. K7WA - February 11, 2014

  13. N7PP Field Day (CW) Station 120 M BPF Triplexer Tri BandYagi BPF Station 215 – 80 M 80 MDipole BPF Station 310 – 40 M BPF 40 MYagi BPF K7WA - February 11, 2014

  14. KØAD Switching(RF Path) Radio 1 Radio 2 SwitchableBandpass Filter SwitchableBandpass Filter SixPak1015204080160 TriPlexer 6 Meter ManualCoax Switch 10-15-20 Yagi 15-20 Dipole 40 M Yagi 10-15-20 Vert 80 M InvVee 160 Inv L K7WA - February 11, 2014

  15. KØAD Switching Radio 1 Radio 2 Auto/ManualSwitch SixPakSwitch To PC To PC Band Decoder 1 Band Decoder 2 InterfaceBox SwitchableBandpass Filter SwitchableBandpass Filter SixPak1015204080160 TriPlexer 6 Meter ManualCoax Switch 10-15-20 Yagi 15-20 Dipole 40 M Yagi 10-15-20 Vert 80 M InvVee 160 Inv L K7WA - February 11, 2014

  16. Stubs K7WA - February 11, 2014

  17. High Power Example with Stubs Radio 1 Radio 2 Auto/ManualSwitch SixPakSwitch To PC To PC Band Decoder 1 Band Decoder 2 InterfaceBox SwitchableBandpass Filter SwitchableBandpass Filter Amplifier 2 Amplifier 1 SixPak1015204080160 10 M Ant Stub 15 M Ant Stub 20 M Ant 40 M Ant Stub Stub 80 M Ant 160 M Ant Stub Stub K7WA - February 11, 2014

  18. Station Design for High PerformanceReferences: International Radio: www.inrad.netTop Ten Devices: www.qth.com/toptenHamation (K7MI): www.hamation.comArray Solutions (WX0B): www.arraysolutions.comDunestar: www.dunestar.comUnified Microsystems (W9XT): www.unifiedmicro.commicroHAM: www.microham-usa.com4O3A: www.4o3a.comVP6DX Receive Antennas:www.ncjweb.com/200807NCJVP6DXreceiveantenna1.pdfNCCC: (Band-Pass Filters: JUG March 2013) www.nccc.ccTCDXA: www.tcdxa.orgYCCC: www.yccc.orgPVRC: www.pvrc.orgQST: Stubs (Nov. 2004, p. 61), Triplexer (June 2010, p. 37, June 2012, p. 54) K7WA - February 11, 2014

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