R4HLO — 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: European Russia Most frequent locator attributed to this token: LO43

Receiver-side FT8 activity involving R4HLO, decoded by SO8OO in southeastern Poland. 4,173 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 88 UTC dates in the available aggregate history. Observed between 2026-06-17 and 2026-10-22.

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 4,173 FT8 messages attributed to R4HLO as the transmitting token by decoded message structure across 88 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (62%), followed by 20 m (20%) and 40 m (18%). Most decodes (56%) fell within the six-hour window 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16.7 dB.

Overview

4,173
Messages attributed
88
UTC dates decoded
875
Active 15-min windows
-16.7 dB
Estimated median S/N

Bands

First attributed message: 2026-06-17
Last attributed message: 2026-10-22 18:16 UTC

Observed FT8 message patterns

Attributed sample
4,173 messages
Active dates
88 UTC dates
Estimated median S/N
-16.7 dB
Estimated 10th-90th percentile
-23 to -9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2,387, moderate (-15 to -9 dB) 1,425, strong (≥ -8 dB) 361.

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 R4HLO

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
LO43 · 2,739 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,903 km (approx.)
Last such locator decoded
2026-10-03 02:59 UTC

Other locator fields attributed to this token: LO36 (1).

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 UTCBandR4HLO S/NCounterpartCounterpart S/NMsgsCapture
10-22 18:15 40m -19 / - PD4RJ - / -20 2 Partial capture
10-19 02:26 80m -17 / - SV3CEZ - / -24 5 Partial capture
10-19 01:52 80m -13 / - HA7JDU - / -14 7 Partial capture
10-19 00:33 80m -18 / - UA9FLI 0 / -20 9 Partial capture
10-18 22:27 80m -20 / - UA0SCF - / -15 2 Partial capture
10-18 22:07 80m -21 / -15 SM7TZK +1 / -15 16 Partial capture
10-18 21:53 80m -21 / - OH7ML - / -15 4 Partial capture
10-18 21:48 80m -22 / - UN8PC - / - 2 Partial capture
10-18 21:42 80m -21 / - UN8PC - / -18 7 Partial capture
10-18 21:34 80m -21 / -13 UA6LQZ -6 / -10 12 Partial capture
10-18 21:17 80m - / -9 R2BIU -8 / - 2 ✓ Closing fragment
10-18 21:14 80m -20 / - UA3IDQ - / - 2 ✓ Closing fragment
10-18 21:02 80m - / -7 UA3ALY +8 / - 2 ✓ Closing fragment
10-18 20:59 80m -20 / -16 TF4M -6 / - 3 ✓ Closing observed
10-18 20:39 80m -18 / - SQ9MSD - / -20 2 Partial capture
10-18 20:29 40m -15 / - 9A5SPC - / -13 5 Partial capture
10-18 20:26 40m -16 / - HB9EOT - / -10 2 Partial capture
10-18 20:25 40m -12 / - IZ6ASI - / -18 2 Partial capture
10-18 19:25 40m - / -20 IU3FVJ -12 / - 2 ✓ Closing fragment
10-18 19:15 40m - / -16 M6YJG -14 / - 2 Partial capture
10-18 18:56 40m - / -8 IN3KSO -2 / - 3 ✓ Closing fragment
10-18 05:32 40m - / -4 RN3PD -13 / - 2 ✓ Closing fragment
