YO3FRI — 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: Romania Most frequent locator attributed to this token: KN34

Receiver-side FT8 activity involving YO3FRI, decoded by SO8OO in southeastern Poland. 2,933 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 51 UTC dates in the available aggregate history. Observed between 2026-06-09 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 2,933 FT8 messages attributed to YO3FRI as the transmitting token by decoded message structure across 51 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (58%), followed by 40 m (22%) and 20 m (14%). Most decodes (82%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (87%); the estimated median was +2 dB.

Overview

2,933
Messages attributed
51
UTC dates decoded
252
Active 15-min windows
+2 dB
Estimated median S/N

Bands

80m · 1,687 40m · 649 20m · 412 10m · 185
First attributed message: 2026-06-09
Last attributed message: 2026-10-23 20:31 UTC

Observed FT8 message patterns

Attributed sample
2,933 messages
Active dates
51 UTC dates
Estimated median S/N
+2 dB
Estimated 10th-90th percentile
-9 to +11 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 69, moderate (-15 to -9 dB) 301, strong (≥ -8 dB) 2,563.

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 YO3FRI 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 YO3FRI

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
KN34 · 1,897 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
721 km (approx.)
Last such locator decoded
2026-10-23 19:43 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 UTCBandYO3FRI S/NCounterpartCounterpart S/NMsgsCapture
10-23 20:17 80m +1 / - YO5USA - / - 26 Partial capture
10-23 20:09 80m -2 / - YO5USA - / - 6 Partial capture
10-23 20:03 80m -4 / - YO5USA - / - 4 Partial capture
10-23 19:44 80m +2 / -15 YO5USA -9 / +6 39 ✓ Full exchange observed
10-23 19:37 80m 0 / - R6FFE - / -17 2 ✓ Closing fragment
10-23 19:29 80m +2 / - UA1ACO -1 / -4 2 Partial capture
10-23 19:24 80m -2 / 0 DG2EBG -7 / -8 13 ✓ Full exchange observed
10-23 19:21 80m -16 / - R6FFE - / -18 2 Partial capture
10-23 19:13 80m +6 / - F1GTU - / -11 2 ✓ Closing fragment
10-23 19:10 80m 0 / - DO9FR - / -8 2 ✓ Closing fragment
10-23 19:08 80m -4 / -1 HA9MDP +8 / +4 5 ✓ Full exchange observed
10-23 19:01 80m +4 / - R2SN -3 / +5 3 ✓ Closing observed
10-23 19:00 80m +2 / -3 OT8P -8 / -9 5 ✓ Full exchange observed
10-23 18:56 80m +4 / - SQ1RTU -2 / -3 3 ✓ Closing observed
10-23 18:49 80m +1 / - PA7PYR -13 / - 2 ✓ Closing observed
10-23 18:43 80m 0 / -4 IZ3QEU +6 / +9 7 ✓ Full exchange observed
10-23 18:39 80m +2 / -9 DO7DE -1 / -5 5 ✓ Full exchange observed
10-23 18:37 80m +3 / +1 UR5BIO +2 / +8 4 ✓ Full exchange observed
10-23 18:35 80m +4 / - R4PEQ -18 / -12 3 ✓ Closing observed
10-23 18:28 80m +4 / -17 OH4KRN -17 / -16 5 ✓ Full exchange observed
