F4GUK — 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: France Most frequent locator attributed to this token: JN18

Receiver-side FT8 activity involving F4GUK, decoded by SO8OO in southeastern Poland. 2,454 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 63 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-10-22.

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 2,454 FT8 messages attributed to F4GUK as the transmitting token by decoded message structure across 63 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (49%), followed by 80 m (30%) and 10 m (9%). Most decodes (69%) fell within the six-hour window 04:00-10:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9.7 dB.

Overview

2,454
Messages attributed
63
UTC dates decoded
331
Active 15-min windows
-9.7 dB
Estimated median S/N

Bands

160m · 22 80m · 747 60m · 216 40m · 1,212 20m · 40 10m · 217
First attributed message: 2026-06-09
Last attributed message: 2026-10-22 16:01 UTC

Observed FT8 message patterns

Attributed sample
2,454 messages
Active dates
63 UTC dates
Estimated median S/N
-9.7 dB
Estimated 10th-90th percentile
-18 to -2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 402, moderate (-15 to -9 dB) 996, strong (≥ -8 dB) 1,056.

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 F4GUK 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 F4GUK

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
JN18 · 1,440 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,370 km (approx.)
Last such locator decoded
2026-10-22 15:59 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 UTCBandF4GUK S/NCounterpartCounterpart S/NMsgsCapture
10-22 16:01 40m 0 / - PE1BOL - / -22 2 ✓ Closing fragment
10-22 15:59 40m 0 / - DG1LJP -10 / +3 5 ✓ Closing observed
10-22 15:35 40m -1 / - IW1BYR - / - 3 Partial capture
10-22 15:30 40m -2 / - G0XWD - / - 2 Partial capture
10-22 15:28 40m -1 / - ON3URT - / +2 3 ✓ Closing fragment
10-22 15:24 40m -3 / - PA0WDN - / - 6 Partial capture
10-22 15:22 40m -2 / - EB3DIM - / - 2 Partial capture
10-22 15:20 40m -4 / - M7FSE - / - 2 Partial capture
10-22 15:18 40m -2 / +10 DK2AM -8 / +3 5 ✓ Full exchange observed
10-22 15:08 40m -8 / - OH3BYZ - / - 4 Partial capture
10-22 14:48 40m 0 / - UA3WDO - / - 3 Partial capture
10-22 14:46 40m 0 / - HB9ITZ/P - / - 2 Partial capture
10-22 14:44 40m -9 / - M0OXO -13 / - 4 ✓ Closing observed
10-22 14:41 40m -8 / -12 E77D +14 / -7 5 ✓ Full exchange observed
10-22 14:38 40m -11 / -6 OK2CNI +4 / -7 5 ✓ Full exchange observed
10-22 14:27 40m -17 / -2 PA3AGN -8 / - 3 ✓ Closing observed
10-22 14:26 40m -16 / - ON4MHZ - / -2 3 ✓ Closing fragment
10-22 14:24 40m -18 / - ON4UR - / - 3 Partial capture
10-22 14:20 40m -16 / - MM0HSF - / -11 3 ✓ Closing fragment
10-22 13:53 40m -20 / - G0FHT - / - 6 ✓ Closing fragment
10-22 13:43 40m -6 / - IK6VXO - / - 4 Partial capture
10-22 13:34 40m -7 / - M0OXO - / - 7 Partial capture
10-22 13:29 40m -7 / - OZ1LNR - / -10 5 ✓ Closing fragment
10-22 13:20 40m -8 / -12 SP6AMI +4 / -9 4 ✓ Full exchange observed
10-22 13:15 40m -8 / - M0OXO - / - 3 Partial capture
10-22 13:05 40m -4 / - GU4YBW - / 0 3 ✓ Closing fragment
10-22 13:01 40m -6 / +2 M7IPY -15 / - 4 ✓ Full exchange observed
10-22 12:58 40m -6 / - EI3JCB - / -7 4 ✓ Closing fragment
