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Inventory
Currently, ACTS owns the following equipment:
| Item | Description | Accessories | Obtained | Current Location |
| HTX-202 | Radio Shack 2m handheld | charger, MFJ antenna, dry cell battery pack | donated by Pete DiVolpi, K3PD | with Marten for the summer |
| C3i C5-50 | 12 foot long 6m beam antenna | none | donated by Pete DiVolpi, K3PD | Frey Academic Building |
| ARRL APRS book | A Guide to the Automatic Position Reporting System | none | purchased with club funds | with Marten for the summer |
| Kenwood TH-D7A(G) | 144/440 MHz dual band full duplex radio with built in TNC | charger, antenna, manuals, battery pack, wrist strap, belt clip | purchased with club funds | with Marten for the summer |
| Garmin eTrex Legend | GPS with WAAS and 8MB memory | wrist strap, manuals, computer serial interface cable | purchased with club funds | with Marten for the summer |
| Blue Hills Innovations BH210203 | Provides power to GPS and data interface with the Kenwood TH-D7A(G) | none | Marten Beels | with Marten for the summer |
| Blue Hills Innovations BH020000 | Garmin eType Connector, connects GPS to the Kenwood | none | Marten Beels | with Marten for the summer |
What are we doing?
Currently, we're working on setting up an APRS system. I'm setting up UI-View32 in windows XP and using the AGWPE soundcard modem to receive packets with the HTX-202. The Kenwood and GPS communicate nicely, I can successfully send the GPS coordinate and call sign from the Kenwood to the HTX-202, and place my current position on a map in UI-view32.
(Click on the picture for a larger file)
I'm also working on getting Xastir configured with soundmodem under linux. Xastir has the advantage of supporting many map file formats for free, including live weather radar via the web as well as a topographic maps, satellite imagery, street maps, etc. The following screen shot shows one example. The street names were working before, I have to figure out why they aren't displayed.
(Click on the picture for a larger file)
Besides APRS, the Kenwood is a good satellite radio because it supports full duplex operation. Currently, I'm running PREDICT in linux to track the satellites. In the screen shot below, PREDICT is running in the background in server mode. Once it is going, I start GSAT which is a graphical client interface, it connects to port 1210 where the PREDICT software feeds it the current satellite information. I'm not in a very good location for listening for satellites, there is a lot of dense tree cover around me. However, when AO-51 made a pass nearly directly overhead (70 degrees maximum elevation, click here for track) I stepped outside with a 2m 5/8 wave telescopic whip and heard the downlink on 435.300. It was a real thrill to suddenly be listening to people all over the east coast exchanging call signs, grid squares, and states on a little HT! Here is a screen shot just before AO-51 makes another pass. Note the up and downlink frequencies corrected for doppler shift.
(Click on the picture for a larger file)
