SP7VCL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO91

Receiver-side FT8 activity involving SP7VCL, decoded by SO8OO in southeastern Poland. 4,704 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 72 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-04.

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 4,704 FT8 messages attributed to SP7VCL as the transmitting token by decoded message structure across 72 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (58%), followed by 80 m (42%). The busiest six-hour window was 08:00-14:00 UTC, containing 39% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (83%); the estimated median was -0.8 dB.

Overview

4,704
Messages attributed
72
UTC dates decoded
447
Active 15-min windows
-0.8 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-04 19:26 UTC

Observed FT8 message patterns

Attributed sample
4,704 messages
Active dates
72 UTC dates
Estimated median S/N
-0.8 dB
Estimated 10th-90th percentile
-11 to +15 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 121, moderate (-15 to -9 dB) 661, strong (≥ -8 dB) 3,922.

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 SP7VCL

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
JO91 · 1,117 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
262 km (approx.)
Last such locator decoded
2026-10-04 19:19 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 UTCBandSP7VCL S/NCounterpartCounterpart S/NMsgsCapture
10-04 19:26 80m -7 / -6 R1BQ -4 / -12 4 ✓ Full exchange observed
10-04 19:23 80m - / -2 SP9RBW +5 / - 4 ✓ Closing fragment
10-04 19:21 80m -1 / - F5JVT -23 / - 3 ✓ Closing observed
10-04 19:20 80m -2 / - SP5AMK - / -5 2 ✓ Closing fragment
10-04 19:16 80m -12 / - SP3AKK -11 / -6 3 ✓ Closing observed
10-04 19:13 80m -2 / - SP9QMN +4 / - 4 ✓ Closing observed
10-04 19:12 80m -2 / - SP2LPI -16 / -9 3 ✓ Closing observed
10-04 19:11 80m 0 / - SO5A +13 / -3 13 ✓ Full exchange observed
10-04 19:11 80m -12 / +1 SQ5TOM +2 / 0 10 ✓ Full exchange observed
10-04 19:10 80m +4 / - SQ9OUG +13 / +1 5 ✓ Full exchange observed
10-04 19:09 80m - / -16 SP3AKK -3 / - 8 Partial capture
10-04 19:07 80m -8 / -6 SQ3WL +6 / +1 10 ✓ Full exchange observed
10-04 19:05 80m -10 / - SP7CWZ - / -5 3 ✓ Closing fragment
10-04 19:04 80m -14 / +2 OM3CND -1 / -5 5 ✓ Full exchange observed
10-04 19:04 80m - / - R7CD +8 / - 3 Partial capture
10-04 19:03 80m - / -16 SP3AKK 0 / - 6 Partial capture
10-04 19:01 80m +2 / - SP5DFK/QRP - / -2 2 Partial capture
10-04 19:00 80m +6 / +1 SP3BVI +12 / +1 4 ✓ Full exchange observed
10-04 11:28 10m - / -3 5Z4VJ -12 / - 2 ✓ Closing fragment
10-03 20:48 80m - / - SQ2PQ +15 / - 5 Partial capture
10-03 20:38 80m +12 / - YU65AEC - / -4 3 Partial capture
10-03 20:35 80m +10 / - SP5JET - / -14 3 ✓ Closing fragment
10-03 20:33 80m +6 / - T77R - / -7 5 ✓ Closing fragment
10-03 20:30 80m +12 / - DL7UKM 0 / -5 5 ✓ Full exchange observed
