R4CHQ — 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 R4CHQ, decoded by SO8OO in southeastern Poland. 362 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 33 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-10-23.
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 362 FT8 messages attributed to R4CHQ as the transmitting token by decoded message structure across 33 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (70%), followed by 80 m (22%) and 20 m (8%). Most decodes (73%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.
Overview
Bands
Last attributed message: 2026-10-23 03:53 UTC
Observed FT8 message patterns
- Attributed sample
- 362 messages
- Active dates
- 33 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -20 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 97, moderate (-15 to -9 dB) 130, strong (≥ -8 dB) 135.
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 R4CHQ 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.
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 | R4CHQ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 03:52 | 40m | -20 / - | IU8RFW | - / -19 | 2 | Partial capture |
| 10-23 03:48 | 40m | -20 / - | OZ1AKN | - / - | 3 | ✓ Closing fragment |
| 10-23 03:45 | 40m | -12 / - | SP7SZJ | - / -5 | 2 | ✓ Closing fragment |
| 10-23 03:43 | 40m | - / +1 | R6KY | -21 / - | 3 | Partial capture |
| 10-23 03:39 | 40m | -15 / - | RA9YTI | - / -10 | 2 | ✓ Closing fragment |
| 10-21 21:30 | 80m | - / -3 | DO8OS | +3 / - | 3 | ✓ Closing fragment |
| 10-21 21:26 | 80m | -2 / -16 | EA4DL | -17 / -25 | 3 | Partial capture |
| 10-21 21:23 | 80m | +2 / -1 | R7ZY | 0 / - | 3 | ✓ Closing observed |
| 10-21 21:10 | 80m | - / - | DK8HC | -6 / - | 3 | Partial capture |
| 10-21 21:09 | 80m | - / -4 | RA3WPF | -7 / - | 3 | ✓ Closing fragment |
| 10-21 21:05 | 80m | -14 / -14 | IU5VMC | -2 / -20 | 4 | ✓ Full exchange observed |
| 10-21 21:03 | 80m | - / - | DO8JB | -6 / - | 7 | Partial capture |
| 10-21 21:02 | 80m | -9 / - | OD5ZZ | - / -13 | 3 | ✓ Closing fragment |
| 10-10 04:06 | 80m | -8 / -12 | OR5T | +4 / -20 | 4 | ✓ Full exchange observed |
| 10-10 04:06 | 80m | - / -13 | IN3IBW | 0 / - | 2 | Partial capture |
| 10-09 03:30 | 80m | -5 / -8 | EC5M | -4 / -14 | 4 | ✓ Full exchange observed |
| 10-09 02:37 | 80m | -4 / - | R9WCK | - / -14 | 2 | ✓ Closing fragment |
| 10-09 02:21 | 80m | -6 / - | YO3AI | -6 / - | 3 | ✓ Closing observed |
| 10-09 02:19 | 80m | -4 / +3 | EW6CY | -8 / - | 3 | ✓ Closing observed |
| 10-09 02:17 | 80m | - / -3 | G1SUM | -6 / - | 2 | ✓ Closing fragment |
| 10-09 02:12 | 80m | - / - | DL9ATW | +10 / - | 3 | Partial capture |
| 10-09 02:11 | 80m | - / -16 | SP4BB | +2 / - | 2 | ✓ Closing fragment |
| 10-09 02:00 | 80m | -3 / -7 | SP7OK | +10 / -1 | 4 | ✓ Full exchange observed |
| 10-01 23:39 | 80m | - / - | F4FTV | +9 / - | 2 | Partial capture |
