SP5RZL — 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 SP5RZL, decoded by SO8OO in southeastern Poland. 1,222 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, across 56 UTC dates in the available aggregate history. Observed between 2026-06-06 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 1,222 FT8 messages attributed to SP5RZL as the transmitting token by decoded message structure across 56 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (62%), followed by 40 m (38%) and 160 m (0%). Most decodes (53%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (89%); the estimated median was +3.3 dB.
Overview
Bands
Last attributed message: 2026-10-18 11:04 UTC
Observed FT8 message patterns
- Attributed sample
- 1,222 messages
- Active dates
- 56 UTC dates
- Estimated median S/N
- +3.3 dB
- Estimated 10th-90th percentile
- -9 to +15.2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 122, strong (≥ -8 dB) 1,088.
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 SP5RZL 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 SP5RZL
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
- KO01 · 432 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 182 km (approx.)
- Last such locator decoded
- 2026-10-17 17:49 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 | SP5RZL S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-18 11:02 | 40m | -7 / - | SP9RM | +1 / -6 | 6 | ✓ Full exchange observed |
| 10-18 11:02 | 40m | -10 / -1 | SQ5TOM | -10 / -5 | 4 | ✓ Full exchange observed |
| 10-18 11:01 | 40m | - / - | SP2GRP | -11 / - | 3 | Partial capture |
| 10-18 11:01 | 40m | - / - | SP9RBW | -3 / - | 10 | Partial capture |
| 10-18 10:59 | 40m | -10 / -4 | SP7PGK | -2 / -3 | 7 | Partial capture |
| 10-18 10:57 | 40m | -6 / +3 | SP5NON | -5 / -3 | 8 | ✓ Full exchange observed |
| 10-18 10:56 | 40m | - / 0 | YO5OSF | +3 / - | 7 | ✓ Closing fragment |
| 10-18 10:56 | 40m | - / - | SP2GRP | -19 / - | 4 | Partial capture |
| 10-18 10:54 | 40m | -6 / - | SQ9MEZ | +3 / -3 | 4 | ✓ Closing observed |
| 10-18 10:53 | 40m | -12 / - | SP7CWZ | - / -18 | 2 | Partial capture |
| 10-18 10:51 | 40m | -8 / 0 | 3Z6O | -1 / -2 | 5 | ✓ Full exchange observed |
| 10-18 10:51 | 40m | -6 / +3 | SP7MTU | +1 / -1 | 12 | Partial capture |
| 10-18 10:48 | 40m | - / -8 | SP3OP | -16 / - | 2 | Partial capture |
| 10-18 10:47 | 40m | - / - | SP3AKK | -18 / - | 3 | Partial capture |
| 10-17 17:50 | 80m | +9 / - | EU1AFX | - / -11 | 2 | ✓ Closing fragment |
| 10-17 03:35 | 80m | - / - | SV8SXV | -10 / - | 3 | Partial capture |
| 10-17 03:31 | 80m | +2 / -7 | DL8TV | +13 / -10 | 5 | ✓ Full exchange observed |
| 10-17 03:29 | 80m | - / - | F5MXH | +9 / - | 14 | Partial capture |
| 10-17 03:28 | 80m | +6 / -10 | DA6OOM | -6 / -16 | 4 | ✓ Full exchange observed |
| 10-17 03:25 | 80m | +1 / - | OH3GBW | +5 / -10 | 4 | ✓ Full exchange observed |
| 10-17 03:23 | 80m | - / - | F5MXH | +4 / - | 4 | Partial capture |
| 10-17 03:22 | 80m | - / - | SV8SXV | -4 / - | 4 | Partial capture |
| 10-17 03:21 | 80m | +2 / -2 | DO9BLX | +7 / -14 | 5 | ✓ Full exchange observed |
| 10-17 03:18 | 80m | -3 / - | SP9RBW | +17 / -5 | 6 | Partial capture |
