KM4RL — 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: United States Most frequent locator attributed to this token: EL88

Receiver-side FT8 activity involving KM4RL, decoded by SO8OO in southeastern Poland. 60 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 12 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-06.

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 60 FT8 messages attributed to KM4RL as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (47%), followed by 40 m (32%) and 80 m (22%). Most decodes (95%) fell within the six-hour window 20:00-02:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

60
Messages attributed
12
UTC dates decoded
22
Active 15-min windows
-13 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-11-06 00:21 UTC

Observed FT8 message patterns

Attributed sample
60 messages
Active dates
12 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-20 to -8 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 18, moderate (-15 to -9 dB) 35, strong (≥ -8 dB) 7.

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 KM4RL

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
EL88 · 30 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,589 km (approx.)
Last such locator decoded
2026-11-06 00:21 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 UTCBandKM4RL S/NCounterpartCounterpart S/NMsgsCapture
11-06 00:17 80m -16 / - K0GD - / - 3 ✓ Closing fragment
11-06 00:15 80m -13 / -20 F4EGM +4 / -13 7 ✓ Full exchange observed
11-06 00:14 80m -11 / -12 PA3FPQ +2 / -12 5 ✓ Full exchange observed
11-06 00:12 80m -14 / - HI8ML - / -7 4 ✓ Closing fragment
11-05 23:51 80m - / -22 OM2WQ +8 / - 11 ✓ Closing fragment
11-05 23:17 60m - / -22 SP2EWQ -12 / - 3 ✓ Closing fragment
11-05 23:08 60m - / -20 DL3YEM -1 / - 5 ✓ Closing fragment
11-05 01:30 80m - / -24 SP5AA +14 / - 2 ✓ Closing fragment
11-04 00:39 40m - / -8 DL3YEE 0 / - 2 Partial capture
11-02 23:03 40m - / -7 EA1Y -16 / - 2 ✓ Closing fragment
10-31 01:54 40m - / -14 CT7BRV -12 / - 2 ✓ Closing fragment
10-29 23:17 160m - / -17 OH0Z +6 / - 3 Partial capture
10-27 23:59 40m - / -16 IK2UEC -14 / - 2 ✓ Closing fragment
10-27 00:31 60m - / -8 EI6IZ +2 / - 2 ✓ Closing fragment
10-27 00:13 80m - / -12 F1PBZ +16 / - 2 ✓ Closing fragment
10-27 00:11 80m - / -20 DO5HOK +2 / - 3 Partial capture
10-27 00:07 80m - / -3 K1ZZ -13 / - 2 ✓ Closing fragment
10-23 23:42 60m - / -18 LX1JX +8 / - 2 ✓ Closing fragment
10-23 00:48 60m - / -18 EA8AE -9 / - 3 ✓ Closing fragment
10-19 22:28 40m - / -11 CT7BRV -14 / - 2 ✓ Closing fragment
10-14 22:34 40m - / -12 F8BJI +2 / - 2 ✓ Closing fragment
10-14 22:30 40m - / -16 SV5BYP -14 / - 2 Partial capture
10-09 01:34 60m - / -9 CT3MD -6 / - 2 ✓ Closing fragment
10-09 01:31 60m - / - CT3MD -6 / - 2 Partial capture
10-05 00:55 40m - / -2 HB9EFK +10 / - 2 ✓ Closing fragment
