Monthly Archives: October 2012

October 14, 2012
19:48
by: trango

Dragon Telemetry Active on UHF

The Dragon capsule has been relatively quiet on S-Band after docking. Last mission, S-Band remained active while docked, this has not been the case this mission. However, Dragon has been transmitting on UHF (400.5 MHz) sending telemetry using it’s COTS … Continue reading →

Posted in Spacecraft Tagged

October 13, 2012
23:59
by: trango

Operation Deep Freeze Activity Ramps Up

Operation Deep Freeze became really active as of today (10.13.12). In the recording below you can hear ICE 10, ICE 11, Deep Freeze Ops, Mac Center and Charleston Roth. Discussion of various weather situations, Iridium texts, Microwave Landing System (MLS) … Continue reading →

Posted in SATCOM Tagged

October 11, 2012
15:04
by: trango

TerreStar-1 on S-Band

While doing some calibration on the smaller dish I ran across a really nice collection of voice/data signals from the TerreStar-1 satellite. TerreStar-1 is in geosynchronous orbit in the 111W slot. It has an 18-meter antenna and so has some … Continue reading →

Posted in SATCOM Tagged

October 11, 2012
14:46
by: trango

Space-X Dragon Telemetry Reception

Here are a couple of recent signals from Space-X Dragon while on it’s way to dock with the ISS. First is a nice strong narrow band signal from Dragon capsule just before tethering with ISS. You can see the impact … Continue reading →

Posted in Spacecraft Tagged

October 11, 2012
14:31
by: trango

Landsat-5 S-Band Reception

Just killing time waiting for ISS / Dragon to come into view. Decided to take a listen to Landsat-5 and was surprised with a really nice wide signal on 2287.5 MHz. Was able to see it lock up with the … Continue reading →

Posted in SATCOM Tagged

October 7, 2012
19:46
by: trango

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 →

Posted in Projects Tagged , ,

October 7, 2012
19:19
by: trango

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 →

Posted in Projects Tagged , ,