This section provides information about the device's performance during long-distance WSPR message transmission. Data on transmitted and decoded WSPR messages are taken from the WSPR Rocks!
For each transmission range, a visualized report with a list of all spots is available. To view the visualization, click on the distance in the "Max distance to receiver" column.
Note
During testing of the device, the antenna used was tuned to the resonant frequency using the NanoVNA vector network analyzer.
The efficiency of an antenna's performance largely depends on its installation conditions! In addition to tuning the antenna to achieve the minimum SWR value, the quality of transmission is also influenced by: the height of the antenna installation, the orientation of the antenna in space, the presence of dense urban development with a large amount of electromagnetic interference, and the presence of dense forests absorbing emitted radio waves. Please, when installing the antenna, to achieve maximum performance, consider all possible factors affecting the efficiency of radio transmission!
Power source used: Mi Power Bank Pro PLM07ZM
Coordinates of the antenna installation site: 52.1958, 20.7581
PCB version 1.0 with BS170 field-effect transistor amplifier:
| Firmware version | TX frequency | TX time (CET) | PA bias | Used antenna | SNR | Drift | Max distance to receiver |
|---|---|---|---|---|---|---|---|
| 1.0 | 5.2887 MHz | 21:02 - 21:32 | 2.508V | Windcamp Gipsy | -22 | 0 | 3898 km |
| 1.0 | 7.0401 MHz | 19:04 - 19:34 | 2.508V | Windcamp Gipsy | -16 | 0 | 2849 km |
| 1.0 | 10.1402 MHz | 17:32 - 18:02 | 2.508V | Windcamp Gipsy | -4 | 0 | 2849 km |
| 1.0 | 14.0971 MHz | 15:10 - 15:40 | 2.508V | Windcamp Gipsy | -26 | 0 | 1797 km |
| 1.1 | 5.2887 MHz | 21:36 - 22:06 | 2.508V | Windcamp Gipsy | -23 | 0 | 3898 km |
| 1.1 | 7.0401 MHz | 19:38 - 20:08 | 2.508V | Windcamp Gipsy | -21 | 0 | 2043 km |
| 1.1 | 10.1402 MHz | 16:56 - 17:26 | 2.508V | Windcamp Gipsy | -4 | 0 | 2849 km |
| 1.1 | 14.0971 MHz | 14:34 - 15:02 | 2.508V | Windcamp Gipsy | -6 | 0 | 1721 km |
PCB version 2.0 with SN74ACT244PWR buffer amplifier:
| Firmware version | TX frequency | TX time (CET) | Used antenna | SNR | Drift | Max distance to receiver |
|---|---|---|---|---|---|---|
| 1.1 | 5.2887 MHz | 22:10 - 22:40 | Windcamp Gipsy | -19 | 0 | 3898 km |
| 1.1 | 7.0401 MHz | 20:14 - 20:44 | Windcamp Gipsy | -13 | 0 | 2849 km |
| 1.1 | 10.1402 MHz | 16:16 - 16:46 | Windcamp Gipsy | -6 | 0 | 2849 km |
| 1.1 | 14.0971 MHz | 13:40 - 14:10 | Windcamp Gipsy | -19 | 0 | 3898 km |
This section provides information about the device's performance during long-distance WSPR message transmission based on real user feedback.
PCB version 1.0 with BS170 field-effect transistor amplifier:
| Reporter | Firmware version | TX frequency | PA bias | Used antenna | SNR | Drift | Max distance to receiver |
|---|---|---|---|---|---|---|---|
| KD9MXZ | 1.1 | 14.0971 MHz | 2.610V | PackTenna Mini Random Wire | -28 | 0 | 4618 km |
If you would like to add the results of testing your WSPR beacon to this section, please send the following information to [email protected]:
- Version of the PCB used;
- Bias voltage of the BS170 transistor (only for PCB version 1.0);
- Version of the firmware used;
- Antenna used;
- List of spot information in .csv format;