UI7N — 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: KN98

Receiver-side FT8 activity involving UI7N, decoded by SO8OO in southeastern Poland. 758 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 30 UTC dates in the available aggregate history. Observed between 2026-07-18 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 758 FT8 messages attributed to UI7N as the transmitting token by decoded message structure across 30 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (52%), followed by 20 m (38%) and 80 m (6%). Most decodes (61%) fell within the six-hour window 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -6.1 dB.

Overview

758
Messages attributed
30
UTC dates decoded
99
Active 15-min windows
-6.1 dB
Estimated median S/N

Bands

First attributed message: 2026-07-18
Last attributed message: 2026-11-03 22:00 UTC

Observed FT8 message patterns

Attributed sample
758 messages
Active dates
30 UTC dates
Estimated median S/N
-6.1 dB
Estimated 10th-90th percentile
-17 to +5.8 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 123, moderate (-15 to -9 dB) 186, strong (≥ -8 dB) 449.

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.

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 UI7N

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
KN98 · 306 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,257 km (approx.)
Last such locator decoded
2026-11-03 21:58 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 UTCBandUI7N S/NCounterpartCounterpart S/NMsgsCapture
11-03 22:12 40m - / - 2E0ROJ -6 / - 7 Partial capture
11-03 22:07 40m - / - UA4FKT +6 / - 2 Partial capture
11-03 21:59 40m -9 / -13 F8MRQ -4 / -16 5 ✓ Full exchange observed
11-03 21:57 40m -8 / 0 I1RJP 0 / -11 3 ✓ Full exchange observed
11-03 21:55 40m -14 / - SQ2BXI - / -9 2 ✓ Closing fragment
11-03 21:52 40m -14 / - R5AT - / -12 2 ✓ Closing fragment
11-03 21:51 40m - / - F8MRQ 0 / - 2 Partial capture
11-03 21:49 40m -12 / - SP6AXW - / -13 2 ✓ Closing fragment
11-03 21:48 40m -8 / - TA2ED -9 / -16 2 ✓ Closing observed
11-03 21:42 40m - / - F6BHK +5 / - 3 Partial capture
11-03 21:36 40m -9 / -10 CT2GFJ -12 / -8 5 ✓ Full exchange observed
11-03 21:35 40m -6 / - OE3RWR - / -9 2 ✓ Closing fragment
11-03 21:33 40m - / - F8MRQ +3 / - 3 Partial capture
11-03 21:32 40m -10 / +4 TC8TR -10 / - 3 ✓ Closing observed
11-03 21:27 40m - / - IK4TVP -12 / - 5 ✓ Closing fragment
11-03 21:23 40m -11 / - AP5ARS -12 / -8 5 ✓ Closing observed
10-20 23:03 40m +4 / - K2BLA - / - 3 Partial capture
10-20 23:01 40m +8 / +3 LZ1DPP -4 / +1 4 ✓ Full exchange observed
10-20 23:00 40m +2 / - YU4FQN - / -4 2 ✓ Closing fragment
10-20 22:59 40m +2 / - M9DNC -14 / -15 3 ✓ Closing observed
10-20 22:56 40m -1 / - A61DD - / -14 5 ✓ Closing fragment
10-20 22:54 40m -5 / - IZ8PPI - / -13 2 ✓ Closing fragment
10-20 22:53 40m +2 / - 7Z1AL - / -17 3 ✓ Closing fragment
10-20 22:52 40m -2 / - A71AH -24 / -16 3 ✓ Closing observed
10-20 22:48 40m -2 / - VU2RPS - / - 4 Partial capture
10-20 22:46 40m -4 / - EB3WH - / -11 2 ✓ Closing fragment
10-20 22:45 40m -4 / - 9A3AUH - / -11 2 ✓ Closing fragment
10-20 22:43 40m +6 / - TN8GD - / -22 2 ✓ Closing fragment
10-20 22:41 40m +9 / - K1GG - / - 2 Partial capture
10-16 19:01 40m - / - PD1HBL -3 / - 5 Partial capture
10-16 18:59 40m -2 / - EA5TT -12 / -16 3 ✓ Closing observed
10-16 18:57 40m +6 / - TA2EE - / -13 2 ✓ Closing fragment
10-16 18:55 40m - / - DJ0MAB +12 / - 2 Partial capture
10-16 18:55 40m +2 / -3 HB9ELE +11 / -6 5 ✓ Full exchange observed
10-16 18:55 40m +4 / - PF1B -8 / -15 6 ✓ Closing observed
10-16 18:53 40m +6 / - U1BD - / -7 2 ✓ Closing fragment
10-16 18:52 40m +6 / +1 R6FFB +7 / -2 5 ✓ Full exchange observed
10-16 18:51 40m +5 / - EY7BM - / -12 3 ✓ Closing fragment
10-15 17:45 40m - / - RZ4FWA -22 / - 2 Partial capture
10-15 17:43 40m +2 / - R6ZEJ - / -6 2 ✓ Closing fragment
10-15 17:42 40m - / - RD3FY +2 / - 4 Partial capture
10-15 17:42 40m 0 / -7 R2RCQ -8 / -1 4 ✓ Full exchange observed
10-15 17:40 40m +1 / - R3LDK -12 / -2 4 ✓ Full exchange observed
10-15 17:39 40m +3 / - UB3FBD - / -12 2 ✓ Closing fragment
10-15 17:37 40m 0 / - RA6FC - / -19 2 Partial capture
10-15 17:36 40m +1 / - RC5F -7 / - 2 ✓ Closing observed
10-15 17:34 40m +1 / - RA3X - / -12 2 Partial capture
10-15 17:32 40m 0 / - R4HMI - / -4 3 Partial capture
10-15 17:32 40m - / - R6OD -9 / - 10 Partial capture
10-15 17:28 40m -6 / -22 UA3QNA +3 / -14 7 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
220030  -6  548  UI7N F8MRQ R-13
220045 -13  548  JA2KGH UI7N -16
220100  -6  548  UI7N F8MRQ R-13 (x2)
220530  -6  549  UI7N 2E0ROJ IO92
220730  +5  549  UI7N UA4FKT LO23 (x2)
221130  -2  742  UI7N 3A2LF R+05
221230  -9  549  UI7N 2E0ROJ IO92 (x7)
80m
UTC    dB Audio  Message
171915  +8  812  UI7N RK4FD LO22 (x3)
172115  -8 1707  UI7N RA3QQI KO90 (x2)
172145  +4 1148  UI7N DK7ZT -14
172215 -21 1006  UI7N UA4CKN -22
172215 -12 1707  UI7N RA3QQI 73
172215  +1  625  UI7N R2HD -12
172215  +9 1149  UI7N DK7ZT -14
172245 -15 1006  UI7N UA4CKN RR73
172245  +9 1149  UI7N DK7ZT -14 (x3)
220800  +3 1882  UI7N IK4TVP +07
20m
UTC    dB Audio  Message
204430  +3  653  UI7N AA3B -01 (x2)
205200 -24 1963  UI7N KS0CW -05 (x2)
205300  +0 2738  UI7N DK7ZT +11 (x2)
205945  -1 1167  UI7N S52D R-03 (x2)
210015  +4 1038  UI7N EB3JT JN01 (x3)
201645  -2  755  UI7N K1WY -16 (x2)
203530  -4  591  KC3WRH UI7N KN98 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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