F4FBC — 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: JN19

Receiver-side FT8 activity involving F4FBC, decoded by SO8OO in southeastern Poland. 758 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 51 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-11.

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 F4FBC as the transmitting token by decoded message structure across 51 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (30%), followed by 10 m (29%) and 40 m (24%). Most decodes (54%) 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 -11 dB.

Overview

758
Messages attributed
51
UTC dates decoded
161
Active 15-min windows
-11 dB
Estimated median S/N

Bands

80m · 95 60m · 31 40m · 181 20m · 228 10m · 223
First attributed message: 2026-06-08
Last attributed message: 2026-10-11 22:53 UTC

Observed FT8 message patterns

Attributed sample
758 messages
Active dates
51 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-20.3 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 220, moderate (-15 to -9 dB) 239, strong (≥ -8 dB) 299.

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 F4FBC 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 F4FBC

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
JN19 · 514 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,348 km (approx.)
Last such locator decoded
2026-10-11 22:53 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 UTCBandF4FBC S/NCounterpartCounterpart S/NMsgsCapture
10-11 22:50 80m -13 / - 9H6C - / - 7 Partial capture
10-11 22:48 80m -20 / - EB3JT -17 / - 2 ✓ Closing observed
10-11 22:45 80m -18 / +3 IU2THY -6 / -9 5 Partial capture
10-11 22:41 80m -24 / - EC3A - / -4 2 Partial capture
10-11 22:41 80m -19 / - M0IOY -6 / 0 7 Partial capture
10-07 22:11 40m -3 / - VK6WTF - / - 5 Partial capture
10-07 22:08 40m -7 / - YD4AWV - / - 6 Partial capture
10-07 22:05 40m -8 / - VK6WTF - / - 3 Partial capture
10-06 17:25 10m -13 / - DN9MAI - / -16 2 Partial capture
09-27 21:01 40m -7 / - ZC4OL - / - 2 Partial capture
09-27 20:56 40m -20 / - ZC4OL - / - 2 Partial capture
09-20 23:50 40m -1 / - TN8GD - / - 5 Partial capture
09-20 23:44 40m -11 / -19 CN8NS -19 / -8 9 ✓ Full exchange observed
09-18 23:01 40m -15 / - UB3ADO/P - / - 4 Partial capture
09-17 22:23 40m - / -15 UA4FKT +6 / - 3 Partial capture
09-10 00:25 40m -12 / - OA4ENG - / - 5 Partial capture
09-10 00:24 40m -9 / - K9GTA - / - 3 Partial capture
09-10 00:23 40m -3 / - KE2FUM - / - 2 Partial capture
09-10 00:22 40m -7 / - K8BL - / - 2 Partial capture
09-10 00:13 40m +2 / - OD5ZZ - / -18 4 ✓ Closing fragment
09-10 00:12 40m -10 / - OA4ENG - / - 2 Partial capture
09-10 00:00 40m -12 / - KA3FMO - / - 3 Partial capture
09-09 23:58 40m -3 / - K4DND -5 / -7 4 ✓ Closing observed
09-09 23:55 40m -8 / - R5AV - / -5 2 ✓ Closing fragment
09-09 23:45 40m -6 / - JY5IB - / - 3 Partial capture
09-09 23:42 40m -8 / - SP7TF - / -6 2 ✓ Closing fragment
