SP7IWA — 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 SP7IWA, decoded by SO8OO in southeastern Poland. 1,217 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 44 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-23.

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 1,217 FT8 messages attributed to SP7IWA as the transmitting token by decoded message structure across 44 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (50%), followed by 60 m (32%) and 160 m (11%). Most decodes (81%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (87%); the estimated median was +3.2 dB.

Overview

1,217
Messages attributed
44
UTC dates decoded
128
Active 15-min windows
+3.2 dB
Estimated median S/N

Bands

160m · 128 80m · 611 60m · 384 40m · 79 20m · 15
First attributed message: 2026-06-08
Last attributed message: 2026-10-23 21:34 UTC

Observed FT8 message patterns

Attributed sample
1,217 messages
Active dates
44 UTC dates
Estimated median S/N
+3.2 dB
Estimated 10th-90th percentile
-10.7 to +13 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 63, moderate (-15 to -9 dB) 92, strong (≥ -8 dB) 1,062.

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 SP7IWA 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 SP7IWA

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 · 1,007 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
290 km (approx.)
Last such locator decoded
2026-10-23 21:34 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 UTCBandSP7IWA S/NCounterpartCounterpart S/NMsgsCapture
10-23 21:30 160m +8 / - 4J3DJ - / - 8 Partial capture
10-23 10:19 10m - / - 4X5CG -12 / - 2 Partial capture
10-22 20:55 80m -7 / - R2EA/P - / - 5 Partial capture
10-22 20:50 80m -3 / -16 C31CT -8 / -15 7 ✓ Full exchange observed
10-22 19:19 160m +8 / - S79VU - / - 9 Partial capture
10-22 18:53 80m -5 / - EP2AES - / - 5 Partial capture
10-22 16:41 60m -4 / - 3B8FA - / - 28 Partial capture
10-22 16:17 60m +5 / - 3B8FA - / - 27 Partial capture
10-22 16:01 60m +1 / - 3B8FA - / - 6 Partial capture
10-22 06:47 60m +6 / - FK8HC - / - 32 Partial capture
10-22 01:52 60m -2 / - 3B8FA - / - 2 Partial capture
10-22 01:37 60m -19 / - 3B8FA - / - 22 Partial capture
10-22 00:50 60m -17 / - HI3A - / - 7 Partial capture
10-21 09:33 10m - / -2 EP2AES -16 / - 2 ✓ Closing fragment
10-20 22:30 160m - / - UA4FKT -4 / - 2 Partial capture
10-20 22:25 160m -2 / - 7P8GE - / -15 3 ✓ Closing fragment
10-20 22:21 160m +4 / - 7P8GE - / - 2 Partial capture
10-18 19:35 60m -9 / - 4Z1KN - / - 10 Partial capture
10-18 19:28 60m -16 / - A93MO - / - 2 ✓ Closing fragment
10-18 19:24 60m -12 / - A93MO - / - 3 Partial capture
10-18 17:38 60m +6 / - S79VU - / - 8 Partial capture
10-18 17:35 60m +8 / - S79VU - / - 2 Partial capture
10-18 17:27 60m +2 / - S79VU - / - 12 Partial capture
10-16 21:15 80m 0 / - JE6WOQ - / -21 5 Partial capture
10-16 06:06 60m +10 / - VP2MAW - / -25 34 Partial capture
10-16 06:02 60m +5 / - EG46PPA - / - 2 Partial capture
10-16 05:55 60m +4 / - VP2MAW - / -18 15 Partial capture
10-15 20:25 160m +3 / -20 9H1ES -10 / -18 21 Partial capture
10-14 21:28 80m - / - SP4WJ -12 / - 3 Partial capture
10-14 21:24 80m +2 / - PJ2/W4IPC - / - 4 Partial capture
10-14 21:01 80m -15 / -18 JJ3JHP -8 / -19 4 ✓ Full exchange observed
10-14 20:53 80m -10 / -16 JH4IFF -12 / -13 5 ✓ Full exchange observed
10-14 20:52 80m -14 / -18 JA0HXV -19 / - 3 Partial capture
10-14 20:49 80m - / -19 JE2ERR -6 / - 4 ✓ Closing fragment
10-14 20:44 80m -10 / - JH4HMG - / - 3 Partial capture
10-14 20:39 80m -6 / -12 JR1AIB -3 / -21 5 ✓ Full exchange observed
10-14 20:37 80m -10 / - JA1TBA - / - 3 Partial capture
10-14 05:06 80m -3 / - HF50HSP - / - 5 Partial capture
10-12 20:24 60m - / +10 DF6WE -6 / - 3 ✓ Closing fragment
10-12 20:17 60m -12 / - ON7PM - / -13 2 ✓ Closing fragment
10-12 20:15 60m -14 / -5 EA4D -19 / +1 3 ✓ Full exchange observed
10-12 20:06 60m - / -7 M0IOY -7 / - 2 Partial capture
10-12 20:04 60m - / - F5PZT -7 / - 3 ✓ Closing fragment
10-12 20:02 60m - / - OH1LA -10 / - 2 ✓ Closing fragment
10-12 15:43 60m +3 / - H49A - / - 13 Partial capture
10-10 20:46 160m +1 / - IS0BQE - / - 5 Partial capture
10-09 21:40 160m +6 / - SV5BYP - / - 6 Partial capture
10-09 20:48 60m -12 / 0 9K2GR -7 / - 6 ✓ Closing observed
10-09 20:30 60m -6 / - 9T0MD - / - 9 Partial capture
10-07 20:15 160m +16 / - 9H1ES - / - 13 Partial capture

Recent FT8 messages decoded at SO8OO

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

160m 
UTC    dB Audio  Message
192030  +6 2114  S79VU SP7IWA KO02 (x7)
213030 +11 1327  4J3DJ SP7IWA KO02 (x8)
10m 
UTC    dB Audio  Message
162815 -10  655  SP7IWA SV2CLJ KN10 (x3)
163545 -17 1194  SP7IWA R6DWD +01
145300  -8 1016  SP7IWA DN9SHA JO31 (x2)
173800 -16 1054  SP7IWA S55A RR73
090745  -5  497  SP7IWA <...> -01
093300 -17 1088  SP7IWA EP2AES -02 (x2)
101915 -15 1919  SP7IWA 4X5CG +20 (x2)
102115 -22 1999  SP7IWA CX6TU RR73
80m 
UTC    dB Audio  Message
185500  -5 1359  EP2AES SP7IWA KO02
205000  -7 2154  SP7IWA C31CT -16
205015  -2 2027  C31CT SP7IWA KO02
205030 -11 2154  SP7IWA C31CT -12
205045  -3 2027  C31CT SP7IWA R-15 (x2)
205130  -5 2154  SP7IWA C31CT RR73
205145  -3 2027  C31CT SP7IWA 73
205200  +2  922  SP7IWA DL7ACA JO40
205500 -10 2027  R2EA/P SP7IWA KO02 (x5)
205715  +6 2151  SP7IWA OE/DL1JAT -05
60m 
UTC    dB Audio  Message
164730  -2 1844  3B8FA SP7IWA KO02 (x15)
40m 
UTC    dB Audio  Message
193445  -6 2189  5A1AL SP7IWA R-22 (x12)
214845 -14  778  <...> SP7IWA KO02
214945 -15  779  BI4VKA SP7IWA -19
224730 -11 2492  SP7IWA 4O7CC -13
20m 
UTC    dB Audio  Message
202845 -13 2388  SP7IWA D2ACE -12 (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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