JH3UHG — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving JH3UHG, decoded by SO8OO in southeastern Poland. 6 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-26.
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 6 FT8 messages attributed to JH3UHG as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 6 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -17 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 2, strong (≥ -8 dB) 0.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with JH3UHG in decoded directed-looking exchanges:
Most frequent locator attributed to JH3UHG
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
- PM74 · 3 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,565 km (approx.)
- Last such locator decoded
- 2026-08-26 18:01 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 | JH3UHG S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-26 18:41 | 40m | - / - | ON5RZ | -9 / - | 3 | Partial capture |
| 08-26 18:21 | 20m | - / - | UA6LIC | +5 / - | 3 | Partial capture |
| 08-26 18:03 | 20m | - / -21 | F6GGA | +1 / - | 5 | ✓ Closing fragment |
| 08-26 17:45 | 20m | -18 / -7 | ON4DS | +10 / -12 | 5 | ✓ Full exchange observed |
| 08-26 15:57 | 20m | - / - | RZ4AZ | -5 / - | 2 | Partial capture |
| 08-26 15:56 | 20m | - / -9 | G3YSX | +16 / - | 2 | ✓ Closing fragment |
| 08-26 14:54 | 20m | - / -18 | 7Z1AL | -19 / - | 2 | Partial capture |
| 08-20 15:47 | 20m | - / - | R6LQU | -6 / - | 2 | Partial capture |
| 08-20 15:29 | 20m | - / -13 | ZA5G | -14 / - | 2 | ✓ Closing fragment |
| 08-07 18:24 | 20m | - / -21 | F4IIX | -5 / - | 3 | ✓ Closing fragment |
| 08-07 18:22 | 20m | - / -12 | F1SZC | -4 / - | 3 | ✓ Closing fragment |
| 08-07 18:01 | 20m | - / -11 | GB8VJ | -21 / - | 2 | Partial capture |
| 08-07 17:50 | 20m | - / -12 | DL4ME | -22 / - | 2 | ✓ Closing fragment |
| 08-07 17:46 | 20m | - / -10 | EA6UE | -10 / - | 3 | ✓ Closing fragment |
| 08-07 16:33 | 20m | - / - | F6KUC | -12 / - | 2 | Partial capture |
| 08-07 16:01 | 20m | - / - | DL1NCH | -7 / - | 3 | Partial capture |
| 08-07 15:16 | 20m | - / -16 | DG9XN | -11 / - | 6 | ✓ Closing fragment |
| 08-06 20:20 | 20m | - / -15 | GM0SDV | -13 / - | 6 | Partial capture |
| 08-06 20:01 | 20m | - / -18 | DG6VC | -7 / - | 3 | ✓ Closing fragment |
| 08-06 19:59 | 20m | - / -14 | HB9TVS | -12 / - | 2 | ✓ Closing fragment |
| 08-06 19:48 | 20m | - / -14 | F4MUD | -8 / - | 7 | Partial capture |
| 08-06 19:48 | 20m | - / - | ON4AZR | -10 / - | 2 | Partial capture |
| 08-06 19:46 | 20m | - / -13 | F4LZZ | -13 / - | 3 | Partial capture |
| 08-06 19:38 | 20m | - / -3 | PD5DJ | -5 / - | 4 | ✓ Closing fragment |
| 08-06 19:37 | 20m | - / -15 | EA8AT | -4 / - | 2 | ✓ Closing fragment |
| 08-06 19:37 | 20m | - / - | F4LZZ | -12 / - | 2 | Partial capture |
| 08-06 19:25 | 20m | - / -15 | MI0JZZ | -13 / - | 2 | ✓ Closing fragment |
| 08-06 19:16 | 20m | - / -17 | EA8AT | -8 / - | 3 | Partial capture |
| 08-06 19:15 | 20m | - / - | F4LZZ | -7 / - | 2 | Partial capture |
| 08-05 18:29 | 20m | - / - | EA3HMM | +2 / - | 4 | Partial capture |
| 08-05 18:21 | 20m | - / -11 | CS8ABF | -10 / - | 2 | ✓ Closing fragment |
| 08-05 18:17 | 20m | - / - | PD1ADA | -16 / - | 4 | Partial capture |
| 08-05 18:15 | 20m | - / -17 | EA3HRE | -11 / - | 4 | ✓ Closing fragment |
| 08-04 16:00 | 20m | - / -24 | PC2J | -15 / - | 3 | Partial capture |
| 08-04 15:58 | 20m | - / -17 | DL1NCH | 0 / - | 2 | Partial capture |
| 08-04 15:11 | 20m | - / - | EA5D | -11 / - | 3 | Partial capture |
| 08-04 14:57 | 20m | - / - | G0RVY | -8 / - | 3 | Partial capture |
| 08-04 14:27 | 20m | - / - | LZ4VR | -19 / - | 2 | Partial capture |
| 08-04 11:52 | 20m | - / -15 | GM0SDV | -24 / - | 2 | Partial capture |
| 08-04 11:51 | 20m | - / -13 | ON7COB | -16 / - | 2 | Partial capture |
| 08-03 22:44 | 20m | - / -12 | EC5K | -18 / - | 2 | ✓ Closing fragment |
| 07-21 16:57 | 20m | - / -14 | DF1KW | +17 / - | 2 | ✓ Closing fragment |
| 07-21 16:40 | 20m | - / -14 | DK5UP | +2 / - | 3 | ✓ Closing fragment |
| 07-21 16:31 | 20m | - / -10 | EA5PC | -8 / - | 2 | ✓ Closing fragment |
| 07-15 18:07 | 20m | - / -13 | JY5CG | -10 / - | 4 | ✓ Closing fragment |
| 07-15 17:16 | 20m | - / -5 | EA7ALL | -12 / - | 4 | ✓ Closing fragment |
| 07-15 17:06 | 20m | - / - | EA7ALL | -1 / - | 3 | Partial capture |
| 07-15 16:22 | 20m | - / -14 | MD0CCE | -8 / - | 3 | ✓ Closing fragment |
| 07-15 16:19 | 20m | - / -14 | DK0ND | +2 / - | 2 | Partial capture |
| 07-15 16:19 | 20m | - / - | IV3KZF | -1 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 184115 -9 2145 JH3UHG ON5RZ JO21 (x3)
UTC dB Audio Message 174615 -17 844 ON4DS JH3UHG R-12 174630 +10 899 JH3UHG ON4DS RR73 174645 -20 844 ON4DS JH3UHG 73 174715 -14 844 GW4RDW JH3UHG PM74 180100 -24 1428 PD2WL JH3UHG PM74 180315 +3 725 JH3UHG F6GGA JN37 (x5) 181645 -1 1801 JH3UHG OZ9GA -10 182145 +7 1361 JH3UHG UA6LIC KN97 (x3) 183430 -14 844 E77FN JH3UHG -09
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee