RU9CZ — 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 RU9CZ, decoded by SO8OO in southeastern Poland. 452 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 44 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-10-16.
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 452 FT8 messages attributed to RU9CZ as the transmitting token by decoded message structure across 44 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (51%), followed by 40 m (23%) and 80 m (21%). Most decodes (86%) fell within the six-hour window 11:00-17:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.
Overview
Bands
Last attributed message: 2026-10-16 14:13 UTC
Observed FT8 message patterns
- Attributed sample
- 452 messages
- Active dates
- 44 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -21 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 164, moderate (-15 to -9 dB) 149, strong (≥ -8 dB) 139.
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 RU9CZ 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 RU9CZ
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
- MO06 · 163 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,670 km (approx.)
- Last such locator decoded
- 2026-10-16 14:13 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 | RU9CZ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 15:18 | 80m | - / -22 | HA7XL | +14 / - | 2 | Partial capture |
| 10-22 14:11 | 80m | - / -13 | RX3I | -5 / - | 2 | ✓ Closing fragment |
| 10-22 14:08 | 80m | - / -7 | RA5AD | -18 / - | 2 | ✓ Closing fragment |
| 10-21 14:55 | 40m | - / -2 | RA5AD | -6 / - | 2 | ✓ Closing fragment |
| 10-20 14:03 | 40m | - / +2 | RA1TL | -2 / - | 2 | Partial capture |
| 10-20 13:58 | 40m | - / -10 | RK1K | -18 / - | 2 | ✓ Closing fragment |
| 10-20 13:49 | 40m | - / +7 | R1TET | -20 / - | 3 | ✓ Closing fragment |
| 10-20 13:49 | 40m | - / 0 | RN1QK | -22 / - | 2 | ✓ Closing fragment |
| 10-20 13:47 | 40m | - / - | R6ZL | -2 / - | 2 | ✓ Closing fragment |
| 10-16 14:08 | 40m | - / +4 | OH3MB | 0 / - | 2 | Partial capture |
| 10-14 16:13 | 40m | -18 / 0 | RA3PGR | -3 / -11 | 5 | ✓ Full exchange observed |
| 10-14 15:58 | 80m | -14 / - | JF0JYR | - / - | 2 | Partial capture |
| 10-14 15:56 | 80m | -22 / - | RA2FCF | - / - | 3 | Partial capture |
| 10-14 15:51 | 80m | -18 / - | RG6OR | - / - | 5 | Partial capture |
| 10-11 12:09 | 40m | - / -8 | R80SAA | -10 / - | 2 | ✓ Closing fragment |
| 10-08 15:32 | 80m | - / - | LZ3SD | -2 / - | 2 | Partial capture |
| 10-08 15:28 | 80m | -20 / 0 | RD7O | -5 / - | 5 | ✓ Closing observed |
| 10-08 15:26 | 80m | -22 / - | RK6OQ | - / - | 4 | Partial capture |
| 10-08 15:19 | 80m | -16 / - | R6ZB | -11 / - | 2 | ✓ Closing observed |
| 10-08 14:38 | 80m | -22 / - | RN8C/M | - / - | 2 | Partial capture |
| 10-07 15:34 | 80m | - / -10 | R4CCE | -8 / - | 2 | ✓ Closing fragment |
| 10-07 15:30 | 80m | - / -13 | RW6ASB | 0 / - | 2 | ✓ Closing fragment |
| 10-07 15:21 | 80m | - / -7 | RK6OQ | -6 / - | 2 | ✓ Closing fragment |
| 10-07 14:50 | 80m | - / +4 | RA3UEV | -11 / - | 2 | ✓ Closing fragment |
| 10-07 14:47 | 80m | - / +6 | RA1QCZ | -12 / - | 2 | Partial capture |
| 10-06 16:52 | 80m | -20 / - | RK6OQ | - / - | 2 | Partial capture |
| 10-06 16:24 | 160m | - / -19 | R4WR | -15 / - | 2 | ✓ Closing fragment |
| 10-06 15:42 | 80m | -16 / -24 | UF3T | +2 / -1 | 4 | ✓ Full exchange observed |
| 10-06 15:39 | 80m | -15 / +1 | UN7LAN | -16 / +2 | 6 | ✓ Full exchange observed |
| 10-06 15:38 | 80m | -18 / -9 | LZ1GC | +3 / - | 4 | ✓ Closing observed |
| 10-06 15:37 | 80m | -10 / - | RA3ZK | -2 / -7 | 3 | ✓ Closing observed |
| 10-06 15:31 | 80m | - / - | R2DP | +1 / - | 2 | Partial capture |
| 10-06 15:30 | 80m | -13 / - | RA3ZK | - / - | 2 | Partial capture |
| 10-06 15:25 | 80m | - / -12 | RU4F | -12 / - | 2 | ✓ Closing fragment |
| 10-04 14:08 | 40m | - / -11 | R2BGL | -10 / - | 2 | ✓ Closing fragment |
| 10-03 11:53 | 10m | -21 / - | UB8CSU | - / - | 3 | Partial capture |
| 10-03 11:48 | 10m | -22 / - | R2FEA | - / - | 2 | ✓ Closing fragment |
| 10-03 11:47 | 10m | -19 / - | CT7AUT | - / - | 2 | Partial capture |
| 10-03 11:44 | 10m | -19 / -9 | CR7BUJ | -2 / -1 | 4 | ✓ Full exchange observed |
| 09-30 03:36 | 40m | - / -4 | R3KLE | -4 / - | 2 | ✓ Closing fragment |
| 09-26 14:52 | 40m | - / -3 | RU6K | -10 / - | 2 | Partial capture |
| 09-26 14:47 | 40m | - / -4 | RV3X | -17 / - | 3 | ✓ Closing fragment |
| 09-26 14:46 | 40m | - / - | OK1DXR | 0 / - | 7 | Partial capture |
| 09-26 05:32 | 40m | - / -14 | R3PJ | -6 / - | 2 | ✓ Closing fragment |
| 09-24 16:30 | 80m | -16 / - | RA6OY | - / - | 2 | Partial capture |
| 09-24 16:26 | 80m | -13 / 0 | UB8A | -8 / +1 | 2 | Partial capture |
| 09-24 16:22 | 80m | - / 0 | EV1R | +13 / - | 2 | ✓ Closing fragment |
| 09-24 16:20 | 80m | -12 / - | RA6OY | - / - | 3 | Partial capture |
| 09-24 16:11 | 80m | - / -6 | RG5A | +3 / - | 3 | ✓ Closing fragment |
| 09-24 16:05 | 40m | - / +6 | R4PEQ | -19 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 155245 -18 1555 RG6OR RU9CZ MO06 (x4) 155630 -24 1680 RA2FCF RU9CZ MO06 (x3) 155830 -11 1729 JF0JYR RU9CZ MO06 (x2) 140815 -18 1900 RU9CZ RA5AD -07 (x2) 141115 -7 891 RU9CZ RX3I -13 (x2) 151845 +14 854 RU9CZ HA7XL -22 (x2)
UTC dB Audio Message 140915 +1 1480 RU9CZ OH3MB R+04 141330 -20 1076 BG4OOO RU9CZ MO06 134745 -1 332 RU9CZ R6ZL +11 (x2) 134915 -23 1359 RU9CZ RN1QK +00 (x2) 134945 -17 1488 RU9CZ R1TET +07 (x3) 135800 -17 1756 RU9CZ RK1K -10 (x2) 140330 -2 2531 RU9CZ RA1TL +02 (x2) 145500 -4 1741 RU9CZ RA5AD -02 (x2)
UTC dB Audio Message 180145 -12 920 RI1FJL RU9CZ MO06 161200 -14 2577 RU9CZ RR73; RG7M <...> +32 162430 -13 1112 RU9CZ R4WR -19 (x2) 161445 -7 2717 RU9CZ R9CS/P +09 (x2) 170515 -13 1775 RU9CZ UA4FKT LO23
UTC dB Audio Message 114330 -17 1927 EA1FCS RU9CZ MO06 114415 -18 1288 CR7BUJ RU9CZ MO06 114430 -1 1234 RU9CZ CR7BUJ -09 114445 -20 1288 CR7BUJ RU9CZ R-01 114500 -4 1234 RU9CZ CR7BUJ RR73 114545 -24 1333 CU2AP RU9CZ MO06 114715 -19 1380 CT7AUT RU9CZ MO06 (x2) 114815 -19 1364 R2FEA RU9CZ MO06 (x2) 115115 -24 1365 HA5AZD RU9CZ RR73 115345 -24 1693 UB8CSU RU9CZ MO06 (x3) 120930 -18 1588 3B8HE RU9CZ MO06
UTC dB Audio Message 124115 +2 826 G7MLL RU9CZ RR73 124130 -18 1190 RU9CZ G7MLL 73 124300 +8 1769 R3KED RU9CZ MO06 124315 -6 1767 RU9CZ R3KED +04 124330 +4 1769 R3KED RU9CZ R-09 124345 -3 1766 RU9CZ R3KED RR73 124400 +4 1769 R3KED RU9CZ 73 124430 +7 1769 R6OAG RU9CZ MO06 124445 -11 862 RU9CZ G8IXM JO02 124500 +13 551 R6OAG RU9CZ MO06 124515 -22 862 RU9CZ G8IXM JO02 (x2) 124715 -1 1225 RZ9A RU9CZ MO06 (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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