The Campus Amateur Radio Club at Iowa State University will be launching a high altitude balloon carrying a FM cross-band repeater in coordination with M:2:I’s High Altitude Experiments in Technology team (HABET). The repeater will consist of two HTs and a repeater box, combined with a dual-band whip and duplexer. The whip antenna will be positioned for vertical polarization. More details, updates, and pictures will be posted here as the launch date approaches.
Note: when trying to make it into the repeater, use the maximum amount of power available to you (especially when the balloon is near the horizon) to ensure that dropouts do not occur in transmissions. We had this problem on previous balloon flights. *If you have 50 watts, PLEASE feel free to use the full 50 watts!*
Time of launch: Saturday, April 5th OR Sunday, April 6th @ 1300z (weather permitting)
| Uplink: | 446.375 MHz (no tone) |
| Downlink: | 146.480 MHz |
An image of our previous balloon payload, flown December 7th, 2024:
