F4HMP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: JN39

Receiver-side FT8 activity involving F4HMP, decoded by SO8OO in southeastern Poland. 1,416 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 31 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-09.

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 1,416 FT8 messages attributed to F4HMP as the transmitting token by decoded message structure across 31 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (54%), followed by 40 m (29%) and 20 m (17%). Several six-hour UTC windows tied for the largest share (54%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

1,416

Messages attributed

UTC dates decoded

199

Active 15-min windows

-16 dB

Estimated median S/N

Bands

40m · 404 20m · 247 10m · 765

First attributed message: 2026-06-07
Last attributed message: 2026-09-09 15:53 UTC

Observed FT8 message patterns

Attributed sample: 1,416 messages
Active dates: 31 UTC dates
Estimated median S/N: -16 dB
Estimated 10th-90th percentile: -23 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 717, moderate (-15 to -9 dB) 477, strong (≥ -8 dB) 222.

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 F4HMP in decoded directed-looking exchanges:

DL3HN · Fed. Rep. of Germany ×2 OK1DBE · Czech Republic ×2 DJ0MAB · Fed. Rep. of Germany ×2 MW7RHR · Wales ×2 DL9KM · Fed. Rep. of Germany ×2 F1UNR · France ×2 SP9CCD · Poland SP9Y · Poland F4GUK · France DL5BAW/P · Fed. Rep. of Germany DK1DA · Fed. Rep. of Germany R2FDP · Kaliningrad

