SP9RM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO90

Receiver-side FT8 activity involving SP9RM, decoded by SO8OO in southeastern Poland. 96 FT8 messages attributed to this token as transmitter, on 60m, 40m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-19.

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 96 FT8 messages attributed to SP9RM as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (69%), followed by 40 m (31%). Several six-hour UTC windows tied for the largest share (77%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (78%); the estimated median was -1 dB.

Overview

96
Messages attributed
11
UTC dates decoded
16
Active 15-min windows
-1 dB
Estimated median S/N

Bands

60m · 66 40m · 30
First attributed message: 2026-06-06
Last attributed message: 2026-09-19 22:16 UTC

Observed FT8 message patterns

Attributed sample
96 messages
Active dates
11 UTC dates
Estimated median S/N
-1 dB
Estimated 10th-90th percentile
-18 to +7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 75.

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 SP9RM 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 SP9RM

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
JO90 · 56 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
208 km (approx.)
Last such locator decoded
2026-09-19 22:16 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 UTCBandSP9RM S/NCounterpartCounterpart S/NMsgsCapture
09-19 22:13 60m -18 / 0 PF7DKW +1 / +3 5 ✓ Full exchange observed
09-19 22:09 60m -19 / -4 J48S -2 / - 4 ✓ Closing observed
09-09 21:52 60m -22 / +2 4X1YA -8 / - 3 ✓ Closing observed
09-07 17:22 10m - / -16 CE2SV -4 / - 2 ✓ Closing fragment
08-31 20:52 60m - / - G8OO +8 / - 9 Partial capture
08-31 20:49 60m +4 / +3 ER1CW -8 / 0 7 ✓ Full exchange observed
08-19 22:01 60m -8 / - HB9IOI - / - 2 Partial capture
08-19 21:59 60m -3 / +4 OJ0JR +2 / +4 5 ✓ Full exchange observed
08-18 20:21 60m +10 / - OJ0YL - / - 2 Partial capture
08-18 20:20 60m +7 / - SN1A -4 / +7 4 ✓ Closing observed
08-16 13:19 40m -19 / - <...> - / - 2 Partial capture
08-16 10:24 40m -4 / +7 SQ8LE -11 / +6 5 ✓ Full exchange observed
08-16 10:21 40m -10 / - DM5R/P - / -12 3 ✓ Closing fragment
08-16 10:19 40m -5 / - <...> - / -5 2 Partial capture
08-16 10:16 40m -4 / - SQ9HA -13 / - 8 ✓ Full exchange observed
08-14 21:42 60m -16 / -16 SP7ROH -6 / -18 4 ✓ Full exchange observed
08-14 21:40 60m -16 / -6 S56EPX -10 / +2 5 ✓ Full exchange observed
08-14 21:37 60m -1 / 0 SE7LH -8 / +8 5 ✓ Full exchange observed
08-14 15:48 60m +2 / +4 SP8AWL +1 / - 5 ✓ Full exchange observed
07-03 19:39 60m +7 / - DH8BQA +6 / -12 5 ✓ Full exchange observed
07-03 19:36 60m +3 / - <...> - / +5 2 Partial capture
07-03 19:31 60m +4 / 0 SP9WUJ 0 / - 7 ✓ Closing observed
07-03 19:30 60m +7 / - ER1KW -12 / -13 4 ✓ Closing observed
06-27 19:09 10m - / -8 EA8UP -12 / - 2 ✓ Closing fragment
06-25 21:31 60m - / - DL9KM -14 / - 8 Partial capture
06-25 21:28 60m +3 / - IU2SMI -12 / - 4 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

60m 
UTC    dB Audio  Message
220015 -17 2430  SP9RM IU2VUZ JN45
220100 -18 2083  SP9RM VE1YX FN74
220915 -18 2081  J48S SP9RM JO90
221000  -2  584  SP9RM J48S -04 (x2)
221045 -20 2081  J48S SP9RM 73
221115 -19 2081  PA1AZ SP9RM JO90
221145 -18 2081  CQ SP9RM JO90 (x2)
221330 -17 2081  PF7DKW SP9RM JO90
221345  +1 1996  SP9RM PF7DKW +00
221400 -16 2081  PF7DKW SP9RM R+03
221415  +1 1996  SP9RM PF7DKW RR73
221430 -22 2081  PF7DKW SP9RM 73
221600 -18 2081  SQ2WHH SP9RM JO90
10m 
UTC    dB Audio  Message
190915 -10 1777  SP9RM EA8UP -08 (x2)
172245  -3 2596  SP9RM CE2SV -16 (x2)
40m 
UTC    dB Audio  Message
101815  -7 2086  SQ9HA SP9RM JO90 (x3)
101945  -3 2086  <...> SP9RM JO90 (x2)
102115  -8 2086  DM5R/P SP9RM JO90 (x3)
102400  -1 2099  SQ8LE SP9RM JO90
102415 -13 2215  SP9RM SQ8LE +07
102430  -6 2099  SQ8LE SP9RM R+06
102445  -9 2215  SP9RM SQ8LE RR73
102500  -5 2099  SQ8LE SP9RM 73
131915 -19 1933  <...> SP9RM JO90 (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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee