IU7QBB — 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 IU7QBB, decoded by SO8OO in southeastern Poland. 821 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 85 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-11-04.
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 821 FT8 messages attributed to IU7QBB as the transmitting token by decoded message structure across 85 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (50%), followed by 20 m (28%) and 10 m (15%). The busiest six-hour window was 05:00-11:00 UTC, containing 45% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.
Overview
Bands
Last attributed message: 2026-11-04 19:34 UTC
Observed FT8 message patterns
- Attributed sample
- 821 messages
- Active dates
- 85 UTC dates
- Estimated median S/N
- -7 dB
- Estimated 10th-90th percentile
- -18 to +6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 133, moderate (-15 to -9 dB) 206, strong (≥ -8 dB) 482.
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 IU7QBB 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 IU7QBB
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
- JM99 · 558 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,181 km (approx.)
- Last such locator decoded
- 2026-11-04 19:29 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 | IU7QBB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-04 19:36 | 40m | - / -9 | TA2E | -21 / - | 2 | Partial capture |
| 11-04 19:34 | 40m | -6 / - | F6FHZ | - / -6 | 2 | ✓ Closing fragment |
| 11-04 19:29 | 40m | -6 / - | EA1KCN | -9 / - | 6 | ✓ Closing observed |
| 11-04 19:26 | 40m | -11 / - | R7RCO/M | - / -8 | 5 | Partial capture |
| 11-03 04:51 | 40m | -6 / - | HJ0JAP/2 | - / - | 2 | Partial capture |
| 11-03 04:41 | 80m | - / +2 | IK4TVP | +8 / - | 3 | Partial capture |
| 11-03 04:39 | 80m | -4 / -12 | HB9DBM | +12 / -3 | 5 | ✓ Full exchange observed |
| 11-03 04:38 | 80m | -8 / - | 6W/IK2HKT | - / -5 | 2 | Partial capture |
| 11-02 17:59 | 40m | -8 / - | ES4SA | - / - | 3 | Partial capture |
| 11-02 17:57 | 40m | -2 / - | UA9XL/P | - / - | 2 | Partial capture |
| 11-01 17:23 | 40m | - / - | UA4FKT | -4 / - | 3 | Partial capture |
| 11-01 17:19 | 40m | -9 / - | RU4CK/P | - / +1 | 5 | Partial capture |
| 11-01 17:15 | 40m | 0 / - | PH26BOO | - / - | 2 | Partial capture |
| 11-01 09:31 | 40m | -16 / - | M9RPO | - / -10 | 2 | ✓ Closing fragment |
| 11-01 09:30 | 40m | -20 / - | PC40EUDXF | - / - | 2 | Partial capture |
| 11-01 09:19 | 40m | -18 / -1 | PH26BOO | -10 / -16 | 3 | Partial capture |
| 10-31 17:18 | 80m | -5 / - | OH3BYZ | - / -17 | 3 | ✓ Closing fragment |
| 10-31 04:27 | 40m | - / - | UA4FKT | 0 / - | 3 | Partial capture |
| 10-28 16:59 | 40m | -8 / - | TC9ATA | - / -22 | 6 | ✓ Closing fragment |
| 10-28 16:28 | 40m | -12 / - | TC9ATA | - / - | 7 | Partial capture |
| 10-28 06:23 | 40m | -2 / - | ME7KSV | - / - | 16 | Partial capture |
| 10-27 17:50 | 40m | +8 / - | RD0L/P | - / -19 | 6 | Partial capture |
| 10-27 16:33 | 40m | - / -7 | UA4FEN | -8 / - | 2 | Partial capture |
| 10-27 16:32 | 40m | -13 / - | SH2PMO | - / -12 | 3 | ✓ Closing fragment |
| 10-27 07:58 | 40m | -12 / - | DL26BBQ | - / - | 3 | Partial capture |
