SP1EXD — 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: JO73

Receiver-side FT8 activity involving SP1EXD, decoded by SO8OO in southeastern Poland. 446 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 46 UTC dates in the available aggregate history. Observed between 2026-06-06 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 446 FT8 messages attributed to SP1EXD as the transmitting token by decoded message structure across 46 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (65%), followed by 20 m (20%) and 80 m (15%). Most decodes (56%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

446
Messages attributed
46
UTC dates decoded
102
Active 15-min windows
-11 dB
Estimated median S/N

Bands

80m · 68 40m · 291 20m · 87
First attributed message: 2026-06-06
Last attributed message: 2026-11-03 12:00 UTC

Observed FT8 message patterns

Attributed sample
446 messages
Active dates
46 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-18 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 96, moderate (-15 to -9 dB) 177, strong (≥ -8 dB) 173.

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 SP1EXD 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 SP1EXD

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
JO73 · 235 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
613 km (approx.)
Last such locator decoded
2026-11-03 11:58 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 UTCBandSP1EXD S/NCounterpartCounterpart S/NMsgsCapture
11-03 11:58 40m -12 / - 9A5MP - / -10 6 ✓ Closing fragment
11-03 11:54 40m -16 / - JF1DAA - / - 3 Partial capture
10-31 06:59 40m -17 / -13 SP2IHI -6 / - 6 Partial capture
10-31 06:44 40m -10 / - C5R - / - 3 Partial capture
10-31 06:41 40m -17 / - YL3PK - / +9 3 ✓ Closing fragment
10-28 11:07 40m -18 / - LZ2KSQ - / - 2 Partial capture
10-28 11:04 40m -18 / -13 YO1BRANCUSI -6 / - 2 Partial capture
10-26 11:56 40m - / - UT/WE9G -17 / - 2 ✓ Closing fragment
10-26 11:55 40m -14 / - PD2MAC/P - / -12 3 Partial capture
10-26 11:49 40m -21 / - LA6RJA - / -7 4 ✓ Closing fragment
10-26 11:48 40m -21 / - SP6SR - / - 2 ✓ Closing fragment
10-26 11:46 40m -17 / +3 SP5LAG -5 / -4 5 ✓ Full exchange observed
10-26 11:45 40m -17 / - F1GUQ - / -8 3 ✓ Closing fragment
10-21 18:55 80m +4 / - EX8BT - / - 6 Partial capture
10-21 18:53 80m 0 / - SP2BOT -24 / +1 5 ✓ Closing observed
10-21 10:21 40m -10 / - M1DBB - / +6 3 ✓ Closing fragment
10-19 10:51 40m -12 / - G0ORH - / +2 7 Partial capture
10-19 10:48 40m -14 / -3 OZ9FF -14 / - 5 ✓ Full exchange observed
10-19 10:46 40m -18 / -12 ON8LX -20 / +5 4 ✓ Full exchange observed
10-19 10:42 40m -13 / - SP2MGR/P - / +10 3 Partial capture
10-19 10:42 40m -13 / -9 S53AK -10 / +9 8 ✓ Full exchange observed
10-19 10:40 40m -14 / - DA0M - / +7 3 ✓ Closing fragment
10-16 18:22 80m -6 / - GW4AYJ - / - 2 Partial capture
10-15 17:28 40m -16 / - RW6B - / 0 2 ✓ Closing fragment
10-15 17:22 40m -4 / - BG4FRZ - / - 3 Partial capture
10-15 17:16 40m - / - DL3IAK -10 / - 2 ✓ Closing fragment
10-15 17:08 40m -9 / - ZL1VAH - / - 3 Partial capture
10-14 12:01 40m -15 / - ON5VKE - / - 4 ✓ Closing fragment
10-09 14:55 40m -16 / - LB8TG - / +4 2 Partial capture
10-09 14:50 40m -14 / -6 YU7GMN +3 / - 4 ✓ Full exchange observed
10-07 11:33 40m -13 / - UA4FKT - / -3 2 ✓ Closing fragment
10-07 11:32 40m -13 / 0 SP4BB -6 / - 4 ✓ Full exchange observed
10-07 10:51 40m -10 / -9 SQ3PMX -10 / - 3 Partial capture
10-05 16:31 40m -14 / - YD4AWV - / - 3 Partial capture
10-05 16:30 40m -12 / - VJ6X - / - 2 Partial capture
10-05 16:26 40m -9 / - 9K2RT -24 / -11 5 Partial capture
09-23 15:37 40m -11 / - RI1FJZ - / - 5 Partial capture
09-23 15:34 40m -9 / - EI6JMB - / - 3 Partial capture
09-20 13:19 40m -11 / - SQ8V -18 / - 5 ✓ Closing observed
08-28 14:47 40m -8 / - IK1MJK/P - / - 3 Partial capture
08-28 14:39 40m -8 / - GM3DRA - / -4 5 ✓ Closing fragment
08-27 15:06 40m -6 / -7 S57TW +8 / - 5 ✓ Full exchange observed
08-27 14:54 40m -6 / - HB9SFL - / - 3 Partial capture
08-25 13:44 40m -13 / 0 OZ9FF -12 / - 5 ✓ Full exchange observed
08-25 13:40 40m -10 / - M7FHO - / -7 5 ✓ Closing fragment
08-20 15:32 20m - / -2 UA4FEN -2 / - 2 Partial capture
08-20 15:31 20m -2 / -10 ZA5G -19 / - 3 ✓ Closing observed
08-20 15:14 40m -11 / -12 HA3GO -4 / +2 5 ✓ Full exchange observed
08-20 15:07 40m -13 / - DB3MAX - / - 2 ✓ Closing fragment
08-20 15:04 40m -14 / -16 DJ2MS -13 / +2 8 ✓ 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
065915 -17 1649  SP2IHI SP1EXD JO73 (x2)
070000  -3 2332  SP1EXD SP2IHI -13
070015 -19 1649  SP2IHI SP1EXD JO73
070100  -9 2332  SP1EXD SP2IHI -14 (x2)
115445 -18 1509  JF1DAA SP1EXD JO73 (x3)
115815 -13 1509  9A5MP SP1EXD JO73 (x6)
80m 
UTC    dB Audio  Message
182245  -7 1794  GW4AYJ SP1EXD JO73 (x2)
185345  +0 1264  SP2BOT SP1EXD JO73 (x2)
185430 -24 1262  SP1EXD SP2BOT RR73
185445  +4 1264  SP2BOT SP1EXD 73
185500 -23 1263  SP1EXD SP2BOT RR73
185545  +2 1264  EX8BT SP1EXD JO73 (x6)
180730  -6 1496  SP1EXD YO8BJK -04
181430  -7 1472  IU3WOZ SP1EXD JO73
20m 
UTC    dB Audio  Message
153100  -6 1628  ZA5G SP1EXD JO73
153115 -19  820  SP1EXD ZA5G -10
153200  +1 1628  ZA5G SP1EXD 73
153215  -4 1628  SP1EXD UA4FEN -02 (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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