WP4RRF — 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: Puerto Rico Most frequent locator attributed to this token: FK68

Receiver-side FT8 activity involving WP4RRF, decoded by SO8OO in southeastern Poland. 42 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-25 and 2026-10-08.

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 42 FT8 messages attributed to WP4RRF as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (38%), followed by 40 m (33%) and 80 m (29%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (67%); the estimated median was -18 dB.

Overview

42
Messages attributed
5
UTC dates decoded
10
Active 15-min windows
-18 dB
Estimated median S/N

Bands

80m · 12 40m · 14 20m · 16
First attributed message: 2026-06-25
Last attributed message: 2026-10-08 01:00 UTC

Observed FT8 message patterns

Attributed sample
42 messages
Active dates
5 UTC dates
Estimated median S/N
-18 dB
Estimated 10th-90th percentile
-24 to -11 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 28, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 1.

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 WP4RRF 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 WP4RRF

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
FK68 · 15 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,360 km (approx.)
Last such locator decoded
2026-10-08 00:57 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 UTCBandWP4RRF S/NCounterpartCounterpart S/NMsgsCapture
10-20 01:30 40m - / -15 G1LQT -16 / - 7 Partial capture
10-20 01:30 40m - / -18 F1PBZ +5 / - 4 Partial capture
10-20 01:24 40m - / -4 HB9TIH +12 / - 4 ✓ Closing fragment
10-19 00:11 40m - / - DJ7TO -5 / - 3 Partial capture
10-08 00:58 40m -10 / - UA4CPM -11 / - 2 ✓ Closing observed
10-07 01:50 40m - / -5 CT3MD -13 / - 3 Partial capture
10-07 01:04 40m - / +5 KP4PI -6 / - 2 ✓ Closing fragment
10-07 00:38 40m - / -24 UA4FKT -8 / - 4 ✓ Closing fragment
10-07 00:31 40m -23 / -9 C5R -21 / -20 10 Partial capture
09-19 03:00 40m -13 / - R2WAF - / - 2 ✓ Closing fragment
09-19 02:43 80m - / - DD8BA -10 / - 4 Partial capture
09-17 00:49 40m - / - UA4FKT +14 / - 4 Partial capture
09-11 01:28 40m - / -13 CR7BRV -5 / - 2 ✓ Closing fragment
08-26 01:45 20m -21 / - EX8ABC -23 / - 4 ✓ Closing observed
08-26 01:40 20m -17 / - HA1BF - / -7 3 ✓ Closing fragment
08-26 01:37 20m -14 / - <...> - / -16 3 Partial capture
08-26 01:29 20m -16 / - UN7PNF - / -9 2 ✓ Closing fragment
08-26 01:27 20m -11 / - UT3RS - / -13 2 ✓ Closing fragment
08-16 01:14 80m - / -23 UA4FKT +5 / - 5 ✓ Closing fragment
07-29 00:04 40m - / - DM2AB -4 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
012445 +14 2780  WP4RRF HB9TIH JN36 (x3)
012845 -23 1539  WP4RRF WA8CAC -12
013015  +5 2690  WP4RRF F1PBZ -18
013045 -18 1645  WP4RRF G1LQT -15
013045  +5 2689  WP4RRF F1PBZ -18
013115 -14 1645  WP4RRF G1LQT -15
013115 +10 2689  WP4RRF F1PBZ -18
013145 -19 1645  WP4RRF G1LQT -15
013145  +0 2690  WP4RRF F1PBZ -18
013215 -19 1645  WP4RRF G1LQT -15 (x4)
80m 
UTC    dB Audio  Message
011430  +3 1004  WP4RRF UA4FKT LO23 (x5)
024330 -24 2103  HI3T WP4RRF R-24
024330  -7 2278  WP4RRF DD8BA JO42 (x4)
014430  +7 1071  WP4RRF UR5SG KN28
20m 
UTC    dB Audio  Message
012815  -8 2242  UT3RS WP4RRF RR73
012915 -15 2017  UN7PNF WP4RRF R-09 (x2)
013100 -16 1250  5N0YEN WP4RRF FK68
013315 -12  831  <...> WP4RRF FK68 (x4)
014045 -15 1349  HA1BF WP4RRF FK68 (x3)
014500 -18 1760  EX8ABC WP4RRF FK68 (x3)
014715 -23 1758  WP4RRF EX8ABC RR73

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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