09-09 23:37 40m +1 / - SP5EXA - / - 2 ✓ Closing fragment
09-09 23:36 40m +9 / - OH1ZE - / -11 2 ✓ Closing fragment
09-09 23:35 40m -7 / - CT7ARQ -17 / -3 9 Partial capture
09-09 23:30 40m -4 / -18 VP2MAA -6 / -15 10 ✓ Full exchange observed
08-31 23:36 80m -16 / - SP9YGD +13 / +5 5 Partial capture
08-31 23:29 80m -18 / -18 9A5MP -18 / -14 4 Partial capture
08-31 23:25 80m -14 / -16 G8OO -6 / +6 5 ✓ Full exchange observed
08-31 23:22 80m - / 0 OK9BMT +1 / - 3 Partial capture
08-31 20:35 20m +4 / -6 MI7RDK +6 / -11 4 ✓ Full exchange observed
08-31 20:34 20m +6 / - BH8NNU - / -20 2 ✓ Closing fragment
08-31 19:30 60m -18 / - EA9AR - / - 4 Partial capture
08-31 19:17 60m -18 / -8 DL1UDO -2 / - 5 ✓ Full exchange observed
08-31 19:16 60m - / -15 SP9UPH +13 / - 3 ✓ Closing fragment
08-31 19:14 60m -14 / -15 OE3OOG +6 / 0 5 ✓ Full exchange observed
08-31 19:13 60m -14 / +1 G3SUY +2 / +3 5 ✓ Full exchange observed
08-31 19:10 60m -21 / - JY4CI - / - 2 Partial capture
08-30 23:04 40m 0 / - TT1GD - / - 8 Partial capture
08-30 23:02 40m -1 / - HI3TAR - / - 3 Partial capture
08-30 22:01 20m - / -9 JE1LET -12 / - 3 ✓ Closing fragment
08-30 21:56 20m - / -16 JF2UPM -20 / - 2 ✓ Closing fragment
08-30 21:42 20m - / -10 N3ICK -20 / - 5 Partial capture
08-30 21:41 20m - / - JH1BZJ -4 / - 2 ✓ Closing fragment
08-30 21:41 20m - / - DL4LBT -15 / - 8 Partial capture
08-30 20:54 20m +6 / - BG7BMG - / -17 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
224545 -16 2075  IU2THY F4FBC -09
224600  -7 2717  F4FBC IU2THY JN45
224615 -21 2075  IU2THY F4FBC -13
224630  -7 2716  F4FBC IU2THY R+03
224845 -20 2075  EB3JT F4FBC RR73
224900 -17 2076  F4FBC EB3JT 73
224945  -7 2075  CQ F4FBC JN19 (x2)
225045  -8 2075  9H6C F4FBC JN19 (x7)
40m 
UTC    dB Audio  Message
220445  -5 2486  KE8UOH F4FBC JN19
220545 -12 2486  VK6WTF F4FBC JN19 (x3)
220815  -6 2486  YD4AWV F4FBC JN19 (x6)
221145  -5 2486  VK6WTF F4FBC JN19 (x5)
10m 
UTC    dB Audio  Message
071615 -17 1053  CQ DX F4FBC JN19 (x5)
091430 -21 1702  F4FBC EX7CQ -19
124115 -13 2575  RK6OU F4FBC RR73
133115 -12 2574  LX1RFJ F4FBC R-16
165645 -17 2430  S79VU F4FBC JN19
172545 -15 2427  DN9MAI F4FBC -16 (x2)
20m 
UTC    dB Audio  Message
214500 -20 1471  F4FBC N3ICK R-10
215600 -21 1273  F4FBC JF2UPM R-16 (x2)
220100 -12 2267  F4FBC JE1LET PM95 (x3)
203315 +12 1746  CQ F4FBC JN19 (x3)
203445  +6 1745  BH8NNU F4FBC -20 (x2)
203530  +8  539  F4FBC MI7RDK IO74
203545  +8 1745  MI7RDK F4FBC -11
203600  +4  539  F4FBC MI7RDK R-06
203615  +0 1745  MI7RDK F4FBC RR73
60m 
UTC    dB Audio  Message
191700 +13  943  F4FBC SP9UPH 73
191700  +0 1528  F4FBC DL1UDO JO31
191715 -19 1528  DL1UDO F4FBC +14
191730  -1 1528  F4FBC DL1UDO R-08
191745 -18 1527  DL1UDO F4FBC RR73
191800  -4 1528  F4FBC DL1UDO 73
191815 -19 1528  CQ F4FBC JN19 (x4)
193015 -16 1039  EA9AR F4FBC JN19 (x4)
193915 -20 1570  DK1MBY F4FBC RR73

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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