F4HER — 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: JN06

Receiver-side FT8 activity involving F4HER, decoded by SO8OO in southeastern Poland. 371 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 18 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-11-05.

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 371 FT8 messages attributed to F4HER as the transmitting token by decoded message structure across 18 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (64%), followed by 80 m (21%) and 160 m (8%). Several six-hour UTC windows tied for the largest share (99%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8.3 dB.

Overview

371

Messages attributed

UTC dates decoded

Active 15-min windows

-8.3 dB

Estimated median S/N

Bands

160m · 31 80m · 78 60m · 236 40m · 18 20m · 6 10m · 2

First attributed message: 2026-06-07
Last attributed message: 2026-11-05 20:31 UTC

Observed FT8 message patterns

Attributed sample: 371 messages
Active dates: 18 UTC dates
Estimated median S/N: -8.3 dB
Estimated 10th-90th percentile: -17 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 48, moderate (-15 to -9 dB) 137, strong (≥ -8 dB) 186.

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 F4HER in decoded directed-looking exchanges:

DO3VE · Fed. Rep. of Germany ×2 HB9GNH · Switzerland ×2 F4HSB · France ×2 HA7UL · Hungary ×2 SP9DB · Poland ×2 HB3YOY · Switzerland ×2 E75W · Bosnia-Herzegovina DG0OFT · Fed. Rep. of Germany EI5GSB · Ireland F4CYH · France HA3PV · Hungary HB9HRR · Switzerland

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 F4HER

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: JN06 · 155 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,581 km (approx.)
Last such locator decoded: 2026-11-05 20:08 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	F4HER S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 20:31	160m	-20 / -	F4CYH	- / -8	2	✓ Closing fragment
11-05 20:28	160m	- / +9	DO3VE	-8 / -	2	✓ Closing fragment
11-05 20:23	80m	- / -2	DP75BAC	-20 / -	2	Partial capture
11-05 20:18	80m	- / -20	IQ4JO	-6 / -	3	✓ Closing fragment
11-05 20:11	80m	- / -	DO1DLE	-16 / -	2	Partial capture
11-05 20:06	60m	0 / -	G7SWS	- / -9	2	✓ Closing fragment
11-05 20:05	60m	+1 / -3	SP2EWQ	+1 / +3	4	✓ Full exchange observed
11-05 20:04	60m	- / -15	4X1GA	-12 / -	3	Partial capture
10-22 19:08	60m	- / -1	HB9TLL	-10 / -	2	✓ Closing fragment
10-22 19:06	60m	- / +2	F5MYK	-14 / -	2	✓ Closing fragment
10-22 18:55	60m	- / -8	OV5SP	-21 / -	3	✓ Closing fragment
10-22 18:52	60m	-10 / -	IK3VUT	+2 / -	5	✓ Full exchange observed
10-22 18:52	60m	-15 / -	SP1MGM	-12 / +10	4	Partial capture
10-22 18:26	80m	- / -	DK8HC	+2 / -	2	Partial capture
10-22 18:26	80m	- / +2	EB1LA	-13 / -	3	✓ Closing fragment
10-05 19:28	80m	- / -23	DO5AX	-16 / -	2	Partial capture
10-05 19:23	80m	-5 / -	F4IAA	- / -10	2	✓ Closing fragment
10-05 19:20	80m	-5 / -12	SP6FME	+10 / -9	6	✓ Full exchange observed
10-05 19:18	80m	-2 / 0	EA3KE	-11 / -	4	✓ Closing observed
10-05 19:16	80m	-11 / -10	TF3VS	-7 / -4	5	✓ Full exchange observed
10-05 19:14	80m	-9 / -	DK2NO	- / -7	3	✓ Closing fragment
10-05 19:09	80m	-7 / -15	UN0GY	-7 / -12	7	Partial capture
10-05 19:07	80m	-8 / -	F5RMK	-1 / -	7	✓ Full exchange observed
10-05 19:00	60m	-7 / -12	ER3UA	+3 / -12	5	✓ Full exchange observed
10-05 18:56	60m	-7 / -	DL4YDR	-16 / -6	6	✓ Full exchange observed
10-05 18:54	60m	-6 / +1	EA1AJT	-12 / +3	6	✓ Full exchange observed
10-05 18:52	60m	-8 / +3	DK9NP	+1 / -4	3	✓ Full exchange observed
10-05 18:52	60m	-8 / -	F4HSB	-21 / -11	6	✓ Closing observed
10-05 18:50	60m	-9 / +8	ON4MDW	-16 / 0	4	✓ Full exchange observed
10-05 18:48	60m	-5 / -	DL5CG	-14 / -2	4	✓ Closing observed
10-05 18:45	60m	-8 / -2	LZ1SAD	-1 / -5	4	✓ Full exchange observed
10-05 18:44	60m	-4 / -	M0XXJ	-14 / -1	5	✓ Full exchange observed
10-04 18:26	60m	-3 / -4	HA7UL	-4 / -8	3	✓ Full exchange observed
10-04 18:26	60m	- / -2	YU1ZZ	-6 / -	2	Partial capture
10-04 18:23	60m	-4 / -16	YU1EU	-7 / -6	4	✓ Full exchange observed
10-04 18:22	60m	-4 / -7	OE5RXH	-4 / -2	4	✓ Full exchange observed
10-04 18:21	60m	-5 / -9	UN7EG	-19 / -13	4	✓ Full exchange observed
09-29 20:40	60m	-10 / -	TM4GGR	- / -21	2	Partial capture
09-29 20:38	60m	-9 / -1	DL1OBF	+2 / +9	6	✓ Full exchange observed
09-29 20:36	60m	-9 / -1	HB9GNH	-8 / -10	5	✓ Full exchange observed
09-29 20:33	60m	-6 / -6	DL7UKM	-10 / -2	5	✓ Full exchange observed
09-29 20:33	60m	-9 / -11	SV1DZB	-16 / -12	5	✓ Full exchange observed
09-29 20:31	60m	-14 / -6	IU4PTA	-10 / +4	4	✓ Full exchange observed
09-29 20:29	60m	-8 / -4	DH7SB	-4 / -2	5	✓ Full exchange observed
09-29 20:27	60m	-10 / -	F1ABL	-13 / +1	4	✓ Full exchange observed
09-29 20:25	60m	-10 / -	SQ8AA	- / -7	5	✓ Closing fragment
09-29 20:24	60m	-9 / -	DB5HA	- / -6	2	✓ Closing fragment
09-29 20:23	60m	- / -	SP5JMA	-13 / -	2	Partial capture
09-29 20:21	60m	-14 / +3	G3UHU	-10 / +10	5	✓ Full exchange observed
09-29 19:42	60m	-4 / -	G4ZFJ	+5 / -	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
184115  +6 1109  F4HER HA3PV -20 (x2)
184200 -18 1179  HA3PV F4HER R-05
184215  +5 1109  F4HER HA3PV -20
184230 -15 1109  HA3PV F4HER R-01
184245  +2 1109  F4HER HA3PV RR73
184300 -21 1109  HA3PV F4HER 73
200315 -10 1601  F4HER EI5GSB -07 (x2)
200445  -7  886  F4HER OK2USM R-12 (x2)
202830 -10 1328  F4HER DO3VE +09 (x2)
203115 -24  809  F4CYH F4HER R-08 (x2)

