SP7ROM — 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: JO91

Receiver-side FT8 activity involving SP7ROM, decoded by SO8OO in southeastern Poland. 1,943 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 98 UTC dates in the available aggregate history. Observed between 2026-06-06 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 1,943 FT8 messages attributed to SP7ROM as the transmitting token by decoded message structure across 98 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (62%), followed by 80 m (26%) and 60 m (9%). Most decodes (51%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (62%); the estimated median was -7 dB.

Overview

1,943
Messages attributed
98
UTC dates decoded
336
Active 15-min windows
-7 dB
Estimated median S/N

Bands

80m · 498 60m · 184 40m · 1,199 20m · 62
First attributed message: 2026-06-06
Last attributed message: 2026-10-23 19:03 UTC

Observed FT8 message patterns

Attributed sample
1,943 messages
Active dates
98 UTC dates
Estimated median S/N
-7 dB
Estimated 10th-90th percentile
-14.6 to +2.1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 149, moderate (-15 to -9 dB) 592, strong (≥ -8 dB) 1,202.

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 SP7ROM 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 SP7ROM

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 · 1,241 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
262 km (approx.)
Last such locator decoded
2026-10-23 19:03 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 UTCBandSP7ROM S/NCounterpartCounterpart S/NMsgsCapture
10-23 19:43 60m - / 0 DH4PAP -6 / - 2 ✓ Closing fragment
10-23 19:42 60m - / -15 R3ZBD -14 / - 2 ✓ Closing fragment
10-23 19:40 60m - / -3 DM1SV -10 / - 2 ✓ Closing fragment
10-23 19:31 60m - / - IK5EEA -5 / - 2 Partial capture
10-23 19:30 60m - / -10 F1TXI -4 / - 2 ✓ Closing fragment
10-23 19:29 60m - / -4 HB9HQX -10 / - 2 ✓ Closing fragment
10-23 19:27 60m - / -15 DL9KB -6 / - 2 ✓ Closing fragment
10-23 19:25 60m - / -20 OE9RWH +4 / - 2 ✓ Closing fragment
10-23 19:14 60m - / -2 F4HDR +5 / - 2 ✓ Closing fragment
10-23 19:12 60m - / -21 GM4ZMK -9 / - 2 ✓ Closing fragment
10-23 19:11 60m - / - OE9GWV -19 / - 3 Partial capture
10-23 19:03 80m -10 / -9 SP7VCL +2 / - 5 ✓ Closing observed
10-23 18:59 80m -2 / - SP7VCL - / - 3 Partial capture
10-22 19:29 80m -10 / -12 E73X -1 / -8 5 ✓ Full exchange observed
10-22 19:28 80m -10 / -11 DG4ST -13 / -13 4 ✓ Full exchange observed
10-22 19:25 80m -8 / +5 OK2WMC +8 / +7 4 ✓ Full exchange observed
10-22 19:17 80m -10 / - SM7TZK - / -2 6 ✓ Closing fragment
10-22 19:12 80m - / - DK8HC -8 / - 5 Partial capture
10-22 18:56 60m - / +1 DL4YDR -16 / - 3 ✓ Closing fragment
10-22 18:55 60m - / +1 DK3JW +8 / - 3 ✓ Closing fragment
10-22 18:49 60m - / +1 IK3VUT +1 / - 4 Partial capture
10-22 18:45 60m - / -14 PE1NPS +4 / - 3 ✓ Closing fragment
10-22 18:31 60m - / - DF4WQ -2 / - 7 Partial capture
10-22 18:23 60m - / -9 F5LMJ -17 / - 3 ✓ Closing fragment
10-22 18:22 60m - / -13 EA1IOK -13 / - 3 ✓ Closing fragment
10-22 18:19 60m - / -6 LZ1SAD +1 / - 3 ✓ Closing fragment
10-22 18:06 40m - / -3 IZ5IIN -10 / - 2 ✓ Closing fragment
10-19 19:48 60m - / -17 IN3IZQ -14 / - 5 ✓ Closing fragment
10-19 18:56 60m - / -7 SP3JHZ -3 / - 3 ✓ Closing fragment
10-17 19:51 40m - / -10 YO4NT -10 / - 2 ✓ Closing fragment
10-08 20:13 80m -10 / -8 SQ5ANT +2 / +4 5 ✓ Full exchange observed
10-07 19:28 80m -8 / -16 IN3IBW +4 / -3 6 ✓ Full exchange observed
10-07 19:27 80m - / -21 DO8JB -9 / - 2 Partial capture
10-07 19:21 80m -14 / -12 SQ5ANT 0 / +8 6 ✓ Full exchange observed
10-06 19:27 40m - / -15 DM8ITZ +2 / - 2 ✓ Closing fragment
10-05 20:12 40m - / -11 IU1SCQ 0 / - 4 ✓ Closing fragment
10-05 19:22 80m -11 / +5 SQ8AZT -3 / +6 8 ✓ Full exchange observed
10-05 19:19 80m -4 / -3 SQ5ANT +7 / - 5 ✓ Full exchange observed
10-04 13:28 40m -3 / - SH6RES - / -4 3 ✓ Closing fragment
10-04 13:27 40m -2 / -4 UT7EV -11 / -8 5 ✓ Full exchange observed
10-04 13:25 40m 0 / - G3VCQ -14 / -23 4 ✓ Closing observed
10-04 13:24 40m -1 / - SP3NJ - / - 3 Partial capture
10-04 13:22 40m -2 / -11 EW8R -2 / +6 5 ✓ Full exchange observed
10-04 13:21 40m -2 / -4 SV2HTW -5 / +10 5 ✓ Full exchange observed
10-04 13:19 40m -2 / +1 SP8RPA -4 / - 5 ✓ Full exchange observed
10-03 20:26 80m - / -1 SP7VCL +13 / - 3 ✓ Closing fragment
10-03 20:06 80m - / -21 G6GN -6 / - 3 Partial capture
10-03 16:20 40m -1 / +2 DK6WS -8 / - 3 ✓ Closing observed
10-03 16:15 40m -2 / - DD4VA - / +3 3 ✓ Closing fragment
10-02 20:23 80m -10 / -11 SP7VCL +2 / - 5 Partial capture