10-17 01:45 80m - / - R2HH +4 / - 4 Partial capture
10-17 01:45 80m -10 / -10 SP1IWC +11 / -7 6 ✓ Full exchange observed
10-17 01:41 80m -15 / - G4RCV - / -19 3 Partial capture
10-17 01:36 80m -13 / - G4RCV - / -19 6 Partial capture
10-17 00:43 80m -12 / +9 R4OF +4 / -1 6 ✓ Full exchange observed
10-17 00:36 80m -12 / - PG7R - / -21 12 Partial capture
10-17 00:30 80m -13 / - DL9KV +7 / -18 4 ✓ Closing observed
10-17 00:17 80m -11 / - DO8JB - / -20 11 Partial capture
10-17 00:10 80m -9 / -7 UK8FF -16 / -7 4 ✓ Full exchange observed
10-16 23:20 80m -4 / - R2BPS - / -14 2 ✓ Closing fragment
10-16 23:16 80m -6 / -21 G6PZ +8 / -11 9 ✓ Full exchange observed
10-16 22:34 80m -10 / -17 DA6OOM -7 / -21 5 ✓ Full exchange observed
10-16 22:31 80m -10 / - S55X - / -22 3 Partial capture
10-16 22:27 80m -9 / - S55X - / -22 3 Partial capture
10-16 22:18 80m -10 / - BI8FRF - / -20 9 Partial capture
10-16 22:17 80m -11 / - SA4DDG - / -19 3 Partial capture
10-16 22:12 80m -18 / - SA4DDG - / -19 3 Partial capture
10-16 22:07 80m - / -15 LA9CAA -10 / - 2 ✓ Closing fragment
10-16 22:03 80m -12 / - DO8PAT - / - 2 Partial capture
10-16 21:54 80m -10 / - DO8PAT - / -23 3 Partial capture
10-16 21:47 80m -17 / -6 OH8WW +7 / -5 4 ✓ Full exchange observed
10-16 21:16 80m -20 / - JE6WOQ - / -10 2 Partial capture
10-16 21:08 80m -21 / - DM3ER - / -17 3 Partial capture
10-16 21:05 80m -13 / - YT9A - / -11 3 Partial capture
10-16 20:54 80m -10 / - HA0HV - / -17 12 Partial capture
10-16 20:52 80m -12 / - YO2LIM +4 / -16 5 ✓ Full exchange observed
10-16 20:47 80m -9 / -19 DO6YL -5 / -18 20 Partial capture
10-16 20:35 80m -11 / -21 IV3IHV +6 / - 3 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
192545 -12 1358  R4HLO IU3FVJ 73
202515 -13 2265  IZ6ASI R4HLO -18 (x2)
202645 -11 2265  HB9EOT R4HLO -10 (x2)
202830 -12 2265  I4VJC R4HLO -14
202930 -18 2265  9A5SPC R4HLO -13 (x4)
203215 -15  767  R4HLO ON4KBU JN29
203230 -17 2265  9A5SPC R4HLO -13 (x2)
181515 -19 2265  PD4RJ R4HLO -20 (x2)
80m
UTC    dB Audio  Message
003645  +3  689  R4HLO UA9FLI R+11 (x2)
015215 -14 2230  HA7JDU R4HLO -14 (x7)
022600 -20 2230  SV3CEZ R4HLO -24 (x5)
024215 -17 2230  R6ZB R4HLO RRR
160m
UTC    dB Audio  Message
232515  -5 1092  R4HLO UA6AR LN05
173800  -4 1241  R4HLO R4FDK -18 (x2)
190400  +6 1141  R4HLO DK7ZT -11 (x5)
20m
UTC    dB Audio  Message
051030 -21 1811  UA9UDO R4HLO 73
052030 -24 1752  BH1JPU R4HLO LO43
143130 -17 1229  BG3ISK R4HLO LO43
143715 -20 1613  BA4VDC R4HLO LO43 (x2)
151515 -22 1853  R0AJQ R4HLO LO43
152215 -16 1215  EX7DY R4HLO LO43
153400 -19 1553  JJ0UAQ R4HLO LO43 (x3)
155915  +1 1061  R4HLO RU6FK -13
165245 -19 1294  BG5JGG R4HLO LO43
165545 -16 1834  BH4BNQ R4HLO LO43
170145 -21 1587  BD8FWI R4HLO LO43
181315 -23 1835  BH4BNQ R4HLO LO43
60m
UTC    dB Audio  Message
214930  +5 2060  R4HLO LA0FA JO59

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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