1151 - Dru VFH
Timeframes are in UTC
| Owner | Andrew Ackerman |
| QTH Locator | DM79mm |
| Coordinates(lat, lon) | 39.542°, -104.985° |
| Altitude | 1767 m |
| Min Horizon | 14° |
| Target Utilization | 100 % |
| Antennas | Quadrafilar (VHF) |
| Success Rate |
|
| Observations | 1940 |
| Creation Date | 6 years ago |
| Client version | 1.0 |
| Offline | Last seen 5 years, 7 months ago |
| Uptime | 5 years, 10 months |
3 Dec 19 changed from HF Dipole to homemade quadrifilar helix antenna. Wood, 12 gauge copper wire with insulation on and hot glue. Many tries, even having a NanoVNA; tuned for 146 Mhz; symmetrical lengths; 0.41 w/h ratio; quarter wave RHCP insert. Antenna, RTL-SDR, Pi4. Improved with obs 1315448 after adding 3 loops in ferrite core choke and turning left 90 deg; slightly lowered freq. Now better at times than my other ground plane. On table next to house under large cottonwood (no leaves).
| Status | Datetime | Time since Change |
|---|---|---|
| Online | 2020-04-23 07:07:07 | 5 years, 7 months ago |
| Online | 2020-04-11 18:08:07 | 5 years, 7 months ago |
| Online | 2020-04-11 04:23:59 | 5 years, 7 months ago |
| Online | 2020-04-06 12:24:43 | 5 years, 8 months ago |
| Online | 2020-04-04 02:04:06 | 5 years, 8 months ago |
| Online | 2020-03-23 19:49:37 | 5 years, 8 months ago |
| Online | 2020-03-10 16:16:37 | 5 years, 8 months ago |
| Online | 2020-02-04 01:46:37 | 5 years, 10 months ago |
| Offline | 2020-02-04 01:46:11 | 5 years, 10 months ago |
| Online | 2020-01-13 03:40:37 | 5 years, 10 months ago |
| Online | 2019-12-19 09:52:23 | 5 years, 11 months ago |
| Online | 2019-12-05 02:25:37 | 6 years ago |
| Offline | 2019-12-05 02:20:03 | 6 years ago |
| Online | 2019-12-04 04:00:00 | 6 years ago |
| Online | 2019-12-03 10:20:12 | 6 years ago |
| Online | 2019-12-03 07:03:04 | 6 years ago |
| Testing | 2019-12-03 06:20:56 | 6 years ago |
| Testing | 2019-11-29 03:43:52 | 6 years ago |
| Online | 2019-11-25 18:53:32 | 6 years ago |
| Testing | 2019-11-25 16:35:08 | 6 years ago |
| Testing | 2019-11-25 04:26:13 | 6 years ago |
| Online | 2019-11-25 01:10:37 | 6 years ago |
| Testing | 2019-11-25 00:20:12 | 6 years ago |
| Testing | 2019-11-24 23:18:43 | 6 years ago |
| Online | 2019-11-24 17:07:04 | 6 years ago |
| Testing | 2019-11-24 16:31:46 | 6 years ago |
| Online | 2019-11-16 19:20:55 | 6 years ago |
| Testing | 2019-11-16 17:28:55 | 6 years ago |
| Testing | 2019-11-15 18:59:05 | 6 years ago |
| Offline | 2019-11-15 18:46:20 | 6 years ago |