the Station

My station is designed primarily for SO2R .  Feeding each band separately on the Force 12 multi-monobanders gives me some added flexibility over the standard ‘tri-band’ single feed technique.  And certainly the band pass filters and the coax stub filters installed on each band’s feed line have been a benefit in allowing simultaneous multi-band operation.

Main Station

Main operating position - SO2R with 2 x FT-1000MP

  • Dell Optiplex PC, Windows 7 using dual 23″ widescreen monitors
  • N1MM+ logger
  • SO2R with microHAM MK2R+
  • LP-100A Digital Vector RF Wattmeter with dual coupler option
  • A pair of FT-1000MP, both fully loaded with filters and Inrad mods, included roofing filter.
  • Both rigs use ICE 419B band pass filters
  • Left rig has Top Ten Band Decoder to automate band pass filter and antenna selection
  • Antenna switching & stack selection via ArraySolutions SixPack and StackMatches x 4
  • Receive antenna switching via Ameritron RCS-8V

Transmitting Antenna available at both rigs:

  • 160 meter dipole at 105 ft
  • 160 meter Inverted-L 75′ high 100′ wide, 40 buried radials 125′ long
  • 80 meter dipole at 75 ft
  • 80 meter shunt fed tower (120 ft tower with stacked Yagis, 40 buried radials 125 feet long)
  • 40 meters 2/2 at 116/52 ft
  • 20 meters 3/3/3 at 116/85/52 ft
  • 15 meters 4/4/4 at 116/85/52 ft
  • 10 meters 7/7/7 at 116/85/52 ft

Receiving Antenna available at both rigs via home-brew Magic-T splitter. Transformers home-brewed based on W8JI design. Wire is 17ga electric fence wire. Height ranges from 9 to 11 ft.  Switching via Ameritron RCS-8V:

  • 580 ft beverage at 45 degrees (Europe)
  • 480 ft beverage at 90 degrees (Africa)
  • 800 ft beverage at 270 degrees (VK/ZL)
  • 480 ft beverage at 315 degrees (Japan)

Coax stub filters at antenna switch point

Coax Stub Filters installed at SixPack on antenna ports. Coax is mix of RG-213 & JefaTech LL400. Measured with AIM 4170:

  • 10 meters – CS-6 (1/2 WL-open 10m) & CS-4 (1/2 WL-open 20m)
  • 15 meters – CS-3 (1/4 WL-shorted 40m)
  • 20 meters – CS-4 (1/2 WL-open 20m) & CS-5 (1/4 WL-shorted 20m)
  • 40 meters – CS-3 (1/4 WL-shorted 40m) & CS-7 (1/2 WL-shorted 15m)
  • 80 meters – CS-1 (1/4 WL-shorted 80m)
  • 160 meters – CS-9 (1/4 VL-shorted 160m)

Amplifiers  

  • Left rig => AL-1500
  • Right rig => AL-1200
  • Multiplier rig => AL-811

Multiplier station

Multiplier / Spotter position with IC-756 Pro2

  • IC-756Pro2
  • Lightning Bolt quad for 10/12/15/17/20 meters at 45 ft on Tower #3
  • IC-2100 with 5/8 wave J-pole at 45 ft for 2 meter FM use
  • Home-brew Icom ProData sound card interface (From QST March 2003)
  • Manually moving coax jumpers allows use of antenna not in current use at main station.

UPDATE! Jan 14 2011

K3 #0251 now in the shack.  I don’t know where it will wind up in the mix – I’ll have to use it and evaluate my preference between the K3, 756Pro2, and 1000MPs.  Only then will I know how I’ll integrate it into the station.

It has 2.8, 2.1, 1.8, 400 & 250 filters in it.

 Etc …

Like most hams, I’m always gathering pieces and parts. Here’s the list of what is gathered that is not yet in service.

  • (1) Tic Ring Rotor model 1022D
  • An additional 200 feet of Rohn 55G for future Tower #2 and #3 with associated EHS and guy hardware
  • (1) KLM KT36XA (as of 05/02/09, on tower at K5ER as a loaner)
  • (1) M2 KT34XA
  • (1) KLM ‘Big Stick’ 6-element for 15 meters (acquired 11/13/10)
  • 2nd & 3rd SixPack
  • 5th & 6th StackMatch
  • Over 1,000 feet of 1/2″ Andrews hardline
  • Over 2,000 feet of 1/2″ Commscope hardline
  • 20 ground rods, 10 feet by 5/8″
  • 2 large NEMA electrical/grounding boxes for weatherproof enclosures