JH0MSF — 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: Japan Most frequent locator attributed to this token: PM97

Receiver-side FT8 activity involving JH0MSF, decoded by SO8OO in southeastern Poland. 21 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-09-17 and 2026-10-18.

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 21 FT8 messages attributed to JH0MSF as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (86%), followed by 40 m (10%) and 160 m (5%). 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 moderate S/N range (62%); the estimated median was -14 dB.

Overview

21
Messages attributed
5
UTC dates decoded
6
Active 15-min windows
-14 dB
Estimated median S/N

Bands

First attributed message: 2026-09-17
Last attributed message: 2026-10-18 20:23 UTC

Observed FT8 message patterns

Attributed sample
21 messages
Active dates
5 UTC dates
Estimated median S/N
-14 dB
Estimated 10th-90th percentile
-18 to -13 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 0.

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 JH0MSF

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
PM97 · 9 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,513 km (approx.)
Last such locator decoded
2026-10-18 20:22 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 UTCBandJH0MSF S/NCounterpartCounterpart S/NMsgsCapture
10-21 20:14 40m - / - SV9AUP -18 / - 2 Partial capture
10-21 20:04 40m - / -12 IW9HPG 0 / - 4 Partial capture
10-21 20:03 40m - / -5 ER1CW -12 / - 2 ✓ Closing fragment
10-21 20:00 40m - / -16 R6FX -6 / - 5 ✓ Closing fragment
10-21 19:52 40m - / -11 TA2VUZ -14 / - 2 ✓ Closing fragment
10-18 20:26 80m - / -18 OE3KJO +2 / - 2 ✓ Closing fragment
10-18 20:25 80m - / -15 LA9GX +4 / - 2 ✓ Closing fragment
10-18 20:22 80m -14 / -10 ON6AA +1 / -9 4 ✓ Full exchange observed
10-18 20:22 80m -15 / - OE3KJO - / - 2 Partial capture
10-18 20:16 80m - / -13 DK2LG +4 / - 2 Partial capture
10-18 19:25 80m - / -16 LZ7MM 0 / - 6 ✓ Closing fragment
10-16 22:35 40m - / -17 EA8UP -8 / - 2 ✓ Closing fragment
10-16 20:33 80m - / -19 ON4IQ +20 / - 2 ✓ Closing fragment
10-16 20:19 160m - / -16 4J3DJ -8 / - 2 ✓ Closing fragment
10-16 20:15 80m - / -18 PI4DX +12 / - 2 ✓ Closing fragment
10-16 20:13 80m - / - UX5UO +4 / - 3 ✓ Closing fragment
10-16 19:19 40m - / - UF5F -4 / - 4 Partial capture
10-16 19:06 80m - / - UX5UO +11 / - 4 Partial capture
10-15 19:29 160m - / -25 E77EA +8 / - 2 ✓ Closing fragment
10-15 19:21 80m -15 / - DM5KM - / - 3 Partial capture
10-15 19:19 80m -18 / -13 EW6BZ +10 / - 4 ✓ Closing observed
10-14 20:56 80m - / - IT9EJW 0 / - 2 Partial capture
10-14 20:55 80m - / -25 S57UX +7 / - 2 ✓ Closing fragment
10-14 19:30 80m - / -25 IK5SRB +2 / - 3 ✓ Closing fragment
10-14 19:28 80m - / -15 9A5E 0 / - 4 ✓ Closing fragment