10-03 20:28 80m +12 / +6 SP2BBQ -5 / -5 4 ✓ Full exchange observed
10-03 20:26 80m +13 / - SP7ROM - / -1 3 ✓ Closing fragment
10-03 20:25 80m +14 / - DD7EE - / -2 2 Partial capture
10-03 20:20 80m +14 / -6 SP3AKK -5 / - 8 ✓ Closing observed
10-03 20:20 80m +10 / -4 SQ3WL -5 / -8 5 ✓ Full exchange observed
10-03 20:19 80m - / -14 DD7EE +4 / - 4 ✓ Closing fragment
10-03 20:19 80m - / - SP1MGM +5 / - 4 ✓ Closing fragment
10-03 20:17 80m +8 / - SP2BT - / -13 4 ✓ Closing fragment
10-03 20:14 80m - / 0 SP2SN -4 / - 3 Partial capture
10-03 20:12 80m +1 / +4 SP4WJ -18 / -1 5 ✓ Full exchange observed
10-03 20:12 80m - / +9 SP7VLU +8 / - 9 ✓ Closing fragment
10-03 20:11 80m - / -2 SP3AKK -1 / - 8 Partial capture
10-03 20:09 80m +8 / -2 SQ8JLE +3 / -15 8 ✓ Closing observed
10-03 20:09 80m +6 / +4 SQ5TOM +2 / -3 5 ✓ Full exchange observed
10-03 20:09 80m +4 / +6 SQ8MXC +2 / - 6 ✓ Closing observed
10-03 20:08 80m - / - RU3T +4 / - 2 Partial capture
10-03 20:07 80m +12 / - SM6STI - / -10 2 ✓ Closing fragment
10-03 11:12 40m -1 / - SH6RES - / -5 2 ✓ Closing fragment
10-03 09:21 40m +3 / - DA0M - / -18 3 ✓ Closing fragment
10-03 09:20 40m +8 / - SP1JA - / 0 2 Partial capture
10-03 09:16 40m -2 / - G0HSP - / -9 4 ✓ Closing fragment
10-03 09:13 40m -2 / - DL6ZOG -6 / -2 3 Partial capture
10-03 09:07 40m -1 / - SP7TF - / -2 7 Partial capture
10-03 09:05 40m -2 / - DK3XU - / -14 2 ✓ Closing fragment
10-03 09:04 40m -7 / - DL6ZOG -10 / +2 2 Partial capture
10-03 09:02 40m -7 / +1 OM0MR -14 / -11 6 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
191730 -11 2131  SP7VCL SP3AKK 73
191915  +0 1437  CQ SP7VCL JO91
192015  -4 1145  SP5AMK SP7VCL -05 (x2)
192115 -22 1626  SP7VCL F5JVT JN18 (x2)
192230  -1 1451  F5JVT SP7VCL RR73
192315  -1 1585  SP7VCL SP9RBW JO90 (x4)
192600  -8  757  R1BQ SP7VCL -12
192615  -3  757  SP7VCL R1BQ R-06
192630  -6  757  R1BQ SP7VCL RR73
192645  -6  757  SP7VCL R1BQ 73
10m
UTC    dB Audio  Message
101800 -10 1123  SP7VCL DL3MIB R-09 (x2)
101930  -5 1333  SP7VCL SV7BAY KN21
102100  -8 2591  SP7VCL PD0HLA RR73
102400 -15 2322  SP7VCL R6DVV KN95 (x2)
121100 -15 1966  SP7VCL F5RRS R-10 (x2)
091830 -14  831  SP7VCL MD0CCE R+14 (x2)
092830 -15 1796  SP7VCL CN2DX R-07 (x2)
105430  -9 2566  SP7VCL SV1EKI R+03
112830 -13 2534  SP7VCL 5Z4VJ R-03 (x2)
40m
UTC    dB Audio  Message
091600  -4 1257  CQ SP7VCL JO91
091630  -3 1258  G0HSP SP7VCL -09 (x4)
092000  +8  584  SP1JA SP7VCL +00 (x2)
092100  -5 1474  CQ SP7VCL JO91
092130  -1 2455  DA0M SP7VCL -18 (x3)
092330  +4  932  CQ SP7VCL JO91
092400  -5 1932  DL6ZOG SP7VCL -04
111245  -2 2591  SH6RES SP7VCL -05 (x2)
20m
UTC    dB Audio  Message
134530  +4  908  SP7VCL PD3LKN JO22 (x2)
081230 -18 2164  SP7VCL LA8ENA R-05 (x4)
081830  +3 2420  SP7VCL HB9ACA R-04 (x2)
081930  -6 2421  SP7VCL UA4FKT LO23 (x2)
082130 -18 2113  SP7VCL M7OBM R-09 (x5)

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.

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