Recent FT8 messages decoded at SO8OO

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

60m 
UTC    dB Audio  Message
192945 -13 2433  SP7ROM HB9HQX RR73
193045  -3 2090  SP7ROM F1TXI -10 (x2)
193145  -6 1030  SP7ROM IK5EEA JN53 (x2)
193445 -19  900  SP7ROM OH6EPM -13
193545  +3 2210  SP7ROM PI4DX -14
193915 -16  757  SP7ROM F5JAE RR73
194015  -6 1036  SP7ROM DM1SV -03 (x2)
194200 -15 1275  SP7ROM R3ZBD -15 (x2)
194330  -3  959  SP7ROM DH4PAP +00 (x2)
194700 -19 1806  SP7ROM S56DS RR73
80m 
UTC    dB Audio  Message
192845 -10 1775  DG4ST SP7ROM R-13 (x2)
192945 -18 1775  E73X SP7ROM JO91
193000  -1  543  SP7ROM E73X -12 (x2)
193045  -9 1775  E73X SP7ROM R-08 (x2)
185915  -2 1775  SP7VCL SP7ROM JO91 (x5)
190500  +1 1774  SP7ROM SP7VCL -09 (x3)
40m 
UTC    dB Audio  Message
132845  -2 1060  SH6RES SP7ROM JO91 (x3)
201245  -1 1998  SP7ROM IU1SCQ -11 (x4)
192700  +1  478  SP7ROM DM8ITZ -15 (x2)
201645  -6  732  SP7ROM YT3IN -14
195145  -5 2170  SP7ROM YO4NT -10 (x2)
200445 -10  301  SP7ROM RA6OY R-09
180600  -6 2256  SP7ROM IZ5IIN -03 (x2)
160m 
UTC    dB Audio  Message
193445  -8 2054  SP7ROM SQ2HEB -18 (x3)
201430  +8 1963  SP7ROM SQ100PKP -14
201800  -4 2232  SP7ROM SP100PKP -17 (x2)
192800  +6 1680  SP7ROM SO100PKP -17
200245 -16 1362  SP7ROM DG2KW -23 (x2)
202915  -3 2192  SP7ROM SQ9PBV -11 (x2)
203500 +19  887  SP7ROM HF100PKP -07
202200  +6 1163  SP7ROM RR73; DH6MBR <...> -12
204100  +5 1644  SP7ROM 3Z100PKP -19
204130 +10 1644  SP7ROM RR73; UR5TMT <...> -14
10m 
UTC    dB Audio  Message
095630 -12 2358  SP7ROM ON5RZ JO21 (x5)
100600  -9  932  SP7ROM DN9JGL -16 (x4)
112715  -6 2704  SP7ROM EA3AKY -11 (x4)
130100 -15 1589  SP7ROM 7Q7CT +00 (x2)
20m 
UTC    dB Audio  Message
065515  -4 2103  SP7ROM II7MGBT -09
100915 -12 1651  SP7ROM DH0YAH -16 (x5)
132445 -11 1869  SP7ROM II7MGMU -16
180615 -17 1418  SP7ROM LZ6C -11
174630 -12 2582  SP7ROM IR7MGGC -01
113100 -10 1092  SP7ROM RR73; OK1SN <...> +08
113700  -1 2103  SP7ROM II7MGBT +04
143345  +1 2413  SP7ROM M7YVZ -05 (x4)

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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