10-03 01:36 40m -7 / - W0RY - / -17 3 ✓ Closing fragment
10-03 01:34 40m -20 / - W8LHR - / - 2 ✓ Closing fragment
10-03 01:31 40m -14 / -20 Z61DX -12 / -12 3 Partial capture
10-03 00:38 40m - / -19 Z61DX -3 / - 8 Partial capture
10-03 00:21 40m -16 / -5 G3TKT -3 / -14 7 ✓ Full exchange observed
10-02 23:50 80m - / -25 DK9WI +11 / - 3 ✓ Closing fragment
10-02 22:01 40m - / -16 M0MLS -12 / - 2 ✓ Closing fragment
10-02 01:34 60m - / -7 PA4PA +4 / - 2 ✓ Closing fragment
10-02 01:26 40m -14 / - VA6DJ - / - 2 Partial capture
10-02 01:13 40m -10 / -23 IW2MYH +8 / - 4 ✓ Closing observed
09-30 01:42 80m - / -19 UT7EV +11 / - 3 ✓ Closing fragment
09-30 01:25 40m - / - RT3K -9 / - 2 Partial capture
09-30 00:56 40m - / -18 SV9QWC -20 / - 2 ✓ Closing fragment
09-28 23:27 60m - / -17 F4FPR +2 / - 4 ✓ Closing fragment
09-28 00:46 40m - / -5 PD1DBL -6 / - 2 ✓ Closing fragment
09-13 00:48 80m - / -24 SP6JIU +24 / - 2 ✓ Closing fragment
09-09 00:47 40m - / -24 5Z4VJ -5 / - 4 ✓ Closing fragment
09-09 00:40 40m - / -15 EC5M -9 / - 2 ✓ Closing fragment
09-08 23:49 40m - / -22 A99AA -4 / - 2 Partial capture
09-08 23:45 40m -12 / - KM4S - / - 3 Partial capture
08-28 20:16 20m -20 / - ER3CT - / -8 2 Partial capture
08-28 19:59 20m -10 / - W5ELD - / - 3 Partial capture
08-28 19:55 20m -10 / - AA4AZ - / - 2 Partial capture
08-11 12:29 20m - / -18 DH9DR -20 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
001430  -1  457  KM4RL PA3FPQ R-12
001445 -11 2763  PA3FPQ KM4RL RR73
001500  +3 2762  KM4RL SP8HDC KO00
001500  +7  457  KM4RL PA3FPQ 73
001500  +1  578  KM4RL F4EGM JN29
001515 -13 2762  F4EGM KM4RL -13 (x3)
001715 -14 2722  K0GD KM4RL EL88
001730  +5 2903  KM4RL F4EGM R-20
001745 -15 2722  K0GD KM4RL EL88 (x2)
001900  +7 2903  KM4RL F4EGM R-20 (x2)
002115 -24 2723  EG1PR KM4RL EL88
60m
UTC    dB Audio  Message
004800 -10 1309  KM4RL EA8AE -18 (x3)
234230 +11 2789  KM4RL LX1JX -18 (x2)
003100  +4  460  KM4RL EI6IZ -08 (x2)
230815  +1  908  KM4RL DL3YEM JO41 (x5)
231700 -14  968  KM4RL SP2EWQ JO93 (x3)
40m
UTC    dB Audio  Message
223415  +6 2911  KM4RL F8BJI -12 (x2)
222815 -13  828  KM4RL CT7BRV -11 (x2)
235930 -13 1488  KM4RL IK2UEC -16 (x2)
000330 -14 2109  KM4RL MM0DXL IO75
015445 -16 2190  KM4RL CT7BRV -14 (x2)
225745 -12 1633  KM4RL EA8BIA -14
230300 -17  983  KM4RL EA1Y -07 (x2)
223215 -13  792  KM4RL HA7XL -15
003930  +4 2635  KM4RL DL3YEE -08 (x2)
160m
UTC    dB Audio  Message
231745  +9 2071  KM4RL OH0Z -17 (x3)
20m
UTC    dB Audio  Message
122900 -20 1692  KM4RL DH9DR -18 (x2)
204330 -10 2614  KM4RL OK2CNI -12
195030  -3 1920  KM4RL F4HSB -08
224700 -15 2472  KJ3LLY KM4RL 73
195515  -8 2683  AA4AZ KM4RL EL88 (x2)
195930  -9 2684  W5ELD KM4RL EL88 (x3)
200100  -3 2684  KC9JJS KM4RL EL88
201515 -23 1190  SP3TOT KM4RL 73
201645 -20 1180  ER3CT KM4RL -08 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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