Tag Archives: Equipment

Rack Mount SSB Preamp Controllers

Well, it’s wintertime and indoor projects are plentiful. This little project takes some rather small SSB Preamp Controllers and mounts them in a standard 19″ rack panel using a CNC. Click on the image below for more details. Tweet

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C-Band Downconverter Project

A new C-Band downconverter has been designed and constructed to receive interesting signals of terrestrial nature. Click the image below for more details. Tweet

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Ruggedized Mobile EMCOM System

This is a mobile emergency communications setup, it is primarily used to support the Western States 100 Mile Endurance Run at one of the remote locations. I have ruggedized everything as a result of some bad weather last year. Lots … Continue reading

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L-Band Downconverter for Inmarsat Operation

USA-Satcom has a shortage of communication receivers due to all the interesting things to monitor. In an effort to free up one of the communication receivers used for Inmarsat monitoring, a new L-Band downconverter has been designed and installed. Click … Continue reading

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L-Band Feed Optimization and Weatherproofing

The ground mounted 1.2m dish is currently dedicated to Inmarsat 3F3 POR at 178E. Winter is coming and so it was time to weatherproof and paint the 5-turn helical feed. The feed was also phase center optimized during dish calibration. … Continue reading

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X-Band System is Operational

After a few months of pulling together some key surplus X-Band equipment, USA-Satcom is happy to report successful first signals from both WGS-1 and DSCS-3 satellites. Here are a couple of screenshots of X-Band waveforms from WGS-1 and DSCS-3. Additional … Continue reading

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AT-197A/GR Military Air Discone

Installed this nice RAMI AT-197A/GR Military Discone today. It’s a great broad band omni-directional antenna optimized for 225-400 MHz. Along with the antenna I am using a custom Angle Linear LNA with a NF of 0.7 and a gain of … Continue reading

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Rack-mount IC-9100

I picked up an ICOM IC-9100 a couple years ago at Dayton. I am now finally able to install it into the new station console using one of Novexcomm’s rack mount kits. The rack mount kit comes from Novexcomm as … Continue reading

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Improved LNA for Sonde Tracking

I have been using a non-optimal high noise figure wide band LNA for last few months for sonde tracking. I have now replaced it with a more optimal DEMI LNA with a noise figure < 0.7 dB, 25 dB gain … Continue reading

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WX Sonde Chasing

I happen to be in the bay area and so decided to take advantage of a sonde launch from the Oakland airport. The goal was to track and retrieve the sonde. I regularly receive and track these sondes from home, … Continue reading

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