GM8RVC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving GM8RVC, decoded by SO8OO in southeastern Poland. 123 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 21 UTC dates in the available aggregate history. Observed between 2026-06-16 and 2026-09-20.
These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.
SO8OO decoded 123 FT8 messages attributed to GM8RVC as the transmitting token by decoded message structure across 21 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (95%), followed by 40 m (5%). Most decodes (67%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (76%); the estimated median was -4 dB.
Overview
Bands
Last attributed message: 2026-09-20 05:42 UTC
Observed FT8 message patterns
- Attributed sample
- 123 messages
- Active dates
- 21 UTC dates
- Estimated median S/N
- -4 dB
- Estimated 10th-90th percentile
- -13 to +4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 93.
WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with GM8RVC in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to GM8RVC
The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.
- Attributed locator
- IO87 · 86 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,821 km (approx.)
- Last such locator decoded
- 2026-09-18 07:07 UTC
A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.
Observed FT8 exchanges
S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.
| Time UTC | Band | GM8RVC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 08:06 | 40m | - / -3 | SH5RJX | -21 / - | 3 | Partial capture |
| 09-18 07:08 | 40m | - / -16 | DJ4WM | +14 / - | 2 | ✓ Closing fragment |
| 09-16 06:32 | 40m | - / 0 | DJ0MAB | 0 / - | 4 | ✓ Closing fragment |
| 09-16 06:28 | 40m | -10 / - | HK3TY | - / -2 | 3 | Partial capture |
| 09-15 07:39 | 40m | - / -18 | E73PJ | +2 / - | 2 | Partial capture |
| 09-15 07:37 | 40m | - / - | DJ0MAB | -2 / - | 2 | Partial capture |
| 09-13 08:30 | 40m | - / -18 | OE5RLP | +11 / - | 4 | ✓ Closing fragment |
| 09-13 08:27 | 40m | - / - | PD1AC | -20 / - | 2 | ✓ Closing fragment |
| 08-23 19:01 | 20m | -24 / - | PA0GSP | +4 / - | 2 | ✓ Closing observed |
| 08-23 08:52 | 20m | -6 / - | <...> | - / -16 | 2 | Partial capture |
| 08-23 08:48 | 20m | -11 / - | OE5WRO | -21 / -4 | 4 | ✓ Closing observed |
| 08-22 12:26 | 20m | - / +1 | PD0PWH | -4 / - | 4 | Partial capture |
| 08-22 12:02 | 10m | - / -8 | DN9OPA | -15 / - | 3 | ✓ Closing fragment |
| 08-21 12:51 | 20m | - / - | IW5ALZ | -6 / - | 2 | Partial capture |
| 08-21 08:50 | 20m | - / -12 | OK2CNI | -12 / - | 4 | ✓ Closing fragment |
| 08-20 18:42 | 20m | - / - | SV8GXC | -4 / - | 6 | Partial capture |
| 08-15 08:51 | 20m | - / 0 | F4AWT | -15 / - | 3 | ✓ Closing fragment |
| 08-13 19:16 | 20m | - / - | DF8DR | -4 / - | 4 | Partial capture |
| 08-13 19:11 | 20m | - / -4 | ON1DGN | -18 / - | 2 | Partial capture |
| 07-18 09:01 | 20m | - / 0 | GJ0KYZ | -12 / - | 2 | ✓ Closing fragment |