10-22 12:55 40m -6 / - M7FSE - / - 3 Partial capture
10-22 12:53 40m -7 / - IN3OWY - / -15 3 ✓ Closing fragment
10-22 12:47 40m -6 / - SP4WJ -9 / -22 4 ✓ Closing observed
10-22 09:02 40m -4 / - DJ2MS - / -1 3 ✓ Closing fragment
10-22 08:51 40m -8 / - HB9HDK - / -11 2 Partial capture
10-22 08:45 40m -10 / - M7NQB - / - 3 ✓ Closing fragment
10-22 08:41 40m -12 / - EA1Y - / - 2 ✓ Closing fragment
10-22 08:30 40m -13 / - CS7BMX - / -8 5 ✓ Closing fragment
10-22 08:24 40m -15 / -8 YL3ASK -21 / -25 5 ✓ Full exchange observed
10-22 08:22 40m -14 / - IK2PZX - / +6 3 ✓ Closing fragment
10-22 08:19 40m -13 / - KR4FOH - / - 3 Partial capture
10-22 08:17 40m -16 / - MI7JUX - / +2 2 ✓ Closing fragment
10-18 06:28 80m -3 / - ON4CAS - / - 2 Partial capture
10-18 06:19 80m -3 / - F4PAN -14 / - 7 ✓ Full exchange observed
10-18 06:14 80m -4 / - VA2YVP - / -20 4 ✓ Closing fragment
10-18 06:12 80m -4 / - F8CFO - / - 2 Partial capture
10-18 06:10 80m -11 / - F5BRF - / - 3 ✓ Closing fragment
10-18 06:00 80m -8 / -4 IK4OLQ +2 / -4 6 ✓ Full exchange observed
10-18 05:57 80m -12 / -7 IK1AIL -8 / - 6 ✓ Closing observed
10-18 05:55 80m +4 / -1 DO1SPK -16 / +2 6 ✓ Full exchange observed
10-18 05:41 80m +2 / +3 DC0DPN -6 / 0 4 ✓ Full exchange observed
10-18 05:38 80m +3 / +7 DO1CB -4 / -6 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
152830  +1  362  ON3URT F4GUK JN18 (x3)
153030  -2  362  G0XWD F4GUK JN18 (x2)
153515  -3  363  IW1BYR F4GUK JN18 (x3)
155915  -3 2747  DG1LJP F4GUK JN18 (x3)
160030 -10 1929  F4GUK DG1LJP RR73
160045  -1 2746  DG1LJP F4GUK 73
160115  -2 2746  PE1BOL F4GUK -22 (x2)
80m 
UTC    dB Audio  Message
061445  -5  440  VA2YVP F4GUK JN18 (x4)
061915  -6  440  F4PAN F4GUK JN18 (x3)
062030 -12 1004  F4GUK F4PAN +16
062045  -5  440  F4PAN F4GUK R+21
062100 -17 1004  F4GUK F4PAN RR73
062115  -2  440  F4PAN F4GUK 73
062830  -2  440  ON4CAS F4GUK JN18 (x2)
063515 -20 1378  F8CFO F4GUK JN18
070730 -17 1036  AB8KP F4GUK R-13
160m 
UTC    dB Audio  Message
055930 -23 1540  F4GUK TM47CDXC +08
052600 -19 1313  GW0KRL F4GUK JN18 (x4)
052015 -17 1209  G4RGK F4GUK R+06
052315 -19 2170  F4GUK IK2IWT RR73
050130 -20 1951  XE2X F4GUK JN18 (x3)
050300 -10  950  OZ1BLP F4GUK JN18 (x5)
60m 
UTC    dB Audio  Message
072015 -24 1899  OE5YCP F4GUK JN18 (x3)
072145 -23 1899  SP2CG F4GUK JN18
072200  +3  621  F4GUK SP2CG -05 (x2)
072445 -23 1899  ON8LX F4GUK JN18
072630 -16 1018  F4GUK ON8LX RR73
072645 -23 1866  ON8LX F4GUK 73
072730  -3 1406  F4GUK OK4TO -23 (x2)
073300 -17 2280  DM7XK F4GUK R-08 (x2)
073500 -16 2280  EA6BB F4GUK JN18
073700 -18 2280  G7VIL F4GUK JN18
20m 
UTC    dB Audio  Message
080200  -5 1696  <...> F4GUK JN18
080215  -1 2103  F4GUK II7MGBT -20
080230  -3 1696  <...> F4GUK R+03
080245  -6 2103  F4GUK II7MGBT -20
080545  +8  660  Z62NS F4GUK JN18 (x2)
080630  +4  729  F4GUK Z62NS RR73
080645  +7  659  Z62NS F4GUK 73
10m 
UTC    dB Audio  Message
134900 -14 2110  DN9KAY F4GUK 73
140015 -20 2116  EA7KZ F4GUK R-18
141200 -18 2116  OM1AKD F4GUK JN18
141315 -24 1638  F4GUK II7MGXX -03
141500 -18 2093  <...> F4GUK R-06 (x2)
141615 -15 2078  LZ1EV F4GUK JN18
141945  -8  917  CT4SU F4GUK JN18 (x3)
142800  -8  906  SP8BG F4GUK JN18
142945  -9  918  LZ1EV F4GUK JN18 (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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