10-14 19:15 80m - / 0 RW9JZ -14 / - 2 ✓ Closing fragment
10-13 20:24 80m - / - IV3DXW +25 / - 2 Partial capture
10-13 19:35 80m - / -15 RO2X +5 / - 7 Partial capture
10-12 20:50 80m - / -18 HA7XL +10 / - 3 ✓ Closing fragment
10-12 20:49 80m - / -17 YU0U +4 / - 2 ✓ Closing fragment
10-12 20:33 80m - / -16 SQ9BC -4 / - 2 Partial capture
10-12 20:33 80m - / - UH4LBG -6 / - 2 Partial capture
10-12 20:32 80m - / -14 UA3ZNQ -8 / - 3 ✓ Closing fragment
10-12 20:31 80m - / -21 HB9BLQ +6 / - 2 ✓ Closing fragment
10-12 19:51 80m -14 / -24 LY1DY +4 / -21 7 ✓ Full exchange observed
10-12 19:49 80m -14 / -23 SP9BGL -3 / -10 5 ✓ Full exchange observed
10-08 19:17 160m - / - RX6DA -9 / - 6 Partial capture
10-08 19:11 80m - / -18 9K2GR -14 / - 2 ✓ Closing fragment
10-07 20:47 80m - / -15 HA1TNX +12 / - 2 ✓ Closing fragment
10-07 20:27 80m - / -15 S59A +20 / - 3 ✓ Closing fragment
10-07 19:12 80m - / -14 9A5TW +20 / - 3 ✓ Closing fragment
10-05 19:45 160m - / -17 LZ2IP +7 / - 4 ✓ Closing fragment
10-04 19:38 80m - / -18 OT7K +12 / - 2 ✓ Closing fragment
10-04 19:14 80m - / -17 R2AL +4 / - 10 Partial capture
10-02 21:09 80m - / -14 V51WH -18 / - 2 Partial capture
10-02 20:26 160m - / -19 DL3IAE +6 / - 3 ✓ Closing fragment
10-02 20:23 160m -16 / -20 9A2AJ +14 / -10 7 ✓ Full exchange observed
10-02 20:08 160m - / - SP8VJV +8 / - 3 Partial capture
10-02 19:50 80m - / -11 ES5RY 0 / - 3 ✓ Closing fragment
10-02 19:33 160m - / - SQ3M +3 / - 5 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
200200  -6 1234  JH0MSF R6FX R-16 (x2)
200330 -15 1664  JH0MSF ER1CW -05 (x2)
200430  -2 1019  JH0MSF IW9HPG JM78
200500  -9 1619  JH0MSF TA4RC -16
200500  +0 1019  JH0MSF IW9HPG R-12 (x3)
200700 -20 1755  JH0MSF IT9ZGW JM76
201100  +0 1338  JH0MSF IW0BSQ -20
201345 +16  567  JH0MSF EA6Y RR73
201445 -17 1059  JH0MSF SV9AUP KM25
201445  +0  954  JH0MSF I5ZGQ JN53
201515 -18 1059  JH0MSF SV9AUP KM25
80m
UTC    dB Audio  Message
192630  +4 1284  JH0MSF LZ7MM -16 (x3)
201630  +3 1622  JH0MSF DK2LG -13 (x2)
202215 -16 1054  OE3KJO JH0MSF PM97
202230  +0 2042  JH0MSF ON6AA JO11
202245 -14 1054  OE3KJO JH0MSF PM97
202315 -11 1054  ON6AA JH0MSF -09
202330  +2 2042  JH0MSF ON6AA R-10
202345 -18 1054  ON6AA JH0MSF RR73
202530  +5  641  JH0MSF LA9GX R-15
202600  +4 1780  JH0MSF OE3KJO -18
202600  +4  641  JH0MSF LA9GX 73
202700  +1 1780  JH0MSF OE3KJO RR73
160m
UTC    dB Audio  Message
194500  +3 1401  JH0MSF LZ2IP -17 (x4)
191715  -6  666  JH0MSF RX6DA KN85 (x6)
200915 -17 2413  JH0MSF UN0GY -18
192915  +8 1702  JH0MSF E77EA -25 (x2)
201945 -10  335  JH0MSF 4J3DJ -16 (x2)
20m
UTC    dB Audio  Message
215600  +5  414  JH0MSF 7X5CY RR73
121615 -16 1980  JH0MSF IK4RVY -20 (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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