| 07-18 08:40 | 20m | - / -2 | G4DBW | -15 / - | 2 | Partial capture |
| 07-18 07:23 | 20m | - / - | DF1KG | +9 / - | 3 | Partial capture |
| 07-16 16:51 | 20m | - / - | EA5IT | -8 / - | 2 | Partial capture |
| 07-14 10:03 | 20m | - / -11 | 9A6NCC | -21 / - | 3 | ✓ Closing fragment |
| 07-13 07:29 | 20m | - / - | DL1R | 0 / - | 8 | Partial capture |
| 07-12 18:47 | 20m | - / - | F4NKF | -4 / - | 2 | Partial capture |
| 06-28 18:44 | 10m | - / -5 | GB1500M | -5 / - | 2 | Partial capture |
| 06-28 17:34 | 20m | - / -4 | M1WLK | -21 / - | 2 | ✓ Closing fragment |
| 06-28 07:34 | 20m | -6 / - | DL7KI | -17 / 0 | 2 | ✓ Closing observed |
| 06-27 20:28 | 20m | - / -16 | UT5MD | -4 / - | 2 | Partial capture |
| 06-27 20:24 | 20m | - / -12 | M0BEW | +16 / - | 4 | ✓ Closing fragment |
| 06-27 15:19 | 20m | - / - | DL1R | -6 / - | 7 | Partial capture |
| 06-27 08:58 | 20m | - / -24 | DB9EE | -1 / - | 3 | ✓ Closing fragment |
| 06-26 17:47 | 20m | -2 / - | KF0YOB | - / - | 2 | Partial capture |
| 06-26 17:17 | 20m | -4 / -10 | UN0GY | -10 / -4 | 3 | ✓ Full exchange observed |
| 06-26 15:39 | 10m | - / -12 | DL8TV | -8 / - | 2 | ✓ Closing fragment |
| 06-26 15:38 | 10m | - / -14 | DG5DR | -14 / - | 4 | Partial capture |
| 06-26 15:05 | 20m | -6 / - | F1PBZ | -6 / -9 | 2 | ✓ Closing observed |
| 06-26 09:33 | 10m | - / -2 | DK7UY | +10 / - | 3 | ✓ Closing fragment |
| 06-25 17:53 | 10m | - / -2 | DL1MKW | +11 / - | 3 | ✓ Closing fragment |
| 06-24 18:05 | 20m | -9 / - | UZ5DM | - / -5 | 2 | Partial capture |
| 06-24 18:02 | 20m | -17 / -2 | CT3MD | -6 / - | 5 | ✓ Closing observed |
| 06-24 07:47 | 20m | - / -5 | F1TXI | -8 / - | 3 | ✓ Closing fragment |
| 06-23 17:59 | 20m | - / - | RL6MT | +6 / - | 10 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 062900 -10 2721 HK3TY GM8RVC R-02 (x2) 063245 +5 2782 GM8RVC YO6LM KN25 063245 -1 2675 GM8RVC DJ0MAB JN49 (x4) 070715 -10 2722 CQ GM8RVC IO87 070830 +13 2722 GM8RVC DJ4WM R-16 (x2) 080330 -8 1055 GM8RVC OK3MB JO70 054215 -14 2786 IZ8DBJ GM8RVC RR73 080600 -21 1679 GM8RVC SH5RJX JO78 (x3)
UTC dB Audio Message 191100 -9 2710 GM8RVC IW4BKX JN54 084630 -15 2443 CQ GM8RVC IO87 (x2) 084830 -12 2444 OE5WRO GM8RVC -04 (x2) 084915 -21 1943 GM8RVC OE5WRO 73 085030 -11 2443 OE5WRO GM8RVC IO87 085215 -9 1870 GM8RVC II7MGMU -23 085230 -8 2443 <...> GM8RVC R-16 (x2) 174600 -16 1305 CQ GM8RVC IO87 a1 (x3) 190130 -24 2767 PA0GSP GM8RVC RR73 190145 +4 2767 GM8RVC PA0GSP 73
UTC dB Audio Message 175445 +9 2834 GM8RVC DL1MKW 73 093345 +10 2890 GM8RVC DK7UY JO44 (x3) 153830 -15 1295 GM8RVC DG5DR JN69 153900 -8 1922 GM8RVC DL8TV R-12 153900 -16 1295 GM8RVC DG5DR JN69 153930 -9 1922 GM8RVC DL8TV 73 153930 -14 1294 GM8RVC DG5DR JN69 (x2) 184430 -3 1879 GM8RVC GB1500M -05 (x2) 120215 -15 1592 GM8RVC DN9OPA JN38 (x3)
Decoder S/N history by band
Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.
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