RW4HD — 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 RW4HD, decoded by SO8OO in southeastern Poland. 1,380 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 83 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-18.
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 1,380 FT8 messages attributed to RW4HD as the transmitting token by decoded message structure across 83 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (49%), followed by 80 m (21%) and 20 m (18%). Most decodes (76%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -6 dB.
Overview
Bands
Last attributed message: 2026-10-18 17:41 UTC
Observed FT8 message patterns
- Attributed sample
- 1,380 messages
- Active dates
- 83 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -17.4 to +4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 210, moderate (-15 to -9 dB) 367, strong (≥ -8 dB) 803.
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 RW4HD 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 RW4HD
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
- LO53 · 621 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,036 km (approx.)
- Last such locator decoded
- 2026-10-18 17:41 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 | RW4HD S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-18 17:40 | 80m | 0 / - | R6ODX | - / - | 3 | Partial capture |
| 10-18 17:38 | 80m | -11 / - | RC9WC | - / +4 | 4 | ✓ Closing fragment |
| 10-16 19:02 | 80m | -4 / - | JA1BJY | - / - | 2 | Partial capture |
| 10-16 18:57 | 80m | -8 / - | RA1AGA | - / -15 | 6 | ✓ Closing fragment |
| 10-16 18:53 | 80m | -8 / - | JE3GRQ | - / -1 | 4 | ✓ Closing fragment |
| 10-16 18:52 | 80m | -8 / -5 | UA9FMT | -4 / +10 | 4 | ✓ Full exchange observed |
| 10-16 18:45 | 80m | -6 / -3 | PI4S/J | +6 / -12 | 4 | Partial capture |
| 10-16 18:44 | 80m | - / -7 | YO5QDI | +3 / - | 2 | ✓ Closing fragment |
| 10-16 18:32 | 80m | -13 / - | RK0SK | - / - | 2 | Partial capture |
| 10-16 18:30 | 80m | -13 / - | R4SCQ | - / -5 | 3 | ✓ Closing fragment |
| 10-16 18:27 | 80m | - / -4 | R2DAY | -9 / - | 3 | ✓ Closing fragment |
| 10-16 18:23 | 80m | -7 / -18 | OK1GZ | +10 / -18 | 5 | ✓ Full exchange observed |
| 10-16 18:22 | 80m | -13 / - | RK0SK | - / - | 2 | Partial capture |
| 10-16 18:17 | 80m | -8 / - | RK0SK | - / - | 3 | Partial capture |
| 10-16 18:14 | 80m | -10 / +2 | RA2FCF | 0 / -8 | 4 | ✓ Full exchange observed |
| 10-16 18:11 | 80m | -8 / - | BG3NQT | - / -21 | 2 | Partial capture |
| 10-16 18:09 | 80m | -8 / - | R2BPS | - / -16 | 2 | ✓ Closing fragment |
| 10-16 18:06 | 80m | -10 / - | R1CBW | - / +2 | 3 | ✓ Closing fragment |
| 10-16 18:03 | 80m | -10 / - | R3XDT | - / -13 | 4 | ✓ Closing fragment |
| 10-16 17:55 | 80m | -14 / -13 | R2EA/P | +3 / - | 2 | ✓ Closing observed |
| 10-13 15:55 | 160m | - / -3 | RU3X | -20 / - | 3 | ✓ Closing fragment |
| 10-13 15:54 | 160m | - / 0 | RC1TF | -17 / - | 2 | ✓ Closing fragment |
| 10-13 15:43 | 80m | -14 / -1 | RK4UZ | +1 / - | 5 | ✓ Closing observed |
| 10-13 15:32 | 80m | -12 / -2 | RA4P/P | -16 / -4 | 7 | Partial capture |
