C37AC — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Andorra Most frequent locator attributed to this token: JN02

Receiver-side FT8 activity involving C37AC, decoded by SO8OO in southeastern Poland. 236 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 5 UTC dates in the available aggregate history. Observed between 2026-09-21 and 2026-09-30.

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 236 FT8 messages attributed to C37AC as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (64%), followed by 80 m (36%). Several six-hour UTC windows tied for the largest share (99%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

236
Messages attributed
5
UTC dates decoded
24
Active 15-min windows
-13 dB
Estimated median S/N

Bands

160m · 152 80m · 84
First attributed message: 2026-09-21
Last attributed message: 2026-09-30 20:35 UTC

Observed FT8 message patterns

Attributed sample
236 messages
Active dates
5 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-20 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 82, moderate (-15 to -9 dB) 107, strong (≥ -8 dB) 47.

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 C37AC 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 C37AC

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
JN02 · 25 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,792 km (approx.)
Last such locator decoded
2026-09-30 20:22 UTC

Other locator fields attributed to this token: LO53 (3).

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 UTCBandC37AC S/NCounterpartCounterpart S/NMsgsCapture
09-30 20:43 80m - / -19 SN100PKP +4 / - 2 Partial capture
09-30 20:40 80m - / - YO2MNZ +6 / - 5 Partial capture
09-30 20:39 80m - / -14 F1PBZ -3 / - 3 ✓ Closing fragment
09-30 20:37 80m - / - SP5ALV +13 / - 3 Partial capture
09-30 20:34 80m -14 / - 9A7KWS +2 / -13 4 ✓ Closing observed
09-30 20:32 80m - / - SP5ALV +15 / - 4 Partial capture
09-30 20:29 80m -15 / -4 IQ4JO +5 / -3 6 ✓ Full exchange observed
09-30 20:26 160m - / - UA6AUA -13 / - 2 Partial capture
09-30 20:25 160m -14 / -3 ON7DR -15 / - 5 ✓ Closing observed
09-30 20:23 160m - / - UA6AUA -14 / - 2 Partial capture
09-30 20:22 160m -9 / - SV2JU -2 / -6 5 Partial capture
09-30 20:22 160m -11 / -12 SO1CJ +12 / -19 11 Partial capture
09-30 20:21 160m - / - EW6CB -4 / - 2 Partial capture
09-30 20:19 160m - / - UA1A -2 / - 3 Partial capture
09-30 20:19 160m - / - DL1SVI -1 / - 7 Partial capture
09-30 20:18 160m -18 / -13 OH1NDA -5 / -11 6 ✓ Full exchange observed
09-30 20:16 160m -23 / -15 RU3FM -3 / - 9 ✓ Closing observed
09-30 20:15 160m -16 / -14 IU1VJP -24 / -14 4 ✓ Full exchange observed
09-30 20:15 160m - / - JA3FYC -10 / - 2 Partial capture
09-30 20:13 160m - / - DG0OAT -10 / - 2 Partial capture
09-30 20:13 160m - / - UA4FET -10 / - 2 Partial capture
09-30 20:12 160m -10 / +6 DK2DB -17 / -6 5 ✓ Full exchange observed
09-30 20:12 160m - / - R5BM -20 / - 4 Partial capture
09-30 20:10 160m - / - UA1A -12 / - 5 Partial capture
09-30 20:10 160m -12 / -13 F4FFZ -16 / -11 4 ✓ Full exchange observed
09-30 20:09 160m - / - EW6CB 0 / - 3 Partial capture
09-30 20:09 160m -20 / - EA1R - / -8 2 ✓ Closing fragment
09-30 20:09 160m - / - DL5EBS -5 / - 6 Partial capture
09-30 20:09 160m -16 / -8 SP3IBS +12 / -15 9 ✓ Full exchange observed
09-30 20:08 160m -6 / -13 SP5GW +4 / -16 17 ✓ Full exchange observed
09-30 20:08 160m - / - TM47CDXC -18 / - 16 Partial capture
09-30 20:08 160m -21 / +6 DF5AH -14 / -14 5 ✓ Full exchange observed
09-30 20:08 160m - / - OH1LA -23 / - 2 Partial capture
09-30 20:08 160m - / - RU3FM -8 / - 8 Partial capture
09-30 18:32 160m - / - SP5GW +1 / - 2 Partial capture
09-30 18:31 160m -24 / -5 G4EZT -3 / - 4 ✓ Closing observed
09-30 18:31 160m - / - RU3XK -6 / - 5 Partial capture
09-30 18:30 160m -21 / -17 DJ7M +9 / -4 5 ✓ Full exchange observed
09-30 18:30 160m - / - SP4LVG +10 / - 4 Partial capture
09-30 18:28 160m -23 / - OD5XX -20 / - 3 ✓ Closing observed
09-30 18:27 160m - / -10 E77AR +5 / - 4 ✓ Closing fragment
09-30 18:26 160m - / -18 ES2AJ +1 / - 4 Partial capture
09-30 18:26 160m -24 / +1 G7RAU -24 / -7 6 ✓ Full exchange observed
09-30 18:26 160m - / - LA9JKA -20 / - 6 Partial capture
09-30 18:25 160m - / - EW6CB -4 / - 4 Partial capture
09-30 18:25 160m - / -19 UA1AEL -12 / - 4 Partial capture
09-30 18:24 160m -21 / -1 DJ8ES +1 / - 6 ✓ Closing observed
09-30 18:24 160m -16 / +3 IU1CIW -8 / - 4 ✓ Closing observed
09-30 18:24 160m - / - SP3FHV +12 / - 14 Partial capture
09-30 18:24 160m - / - SP5GW +7 / - 12 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

80m 
UTC    dB Audio  Message
203515 -11 2119  9A7KWS C37AC RR73
203700  +8 2120  C37AC DO9SAM 73
203730 +13 1960  C37AC SP5ALV KO02 (x2)
203930  -2  405  C37AC F1PBZ -14
204000  +5 2760  C37AC YO2MNZ KN15
204000 +10 1959  C37AC SP5ALV KO02
204000  -5  405  C37AC F1PBZ -14 (x2)
204100  +6 2760  C37AC YO2MNZ KN15 (x4)
204330  +4 1873  C37AC SN100PKP -19 (x2)
160m 
UTC    dB Audio  Message
202515 -17 1676  C37AC ON7DR JO11
202530 -10 1930  SO1CJ C37AC -19
202545 -13 1676  C37AC ON7DR JO11
202615 +14 2861  C37AC SO1CJ R-09
202615 -18 1676  C37AC ON7DR R-03
202630 -14 1930  ON7DR C37AC RR73
202645  -2 2950  C37AC UA6AUA KN94
202645 +19 2861  C37AC SO1CJ R-09
202645 -13 1676  C37AC ON7DR 73
202715 +18 2861  C37AC SO1CJ JN99
202715 -13 1545  C37AC RV6FN LN05
202745 +18 2861  C37AC SO1CJ JN99 (x2)
202845 -24 1930  C37AC UA6AUA KN94
203045 -16 2273  C37AC OK1WLM JN69

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 SO8OO

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee