W4JHV — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving W4JHV, decoded by SO8OO in southeastern Poland. 177 FT8 messages attributed to this token as transmitter, on 20m, across 12 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-28.
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 177 FT8 messages attributed to W4JHV as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 177 messages
- Active dates
- 12 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -19 to -8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 49, moderate (-15 to -9 dB) 105, strong (≥ -8 dB) 23.
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 W4JHV in decoded directed-looking exchanges:
Most frequent locator attributed to W4JHV
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
- EM74 · 96 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,198 km (approx.)
- Last such locator decoded
- 2026-08-28 02:10 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 | W4JHV S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-02 03:06 | 40m | - / - | 4X5CG | -20 / - | 2 | Partial capture |
| 10-27 15:33 | 10m | - / -21 | CR7CAU | -5 / - | 3 | ✓ Closing fragment |
| 10-27 14:57 | 10m | - / -20 | CT2ECS | +1 / - | 3 | ✓ Closing fragment |
| 10-17 18:17 | 40m | - / - | F4MTS | +4 / - | 3 | Partial capture |
| 10-13 14:52 | 10m | - / - | EA4D | -6 / - | 11 | Partial capture |
| 10-13 14:34 | 10m | - / -19 | EA5GY | +7 / - | 3 | Partial capture |
| 10-13 02:23 | 40m | - / -13 | KP4SMC | -8 / - | 2 | ✓ Closing fragment |
| 10-13 02:16 | 40m | - / -12 | F5UOU | +7 / - | 2 | ✓ Closing fragment |
| 10-08 02:16 | 40m | - / -13 | EA3HMM | +4 / - | 7 | ✓ Closing fragment |
| 10-03 02:10 | 40m | - / -17 | F1PBZ | -2 / - | 3 | Partial capture |
| 09-29 02:07 | 40m | - / -10 | F1PBZ | +2 / - | 3 | Partial capture |
| 09-23 02:56 | 80m | - / - | 9A5E | +7 / - | 2 | Partial capture |
| 09-23 02:43 | 80m | - / +2 | KD2YQS | -19 / - | 2 | ✓ Closing fragment |
| 09-23 02:28 | 80m | - / -18 | F1PBZ | +7 / - | 2 | Partial capture |
| 09-20 18:47 | 10m | - / -5 | CE2SV | -10 / - | 4 | ✓ Closing fragment |
| 09-15 01:54 | 40m | - / -15 | F4CQS | -10 / - | 3 | Partial capture |
| 09-15 01:37 | 40m | - / -18 | F4CQS | -7 / - | 3 | Partial capture |
| 09-15 00:57 | 40m | - / -2 | F4CQS | -6 / - | 3 | Partial capture |
| 09-12 01:09 | 40m | - / -7 | K1DG | -7 / - | 2 | ✓ Closing fragment |
| 09-08 02:27 | 40m | - / -11 | YO9HP | +8 / - | 2 | ✓ Closing fragment |
| 08-28 19:09 | 20m | - / -5 | DA1EA | -16 / - | 2 | ✓ Closing fragment |
| 08-28 02:44 | 20m | - / - | WV2B | -6 / - | 4 | Partial capture |
| 08-28 02:29 | 20m | - / -7 | 9K2MP | -10 / - | 3 | ✓ Closing fragment |
| 08-28 01:19 | 20m | - / -7 | WP4JKT | -8 / - | 2 | Partial capture |
