SP5EXA — 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: Poland Most frequent locator attributed to this token: KO02

Receiver-side FT8 activity involving SP5EXA, decoded by SO8OO in southeastern Poland. 12,169 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 86 UTC dates in the available aggregate history. Observed between 2026-06-06 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 12,169 FT8 messages attributed to SP5EXA as the transmitting token by decoded message structure across 86 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (30%), followed by 80 m (25%) and 60 m (25%). The busiest six-hour window was 21:00-03:00 UTC, containing 45% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (75%); the estimated median was +2.2 dB.

Overview

12,169
Messages attributed
86
UTC dates decoded
1,229
Active 15-min windows
+2.2 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-22 08:42 UTC

Observed FT8 message patterns

Attributed sample
12,169 messages
Active dates
86 UTC dates
Estimated median S/N
+2.2 dB
Estimated 10th-90th percentile
-13.3 to +18 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 697, moderate (-15 to -9 dB) 2,304, strong (≥ -8 dB) 9,168.

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 SP5EXA

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
KO02 · 8,263 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
290 km (approx.)
Last such locator decoded
2026-10-22 08:41 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 UTCBandSP5EXA S/NCounterpartCounterpart S/NMsgsCapture
10-22 08:41 60m +7 / - OZ1BM - / -3 3 ✓ Closing fragment
10-22 08:23 60m +4 / - F6BQX - / - 5 Partial capture
10-22 08:17 60m +11 / - PA4G -20 / -10 3 ✓ Closing observed
10-22 08:10 60m +8 / - DK5CR/QRP - / - 5 Partial capture
10-22 08:03 60m +7 / - OH2CUB/P - / -17 4 Partial capture
10-22 07:58 60m +7 / - G3YQA - / -9 3 ✓ Closing fragment
10-22 07:56 60m +8 / - OH2CUB/P - / -9 3 ✓ Closing fragment
10-22 07:53 60m +6 / - M0CKX - / - 5 Partial capture
10-22 07:49 60m +7 / - OZ1BM - / - 6 Partial capture
10-22 07:04 60m +11 / - G7SWS - / - 5 Partial capture
10-22 06:55 60m +12 / - F5PPN - / - 4 Partial capture
10-22 06:45 60m +6 / - F4GND -15 / -16 5 ✓ Closing observed
10-22 06:41 60m +4 / - SX37VER - / - 4 Partial capture
10-22 06:37 60m +9 / - DL2SWU -6 / -4 5 ✓ Full exchange observed
10-22 06:33 60m - / -4 SP2JEL 0 / - 4 Partial capture
10-22 06:29 60m +11 / - OH3NAO - / -17 14 ✓ Closing fragment
10-22 06:24 60m +8 / - SP2JEL - / - 5 Partial capture
10-22 06:00 60m +5 / - SV1FJR - / -16 6 Partial capture
10-22 05:55 60m +8 / - G7IGN - / -14 3 ✓ Closing fragment
10-22 05:50 60m +14 / - OE3GCU - / - 5 Partial capture
10-22 05:25 60m -6 / -1 IK3FHW -8 / -16 7 ✓ Full exchange observed
10-22 05:14 60m -5 / - DL5RDP - / -17 3 ✓ Closing fragment
10-22 04:56 60m -5 / - EA8WU - / - 5 Partial capture
10-22 03:59 60m -7 / - NP3MR - / -18 2 ✓ Closing fragment
10-22 03:41 60m -2 / - F4HER/P - / 0 4 Partial capture
10-22 03:36 60m -7 / -15 EP2AES -12 / - 4 ✓ Closing observed
10-22 03:10 60m -4 / - KB2KBC - / - 4 Partial capture
10-22 03:08 60m -5 / - 4Z5ML - / -17 3 ✓ Closing fragment
10-22 02:51 60m -4 / - EP2AES - / - 4 Partial capture
10-22 02:45 60m -4 / - EA6EJ - / -20 9 ✓ Closing fragment
10-22 02:21 60m -3 / - WB2SIH - / -18 5 ✓ Closing fragment
10-22 02:04 60m -2 / - MM0HVU - / - 5 Partial capture
10-22 02:00 60m -2 / - F4HER/P - / - 6 Partial capture
10-22 01:38 60m -3 / -2 G1LQT -8 / -2 5 ✓ Full exchange observed
10-22 01:33 60m -2 / - 3B8FA - / -18 9 ✓ Closing fragment
10-22 01:00 60m -5 / - 3B8FA - / - 6 Partial capture
10-22 00:08 60m 0 / - IU3VGK - / -5 3 ✓ Closing fragment
10-21 23:01 60m -4 / - VU2NKS - / - 4 Partial capture
10-21 22:50 60m -4 / - M1FCV - / - 3 Partial capture
10-21 22:38 60m 0 / - EA4DM - / -21 3 ✓ Closing fragment
10-21 22:21 60m -2 / - EA7GCF - / - 2 Partial capture
10-21 22:03 60m -2 / +6 EA7L -6 / -15 5 ✓ Full exchange observed
10-21 22:01 60m -2 / -2 DL6EI -8 / -10 4 ✓ Full exchange observed
10-21 21:54 60m -5 / - DG9FCP - / - 5 Partial capture
10-21 21:45 60m -4 / 0 F1TYP -2 / 0 5 ✓ Full exchange observed
10-21 21:39 60m -4 / -9 OM2CW -14 / - 5 Partial capture
10-21 21:36 60m -5 / - DG5LP -5 / - 3 ✓ Closing observed
10-21 21:34 60m -4 / +1 DH2RL -10 / -17 5 ✓ Full exchange observed
10-21 21:31 60m 0 / -8 IZ5BTF -14 / - 4 Partial capture
10-21 21:16 60m -2 / - IK5HHA - / - 12 Partial capture

