GW4HZA — 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 GW4HZA, decoded by SO8OO in southeastern Poland. 3,454 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 83 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-11-06.
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 3,454 FT8 messages attributed to GW4HZA as the transmitting token by decoded message structure across 83 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (62%), followed by 60 m (20%) and 40 m (15%). Most decodes (62%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -7 dB.
Overview
Bands
Last attributed message: 2026-11-06 07:50 UTC
Observed FT8 message patterns
- Attributed sample
- 3,454 messages
- Active dates
- 83 UTC dates
- Estimated median S/N
- -7 dB
- Estimated 10th-90th percentile
- -14 to -1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 235, moderate (-15 to -9 dB) 1,105, strong (≥ -8 dB) 2,114.
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 GW4HZA 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 GW4HZA
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
- IO81 · 2,003 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,746 km (approx.)
- Last such locator decoded
- 2026-11-06 07:50 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 | GW4HZA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-06 07:48 | 80m | - / -4 | PC6A | -3 / - | 3 | ✓ Closing fragment |
| 11-06 07:42 | 80m | - / - | DL1YFS | -5 / - | 3 | ✓ Closing fragment |
| 11-06 06:49 | 80m | -4 / -18 | DO5ALO | -4 / -14 | 14 | ✓ Full exchange observed |
| 11-06 06:45 | 80m | - / -1 | OE5TXF | +16 / - | 3 | ✓ Closing fragment |
| 11-05 19:57 | 80m | -10 / - | TA7MMI | - / - | 3 | Partial capture |
| 11-05 18:52 | 80m | - / -8 | EA5DF | -7 / - | 4 | ✓ Closing fragment |
| 11-05 18:52 | 80m | - / - | UZ5CA | -3 / - | 2 | Partial capture |
| 11-05 18:05 | 80m | -11 / -9 | DA6NEL | +8 / -3 | 5 | ✓ Full exchange observed |
| 11-05 18:04 | 80m | - / -6 | OH6FSG | -4 / - | 9 | Partial capture |
| 11-05 18:01 | 80m | -6 / - | DA6WM | -5 / -20 | 3 | Partial capture |
| 11-05 17:59 | 80m | -7 / -13 | OH5KNL | +11 / -9 | 4 | ✓ Full exchange observed |
| 11-05 17:56 | 80m | -12 / - | W1AW/4 | - / - | 2 | Partial capture |
| 11-05 13:48 | 60m | - / -14 | HB9EBM | -10 / - | 3 | ✓ Closing fragment |
| 11-05 13:45 | 60m | - / -13 | SP2L | +6 / - | 3 | ✓ Closing fragment |
| 11-05 06:41 | 80m | -13 / - | DO4HBE | - / -19 | 6 | Partial capture |
| 11-05 06:30 | 80m | -10 / - | DO6ZMR | -12 / -11 | 3 | ✓ Closing observed |
| 11-05 06:24 | 80m | -14 / - | KA9FOX | - / -14 | 2 | ✓ Closing fragment |
| 11-05 06:23 | 80m | - / -3 | F4MVM | -20 / - | 2 | ✓ Closing fragment |
| 11-05 06:21 | 80m | -6 / -14 | IZ1ANZ | -10 / -3 | 5 | ✓ Full exchange observed |
| 11-05 06:18 | 80m | -4 / -8 | DD6MH | -2 / -17 | 5 | ✓ Full exchange observed |
| 11-05 06:15 | 80m | - / -18 | SQ9EJ | +5 / - | 3 | ✓ Closing fragment |
| 11-05 06:13 | 80m | - / -15 | SQ6ELK | +11 / - | 5 | Partial capture |
| 11-04 21:16 | 60m | -3 / - | VE2BJG | - / -16 | 7 | ✓ Closing fragment |
| 11-04 21:13 | 60m | -2 / -8 | EA3JIJ | -19 / -11 | 3 | ✓ Full exchange observed |
| 11-04 21:04 | 60m | +1 / -9 | IW3HXR | -15 / - | 4 | ✓ Closing observed |
| 11-04 20:57 | 60m | 0 / - | HA5UK | -20 / -3 | 3 | ✓ Closing observed |
| 11-04 20:56 | 60m | +2 / -26 | F8FKI | -7 / -16 | 9 | ✓ Full exchange observed |
