SP5ROM — 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: JO92

Receiver-side FT8 activity involving SP5ROM, decoded by SO8OO in southeastern Poland. 3,643 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 59 UTC dates in the available aggregate history. Observed between 2026-06-07 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 3,643 FT8 messages attributed to SP5ROM as the transmitting token by decoded message structure across 59 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (91%), followed by 80 m (6%) and 20 m (3%). Most decodes (55%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11.9 dB.

Overview

3,643
Messages attributed
59
UTC dates decoded
388
Active 15-min windows
-11.9 dB
Estimated median S/N

Bands

80m · 213 40m · 3,318 20m · 112
First attributed message: 2026-06-07
Last attributed message: 2026-10-23 17:14 UTC

Observed FT8 message patterns

Attributed sample
3,643 messages
Active dates
59 UTC dates
Estimated median S/N
-11.9 dB
Estimated 10th-90th percentile
-20 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,054, moderate (-15 to -9 dB) 1,433, strong (≥ -8 dB) 1,156.

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 SP5ROM 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 SP5ROM

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
JO92 · 2,162 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
345 km (approx.)
Last such locator decoded
2026-10-23 17:14 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 UTCBandSP5ROM S/NCounterpartCounterpart S/NMsgsCapture
10-23 18:57 80m - / -7 DG3YEV +11 / - 5 ✓ Closing fragment
10-23 18:49 80m - / - SP4WJ -4 / - 4 Partial capture
10-23 18:40 80m - / -3 SQ5CZJ -12 / - 2 Partial capture
10-23 18:31 80m - / - SQ5CZJ -2 / - 3 Partial capture
10-23 18:05 80m - / -12 SQ9OUG +16 / - 3 ✓ Closing fragment
10-23 18:02 80m - / -16 SP5DFK/QRP 0 / - 2 Partial capture
10-23 17:57 80m - / 0 OM3CND +8 / - 2 ✓ Closing fragment
10-23 17:53 80m - / -13 SP4OIK -12 / - 2 Partial capture
10-23 17:51 80m - / -2 SP4VIT -12 / - 3 ✓ Closing fragment
10-23 17:47 80m - / -13 SP4OIK -9 / - 7 Partial capture
10-23 17:41 80m - / - OM3CND +16 / - 4 Partial capture
10-23 17:39 80m - / -5 SQ6JFJ +10 / - 6 ✓ Closing fragment
10-23 17:38 80m - / - SP4WJ -1 / - 12 Partial capture
10-23 17:38 80m - / -17 SP5IDR +5 / - 3 ✓ Closing fragment
10-23 17:37 80m - / - SQ5NO -6 / - 2 Partial capture
10-23 17:00 80m - / -12 SQ1BVG -3 / - 3 ✓ Closing fragment
10-23 16:52 80m - / - F6EWW -6 / - 2 Partial capture
10-23 16:46 80m -8 / -23 IQ4JO +7 / - 7 ✓ Closing observed
10-23 16:20 80m - / - IQ4JO +2 / - 3 Partial capture
10-23 16:13 80m -8 / -12 OK1VKX +13 / - 5 ✓ Closing observed
10-23 16:11 80m - / - IQ4JO +3 / - 2 Partial capture
10-23 16:11 80m - / -7 OE5DML +12 / - 4 ✓ Closing fragment
10-23 15:15 40m - / - SP8JRG +8 / - 3 Partial capture
10-23 14:52 40m -8 / -7 R7LC -3 / +3 4 ✓ Full exchange observed
10-23 14:50 40m -9 / -3 DD0IPA -16 / - 3 ✓ Closing observed
10-23 14:48 40m -10 / -13 F6DJW -14 / -6 3 ✓ Closing observed
10-23 14:39 40m - / - SP5IDR -8 / - 3 Partial capture
10-23 14:39 40m - / +5 I4BUQ -5 / - 11 ✓ Closing fragment
10-23 14:26 40m - / -16 SP6DOL -14 / - 2 ✓ Closing fragment
10-23 14:24 40m -4 / -4 DK8HC/P -10 / -3 4 ✓ Full exchange observed
10-23 14:22 40m - / -10 IN3ETT +6 / - 2 Partial capture
10-23 14:18 40m - / -4 OK2CNI +2 / - 3 ✓ Closing fragment
10-23 14:15 40m -4 / -17 IN3WZS -7 / 0 7 ✓ Full exchange observed
10-23 14:15 40m -7 / -9 RA4CPA -14 / -6 4 ✓ Full exchange observed
10-23 14:12 40m -8 / -5 ON1BH -11 / +2 3 ✓ Full exchange observed
10-23 14:10 40m -9 / -6 DJ2VA -6 / +2 5 ✓ Full exchange observed
10-23 05:54 80m - / - SP8JRG +10 / - 2 Partial capture
10-23 05:32 80m -12 / -14 DO1FZL +3 / -15 10 Partial capture
10-23 05:22 80m - / - F1MXE -21 / - 2 Partial capture
10-23 05:22 80m - / -20 YO5ODL -4 / - 8 ✓ Closing fragment
10-23 05:18 80m -23 / +1 OK2CNI +4 / 0 5 ✓ Full exchange observed
10-23 05:15 80m - / -22 ON1JP -24 / - 2 Partial capture
10-23 05:13 80m -20 / +4 DA6DN -5 / -6 4 ✓ Full exchange observed
10-23 05:10 80m -18 / -11 DF4WQ -6 / -18 5 Partial capture
10-23 05:09 80m - / -5 DO1OAS -7 / - 3 ✓ Closing fragment
10-23 04:55 80m -12 / -16 G0BLB -13 / -3 7 ✓ Full exchange observed
10-23 04:55 80m - / -4 IZ8VYU -4 / - 3 ✓ Closing fragment
10-23 04:50 80m - / - F1PSX -23 / - 5 Partial capture
10-23 04:48 80m - / - F1ICS +10 / - 2 Partial capture
10-23 04:47 80m - / -11 HA5UK +14 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
183130  -4 1016  SP5ROM SQ5CZJ JO92 (x5)
184430 -14 1014  SP5ROM SP4WJ KO03 (x5)
185700 +13  832  SP5ROM DG3YEV JN68 (x5)
40m 
UTC    dB Audio  Message
145030 -18 1947  SP5ROM DD0IPA R-03
145045  -9 1051  DD0IPA SP5ROM RR73
145115  -5 1051  CQ SP5ROM JO92 (x3)
145230  -3 1051  SP5ROM R7LC LN08
145245  -8 1051  R7LC SP5ROM +03
145300  -3 1051  SP5ROM R7LC R-07 (x2)
145415  -9 1051  CQ SP5ROM JO92 (x3)
151545  +7  670  SP5ROM SP8JRG KO10 (x3)
20m 
UTC    dB Audio  Message
182145 -14 1393  SP5ROM CR5VP 73
070000  -9 2198  SP5ROM SQ1QAT JO74 (x2)
144930 -17 1290  SP5ROM II7MGBR R-07
145230 -14 1503  SP5ROM UA6AOP R-13
145230  -2 2212  SP5ROM R6LQU KN97 (x3)
044900 -13 1570  SP5ROM II7MGXX R-13
045030  -3 1572  SP5ROM EA5JHD +02 (x3)
045315 -13 1137  SP5ROM II7MGLE R+08
050345 -14  978  SP5ROM II7MGMU R-13
173730  -4 2104  SP5ROM II7MGBT R+01

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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