R4FV — 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 R4FV, decoded by SO8OO in southeastern Poland. 2,476 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 77 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-11-03.
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 2,476 FT8 messages attributed to R4FV as the transmitting token by decoded message structure across 77 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (45%), followed by 80 m (34%) and 20 m (18%). Most decodes (76%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (71%); the estimated median was -4 dB.
Overview
Bands
Last attributed message: 2026-11-03 20:08 UTC
Observed FT8 message patterns
- Attributed sample
- 2,476 messages
- Active dates
- 77 UTC dates
- Estimated median S/N
- -4 dB
- Estimated 10th-90th percentile
- -14 to +8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 157, moderate (-15 to -9 dB) 565, strong (≥ -8 dB) 1,754.
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 R4FV 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 R4FV
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
- LO22 · 874 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,634 km (approx.)
- Last such locator decoded
- 2026-11-03 19:55 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 | R4FV S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-03 19:58 | 80m | +2 / - | R1ZBR | - / -11 | 2 | ✓ Closing fragment |
| 11-03 19:53 | 80m | -9 / - | JH0NOS | - / - | 2 | Partial capture |
| 11-03 19:50 | 80m | - / -16 | R2BPS | -15 / - | 2 | Partial capture |
| 11-03 19:47 | 80m | -17 / -6 | UD1I | -18 / - | 3 | ✓ Closing observed |
| 11-03 19:40 | 80m | -12 / - | ON4AEO | - / -14 | 2 | Partial capture |
| 11-03 19:39 | 80m | -13 / -6 | OH8WW | -6 / -12 | 4 | ✓ Full exchange observed |
| 11-01 19:49 | 80m | - / -17 | R1BZ | -1 / - | 2 | Partial capture |
| 11-01 19:39 | 80m | - / -15 | JF2XGF | -22 / - | 2 | ✓ Closing fragment |
| 11-01 19:25 | 80m | - / - | RL3QGD | -10 / - | 2 | ✓ Closing fragment |
| 11-01 19:24 | 80m | - / -17 | R5AJ | +7 / - | 2 | ✓ Closing fragment |
| 10-30 19:23 | 80m | - / - | OE6TNO | -3 / - | 8 | Partial capture |
| 10-30 19:19 | 80m | - / -6 | UA4POO | -8 / - | 2 | ✓ Closing fragment |
| 10-30 19:18 | 80m | - / - | OE6TNO | +2 / - | 4 | Partial capture |
| 10-29 19:33 | 80m | - / -14 | EC3A | -17 / - | 2 | Partial capture |
| 10-29 19:32 | 80m | -8 / - | JE7JDL | - / -12 | 4 | ✓ Closing fragment |
| 10-29 19:27 | 80m | - / - | DO5AX | -16 / - | 2 | Partial capture |
| 10-29 19:25 | 80m | 0 / - | R2OM | - / -2 | 2 | ✓ Closing fragment |
| 10-29 19:24 | 80m | -3 / -10 | DH6BH | +1 / - | 4 | ✓ Closing observed |
| 10-29 19:23 | 80m | - / - | IU5HIU | -14 / - | 3 | Partial capture |
| 10-29 19:14 | 80m | -12 / -8 | S52KK | +5 / -16 | 5 | ✓ Full exchange observed |
| 10-29 19:13 | 80m | -11 / -13 | JJ3JHP | -13 / -12 | 5 | ✓ Full exchange observed |
| 10-29 19:10 | 80m | -16 / +1 | RU3KA | -4 / - | 3 | ✓ Closing observed |
| 10-29 19:10 | 80m | - / - | IZ2SXZ | -12 / - | 4 | Partial capture |
| 10-29 19:07 | 80m | +2 / - | JA9NFO | - / -16 | 2 | Partial capture |
| 10-29 19:06 | 80m | -6 / - | OD5SB | - / -15 | 3 | Partial capture |
| 10-29 18:40 | 80m | -2 / - | RL3P | - / +1 | 2 | ✓ Closing fragment |
| 10-29 18:39 | 80m | - / -20 | DL5MO | -10 / - | 2 | Partial capture |
| 10-29 18:36 | 80m | -10 / - | RA4AUY | - / -3 | 3 | Partial capture |
| 10-28 04:57 | 80m | - / +1 | IK4TVP | -14 / - | 2 | Partial capture |
| 10-27 19:14 | 40m | -12 / -2 | GM4FDM | +4 / -7 | 5 | ✓ Full exchange observed |
| 10-27 19:08 | 40m | - / - | M0YFT | -10 / - | 4 | Partial capture |
| 10-27 19:04 | 40m | - / - | DL9EVO | -2 / - | 3 | Partial capture |
| 10-27 18:36 | 80m | -4 / -16 | HA4UC | 0 / - | 3 | ✓ Closing observed |
| 10-27 18:34 | 80m | - / - | DO7MCL | -2 / - | 4 | Partial capture |
| 10-27 18:29 | 80m | -9 / - | R8CKD | - / -13 | 2 | ✓ Closing fragment |
| 10-27 18:27 | 80m | -6 / - | UB4HTD | - / -8 | 2 | ✓ Closing fragment |
| 10-27 18:21 | 80m | -10 / -2 | GI4SNA | -7 / -11 | 6 | ✓ Full exchange observed |
| 10-26 19:51 | 80m | - / -16 | OD5ZZ | -13 / - | 2 | Partial capture |
| 10-26 19:48 | 80m | -2 / -15 | PE2JMR | +2 / -15 | 4 | ✓ Full exchange observed |
| 10-22 19:51 | 160m | - / -8 | HA7TM | +9 / - | 2 | ✓ Closing fragment |
| 10-22 19:43 | 160m | - / -14 | RV3V | -16 / - | 2 | ✓ Closing fragment |
| 10-22 06:20 | 40m | -17 / -5 | F4DIA | -10 / - | 2 | Partial capture |
| 10-22 05:58 | 40m | -8 / - | TO4A | - / - | 5 | Partial capture |
| 10-22 05:50 | 40m | -8 / - | TO4A | - / - | 4 | Partial capture |
| 10-21 05:10 | 40m | -9 / - | YV6BXN | - / - | 2 | Partial capture |
| 10-21 05:07 | 40m | -10 / - | OA4ENG | - / -22 | 4 | ✓ Closing fragment |
| 10-19 06:59 | 40m | - / -5 | ES6DO | 0 / - | 2 | ✓ Closing fragment |
| 10-18 18:36 | 80m | -10 / - | UA3VBD | - / -11 | 2 | ✓ Closing fragment |
| 10-18 16:53 | 80m | -14 / +1 | UB3DQL | -9 / -14 | 4 | ✓ Full exchange observed |
| 10-18 16:50 | 80m | - / -16 | SP3IPA | +8 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 193515 -22 1189 CQ R4FV LO22 194230 -24 1642 R4FV R2ATY RR73 180015 +1 2427 R4FV RN3RFZ -15 (x3) 180700 -19 1570 R4FV RA3RDN R-25 (x2) 181315 -2 1634 R4FV R3GO -21 (x2) 210945 -6 543 R4FV UA7K R-19 194330 -11 1076 R4FV RV3V -14 (x2) 195115 +9 2106 R4FV HA7TM -08 (x2) 170230 -21 1795 R4FV R3RR RR73
UTC dB Audio Message 194030 -10 1726 ON4AEO R4FV -18 194700 -14 1723 R4FV UD1I -06 (x2) 194745 -17 1412 UD1I R4FV 73 195045 -16 881 R4FV R2BPS R-16 (x2) 195315 -10 956 JH0NOS R4FV LO22 (x2) 195530 +6 607 R1ZBR R4FV LO22 (x3) 200145 -13 2075 UN9FF R4FV R-23 200545 -17 1537 RW3O R4FV R-06 200800 -5 803 R1CBK R4FV R-21 200845 -8 1502 R4FV SP1EG JO73
UTC dB Audio Message 190430 -5 999 R4FV DL9EVO JO51 (x2) 190515 -15 999 CQ R4FV LO22 (x3) 190830 -12 999 R4FV M0YFT IO83 190845 -2 999 BI1AFK R4FV -17 190900 -7 999 R4FV M0YFT IO83 (x3) 191415 -11 999 GM4FDM R4FV -07 (x2) 191600 +3 2368 R4FV GM4FDM R-02 (x2) 191645 -13 2368 GM4FDM R4FV RR73
UTC dB Audio Message 052030 +15 821 CQ R4FV LO22 (x3) 123900 +4 1380 HL5JYS R4FV -21 (x2) 124030 +5 1637 <...> R4FV -09 124315 -1 1822 R9OBJ/P R4FV RR73 200630 -14 916 CQ R4FV LO22 200945 -21 1408 AA3B R4FV -12 160500 -9 2688 R4FV M1WLK -17 (x3) 160700 -17 2304 R4FV BG7BMG RR73 (x2) 161230 -24 1566 R4FV DB1EF JO41
UTC dB Audio Message 073930 -17 1438 R4FV RZ6L KN97 (x2) 081215 -12 491 R4FV IK4LZH 73 081315 -11 983 R4FV UA6HBJ RR73
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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