A New Way to Display Your Mode-S Data. See How You Can Get RealTime Alt. Graphs



The MilAirComms.com Listening Post.


2014 Picture's of the MilAir Portion of the Shack
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Just made a few changes to the shack. Removed old out-dated equipment I don't use and just got 2 new BCT-15x's, bring the count up to 3. I soon will be replacing the 8 BC-780XLT's with 8 BCT-15x's and replacing the BC-785D (top row beside the BCT15's) with a BCD996T.

Here is how I scan / search. The group of 8 BC-780's you see pictured are my search scanners. 7 of these each search a 25 MHz chunk of the 225-400 MHz range giving me full coverage of every 25khz frequency every 10 seconds. Any time I get a hit and don't have it previously programmed into 1 of the BCT-15x's that new freq is then programmed into a bank on one of the BCT-15x scanners. The remaining BC-780 is searching 138 - 144 MHz & 148 - 150 MHz AM @ 25khz steps looking for more MilAir air-air freqs.

All three of the BCT-15x's are connected via a USB hub to my main computer. The audio from each BCT-15x goes to a USB soundcard and goes to my main computer. As you can see on the computer screen I'm currently running 3 ProScan packages, each controlling, streaming, logging, and recording all three BCT-15's activity. So far with running Windows 8.1 it appears to have a lot more horsepower to spare. I'm exciting to see just how many BCT-15's & Sound Cards I can get working on this 1 computer.

The monitor you see on the shelf is monitoring two webpages 1) MilAirComms Mode-S page and 2) MilAirComms MilAir Spotters/Loggers Network. With seeing these 2 displays I can see what others are posting to the spotters network and see what military mode-s hits are being seen in my area. This helps to put callsigns and aircraft type to what I'm hearing on the UHF bands.

So in a nutshell that's how I do it....




2012 Picture - Ponce Inlet (Daytona Beach area), FL
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My Shack in Night Operation Mode, I hate bright overhead lights!
This is a 2006 photo but still neat!.



January 2010 Shack Photos
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Over-all view of shack.


Icom IC-910, Icom IC-756 Pro III, ACOM 1000 (1KW) Amp.


Various Scanners for Military Aircraft/NASA monitoring, Davis Vantage PRO2 Weather Station.


Yaesu FT-1000MkV (HF Backup Rig), Acom 1000 Amp (1KW 160mtr - 6 mtr),
Tokyo Hy-Power 2mtr Amp (350 Watts) used for SSB/CW (NO FM!!!), Heath HW-16 it works!


HF Mosley Yagi & 2 Meter Yagi
The antenna on the bottom is the 3 element tri-band Mosley Mini-33A (20, 15, 10 meters). The top antenna is a 6 element Directive Systms 2 meter yagi (an outstanding antenna!) which is use for 2mtr SSB, CW, EME, and Meteor Scatter. I do not do FM!!!!! The rotor is the Yaesu G-450A.




VHF/UHF/1.3GHz Antennas
The lowest antenna is a KU4AB 6 meter Loop being feed with RG-8 Coax. The antenna just above the rotor is the Directive Systems 2 meter, 6 element yagi being feed with LMR-400 coax. The next antenna is a Cushcraft 11 element 432MHz antenna also fead with LMR-400 coax. The top antenna is the Directive Systems 1296 MHz (23 cm) 25 element loop yagi being feed with 1/2" HardLine.




Hustler HF Vertical
This antenna is painted flat black inorder to better blend in with the tree line. This is a 6 band vertical and works excellent 40, 30, 20, 15, and 10 meters. It is advertised to work on 80 meters and it does but just not great. For 160 meters I use a 160 meter Inverted L that shares the same radial system used by the Hustler Vertical. The radial system is about 1000' of radials of various lengths. Being located only 1500 feet from the Atlantic Ocean the ground system works pretty well (only 12' above sea level).



This is a 440 MHz 8 element Log Perodic made by Elk Antenna. I use this for Ham Sats, works great for receiving the FO-29, AO-27, SO-50 and SO-51 Sats. I use a standard 2 meter vertical for the uplink and the Log P. for Downlink. The antenna is fixed at a 45 degree elevation but direction is controled by the Channel Master Rotor. With this setup I can make a Sat Contact nearly anypass which the sat is greater than 15 deg. over the horizon.




Portable Military Satellite Setup
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For portable military satellite monitoring I use an Uniden BC 250D handheld programmed with all the FLEET-SATCOM, LEASAT and UFO Satellite downlink frequencies. Attached to the BC 250D you'll see a 5 element Yagi. This antenna is cut for 263.000 MHz, which is about the center of the MilSat frequencies. The antenna is then fed into a Stridsburg High Pass filter. This filter provides 60dB attenuation to all frequencies below 225 MHz. I used this filter in an attempt to reduce or any out of band interference before it arrives at the GRE wide band preamp. As you can see the filter is directly attached to a GRE wide band preamp which provides about 20 dB gain between 100 - 1000 MHz. The preamp is then directly attached to the BC 250D. This setup will provide nearly full scale signal strengths from digital, encrypted voice, and non-encrypted voice signals coming from several different Military birds which I can receive from my area. Also with thanks to the filter I have yet to receive any out of band intermode or overload type interference.

Equipment List
  • Ham Equipment
  • Icom IC-756 Pro III (HF)
  • Yaesu FT-1000 MP Mark V Field (HF)
  • ACOM 1000 1KW HF/6mtr amp
  • Icom IC-910 w/1296MHz Module (144/432/1296MHz CW/SSB
  • Tokyo Hy-Power HL-350Vdx 2 meter amplifier (350 watts)
  • Kenwood TH-F6A HT (rcvr 100KHz-1300MHz, xmit 144MHz, 220MHz, 440MHz)
  • VHF / UHF Receivers
  • Uniden BC780XLT (7 as these are excellent MilAir scanners!)
  • Uniden BC785D
  • Uniden BC250D
  • Radio Shack PRO-2006
  • Radio Shack PRO-2052 <
  • NewCommunicationSolutions NCS-3230 for AudioControl (2, one for Ham one for Scanners)
  • Antennas
  • Directive Systems 144 MHz 6 Element Yagi (horizontal)
  • Directive Systems 432 MHz 15 Element Yagi (horizontal)
  • Directive Systems 1296 MHz 25 Element Yagi (horizontal)
  • Hustler 6BTV HF Vertical Ground Mounted w/1000' of Radials & Tilt base
  • 160 Meter Invert L (sharing radial system used by the 6BTV)
  • 80 Meter Invert L (sharing radial system used by the 6BTV)
  • Diamond X50 (144/440 MHz) in attic
  • Cushcraft 6 element Yagi (440 MHz) in attic
  • Antenna Warehouse ScanTenna
  • Create Log Periodic (100MHz - 1300MHz used for Military Scanning
  • 5 Element Yagi cut for 263 MHz - Homemade used for Military Satellite receiving.
  • Nil-Jon Super M Mobile used for Mobile listening
  • KU4AB 6 Meter Loop
  • Stridsberg MCA204 (2) 4 Port Active AntennaMulticoupler
  • Stridsberg MCA208 8 Port Active Antenna Multicoupler