| 10-17 03:15 | 80m | +5 / +7 | DM1EE | +2 / -14 | 5 | ✓ Full exchange observed |
| 10-17 03:14 | 80m | - / - | F5MXH | +1 / - | 11 | Partial capture |
| 10-17 03:09 | 80m | +6 / -4 | UT5MB | -2 / -15 | 5 | ✓ Full exchange observed |
| 10-17 03:07 | 80m | - / - | F5MXH | -4 / - | 4 | Partial capture |
| 10-17 03:06 | 80m | +7 / +10 | YO6GLT | -8 / -12 | 4 | ✓ Full exchange observed |
| 10-17 03:02 | 80m | +2 / +2 | ON4MAP | -6 / -21 | 5 | ✓ Full exchange observed |
| 10-17 03:01 | 80m | +2 / +5 | UA6LQZ | -3 / -11 | 5 | ✓ Full exchange observed |
| 10-17 02:56 | 80m | +2 / -1 | DL3AMW | +13 / -9 | 5 | ✓ Full exchange observed |
| 10-17 02:53 | 80m | - / - | F5MXH | +6 / - | 6 | Partial capture |
| 10-17 02:51 | 80m | - / - | F5OYA/P | -6 / - | 4 | Partial capture |
| 10-17 02:48 | 80m | +5 / -8 | GM6URC | -3 / -16 | 6 | ✓ Full exchange observed |
| 10-17 02:47 | 80m | +7 / -5 | RA4FEA | +3 / -12 | 5 | ✓ Full exchange observed |
| 10-17 02:47 | 80m | - / - | EI4JFB | +2 / - | 3 | Partial capture |
| 10-17 02:47 | 80m | +14 / +8 | F5MXH | +4 / -17 | 8 | ✓ Full exchange observed |
| 10-17 02:45 | 80m | +4 / 0 | F5HNQ | +13 / -16 | 5 | ✓ Full exchange observed |
| 10-16 19:33 | 80m | +6 / - | SQ9MEZ | - / -17 | 6 | ✓ Closing fragment |
| 10-16 19:31 | 80m | +8 / +10 | HA1TAB | +3 / -11 | 4 | ✓ Full exchange observed |
| 10-16 19:31 | 80m | - / - | SQ9OUG | +7 / - | 15 | Partial capture |
| 10-16 15:32 | 40m | - / - | SP7VLU | -1 / - | 4 | Partial capture |
| 10-16 15:30 | 40m | -5 / -2 | F4GUK | -4 / -3 | 5 | ✓ Full exchange observed |
| 10-16 15:30 | 40m | - / - | SP9RBW | 0 / - | 14 | Partial capture |
| 10-16 15:30 | 40m | - / - | SQ9OUG | +4 / - | 8 | Partial capture |
| 10-15 15:13 | 40m | - / - | SP8RWI | -12 / - | 8 | Partial capture |
| 10-15 15:08 | 40m | -1 / - | OZ1ITS | - / -12 | 2 | ✓ Closing fragment |
| 10-15 15:05 | 40m | -3 / -9 | F5MXH | -10 / -6 | 5 | ✓ Full exchange observed |
| 10-15 15:05 | 40m | -1 / - | DK9LF | -12 / -17 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 110245 -10 1032 SP5RZL SQ5TOM 73 110245 +3 2362 SP5RZL SP9RM JO90 110245 +3 1512 SP5RZL SP9RBW JO90 110300 -7 1035 SP9RM SP5RZL -06 110315 -1 2362 SP5RZL SP9RM R+11 110315 -11 1103 SP5RZL SP2GRP JO94 110330 -8 1035 SP9RM SP5RZL RR73 110345 +0 2362 SP5RZL SP9RM 73 110345 +2 1512 SP5RZL SP9RBW JO90 (x2) 110430 -7 1035 SP9RM SP5RZL RR73 110545 +1 1512 SP5RZL SP9RBW JO90 (x4)
UTC dB Audio Message 033715 +7 1001 SP5RZL F5MXH JN07 033730 -3 1000 CQ SP5RZL KO01 033745 +7 1001 SP5RZL F5MXH JN07 033800 -2 1001 CQ SP5RZL KO01 (x8) 175000 +9 999 EU1AFX SP5RZL -11 (x2) 184200 +9 999 HF50HSP SP5RZL -03 185045 +16 661 SP5RZL SP9PGB JN99
UTC dB Audio Message 172730 +0 1029 CQ SP5RZL KO01 a1 172745 -17 1455 SP5RZL ON7KEI JO21 (x3)
UTC dB Audio Message 171700 -15 993 CQ SP5RZL KO01
UTC dB Audio Message 072015 -20 1766 SP5RZL F4HSB JN37 (x2) 072115 -15 1068 SP5RZL 9A4ZM JN86 072245 -3 1071 SP5RZL PC2J JO22 (x3) 072915 -16 1072 SP5RZL PD0RCQ JO21 (x2) 073215 -3 1068 SP5RZL 9A4ZM JN86 (x3) 142645 -11 2191 SP5RZL PD7RF R-04 (x2) 115845 +3 1782 SP5RZL DH1FA -16 (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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