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 F4HMP

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: JN39 · 1,095 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,063 km (approx.)
Last such locator decoded: 2026-09-09 15:53 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 UTC	Band	F4HMP S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-10 12:42	40m	- / -11	DL2HUC	-3 / -	3	Partial capture
09-09 15:24	40m	-14 / -	M8FQT	- / -15	2	✓ Closing fragment
09-09 15:14	40m	-20 / +2	SP2BZ	-4 / -11	4	✓ Full exchange observed
09-09 15:08	40m	-17 / -	MW7RHR	- / -6	2	✓ Closing fragment
09-09 15:02	40m	-16 / -	EA3FYO	- / -17	2	✓ Closing fragment
09-09 15:01	40m	-18 / -	DL3RBW	- / -14	2	✓ Closing fragment
09-09 14:54	40m	-19 / -	F4MUD	- / -18	2	✓ Closing fragment
09-09 14:50	40m	-17 / +6	DL2ZJA	-18 / +4	4	✓ Full exchange observed
09-09 14:33	40m	- / -	DK1DA	-19 / -	2	✓ Closing fragment
09-09 14:23	40m	- / -	SP2GR	-12 / -	2	Partial capture
09-09 14:18	40m	- / -	HA3HZ	-3 / -	6	Partial capture
09-09 13:41	40m	-24 / -6	SQ9OUG	-1 / 0	4	✓ Full exchange observed
09-09 13:39	40m	- / -6	SP7UWB	-4 / -	3	✓ Closing fragment
09-09 13:26	40m	-19 / -	PI4DX	-6 / -	3	✓ Full exchange observed
09-09 13:20	40m	- / -12	HG0NPJ	-2 / -	2	✓ Closing fragment
09-09 12:43	40m	- / +3	ON4CJU	-15 / -	3	Partial capture
09-06 11:53	40m	- / -18	SP7VCL	-10 / -	4	Partial capture
09-06 11:40	40m	- / -7	DJ7XB	-14 / -	3	Partial capture
09-06 11:36	40m	- / -13	SP6FME	-5 / -	2	✓ Closing fragment
09-06 11:16	40m	- / -	HA3HZ	-8 / -	6	Partial capture
09-04 15:15	40m	-17 / -	M0PBF	- / -13	2	✓ Closing fragment
09-04 12:38	40m	- / -7	DL9JM	-22 / -	2	Partial capture
09-04 09:13	40m	- / -7	SP9CCD	-22 / -	2	✓ Closing fragment
09-04 09:07	40m	-16 / 0	SQ9SET	+2 / -	3	✓ Closing observed
09-04 09:02	40m	-22 / -8	OK2QP	-3 / -	4	✓ Closing observed
09-04 08:59	40m	-16 / -	EA2EED	- / -3	2	Partial capture
09-04 08:55	40m	-22 / -	F4GYI	- / -	2	✓ Closing fragment
09-04 08:50	40m	-20 / +6	SN40KZE	+1 / -4	2	Partial capture
09-04 08:48	40m	-14 / -3	DF9HT/P	-10 / -	4	✓ Closing observed
09-04 08:43	40m	-9 / -	G3AKA	- / -3	3	✓ Closing fragment
09-03 12:57	40m	- / -4	OK5AG/P	-3 / -	2	Partial capture
09-03 11:32	40m	- / -16	HF40BLP	+3 / -	3	Partial capture
09-01 15:35	40m	-14 / -	DL2KAC	- / -	2	Partial capture
09-01 15:32	40m	-15 / -	F1UNR	- / -19	3	✓ Closing fragment
09-01 15:31	40m	- / -	DM3PT	-5 / -	3	Partial capture
09-01 15:26	40m	-8 / -	DJ1NE	- / -14	2	✓ Closing fragment
09-01 15:12	40m	-15 / -13	YL3NE	-12 / -14	4	✓ Full exchange observed
09-01 15:10	40m	- / -4	SP3AVS	-14 / -	3	✓ Closing fragment
09-01 15:03	40m	-20 / -	DL5BAW/P	-20 / -14	2	✓ Closing observed
09-01 15:00	40m	-14 / +6	DJ0MAB	-4 / -	6	✓ Closing observed
09-01 14:51	40m	-13 / -4	OZ9FF	-2 / -	5	✓ Closing observed
09-01 14:50	40m	-20 / +9	PE9JAN	-14 / -	2	Partial capture
09-01 14:48	40m	-16 / -6	DG9ZL	-18 / -10	5	Partial capture
09-01 14:47	40m	-16 / -7	SP4LO	-14 / -	2	Partial capture
09-01 14:44	40m	-16 / -6	SP7SZJ	-4 / 0	6	✓ Full exchange observed
09-01 14:44	40m	-12 / -	DK8WQ	- / -6	2	✓ Closing fragment
09-01 14:39	40m	-7 / -	OK8DCC	+4 / -	4	✓ Closing observed
09-01 14:38	40m	-19 / -15	SP9JP	-8 / -2	5	✓ Full exchange observed
09-01 14:34	40m	-15 / -	DJ2MS	- / +3	3	✓ Closing fragment
09-01 14:28	40m	-12 / -	DK6WS	-16 / -	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
154030 -12 1885  CQ F4HMP JN39                         a1 (x10)
155215  -5 2521  F4HMP RZ6ALZ LN06
155300 -10 1885  CQ F4HMP JN39
124215  -1 2037  F4HMP DL2HUC -11 (x3)

20m

UTC    dB Audio  Message
070000 -12 3072  UT7UJ F4HMP JN39
084645  -5 1044  CT2HEX F4HMP JN39
084715  -6 1812  EA4D F4HMP JN39
084845  +6  877  YO5PHL F4HMP JN39
084915  -5 1582  KD4AP F4HMP JN39
084945  -3 1810  EA4D F4HMP R+00
085030  -9 1811  F4HMP EA4D RRR (x4)
085200  -7 1432  CQ F4HMP JN39
085230  -9 1811  F4HMP EA4D RRR
162045 -11  945  F4HMP M7VME +02
155145  -6 2504  F4HMP EB5DQ -03
180015  -4 3068  F4HMP RA1CY RR73

10m

UTC    dB Audio  Message
115400 -20 1283  CQ F4HMP JN39 (x10)
113445 -17 1567  F4HMP LY2CG R-04
132345  -8 3072  PT7PT F4HMP JN39
141315  -9  554  F4HMP IU0VOG -19 (x2)
180230 -24 1815  CQ F4HMP JN39                         a1

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.

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