PF1H — 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: Netherlands Most frequent locator attributed to this token: JO21

Receiver-side FT8 activity involving PF1H, decoded by SO8OO in southeastern Poland. 405 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 28 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-10-19.

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 405 FT8 messages attributed to PF1H as the transmitting token by decoded message structure across 28 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (40%), followed by 20 m (32%) and 10 m (29%). Most decodes (68%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (77%); the estimated median was -3 dB.

Overview

405
Messages attributed
28
UTC dates decoded
87
Active 15-min windows
-3 dB
Estimated median S/N

Bands

First attributed message: 2026-06-10
Last attributed message: 2026-10-19 19:53 UTC

Observed FT8 message patterns

Attributed sample
405 messages
Active dates
28 UTC dates
Estimated median S/N
-3 dB
Estimated 10th-90th percentile
-14 to +6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 68, strong (≥ -8 dB) 313.

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 PF1H

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
JO21 · 320 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,192 km (approx.)
Last such locator decoded
2026-10-19 19:53 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 UTCBandPF1H S/NCounterpartCounterpart S/NMsgsCapture
10-19 19:53 40m 0 / - UK8OM - / - 2 Partial capture
10-19 19:51 40m -1 / - EX7CQ - / - 3 Partial capture
10-19 19:45 40m -4 / - UK8OM - / - 2 Partial capture
10-19 19:41 40m -4 / - EX7CQ - / - 5 Partial capture
10-19 19:39 40m -1 / - LX1JH +9 / - 3 ✓ Closing observed
10-19 19:35 40m -5 / - EX7CQ - / - 4 Partial capture
10-19 19:33 40m -3 / - OH1TEV -8 / -6 4 Partial capture
10-19 19:32 40m -7 / - EX7CQ - / - 2 Partial capture
10-19 19:29 40m -1 / - UK8OM - / - 4 Partial capture
10-19 19:27 40m 0 / - JY5IB - / - 3 Partial capture
10-19 19:26 40m -3 / - EX7CQ - / - 3 Partial capture
10-16 15:54 40m - / -2 DG9ZL -10 / - 3 ✓ Closing fragment
10-16 15:53 40m - / -7 DH5IS -5 / - 2 Partial capture
10-16 15:51 40m -16 / - BG0FQU - / - 2 Partial capture
10-07 06:07 40m - / -16 R2SN -6 / - 2 ✓ Closing fragment
10-07 06:01 40m -4 / - C5R - / -19 3 Partial capture
09-05 19:04 40m +2 / - F6FHZ - / -8 2 ✓ Closing fragment
09-05 19:01 40m +2 / - Z62NS - / - 2 Partial capture
09-05 19:00 40m +3 / - DS5USH - / - 2 Partial capture
09-05 18:58 40m -2 / - EX7CQ - / - 2 Partial capture
08-26 18:53 40m -2 / - YT1LOG - / -19 3 ✓ Closing fragment
08-26 18:50 40m +1 / - LX1NO - / - 3 Partial capture
08-26 18:49 40m 0 / - RM0F - / - 3 Partial capture
08-25 20:40 40m -2 / - VJ6X - / - 2 Partial capture
08-25 20:39 40m -2 / - YT2FA - / - 2 Partial capture
08-25 20:35 40m +4 / - EA1CQ -1 / +1 3 ✓ Closing observed
08-25 20:31 40m +4 / - JA5MHD -14 / -6 6 ✓ Closing observed
08-25 19:39 40m -1 / - JR1XIS - / -10 3 ✓ Closing fragment
08-25 19:38 40m 0 / -4 DL9KM +3 / +2 5 ✓ Full exchange observed
08-25 19:37 40m -2 / -18 R6FX +9 / -1 5 ✓ Full exchange observed
08-25 19:35 40m -4 / - YT7DX +8 / -10 4 ✓ Closing observed
08-25 19:33 40m -1 / - JR3REX -14 / -8 4 ✓ Closing observed
08-25 19:31 40m 0 / - YT2FA - / - 4 Partial capture
08-25 19:29 40m -1 / - JR3REX - / - 5 Partial capture
08-25 18:36 40m -7 / - JA4FKX - / - 6 Partial capture
08-25 18:31 40m -8 / +1 5A1AL -8 / -4 8 ✓ Full exchange observed
08-25 18:27 40m -4 / - ZL3TX - / - 3 Partial capture
08-23 15:38 10m - / +7 4O5JD -14 / - 2 ✓ Closing fragment
08-23 15:01 20m +2 / - 3B8GL - / - 3 Partial capture
08-23 14:55 20m +2 / - AP2TN - / - 2 Partial capture
08-22 05:31 20m +6 / - GD4VBA - / -1 4 Partial capture
08-22 05:25 20m +3 / - <...> - / - 4 Partial capture
08-22 05:12 20m +5 / - <...> - / - 3 Partial capture
08-07 16:18 20m -9 / - 9M2HUS - / - 3 Partial capture
08-04 04:13 40m -2 / - WA4FU - / - 2 Partial capture
08-04 04:08 40m - / -3 YT3MD -14 / - 2 Partial capture
08-01 10:57 10m -2 / - TK4VXL - / -19 3 ✓ Closing fragment
07-29 19:29 20m -5 / - VP5G - / - 3 Partial capture
07-29 19:14 20m -8 / - VP5G - / - 3 Partial capture
07-29 19:03 20m -15 / - VP5G - / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
193915  -2 2932  LX1JH PF1H JO21 (x2)
194030  +9 2932  PF1H LX1JH RR73
194145  -6 2932  EX7CQ PF1H JO21 (x5)
194515  -6 2932  UK8OM PF1H JO21 (x2)
195115  +1 2932  EX7CQ PF1H JO21 (x3)
195315  +2 2932  UK8OM PF1H JO21 (x2)
10m
UTC    dB Audio  Message
105730  -1 2932  TK4VXL PF1H JO21 (x3)
153830 -12 1591  PF1H 4O5JD +07 (x2)
133745  -6 2860  PF1H VE3EN RR73
20m
UTC    dB Audio  Message
051230  +6 2705  <...> PF1H JO21 (x6)
053100  +8 2833  GD4VBA PF1H JO21 (x4)
145515  +3 2881  AP2TN PF1H JO21 (x2)
150115  +3 2881  3B8GL PF1H JO21 (x3)

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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