| 10-13 15:30 | 80m | -12 / - | RA7E/P | - / - | 2 | ✓ Closing fragment |
| 10-13 15:28 | 40m | -3 / - | UA1ALY | - / -3 | 2 | ✓ Closing fragment |
| 10-13 15:27 | 40m | -1 / -13 | UB6ZDJ | -11 / -2 | 4 | ✓ Full exchange observed |
| 10-13 15:26 | 40m | -4 / - | RX9WM | -12 / +2 | 3 | ✓ Closing observed |
| 10-13 15:24 | 40m | -4 / - | OE8DSK | - / - | 2 | Partial capture |
| 10-13 15:22 | 40m | -6 / - | R9UIW | - / -3 | 4 | ✓ Closing fragment |
| 10-13 15:18 | 40m | 0 / - | R5BM/6 | - / 0 | 3 | Partial capture |
| 10-12 16:11 | 80m | -4 / -2 | UB6OAJ | -12 / -3 | 4 | ✓ Full exchange observed |
| 10-12 16:09 | 80m | -4 / - | IV3SKB | - / - | 2 | Partial capture |
| 10-12 15:23 | 40m | 0 / - | R7RCO/M | - / -11 | 3 | Partial capture |
| 10-12 15:21 | 40m | -2 / - | UA9JGS | - / -5 | 3 | ✓ Closing fragment |
| 10-12 15:13 | 40m | -4 / - | R5GG | - / +9 | 2 | ✓ Closing fragment |
| 10-12 15:08 | 40m | -4 / - | UI4I | - / -11 | 4 | Partial capture |
| 10-12 15:06 | 40m | -2 / -3 | R6SBN | -2 / -5 | 10 | ✓ Full exchange observed |
| 10-12 15:04 | 40m | - / +5 | UA3IDQ | -6 / - | 2 | ✓ Closing fragment |
| 10-12 15:01 | 40m | -4 / - | RN1TG | -8 / -8 | 3 | ✓ Closing observed |
| 10-12 05:57 | 40m | - / 0 | R7ZY | -7 / - | 2 | ✓ Closing fragment |
| 10-11 15:49 | 40m | -1 / - | UA4COA | -6 / - | 6 | ✓ Closing observed |
| 10-11 15:48 | 40m | 0 / - | RU1QX | - / - | 2 | Partial capture |
| 10-11 15:45 | 40m | -3 / - | R6YG | -8 / +1 | 5 | ✓ Full exchange observed |
| 10-11 15:44 | 40m | -15 / -8 | SQ4DX | -12 / -15 | 5 | ✓ Full exchange observed |
| 10-11 15:02 | 40m | +1 / - | RZ0SW | - / -6 | 3 | ✓ Closing fragment |
| 10-11 14:59 | 40m | 0 / - | YC6HIR | - / -7 | 4 | ✓ Closing fragment |
| 10-11 04:58 | 40m | -8 / - | 4O/DL1FDH | - / - | 2 | Partial capture |
| 10-11 04:55 | 40m | -9 / - | RA3X | - / +8 | 3 | ✓ Closing fragment |
| 10-11 04:52 | 40m | -8 / +4 | R2ATY | -10 / - | 4 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 185715 -11 1369 RA1AGA RW4HD LO53 (x6) 190230 -6 1368 JA1BJY RW4HD LO53 (x2) 173815 -19 2606 RC9WC RW4HD LO53 (x4) 174045 +2 2606 R6ODX RW4HD LO53 (x3)
UTC dB Audio Message 192315 -9 2450 UG4I RW4HD LO53 (x4) 154845 +3 2251 RW4HD RY3K -03 (x2) 155100 -19 1983 RN3QOO RW4HD LO53 155115 -9 1199 RW4HD RN3QOO -01 155130 -22 1983 RN3QOO RW4HD R-04 155145 -10 1199 RW4HD RN3QOO RR73 155400 -24 1761 RW4HD RC1TF +00 (x2) 155545 -20 2079 RW4HD RU3X -03 (x3)
UTC dB Audio Message 152315 -6 2121 R9UIW RW4HD R-03 (x2) 152415 -3 2120 OE8DSK RW4HD LO53 (x2) 152545 -3 2120 CQ RW4HD LO53 (x2) 152645 -5 2120 RX9WM RW4HD +02 (x2) 152730 -12 2125 RW4HD RX9WM 73 152745 -1 2120 UB6ZDJ RW4HD -02 152800 -9 1586 RW4HD UB6ZDJ R-13 152815 -1 2120 UB6ZDJ RW4HD RR73 152830 -13 1585 RW4HD UB6ZDJ 73 152845 -3 2120 UA1ALY RW4HD -03 (x2)
UTC dB Audio Message 060845 -18 1828 EU2ABM RW4HD -09 (x2) 061115 -17 1828 UC8U RW4HD R-06 (x2) 063700 -18 1935 UA3POG RW4HD -21 (x2) 153430 -6 606 EY7BP RW4HD LO53 153845 +6 2712 RX3DPK/LH RW4HD LO53 (x6) 104415 -5 2034 <...> RW4HD +09 104715 -9 2035 R6DOB/M RW4HD -14
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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