| 11-04 20:55 | 60m | -3 / - | OK2MFD | - / -21 | 2 | Partial capture |
| 11-04 20:40 | 60m | - / - | IU5SCG | -4 / - | 2 | Partial capture |
| 11-04 20:39 | 60m | -5 / -11 | F5NAA | -6 / -17 | 9 | ✓ Full exchange observed |
| 11-04 20:39 | 60m | - / -6 | M0BEW | -2 / - | 3 | Partial capture |
| 11-04 20:39 | 60m | - / - | IK0RNU | -12 / - | 2 | Partial capture |
| 11-04 20:38 | 60m | -6 / - | OE1SSA | - / -18 | 2 | ✓ Closing fragment |
| 11-04 20:35 | 60m | -5 / - | DJ6YX | - / -16 | 3 | ✓ Closing fragment |
| 11-04 20:28 | 60m | -4 / +1 | GS8VL | -4 / -7 | 8 | ✓ Full exchange observed |
| 11-04 20:25 | 60m | -5 / -20 | GB1RBL | -13 / -10 | 5 | ✓ Full exchange observed |
| 11-04 20:23 | 60m | -2 / - | LB5AK | - / -15 | 4 | Partial capture |
| 11-04 20:22 | 60m | - / -13 | GB1RBL | -14 / - | 2 | Partial capture |
| 11-04 20:19 | 60m | -6 / - | SP2BDR | - / -8 | 2 | ✓ Closing fragment |
| 11-04 20:17 | 60m | - / - | IK0RNU | -6 / - | 4 | Partial capture |
| 11-04 20:12 | 60m | - / -11 | DG5PW | -8 / - | 2 | Partial capture |
| 11-04 20:11 | 60m | -8 / -4 | DL4BBY | -8 / -14 | 4 | ✓ Full exchange observed |
| 11-02 06:50 | 80m | - / -9 | DL1SO | 0 / - | 3 | ✓ Closing fragment |
| 11-02 06:49 | 80m | - / - | DD6MH | +7 / - | 2 | Partial capture |
| 11-02 06:43 | 80m | - / -4 | DG5PW | -1 / - | 3 | ✓ Closing fragment |
| 11-01 20:56 | 60m | -9 / -10 | DJ1TU | -1 / -8 | 4 | ✓ Full exchange observed |
| 11-01 20:12 | 60m | - / - | DJ2QV | -17 / - | 2 | Partial capture |
| 11-01 20:11 | 60m | - / +6 | OE8PIT | +9 / - | 3 | ✓ Closing fragment |
| 11-01 20:04 | 60m | - / -8 | 9A60CBM | -17 / - | 2 | Partial capture |
| 11-01 07:53 | 80m | - / - | DO2MOG | -18 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 065345 -3 814 GW4HZA DO5ALO R-18 (x3) 073830 -15 607 N0PB GW4HZA IO81 074030 -11 607 CQ GW4HZA IO81 (x3) 074215 -7 1380 GW4HZA DL1YFS JO41 (x3) 074845 -7 1153 GW4HZA PC6A JO21 (x3) 075030 -12 608 CQ GW4HZA IO81 075215 -10 608 GW4HZA PC5H R-12
UTC dB Audio Message 211500 -3 585 CQ GW4HZA IO81 (x2) 211600 -2 585 VE2BJG GW4HZA -16 (x7) 134515 +2 2128 GW4HZA SP2L JO94 (x3) 134815 -9 2339 GW4HZA HB9EBM JN37 (x3)
UTC dB Audio Message 072400 -3 2856 GW4HZA IK0ALT JN63 072415 -11 422 IK0ALT GW4HZA -08 072430 -2 2855 GW4HZA IK0ALT R-11 072545 -10 422 CQ GW4HZA IO81 072600 -14 1860 GW4HZA DK4BP JN58 072815 -11 422 CQ GW4HZA IO81 223730 -9 630 TC2TR GW4HZA IO81 224230 -6 631 CR7CEQ GW4HZA -18 (x2) 224415 -6 630 GW4HZA R6FX LN14 224430 +1 632 R6FX GW4HZA -04 (x2) 224515 -5 630 GW4HZA R6FX 73 224600 -3 632 ON1JP GW4HZA R-17 (x2)
UTC dB Audio Message 205615 -14 453 CQ GW4HZA IO81 a1 205700 -10 2419 GW4HZA F4EBT JN18 205900 -8 452 GW4HZA DJ3QK 73 205930 +6 1014 GW4HZA SP8AOV KO11 205930 -11 1065 GW4HZA DD7EE JO41 205945 -12 453 SP8AOV GW4HZA -15 210000 +8 1014 GW4HZA SP8AOV R-16 210000 -12 1065 GW4HZA DD7EE JO41 210030 +8 1014 GW4HZA SP8AOV 73 210100 -10 1298 GW4HZA DD7EE JO41 210700 +8 1614 GW4HZA 5B4AMM -17 (x2) 211015 -15 453 HA5AO GW4HZA IO81
UTC dB Audio Message 171900 -10 1618 GW4HZA CT1BFP R-08 172245 +3 498 SP8ADU GW4HZA -01 (x3) 172815 -1 497 CQ GW4HZA IO81 (x7) 065300 -17 486 GW4HZA R4FDD 73 065730 +4 485 GW4HZA R7OV R-03 (x2) 072730 -24 1712 GW4HZA SV1EKI KM18
UTC dB Audio Message 095930 +4 751 GW4HZA F5NIB JN06 (x12)
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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