The Current Stats!

The Current hardware configuration at the K8SN Repeater is as follows:

  • LOCATION: I am Housed on a 13th Floor Building on the Hill overlooking the Grand Rapids Area River Valley.
  • EXCITER/AMPLIFIER: Motorola Mitrek  running 125W on 442.175 Mhz. (103.5Hz PL)
  • RECEIVERS: Tactel TAC310SX on 447.175 Mhz (103.5Hz CTCSS).  Also on each Link channel from the remotes
  • POWER SUPPLY: Newmar 70A Steady Duty, 100A Intermittent.
  • CONTROLLER: FF-Systems Inc. FF-800 with FF-CAD 500ms Audio Delay Board and companion FF-8070 Digital Voice Recorder System.
  • DUPLEXER SYSTEM: Cellwave 6 Cavity Hi-Q BPBR Circuits. Also included is a set of DB Products 6 Cavity Reject Filters tuned to reject the area Paging Services Transmitters.
  • ANTENNA SYSTEM: Hustler G6-440 6db Fiberglass fed with 35FT of 1/2 Andrews Heliax.
  • REMOTE BASE: Doug Hall Electronics RB-1, Kenwood TM-241A, Hustler G-7 Antenna up 13 Storys, DCI and PAR Electronics Filters to eliminate Downtown Intermod.
  • OTHER OPTIONS: Doug Hall Electronics 4RV System 8 Channels, Hayes 14.4 Modem for remote control.
  • REMOTE RECIEVER ELECTRONICS AND OTHER MISC. FACTS: Remote sites are Motorola Mitreks Listening on 447.175Mhz and retranmitting on one of the link channels back to the Spectrum Site. These site average about 1 to 5 W output into either a 6 or 11elment Beams. Also, DB Products 4Bay UHF fed into a single BPBR Cavity - Passing a "band" of channels and rejecting the Transmitter.  Allows for lower power link-back tranmitters at the remote sites. The above are fed into a hi quality TV type splitter with tuned lengths of feedline. ( Aprox. 1db of loss per port for four ports.) Allows for 1 antenna for all the remote recievers.
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