10-23 18:26 80m 0 / - UR4UY -24 / -4 2 ✓ Closing observed
10-23 18:18 80m +2 / -11 RU9AD -12 / -8 4 ✓ Full exchange observed
10-23 15:41 10m - / +4 EA1AJT +1 / - 3 ✓ Closing fragment
10-23 15:11 10m - / - EA7Y -17 / - 3 ✓ Closing fragment
10-21 19:42 80m +11 / - RA6ZC -9 / 0 3 ✓ Closing observed
10-21 19:37 80m +8 / -9 F1IQH -9 / -25 7 ✓ Full exchange observed
10-21 19:36 80m 0 / - DA6DNA - / -14 2 Partial capture
10-21 19:34 80m +2 / - OD5ZZ - / -5 2 ✓ Closing fragment
10-21 19:30 80m +5 / -8 DO9DML -8 / -21 6 ✓ Full exchange observed
10-21 19:27 80m +2 / -4 IU3VSZ -2 / -3 6 ✓ Full exchange observed
10-21 19:24 80m +5 / -12 IK1MJK +5 / 0 5 ✓ Full exchange observed
10-21 19:22 80m +2 / -9 SQ2BXI -7 / -8 5 ✓ Full exchange observed
10-21 19:19 80m +4 / - UW2ZO +6 / - 2 Partial capture
10-21 19:16 80m +8 / - RC9WC - / 0 2 ✓ Closing fragment
10-21 19:14 80m +15 / +5 R5DK +6 / - 4 ✓ Full exchange observed
10-21 19:14 80m +2 / +8 R6LNH -2 / +4 4 ✓ Full exchange observed
10-21 19:09 80m +10 / +5 R2FEA +6 / +7 3 ✓ Full exchange observed
10-21 19:07 80m +8 / - YO8BDQ +8 / - 5 ✓ Full exchange observed
10-20 23:55 80m +2 / -7 RW9ULK -4 / -5 5 ✓ Full exchange observed
10-20 23:50 80m +6 / 0 G6BCC 0 / -5 4 ✓ Full exchange observed
10-20 23:48 80m +6 / - LZ1GC +9 / - 5 ✓ Full exchange observed
10-20 23:44 80m - / - G3TKT -16 / - 3 Partial capture
10-20 23:39 80m +11 / - UA0SCF -17 / - 2 ✓ Closing observed
10-20 23:37 80m +5 / -16 RK0SC -14 / -16 3 Partial capture
10-20 23:35 80m +10 / - 9A2G +17 / - 4 ✓ Full exchange observed
10-20 23:33 80m +11 / +3 ON4MAP -5 / - 4 ✓ Closing observed
10-20 23:08 40m - / - YB5QZ -7 / - 2 Partial capture
10-20 22:23 40m - / -3 M9XPN -10 / - 6 ✓ Closing fragment
10-20 22:04 40m - / - PD9JPV -18 / - 2 Partial capture
10-18 10:48 10m - / - EA7DL -10 / - 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
202330  +2 1846  YO5USA YO3FRI R+11 (x15)
10m 
UTC    dB Audio  Message
093715 -19 2042  YO3FRI PD2FS -11
124415  +2 2671  YO3FRI UA6ADA KN95 (x2)
110815 -24 1881  YO3FRI CS7BDU 73
100715 -11 1559  YO3FRI CS7BPG IN51 (x3)
104815  -9 2653  YO3FRI EA7DL IM87 (x2)
151145 -18 2339  YO3FRI EA7Y IM66 (x3)
154115  +4 2493  YO3FRI EA1AJT IN72 (x3)
40m 
UTC    dB Audio  Message
212015  -3 1357  YO3FRI G1USB R-07 (x2)
214645 -22 1278  YO3FRI R3KSJ -22 (x3)
220415 -19 1835  YO3FRI PD9JPV JO22 (x2)
222315 -10 1837  YO3FRI M9XPN IO91 (x6)
230845  -7 1051  YO3FRI YB5QZ OJ00 (x2)
20m 
UTC    dB Audio  Message
142145  +2 2808  YO3FRI DJ7XY JO31 (x3)
150145  -5 2777  YO3FRI JA7IC -13 (x4)
182445 +10  805  YO3FRI PD0TH JO22 (x2)
183215  -6 2712  YO3FRI F4NJU JN29
183315 -18  610  YO3FRI 2E0UMF -23 (x2)
184015  -3 3003  YO3FRI 2E0XPQ IO83 (x3)

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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