| 08-25 03:37 | 40m | - / -11 | UW5ZM | +12 / - | 2 | Partial capture |
| 08-25 03:31 | 40m | - / -18 | PC2J | +2 / - | 11 | ✓ Closing fragment |
| 08-25 03:23 | 40m | - / -19 | UT5ECZ | +8 / - | 2 | Partial capture |
| 08-25 03:22 | 40m | - / - | UW5ZM | +12 / - | 2 | Partial capture |
| 08-25 03:10 | 40m | - / - | UW5ZM | +14 / - | 2 | Partial capture |
| 08-24 03:04 | 20m | - / -14 | F1PBZ | +2 / - | 2 | Partial capture |
| 08-23 03:21 | 40m | - / -17 | PA4PA | +2 / - | 2 | ✓ Closing fragment |
| 08-23 02:43 | 40m | - / -22 | N2SU | -8 / - | 3 | ✓ Closing fragment |
| 08-23 02:36 | 40m | - / -10 | DL3PWR | +5 / - | 3 | Partial capture |
| 08-21 03:43 | 40m | - / -18 | CT2GQA | -8 / - | 4 | ✓ Closing fragment |
| 08-21 03:40 | 40m | - / -23 | UT7UJ | -13 / - | 3 | ✓ Closing fragment |
| 08-21 02:58 | 40m | - / -20 | MM0KQC | -18 / - | 2 | Partial capture |
| 08-21 02:58 | 40m | - / -12 | YO6LM | +6 / - | 2 | Partial capture |
| 08-20 22:34 | 20m | - / - | 4L7T | -3 / - | 3 | ✓ Closing fragment |
| 08-20 22:20 | 20m | - / -12 | 9A2M | -4 / - | 2 | ✓ Closing fragment |
| 08-20 22:13 | 20m | -17 / -12 | EA8DNB | -20 / -7 | 4 | ✓ Full exchange observed |
| 08-20 04:09 | 40m | - / -24 | PC2J | -4 / - | 7 | Partial capture |
| 08-20 04:03 | 40m | - / - | DH5BM | -12 / - | 3 | Partial capture |
| 08-20 03:51 | 40m | - / - | IZ8NON | -8 / - | 2 | Partial capture |
| 08-20 03:51 | 40m | - / - | DK3TA | -10 / - | 2 | Partial capture |
| 08-20 03:38 | 40m | - / - | IK4LZH | -2 / - | 2 | Partial capture |
| 08-20 03:37 | 40m | - / -18 | G1CEC | -9 / - | 5 | Partial capture |
| 08-20 03:35 | 40m | - / - | F5NBU | +4 / - | 3 | Partial capture |
| 08-20 03:34 | 40m | - / - | IK4LZH | -6 / - | 3 | Partial capture |
| 08-20 03:32 | 40m | - / - | F1IQH | -9 / - | 4 | Partial capture |
| 08-20 02:54 | 20m | - / - | F1IQH | -19 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 021715 -1 358 W4JHV EA3HMM JN00 (x5) 020545 -23 1556 W4JHV YY5EHT 73 021645 +5 994 W4JHV F5UOU -12 (x2) 022315 -8 758 W4JHV KP4SMC R-13 (x2) 181715 +5 3016 W4JHV F4MTS JN07 (x3) 030600 -20 2198 W4JHV 4X5CG KM71 (x2)
UTC dB Audio Message 145330 -6 2361 W4JHV EA4D IN80 (x9) 145745 -2 2618 W4JHV CT2ECS IM57 (x3) 153315 -5 3015 W4JHV CR7CAU IM59 (x3)
UTC dB Audio Message 022815 +5 2795 W4JHV F1PBZ -18 (x2) 023015 -6 2856 W4JHV KF8EXX EM98 024315 -18 2432 W4JHV KD2YQS R+02 (x2) 025215 -22 798 W4JHV WD4OBP 73 025615 +7 1972 W4JHV 9A5E JN75 (x2) 004430 -8 1820 W4JHV K3HPA FN10 022200 -18 1819 W4JHV WB4SIA EN34
UTC dB Audio Message 020645 -10 2668 CQ W4JHV EM74 (x5) 021245 -11 669 SP7NC W4JHV RRR 022900 -12 1080 W4JHV 9K2MP -07 (x3) 024430 -7 729 W4JHV WV2B FM05 (x4) 190915 -14 2110 W4JHV DA1EA -05 (x2)
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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