OZ1A — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Denmark Most frequent locator attributed to this token: JO65

Receiver-side FT8 activity involving OZ1A, decoded by SO8OO in southeastern Poland. 955 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-09-12 and 2026-09-19.

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 955 FT8 messages attributed to OZ1A as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (79%), followed by 40 m (21%). Most decodes (98%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (87%); the estimated median was -3 dB.

Overview

955
Messages attributed
5
UTC dates decoded
46
Active 15-min windows
-3 dB
Estimated median S/N

Bands

80m · 752 40m · 203
First attributed message: 2026-09-12
Last attributed message: 2026-09-19 22:04 UTC

Observed FT8 message patterns

Attributed sample
955 messages
Active dates
5 UTC dates
Estimated median S/N
-3 dB
Estimated 10th-90th percentile
-9 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 107, strong (≥ -8 dB) 835.

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 OZ1A 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 OZ1A

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
JO65 · 480 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
855 km (approx.)
Last such locator decoded
2026-09-19 22:03 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 UTCBandOZ1A S/NCounterpartCounterpart S/NMsgsCapture
09-19 22:04 80m +6 / -11 IU2WCY -15 / -23 5 ✓ Full exchange observed
09-19 22:00 80m -2 / - EA3DNC - / -10 3 ✓ Closing fragment
09-19 21:58 80m +4 / +3 DL2AOM -12 / -22 5 ✓ Full exchange observed
09-19 21:57 80m +3 / -16 RA3RDN +18 / -1 5 ✓ Full exchange observed
09-19 21:55 80m +1 / -15 F1SAA -12 / -19 3 Partial capture
09-19 21:50 80m +1 / -15 UA9SY -15 / -25 15 ✓ Full exchange observed
09-19 21:48 80m 0 / +5 UT5ECZ +20 / -5 4 ✓ Full exchange observed
09-18 21:12 80m -8 / - SN40KZE - / -13 3 Partial capture
09-18 21:10 80m -3 / -10 DL9KM -8 / -9 10 Partial capture
09-18 21:07 80m -6 / - OZ6C - / +9 2 ✓ Closing fragment
09-18 21:05 80m -4 / -13 UR4LG +2 / -21 5 ✓ Full exchange observed
09-18 21:04 80m - / - UB3ADO/P -4 / - 2 ✓ Closing fragment
09-18 21:00 80m -7 / - DO9POL -15 / -23 10 ✓ Closing observed
09-18 20:57 80m -7 / 0 OZ7CL -3 / +7 5 ✓ Full exchange observed
09-18 20:46 80m -5 / -12 EU1AFX -6 / -21 5 ✓ Full exchange observed
09-18 20:41 80m -10 / -20 R7CD +6 / -10 5 ✓ Full exchange observed
09-18 20:36 80m -2 / - MW7GQB - / -5 2 ✓ Closing fragment
09-18 20:25 80m -2 / -9 DL5AX -6 / +1 5 ✓ Full exchange observed
09-18 20:20 80m -4 / -6 DO5WG -5 / -10 4 ✓ Full exchange observed
09-18 20:17 80m 0 / - DO5OT +15 / - 5 ✓ Full exchange observed
09-18 20:07 80m -7 / +6 DL9DAJ -7 / -18 5 ✓ Full exchange observed
09-18 19:59 80m -1 / - DO5AX - / -21 3 ✓ Closing fragment
09-18 19:44 80m -2 / -13 DM1HR -10 / -10 7 ✓ Full exchange observed
09-18 19:34 80m -2 / -18 DL1KYF/P -15 / -17 4 ✓ Full exchange observed
09-18 19:32 80m +5 / -15 PA0GSP -4 / -16 4 ✓ Full exchange observed
09-18 19:28 80m -2 / -17 M0KHR -18 / -10 5 ✓ Full exchange observed
09-18 19:27 80m +5 / 0 SQ6WA +10 / +4 5 ✓ Full exchange observed
09-18 19:23 80m +2 / -5 DO9MH 0 / - 6 ✓ Full exchange observed
09-18 19:22 80m +6 / +9 OZ1PFH +4 / +9 5 ✓ Full exchange observed
09-18 19:20 80m +2 / +2 YL2IV +8 / - 5 ✓ Full exchange observed
09-18 19:19 80m +2 / -13 RY3F +2 / -9 3 ✓ Full exchange observed
09-18 19:17 80m -6 / -7 RK9UE -12 / -13 5 ✓ Full exchange observed
09-18 19:16 80m 0 / -6 DA6DE -16 / -6 4 ✓ Full exchange observed
09-18 19:04 80m -2 / -20 RV3X +8 / -5 5 ✓ Full exchange observed
09-18 18:59 80m -4 / -9 ON3MOH -16 / -13 4 ✓ Full exchange observed
09-18 18:58 80m -8 / - SQ1EIC +4 / -3 3 ✓ Closing observed
09-18 18:53 80m -9 / -23 SV1DKR -6 / -12 12 ✓ Full exchange observed
09-18 18:52 80m 0 / +2 OZ2LC -6 / +8 4 ✓ Full exchange observed
09-18 18:51 40m - / -13 R4FV 0 / - 2 Partial capture
09-18 18:48 40m -11 / - UA1ALY - / - 3 ✓ Closing fragment
09-18 18:46 40m -5 / -8 YO6LM +4 / -4 5 ✓ Full exchange observed
09-18 18:46 40m -9 / - SQ9CXH - / -2 2 ✓ Closing fragment
09-18 18:41 40m -6 / - UA1ALY -19 / -5 10 ✓ Closing observed
09-18 18:40 40m -4 / -8 DB1IUA -4 / -4 4 ✓ Full exchange observed
09-18 18:37 40m -6 / - OE7LVI 0 / -5 3 ✓ Closing observed
09-18 18:35 40m -9 / -20 JA4FKX -8 / -3 3 Partial capture
09-18 18:35 40m -6 / - PA1PJ - / -1 2 ✓ Closing fragment
09-18 18:33 40m -1 / -8 DG3BD -9 / -12 3 ✓ Full exchange observed
09-18 18:32 40m -3 / - SH0T - / +2 2 ✓ Closing fragment
09-18 18:29 40m -8 / - RU3SN - / -9 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
215930  -9 2539  OZ1A DL2AOM 73
215945  +1 2535  CQ OZ1A JO65
220015  +1 2535  EA3DNC OZ1A -10 (x3)
220145  -1 2535  CQ OZ1A JO65 (x5)
220400 -15 2645  OZ1A IU2WCY JN45
220415  +4 2535  IU2WCY OZ1A -23
220430 -15 2645  OZ1A IU2WCY R-11
220445  +8 2535  IU2WCY OZ1A RR73
220500 -14 2644  OZ1A IU2WCY 73
40m 
UTC    dB Audio  Message
184530  -7 2355  UA1ALY OZ1A RR73
184600  -8 2355  SQ9CXH OZ1A -02 (x2)
184645  +1 1950  OZ1A YO6LM KN25
184700  -8 2355  YO6LM OZ1A -04
184715  +5 1950  OZ1A YO6LM R-08
184730  -2 2355  YO6LM OZ1A RR73
184745  +6 1950  OZ1A YO6LM 73
184800 -12 2355  UA1ALY OZ1A RR73 (x3)
185000  -8 2355  CQ OZ1A JO65 (x2)
185145  -1 1168  OZ1A R4FV -13 (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.

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