RV9CX — 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 RV9CX, decoded by SO8OO in southeastern Poland. 1,846 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 87 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-22.
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 1,846 FT8 messages attributed to RV9CX as the transmitting token by decoded message structure across 87 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (29%), followed by 40 m (24%) and 80 m (22%). Most decodes (63%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11.5 dB.
Overview
Bands
Last attributed message: 2026-10-22 00:21 UTC
Observed FT8 message patterns
- Attributed sample
- 1,846 messages
- Active dates
- 87 UTC dates
- Estimated median S/N
- -11.5 dB
- Estimated 10th-90th percentile
- -18.1 to 0 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 446, moderate (-15 to -9 dB) 772, strong (≥ -8 dB) 628.
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 RV9CX 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 RV9CX
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 · 325 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,670 km (approx.)
- Last such locator decoded
- 2026-10-22 00:21 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 | RV9CX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 00:22 | 80m | - / - | YO8XFU | -4 / - | 2 | Partial capture |
| 10-22 00:21 | 80m | - / - | ON4MAP | -4 / - | 5 | Partial capture |
| 10-22 00:19 | 80m | +3 / - | R2EA/P | - / 0 | 3 | ✓ Closing fragment |
| 10-22 00:06 | 160m | - / - | IK1BQD | +12 / - | 7 | Partial capture |
| 10-22 00:02 | 160m | 0 / - | 7P8GE | - / -24 | 5 | ✓ Closing fragment |
| 10-20 23:28 | 160m | - / -11 | RL6ZK | -10 / - | 2 | ✓ Closing fragment |
| 10-18 01:44 | 160m | - / -23 | RD9M/3 | -15 / - | 3 | Partial capture |
| 10-18 01:44 | 160m | - / -11 | RK3AW | -2 / - | 4 | Partial capture |
| 10-18 01:43 | 160m | -18 / - | R4HJY | - / -22 | 2 | ✓ Closing fragment |
| 10-17 19:59 | 160m | -18 / - | R9CS/P | - / -10 | 3 | ✓ Closing fragment |
| 10-17 18:34 | 40m | -6 / - | R9CS/P | -10 / 0 | 4 | ✓ Full exchange observed |
| 10-17 17:58 | 160m | - / - | SP9DGO | +7 / - | 5 | Partial capture |
| 10-17 17:57 | 160m | - / - | RU3T | -8 / - | 2 | ✓ Closing fragment |
| 10-17 17:56 | 160m | -20 / - | R8KAA | - / -2 | 2 | ✓ Closing fragment |
| 10-17 17:02 | 160m | -24 / - | R7ZY | - / -19 | 2 | Partial capture |
| 10-17 15:32 | 160m | -20 / - | H49A | - / -21 | 3 | Partial capture |
| 10-17 01:07 | 160m | - / - | 9A3K | +14 / - | 3 | Partial capture |
| 10-16 21:57 | 160m | -23 / -20 | UA7K | -4 / - | 3 | ✓ Closing observed |
| 10-15 21:29 | 80m | -2 / - | RU3BF | - / -24 | 2 | ✓ Closing fragment |
| 10-15 19:39 | 80m | - / - | SP2ADY | +1 / - | 3 | Partial capture |
| 10-15 19:20 | 80m | - / -11 | R7ZY | +2 / - | 2 | ✓ Closing fragment |
| 10-15 18:51 | 80m | - / - | RX7KIR | -3 / - | 2 | Partial capture |
| 10-15 17:34 | 80m | -8 / - | UA9JGS | - / -1 | 2 | Partial capture |
| 10-15 17:25 | 80m | -8 / - | R2ZAA | - / -14 | 2 | Partial capture |
| 10-15 16:55 | 80m | -12 / -9 | R6AR | -1 / - | 3 | ✓ Closing observed |
| 10-15 16:51 | 80m | - / -14 | R6AR | -2 / - | 2 | Partial capture |
| 10-15 16:45 | 80m | -10 / -1 | RW3DBX | -11 / -6 | 4 | ✓ Full exchange observed |
| 10-15 16:03 | 80m | - / -8 | YO7CFD | +16 / - | 4 | Partial capture |
