F4MHC — 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: France Most frequent locator attributed to this token: JN33

Receiver-side FT8 activity involving F4MHC, decoded by SO8OO in southeastern Poland. 56 FT8 messages attributed to this token as transmitter, on 80m, 40m, 10m, across 3 UTC dates in the available aggregate history. Observed between 2026-11-02 and 2026-11-04.

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 56 FT8 messages attributed to F4MHC as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (50%), followed by 40 m (29%) and 10 m (21%). Several six-hour UTC windows tied for the largest share (50%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (73%); the estimated median was -5 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-5 dB

Estimated median S/N

Bands

80m · 28 40m · 16 10m · 12

First attributed message: 2026-11-02
Last attributed message: 2026-11-04 15:17 UTC

Observed FT8 message patterns

Attributed sample: 56 messages
Active dates: 3 UTC dates
Estimated median S/N: -5 dB
Estimated 10th-90th percentile: -20 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 41.

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 F4MHC in decoded directed-looking exchanges:

XQ3SK · Chile DL1DEU · Fed. Rep. of Germany DL2VM · Fed. Rep. of Germany F5SJC · France IU5HIU · Italy IZ8PPI · Italy ZL1VAH · New Zealand DO5PY · Fed. Rep. of Germany OK2WMC · Czech Republic S50XX · Slovenia SP1JA · Poland SP3JHZ · Poland

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 F4MHC

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: JN33 · 32 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,332 km (approx.)
Last such locator decoded: 2026-11-04 15:14 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 UTC	Band	F4MHC S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-04 15:16	40m	-9 / -	IZ8PPI	- / -9	2	✓ Closing fragment
11-04 15:13	40m	-1 / -	ZL1VAH	- / -24	5	✓ Closing fragment
11-04 15:07	40m	- / +9	F1UFX	-8 / -	2	Partial capture
11-04 15:03	40m	-11 / -	IU5HIU	-10 / -	3	✓ Closing observed
11-03 16:30	40m	-4 / -	F5SJC	-8 / -1	6	✓ Closing observed
11-03 16:27	40m	-6 / -	DL1DEU	+3 / -1	4	✓ Full exchange observed
11-03 13:24	10m	-20 / -	XQ3SK	- / -14	4	✓ Closing fragment
11-03 13:23	10m	-7 / -	PP5EO	- / -	2	Partial capture
11-03 13:22	10m	-22 / -	US2YW	- / -14	2	Partial capture
11-02 22:08	80m	0 / +7	S50XX	+10 / -	4	✓ Closing observed
11-02 22:01	80m	+4 / -	CT3HQ	- / -	2	Partial capture
11-02 21:58	80m	- / -7	YO2UKG	+13 / -	3	✓ Closing fragment
11-02 21:53	80m	- / -	UX5UO	+6 / -	5	Partial capture
11-02 21:30	80m	-6 / -1	SP1JA	+5 / -5	4	✓ Full exchange observed
11-02 21:24	80m	-8 / -5	YO9HP	+2 / -1	4	✓ Full exchange observed
11-02 21:04	80m	-5 / -	SV3AUW	- / -	5	Partial capture
11-02 20:59	80m	0 / -	SV3AUW	- / -	2	Partial capture
11-02 20:56	80m	+6 / -	JA4FSH	- / -	2	Partial capture
11-02 20:37	80m	-2 / -6	OK2WMC	+2 / -3	3	✓ Full exchange observed
11-02 20:21	80m	- / -	F4GPQ	-8 / -	3	Partial capture
11-02 20:20	80m	+2 / -	DO5PY	- / -11	2	✓ Closing fragment
11-02 19:52	80m	- / -	DO5PY	-2 / -	2	Partial capture
11-02 19:52	80m	-9 / -14	SP3JHZ	+2 / -8	5	✓ Full exchange observed
11-01 14:11	10m	- / -6	D2UY	-6 / -	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
163315  -5 2609  F5SJC F4MHC 73
150300 -12  968  F4MHC IU5HIU JN53
150315  -8  672  RA3QM F4MHC JN33
150415 -11  673  IU5HIU F4MHC RR73
150430  -8  969  F4MHC IU5HIU 73
150700  -6  672  F4MHC F1UFX +09
150730 -10 1462  F4MHC OT4R -01
150730  -9  672  F4MHC F1UFX +09
151300  -2 2788  ZL1VAH F4MHC JN33 (x5)
151630 -10 1530  IZ8PPI F4MHC R-09 (x2)

10m

UTC    dB Audio  Message
141130  -6 2572  F4MHC D2UY -06 (x2)
131400 -15 2528  LU5VV F4MHC JN33
132130 -17 1466  9A4ZM F4MHC +15
132200 -21 1794  US2YW F4MHC -14 (x2)
132300  -8 2793  PP5EO F4MHC JN33 (x2)
132430 -20 1968  XQ3SK F4MHC JN33 (x4)
132900 -18 1237  PU2YWR F4MHC JN33
133000 -20 2065  9A1MM F4MHC JN33

80m

UTC    dB Audio  Message
215430  +8  778  F4MHC UX5UO KO50 (x2)
215815 +13 1169  F4MHC YO2UKG -07 (x3)
220130  +6  968  CT3HQ F4MHC JN33 (x2)
220400  -3 2051  SV3AUW F4MHC JN33
220630  -6 2094  M8LOD F4MHC JN33
220800  +1 2094  CQ F4MHC JN33
220815  +7 2094  F4MHC S50XX JN65 (x2)
220900  +0 2095  S50XX F4MHC RR73
220915 +12 2094  F4MHC S50XX 73
221015  -5 2094  CQ F4MHC JN33

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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