80m

UTC    dB Audio  Message
182630 -10  831  F4HER EB1LA IN73
182630  +0  565  F4HER DK8HC JO42
182700 -11  830  F4HER EB1LA R+02
182700  +4  565  F4HER DK8HC JO42
182730 -17  831  F4HER EB1LA 73
183230 -10 1341  F4HER DO6ZMR 73
200845  -7  673  CQ F4HER JN06                         a1
201100 -18  891  F4HER DO1DLE JO31 (x2)
201330  -5 2347  F4HER IQ4JO JN63 (x4)
202330 -22 1205  F4HER DP75BAC R-02 (x2)

60m

UTC    dB Audio  Message
190830 -12 1468  F4HER HB9TLL RR73
200115 -17 1191  F4HER 4X1GA -16
200315  +0  709  CQ F4HER JN06 (x3)
200445 -11  807  F4HER 4X1GA -15
200445  -2  709  CQ F4HER JN06
200500  +3  710  F4HER SP2EWQ JO93
200515  +1  709  SP2EWQ F4HER +03
200515 -11  807  F4HER 4X1GA -15
200530  +1  710  F4HER SP2EWQ R-03
200545 -13  807  F4HER 4X1GA -15
200600  -2  710  F4HER SP2EWQ 73
200615  +0  709  G7SWS F4HER -09 (x2)

40m

UTC    dB Audio  Message
184415 -15 1986  F4HER RW1CW KO59
184415  +8  347  F4HER G0VXE 73
184430  -6 1067  DJ2MS F4HER +08
184445 -15 1987  F4HER RW1CW KO59
184445  -8 1067  F4HER DJ2MS R-06
184515 -11 1987  F4HER RW1CW KO59
184515 -10 1067  F4HER DJ2MS 73
184615 -14 1987  F4HER RW1CW KO59 (x2)
184730  -9 1417  EI8GS F4HER RR73
185815  -5  251  F4HER RA6OY KN88 (x2)
195700  +3  774  CQ F4HER JN06 (x2)
195745  -7 1653  F4HER EC3A -08

20m

UTC    dB Audio  Message
181130  -2  755  WO3U F4HER JN06 (x3)
181600  -9  755  K0BFG F4HER R-12 (x2)
181730  -2  741  KF4ECG F4HER JN06

10m

UTC    dB Audio  Message
133145 -10 2609  E75W F4HER JN06 (x2)
133600 -18 1475  F4HER LZ2HY -16 (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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