| 10-15 15:59 | 80m | -15 / -15 | RK6MC | -14 / -6 | 11 | ✓ Full exchange observed |
| 10-15 15:58 | 80m | -17 / -3 | RA4FEA | 0 / -6 | 3 | Partial capture |
| 10-15 15:57 | 80m | -20 / -7 | R6AR | -6 / -3 | 5 | Partial capture |
| 10-15 15:54 | 80m | -24 / - | R9JDA | - / -17 | 3 | ✓ Closing fragment |
| 10-15 15:46 | 80m | -18 / - | RX9KJ | - / +1 | 4 | Partial capture |
| 10-15 15:44 | 80m | -13 / - | RW3VR | -5 / -6 | 3 | Partial capture |
| 10-11 19:57 | 160m | -9 / - | UA1ANA | - / -21 | 2 | Partial capture |
| 10-11 17:26 | 160m | - / - | TK4RB | -16 / - | 4 | Partial capture |
| 10-11 17:20 | 160m | - / -14 | DK3UA | +8 / - | 5 | ✓ Closing fragment |
| 10-11 17:15 | 160m | - / - | OE5RLP | +4 / - | 4 | Partial capture |
| 10-11 17:13 | 160m | - / - | DK3UA | +10 / - | 3 | Partial capture |
| 10-07 18:30 | 160m | - / - | R9CS/P | -13 / - | 2 | ✓ Closing fragment |
| 10-04 20:31 | 160m | -2 / - | ZS1J | - / - | 2 | Partial capture |
| 10-04 18:40 | 160m | - / - | SM1NJC | -8 / - | 2 | Partial capture |
| 10-04 18:38 | 160m | -18 / -10 | R3YCJ | -14 / -10 | 4 | ✓ Full exchange observed |
| 10-04 03:06 | 40m | -13 / -3 | RD7O | -3 / -3 | 5 | ✓ Full exchange observed |
| 10-04 00:35 | 160m | -10 / 0 | RO2E/P | 0 / -5 | 3 | ✓ Full exchange observed |
| 10-04 00:31 | 160m | -10 / +7 | RO2E/P | 0 / -5 | 3 | Partial capture |
| 10-03 22:04 | 160m | -14 / -7 | UA3AGW | +12 / +10 | 4 | ✓ Full exchange observed |
| 10-03 20:30 | 160m | -18 / -11 | RM5P | -7 / -14 | 4 | ✓ Full exchange observed |
| 10-03 16:36 | 40m | - / -16 | R2DDA | -2 / - | 2 | ✓ Closing fragment |
| 10-03 12:06 | 10m | +6 / - | R2FEA | - / -2 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 001900 +2 2240 R2EA/P RV9CX +00 (x3) 002015 +18 2192 RV9CX 9A60CBM R-05 002100 +5 2240 CQ RV9CX MO06 002145 +1 1502 RV9CX ON4MAP JO20 002145 +14 2240 RV9CX EA2DYB IN83 002215 -6 1333 RV9CX YO8XFU KN36 002215 -4 1502 RV9CX ON4MAP JO20 002245 -2 1333 RV9CX YO8XFU KN36 002245 -2 1502 RV9CX ON4MAP JO20 002245 +10 831 RV9CX EB1LA IN73 002315 -7 1502 RV9CX ON4MAP JO20 (x2) 132015 -12 1410 RV9CX RU3DX 73
UTC dB Audio Message 185930 -10 2339 RW0AJ RV9CX -07 (x3) 000215 -10 2339 7P8GE RV9CX -24 (x5) 000600 +14 3018 RV9CX IK1BQD JN35 (x7)
UTC dB Audio Message 145100 -16 2351 RV9CX SQ9AQQ R-18 145215 -13 2258 RV9CX R4RZ R-08 191415 -16 2394 IQ9SZ/3 RV9CX -11 (x2) 163615 +0 870 RV9CX R2DDA R-16 (x2) 030645 -13 2387 RD7O RV9CX -03 030700 +1 1842 RV9CX RD7O R-03 030715 -13 2386 RD7O RV9CX RR73 030730 -7 1842 RV9CX RD7O R-03 (x2) 183445 -8 2976 R9CS/P RV9CX +00 183500 -9 2753 RV9CX R9CS/P R+20 183515 -4 2977 R9CS/P RV9CX RR73 183530 -10 2752 RV9CX R9CS/P 73
UTC dB Audio Message 112900 -5 464 RV9CX EA8DEG RR73 112900 -14 2410 RV9CX DN9AEM JN59 153545 -16 2328 RV9CX EA8AQV IL28 142100 -10 1421 RV9CX IK6GPZ JN62 (x8) 053800 -12 1814 RV9CX RQ6Z R+03 (x2) 120645 +7 2362 R2FEA RV9CX -02 (x2)
UTC dB Audio Message 195515 -6 2423 TJ1GD RV9CX -14 (x3) 202445 +2 2422 R7RCG RV9CX +00 000515 -2 2342 RV9CX XQ1KK R-14 (x2) 134445 -13 2275 <R3DFE/M> RV9CX -03 134500 -7 2960 RV9CX R3DFE/M R+14 062245 +0 2275 R4HLO RV9CX +00 063215 -3 2275 RA4CEH RV9CX -02 064845 -14 2275 RA3BU RV9CX -03 (x2) 075015 -12 2318 RV9CX R3RR R-16 075615 -7 2274 RN3AKL RV9CX -02 075715 -13 2275 UB4CKD RV9CX 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.
Explore CW reception at SO8OOFT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee