YO8SDQ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Romania Most frequent locator attributed to this token: KN27

Receiver-side FT8 activity involving YO8SDQ, decoded by SO8OO in southeastern Poland. 60 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-07-15 and 2026-09-15.

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 60 FT8 messages attributed to YO8SDQ as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (73%), followed by 80 m (27%). Several six-hour UTC windows tied for the largest share (75%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (88%); the estimated median was +1 dB.

Overview

60
Messages attributed
4
UTC dates decoded
9
Active 15-min windows
+1 dB
Estimated median S/N

Bands

80m · 16 20m · 44
First attributed message: 2026-07-15
Last attributed message: 2026-09-15 23:26 UTC

Observed FT8 message patterns

Attributed sample
60 messages
Active dates
4 UTC dates
Estimated median S/N
+1 dB
Estimated 10th-90th percentile
-10 to +21 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 53.

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 YO8SDQ 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 YO8SDQ

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
KN27 · 27 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
359 km (approx.)
Last such locator decoded
2026-09-15 23:26 UTC

Other locator fields attributed to this token: KN16 (16).

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 UTCBandYO8SDQ S/NCounterpartCounterpart S/NMsgsCapture
09-15 23:24 80m +12 / - VP2MAA - / - 5 Partial capture
09-15 23:19 80m - / - OK7BB -11 / - 2 Partial capture
09-15 23:18 80m +9 / - VP2MAA - / - 7 Partial capture
09-04 22:24 80m - / - F5PBG -12 / - 2 Partial capture
09-04 22:24 80m - / - R6FX -16 / - 2 Partial capture
09-04 22:22 80m +11 / - 4O7CC - / -6 3 ✓ Closing fragment
07-26 10:11 10m - / -1 GJ0KYZ -16 / - 2 ✓ Closing fragment
07-25 17:48 20m - / -8 IU5HIU -1 / - 2 ✓ Closing fragment
07-25 17:45 20m - / -1 9A5E -1 / - 2 ✓ Closing fragment
07-17 19:37 20m +22 / - YS3/PY8WW - / +3 4 Partial capture
07-17 19:30 20m +19 / - <...> - / - 10 Partial capture
07-16 18:16 20m - / - IU5HIU -9 / - 2 Partial capture
07-16 18:02 20m - / -10 F5PBG -15 / - 3 Partial capture
07-16 18:00 20m - / -12 RC6OU -7 / - 2 ✓ Closing fragment
07-16 17:58 20m - / -7 R4FDK -12 / - 3 ✓ Closing fragment
07-16 17:46 20m - / -15 F5NNN -12 / - 3 Partial capture
07-16 17:41 20m - / - DL1UDO -10 / - 3 Partial capture
07-16 17:38 20m - / -8 RN6MA +6 / - 2 ✓ Closing fragment
07-15 18:51 20m - / - RC5F -17 / - 2 Partial capture
07-15 18:51 20m - / -1 EA2BHE -9 / - 3 ✓ Closing fragment
07-15 18:33 20m - / -7 EI7LK -12 / - 3 ✓ Closing fragment
07-15 17:46 20m - / -5 HA7NB -6 / - 3 Partial capture
07-15 17:43 20m -4 / - MW9MCO - / -22 2 Partial capture
07-15 17:17 20m -4 / - M7CWF - / - 2 Partial capture
07-15 17:14 20m -10 / - SP6FME - / -1 2 Partial capture
07-15 17:12 20m -4 / -4 TM25TFR -10 / -9 3 Partial capture
07-15 17:09 20m -6 / - PD0HI - / - 2 Partial capture
07-15 16:59 20m -3 / - DG2XB - / -11 3 Partial capture
07-15 16:54 20m -3 / - UN7AB - / - 2 ✓ Closing fragment
07-15 16:53 20m -4 / - PD2BS - / - 2 Partial capture
07-15 16:51 20m -3 / - PE1NPS - / -20 4 Partial capture
07-15 16:49 20m -12 / - DG2XB - / -17 2 Partial capture
07-15 14:57 20m - / -13 F5IXN -14 / - 5 ✓ Closing fragment
07-15 14:54 20m - / +9 DG2XB -16 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
222500 -12 1995  YO8SDQ F5PBG IN78
231830 +10 1904  VP2MAA YO8SDQ KN27 (x3)
231945  -9 1904  YO8SDQ OK7BB JN79
232000  +9 1904  VP2MAA YO8SDQ KN27
232015 -13 1904  YO8SDQ OK7BB JN79
232030  +8 1904  VP2MAA YO8SDQ KN27 (x8)
10m 
UTC    dB Audio  Message
173645  -4 2768  YO8SDQ PD9FLX JO22
101115 -15 1406  YO8SDQ GJ0KYZ -01 (x2)
20m 
UTC    dB Audio  Message
193745 +21 2911  YS3/PY8WW YO8SDQ KN27 (x3)
193900  -9 2549  YO8SDQ RR73; IU8RQW <...> -12
190900  +5 2777  YO8SDQ SV9/DH8BQA -08
190930  +4 2777  YO8SDQ RR73; UA0CW <...> +02 (x2)
191300  -6 2927  YO8SDQ JA0LFV -09
174315  -8 2573  YO8SDQ EX8BT -11
174545  -2 2207  YO8SDQ 9A5E -01 (x2)
174815  -2 2905  YO8SDQ IU5HIU R-08 (x2)
181330 -11 1686  YO8SDQ IS0KNG RR73
183445 -10 2034  YO8SDQ R4FDW 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.

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