F4HHL — 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: JN19

Receiver-side FT8 activity involving F4HHL, decoded by SO8OO in southeastern Poland. 27 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-08-23 and 2026-10-11.

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 27 FT8 messages attributed to F4HHL as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (85%), followed by 80 m (11%) and 40 m (4%). Several six-hour UTC windows tied for the largest share (78%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 3 40m · 1 20m · 23

First attributed message: 2026-08-23
Last attributed message: 2026-10-11 05:18 UTC

Observed FT8 message patterns

Attributed sample: 27 messages
Active dates: 5 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -17 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 8.

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 F4HHL in decoded directed-looking exchanges:

LU1DA · Argentina ×2 PY4STO · Brazil TJ1GD · Cameroon

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 F4HHL

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: JN19 · 14 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,348 km (approx.)
Last such locator decoded: 2026-10-11 05:18 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	F4HHL S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-11 05:05	80m	-16 / -	KF8EXX	- / -21	2	Partial capture
09-12 22:14	40m	-19 / -9	II0IHMG	-4 / -	5	Partial capture
08-30 21:29	20m	-19 / -11	TJ1GD	-4 / -	3	✓ Closing observed
08-27 10:20	20m	+4 / -	TI5RR	- / -	3	Partial capture
08-24 20:37	20m	- / -	CT1BFP	-12 / -	3	Partial capture
08-24 20:33	20m	- / -	G4FHL	-10 / -	3	Partial capture
08-24 20:32	20m	- / -	DL1R	0 / -	9	Partial capture
08-23 20:56	20m	-6 / -	TJ1GD	- / -	2	Partial capture
08-23 20:52	20m	-12 / -	JA1NVF	- / -13	5	Partial capture
08-23 20:51	20m	-10 / -	K0MDS	- / -	2	Partial capture
08-23 20:48	20m	-11 / -8	LU1DA	-14 / -21	8	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
050500 -16 1799  KF8EXX F4HHL JN19 (x2)
050745  +1 1545  F4HHL F4FSY -06
051845 -10 1383  9H6C F4HHL JN19

40m

UTC    dB Audio  Message
221415 -19 1070  II0IHMG F4HHL JN19
221430  -3 1071  F4HHL II0IHMG -09 (x4)

20m

UTC    dB Audio  Message
203400 -13 1031  F4HHL G4FHL IO94
203400  +2 2658  F4HHL DL1R JN58 (x5)
203700 -11 1619  F4HHL CT1BFP IM59 (x3)
102045  +6 2652  TI5RR F4HHL JN19 (x3)
212900  -3  516  F4HHL TJ1GD -11 (x2)
212945 -19  515  TJ1GD F4HHL 73

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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