| 10-27 07:49 | 40m | -10 / - | SX37VER | - / - | 2 | Partial capture |
| 10-26 17:46 | 40m | +2 / - | TR8CA | - / - | 2 | Partial capture |
| 10-23 15:01 | 40m | -8 / - | SV8KUE | - / -6 | 2 | Partial capture |
| 10-18 09:45 | 40m | -11 / - | R1BNG/P | - / - | 2 | Partial capture |
| 10-18 06:57 | 40m | -21 / - | LB7NK | - / -13 | 5 | ✓ Closing fragment |
| 10-17 16:56 | 40m | -3 / - | BH3WBQ | - / -21 | 3 | ✓ Closing fragment |
| 10-15 16:44 | 40m | +1 / - | UZ5ZU | -4 / -2 | 5 | ✓ Full exchange observed |
| 10-15 16:41 | 40m | +3 / - | SU8JOTA | - / -6 | 3 | Partial capture |
| 10-13 09:22 | 40m | -5 / - | PI7Q | - / - | 3 | Partial capture |
| 10-09 17:15 | 40m | -5 / - | DA0M | -10 / -12 | 3 | ✓ Closing observed |
| 10-09 17:13 | 40m | -3 / - | S21SDR | - / -15 | 4 | ✓ Closing fragment |
| 10-09 17:06 | 40m | -1 / - | SH4EAT | - / - | 3 | Partial capture |
| 10-09 17:03 | 40m | - / -1 | S53AK | -6 / - | 4 | ✓ Closing fragment |
| 10-08 15:39 | 40m | +2 / +9 | Z34BET | -18 / +1 | 4 | ✓ Full exchange observed |
| 10-07 16:26 | 80m | -2 / 0 | OK9BMT | -4 / -10 | 7 | ✓ Full exchange observed |
| 10-07 15:58 | 10m | -4 / - | PP1PA | - / - | 3 | Partial capture |
| 10-05 03:57 | 40m | - / - | YO2MKE | -3 / - | 3 | Partial capture |
| 10-05 03:52 | 40m | -8 / - | YN1ZGN | - / -8 | 3 | ✓ Closing fragment |
| 10-02 14:39 | 40m | -6 / - | DA1GHS/P | - / - | 2 | Partial capture |
| 10-02 14:38 | 40m | -12 / - | ISUB/IT9ACJ | - / - | 2 | Partial capture |
| 09-25 16:31 | 40m | -10 / - | Z34PEC | - / -12 | 5 | Partial capture |
| 09-24 14:34 | 10m | -13 / -3 | CN8WK | +2 / +3 | 3 | ✓ Full exchange observed |
| 09-24 03:37 | 80m | +3 / - | KY2J | - / - | 3 | Partial capture |
| 09-24 03:26 | 80m | -4 / - | 9Y4D | - / - | 7 | Partial capture |
| 09-21 17:45 | 40m | +2 / - | II8IHBC | - / -4 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 192645 -11 2087 R7RCO/M IU7QBB JM99 (x3) 192930 -7 2895 IU7QBB EA1KCN IN53 192945 -7 1439 R7RCO/M IU7QBB JM99 193000 -9 2895 IU7QBB EA1KCN IN53 (x2) 193045 -11 1438 R7RCO/M IU7QBB R-08 193100 -14 1310 IU7QBB EA1KCN IN53 193245 -6 1439 EA1KCN IU7QBB RR73 193300 -9 2662 IU7QBB EA1KCN 73 193415 -4 1439 F6FHZ IU7QBB -06 (x2) 193630 -21 1439 IU7QBB TA2E -09 (x2)
UTC dB Audio Message 171915 -5 1553 OH3BYZ IU7QBB 73 190515 -7 2932 IU7QBB RT6Z KN98 043815 -10 1664 6W/IK2HKT IU7QBB JM99 (x2) 043930 +3 1664 IU7QBB SP1EG JO73 043930 +15 1416 IU7QBB HB9DBM JN37 043945 -1 1664 HB9DBM IU7QBB -03 044000 +13 1416 IU7QBB HB9DBM R-12 044015 -6 1664 HB9DBM IU7QBB RR73 044030 +8 1417 IU7QBB HB9DBM 73 044130 +8 1583 IU7QBB IK4TVP +02 (x3) 160545 -5 1818 PC40EUDXF IU7QBB JM99 160600 -7 2692 IU7QBB PI40EUDXF -16
UTC dB Audio Message 075015 -15 2184 ME7DPV IU7QBB JM99 (x5) 161515 -9 2053 IU7QBB DO3HCS JO52 (x4) 143400 +2 2737 IU7QBB CN8WK -03 143415 -13 945 CN8WK IU7QBB R+03 143430 +2 2737 IU7QBB CN8WK RR73 155815 -4 513 PP1PA IU7QBB JM99 (x3)
UTC dB Audio Message 070345 -1 2050 VJ2Q IU7QBB JM99 (x8) 070545 -3 1580 MB0LSI IU7QBB JM99 (x2) 174845 +13 2068 VP2VKC IU7QBB JM99 (x2) 074645 +8 876 Z62NS IU7QBB JM99 (x3)
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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