Recent FT8 messages decoded at SO8OO

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

60m
UTC    dB Audio  Message
081100  +9 2723  DK5CR/QRP SP5EXA KO02 (x4)
081700 +11 2723  PA4G SP5EXA R-10
081715 -20 1341  SP5EXA PA4G RR73
081730 +11 2723  PA4G SP5EXA 73
082345  +9 2723  F6BQX SP5EXA KO02 (x5)
084115  +4 2723  OZ1BM SP5EXA KO02 (x3)
40m
UTC    dB Audio  Message
083945 +17 2835  G6HKZ SP5EXA KO02 (x3)
084115 +18 2835  F4MXT/P SP5EXA KO02 (x2)
084215 +11 2835  <HA70KFL> SP5EXA KO02 (x4)
084645 +15 2836  UT3UEH SP5EXA KO02 (x3)
084800  -8  497  SP5EXA UT3UEH R-05
084815  +9 2835  UT3UEH SP5EXA RR73 (x2)
80m
UTC    dB Audio  Message
071945 +18 2599  UA1CKA SP5EXA KO02 (x2)
072030 -20 1469  SP5EXA UA1CKA -10
072045 +18 2599  UA1CKA SP5EXA KO02
072100 -16 1469  SP5EXA UA1CKA -10
072115 +18 2599  UA1CKA SP5EXA KO02
072130 -13 1469  SP5EXA UA1CKA -10
072145 +17 2599  UA1CKA SP5EXA KO02
072200 -14 1469  SP5EXA UA1CKA -10 (x2)
075945 +16 2599  SP9XKV SP5EXA KO02
080000  -1 2465  SP5EXA SP9XKV +15
080015 +14 2599  SP9XKV SP5EXA R-08
080030  -4 2466  SP5EXA SP9XKV RRR
080045 +15 2599  SP9XKV SP5EXA 73
160m
UTC    dB Audio  Message
174945  +3 1354  H49A SP5EXA KO02 (x15)
10m
UTC    dB Audio  Message
113345 -11 1057  SP5EXA PD1HTW RR73
115415 -19 2090  SP5EXA DO1DMR +10
115445 -18 2171  SP5EXA DO3HCS JO52
115445 -13 2091  SP5EXA DO1DMR +22
115515 -21 2171  SP5EXA DO3HCS JO52
115515 -17 2090  SP5EXA DO1DMR RR73
105845 -16 1135  SP5EXA SV1EGE R-12
180915 -18  965  SP5EXA <...> +23
094545 -18 1454  SP5EXA F5JUS +03 (x2)
102130 -14 1103  SP5EXA F4AHJ -06 (x2)
115615 -12  852  SP5EXA F4FKT +04 (x2)
113945 -24 1768  SP5EXA 7Z1LR +02
20m
UTC    dB Audio  Message
223300 -16 1535  SP5EXA G6JWB RRR
012415  -9 1246  SP5EXA JY5JA +00 (x2)
180215 -22 1292  <...> SP5EXA KO02
180200 -18 1271  SP5EXA 947KIP/R +12
180700 -23 1662  <...> SP5EXA R-08 (x2)
203015 -17 1063  JA9CHI SP5EXA KO02
203215 -18 1063  BA4II SP5EXA KO02
171230  -4  681  4X5IG SP5EXA KO02 (x3)
025230  -5  966  CE3RKW SP5EXA KO02 (x2)
193900  +3 2542  SP5EXA D2IM +10

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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