| 10-01 23:34 | 80m | -6 / -10 | BA4RF | -8 / -18 | 3 | ✓ Full exchange observed |
| 09-29 21:30 | 40m | -14 / - | YO2UKG | - / -11 | 2 | Partial capture |
| 09-29 04:11 | 40m | - / -16 | EA3EDU | -11 / - | 5 | ✓ Closing fragment |
| 09-29 03:07 | 40m | -9 / - | LZ3AI | - / -20 | 2 | ✓ Closing fragment |
| 09-29 03:02 | 40m | -13 / - | SP9WLC | - / -13 | 3 | Partial capture |
| 09-29 03:00 | 40m | -8 / - | R3RAQ | - / -19 | 2 | Partial capture |
| 09-29 02:57 | 40m | -12 / - | TN8GD | - / - | 2 | ✓ Closing fragment |
| 09-29 02:18 | 40m | -14 / - | F4CQS | - / -16 | 2 | Partial capture |
| 09-29 02:17 | 40m | -3 / - | ON8WR | - / -20 | 3 | ✓ Closing fragment |
| 09-29 02:14 | 40m | -14 / - | IW2ODG | - / -19 | 2 | Partial capture |
| 09-29 02:11 | 40m | -8 / - | UN0LK | - / -9 | 2 | ✓ Closing fragment |
| 09-29 02:10 | 40m | +1 / - | DL8OH | - / -15 | 2 | ✓ Closing fragment |
| 09-29 02:08 | 40m | -7 / - | SP3OZW | - / -16 | 2 | ✓ Closing fragment |
| 09-29 02:06 | 40m | -5 / - | HA5WA | - / -2 | 2 | ✓ Closing fragment |
| 09-29 02:04 | 40m | -9 / -14 | 4Z5PG | -10 / - | 3 | ✓ Closing observed |
| 09-29 01:36 | 40m | - / -12 | ON5LW | -9 / - | 3 | ✓ Closing fragment |
| 09-29 01:33 | 40m | -14 / - | LZ2PAJ | - / -8 | 2 | ✓ Closing fragment |
| 09-29 01:29 | 40m | -16 / +2 | SV1TNK | -5 / - | 6 | ✓ Closing observed |
| 09-26 02:17 | 80m | - / -4 | LZ1EV | -6 / - | 2 | ✓ Closing fragment |
| 09-26 01:23 | 80m | -10 / - | DO8JB | - / -15 | 2 | Partial capture |
| 09-26 01:18 | 80m | -13 / -20 | ON4MAP | -5 / -22 | 3 | ✓ Full exchange observed |
| 09-26 01:15 | 80m | -13 / - | GM6URC | -19 / -11 | 3 | ✓ Closing observed |
| 09-26 01:13 | 80m | -14 / +3 | IW3RUA | +4 / - | 3 | ✓ Closing observed |
| 09-26 01:08 | 80m | -23 / +1 | RW9QA | -8 / 0 | 3 | ✓ Full exchange observed |
| 09-15 21:58 | 80m | - / -12 | I1APQ | +2 / - | 4 | Partial capture |
| 09-15 21:58 | 80m | -10 / 0 | RX3DQL | -12 / - | 3 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 213030 -11 1093 YO2UKG R4CHQ -11 213415 -16 901 JA1XIA R4CHQ -16 005030 -8 1919 R4CHQ CT9/DF7EE R-15 033915 -17 1451 RA9YTI R4CHQ -10 (x2) 034300 -22 2025 R4CHQ R6KY R+01 (x3) 034545 -12 1341 SP7SZJ R4CHQ -05 (x2) 034830 -23 1678 OZ1AKN R4CHQ RR73 (x3) 035245 -18 1911 IU8RFW R4CHQ -19 (x2)
UTC dB Audio Message 211100 -2 565 R4CHQ DK8HC JO42 211545 -17 1842 OM1TD R4CHQ -15 211615 -15 1214 F1HFP R4CHQ -09 212330 -2 2605 R4CHQ R7ZY R-01 212345 +2 2605 R7ZY R4CHQ RR73 212400 +1 2605 R4CHQ R7ZY 73 212430 +4 1001 R4CHQ EU1EU R-10 212445 -12 1571 JJ6CRH R4CHQ -18 212615 -1 1723 EA4DL R4CHQ -25 (x2) 212800 -17 1723 R4CHQ EA4DL R-16 212930 -1 1700 IK2UVR R4CHQ RR73 213030 +3 764 R4CHQ DO8OS R-03 (x3)
UTC dB Audio Message 080315 -1 487 RI1FJL R4CHQ -12 (x2) 082245 -3 1512 BG0FQU R4CHQ -22 094530 -8 584 F4HTA R4CHQ -12 (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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