UA3YFS — 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: European Russia Most frequent locator attributed to this token: KO73

Receiver-side FT8 activity involving UA3YFS, decoded by SO8OO in southeastern Poland. 296 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 13 UTC dates in the available aggregate history. Observed between 2026-09-19 and 2026-11-03.

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 296 FT8 messages attributed to UA3YFS as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (67%), followed by 80 m (33%). Most decodes (89%) fell within the six-hour window 12:00-18:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12.5 dB.

Overview

296
Messages attributed
13
UTC dates decoded
33
Active 15-min windows
-12.5 dB
Estimated median S/N

Bands

80m · 98 40m · 198
First attributed message: 2026-09-19
Last attributed message: 2026-11-03 15:54 UTC

Observed FT8 message patterns

Attributed sample
296 messages
Active dates
13 UTC dates
Estimated median S/N
-12.5 dB
Estimated 10th-90th percentile
-21 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 111, moderate (-15 to -9 dB) 93, strong (≥ -8 dB) 92.

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 UA3YFS 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 UA3YFS

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
KO73 · 166 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
990 km (approx.)
Last such locator decoded
2026-11-03 15:53 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 UTCBandUA3YFS S/NCounterpartCounterpart S/NMsgsCapture
11-03 15:53 80m -8 / -8 RZ6HTP -1 / -4 5 ✓ Full exchange observed
11-03 15:46 80m -8 / - RL3QGD -23 / -10 3 ✓ Closing observed
10-28 14:44 80m -4 / - R3GO -3 / +8 6 ✓ Full exchange observed
10-28 14:44 80m -7 / +3 UA4FKT -8 / +1 5 ✓ Full exchange observed
10-22 14:02 80m -20 / - RM9WN - / -18 2 Partial capture
10-18 17:28 80m - / - 9A4ZM +10 / - 2 Partial capture
10-18 17:24 80m -13 / -18 RK6MC -11 / -15 6 ✓ Full exchange observed
10-18 17:23 80m -10 / -20 DO9BAU +5 / -16 38 ✓ Full exchange observed
10-18 17:23 80m -9 / -11 R3TY -8 / -24 5 ✓ Full exchange observed
10-18 17:21 80m - / - RV3X -5 / - 3 Partial capture
10-18 17:14 80m -16 / -6 R3SN -16 / -6 4 ✓ Full exchange observed
10-18 17:14 80m - / -14 OK1UOZ +8 / - 6 ✓ Closing fragment
10-18 17:14 80m - / - PA7ZZ -6 / - 2 Partial capture
10-18 17:12 80m -14 / - UA9FMT - / -12 3 ✓ Closing fragment
10-18 17:10 80m - / - RZ5D -24 / - 2 Partial capture
10-18 17:10 80m -16 / - UA3IDQ -4 / +2 7 ✓ Full exchange observed
10-18 17:06 80m - / -13 RM5F -3 / - 3 ✓ Closing fragment
10-18 17:04 80m - / -12 RU3OH -21 / - 3 ✓ Closing fragment
10-18 17:00 80m - / - DL1CC -1 / - 2 Partial capture
10-18 17:00 80m - / +4 OH5KNL +9 / - 4 ✓ Closing fragment
10-18 16:57 80m - / -11 UB4FGK -22 / - 2 ✓ Closing fragment
10-17 14:53 80m - / -7 UN2G -22 / - 2 Partial capture
10-17 14:50 80m -16 / -1 RO5A -10 / +1 5 ✓ Full exchange observed
10-17 14:46 80m -21 / -11 RY9C -10 / -1 3 ✓ Full exchange observed
10-17 14:43 80m -19 / -23 RQ4F -20 / - 3 ✓ Closing observed
10-17 14:34 80m -19 / -5 UA1CKA -2 / -10 3 ✓ Full exchange observed
10-17 14:24 80m -9 / +9 OI7AX 0 / -2 5 ✓ Full exchange observed
10-16 15:58 80m - / -7 RC6OG -1 / - 3 ✓ Closing fragment
10-16 15:57 80m - / -13 RQ6B -12 / - 3 ✓ Closing fragment
10-16 15:55 80m - / -7 EW6BZ +8 / - 2 ✓ Closing fragment
10-01 15:26 40m -4 / - R3DIH +2 / - 5 ✓ Full exchange observed
10-01 15:25 40m -8 / -6 RA6FSV -12 / -12 5 ✓ Full exchange observed
10-01 15:21 40m -11 / - R1TET -19 / -2 5 ✓ Full exchange observed
10-01 15:18 40m -4 / -8 R1QAV -15 / 0 4 ✓ Full exchange observed
10-01 15:16 40m -7 / - UN7GDB - / -17 2 ✓ Closing fragment
10-01 15:14 40m -7 / - R6ADH -16 / -13 3 ✓ Closing observed
10-01 15:08 40m -8 / - R4SCQ - / -8 2 ✓ Closing fragment
10-01 15:07 40m - / - PI4TX -14 / - 3 Partial capture
10-01 15:07 40m -8 / -6 R7OV -13 / -17 5 ✓ Full exchange observed
10-01 15:06 40m -8 / - UB4FGK - / -10 2 ✓ Closing fragment
10-01 15:02 40m -14 / - RM8CZ - / -8 2 ✓ Closing fragment
10-01 15:02 40m -7 / 0 DL8WEM +1 / -16 7 ✓ Full exchange observed
10-01 14:58 40m -12 / - R2AIV - / - 4 ✓ Closing fragment
09-29 06:47 40m -17 / - RM6OG - / -1 2 ✓ Closing fragment
09-29 06:46 40m - / -11 F1PBZ -14 / - 3 Partial capture
09-29 06:46 40m - / +4 GJ0KYZ -12 / - 3 Partial capture
09-29 06:45 40m - / - IU2THY -3 / - 3 Partial capture
09-27 13:36 40m -22 / -1 R7OF -15 / +5 3 ✓ Full exchange observed
09-27 13:34 40m -22 / - R1QF - / +1 3 ✓ Closing fragment
09-27 11:22 40m - / - SP3GHC -20 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
154445  -5 2182  CQ UA3YFS KO73 (x2)
154630 -23 1839  UA3YFS RL3QGD KO91
154645  -8 1839  RL3QGD UA3YFS -10 (x2)
154900  -5 1653  UA3YFS UB3YFP 73
155015 -10 1837  CQ UA3YFS KO73 (x4)
155300  -4 1927  RZ6HTP UA3YFS KO73
155315  +1  723  UA3YFS RZ6HTP -08
155330  -7 1927  RZ6HTP UA3YFS R-04
155345  -3  723  UA3YFS RZ6HTP RR73
155400 -13 1927  RZ6HTP UA3YFS 73
40m 
UTC    dB Audio  Message
152445  -5 2426  CQ UA3YFS KO73
152500 -11 1169  UA3YFS RA6FSV LN05
152515  -5 2426  RA6FSV UA3YFS -12
152530 -13 1169  UA3YFS RA6FSV R-06
152545 -10 2426  RA6FSV UA3YFS RR73
152600 -12 1169  UA3YFS RA6FSV 73
152600  +3 2425  UA3YFS R3DIH KO95
152615  -5 2426  R3DIH UA3YFS +13
152630  +1 2425  UA3YFS R3DIH R+28
152645  -3 2425  R3DIH UA3YFS RR73
152700  +3 2425  UA3YFS R3DIH 73
152715  -7 2425  CQ UA3YFS KO73 (x4)

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

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