SH4LIF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Sweden Most frequent locator attributed to this token: JP70

Receiver-side FT8 activity involving SH4LIF, decoded by SO8OO in southeastern Poland. 22 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-07-21.

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 22 FT8 messages attributed to SH4LIF as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (95%), followed by 20 m (5%). Several six-hour UTC windows tied for the largest share (95%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was +1 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

+1 dB

Estimated median S/N

Bands

20m · 1 10m · 21

First attributed message: 2026-06-10
Last attributed message: 2026-07-21 17:04 UTC

Observed FT8 message patterns

Attributed sample: 22 messages
Active dates: 5 UTC dates
Estimated median S/N: +1 dB
Estimated 10th-90th percentile: -21 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 2, strong (≥ -8 dB) 12.

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 SH4LIF in decoded directed-looking exchanges:

DL9KM · Fed. Rep. of Germany DO9KD · Fed. Rep. of Germany LZ2CP · Bulgaria US6CQ · Ukraine 9A6T · Croatia PD2WL · Netherlands DL1DEU · Fed. Rep. of Germany

Most frequent locator attributed to SH4LIF

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: JP70 · 4 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,249 km (approx.)
Last such locator decoded: 2026-06-26 14:28 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	SH4LIF S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-30 16:38	20m	- / -4	TA4SSK	-4 / -	2	Partial capture
07-27 12:07	20m	- / -	DK4FH	-12 / -	3	Partial capture
07-27 12:06	20m	- / -	PD3LKN	-13 / -	4	Partial capture
07-27 12:03	20m	- / -14	PD4FL	-22 / -	3	Partial capture
07-25 17:09	20m	- / -	EA3DKP	+4 / -	5	Partial capture
07-20 16:36	20m	- / -8	F1PBZ	-2 / -	2	Partial capture
07-17 08:43	20m	- / -7	PD2WL	-17 / -	3	✓ Closing fragment
07-17 08:41	20m	- / -14	R4FDW	-15 / -	9	Partial capture
07-17 08:39	20m	- / -	DK5UP	-7 / -	3	Partial capture
07-17 08:34	20m	- / -	F5HRH	-8 / -	2	Partial capture
07-17 08:34	20m	- / -	IK4LZH	+1 / -	3	Partial capture
07-08 09:01	10m	- / -4	US6CQ	-16 / -	2	✓ Closing fragment
06-26 14:27	10m	-20 / -	DL9KM	- / -10	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
165945 -14 1282  SH4LIF YT1UBN KN04
120345 -20 1375  SH4LIF PD4FL JO33 (x3)
120615 -11  902  SH4LIF PD3LKN JO22 (x4)
120745 -11 2018  SH4LIF DK4FH JO64 (x3)
121115 -15  901  SH4LIF PD3LKN JO22
163130 -11  681  SH4LIF Z33F R-16
163830  -8 1243  SH4LIF TA4SSK KM57 (x2)

40m

UTC    dB Audio  Message
163845 -14 2313  SH4LIF OZ9FF R-08
164530 -10 2414  SH4LIF DL1DEU 73

10m

UTC    dB Audio  Message
142430 -16 1120  GJ0KYZ SH4LIF -04
142715 -19 1257  DL9KM SH4LIF -10 (x2)
142845 -15 1256  CQ SH4LIF JP70
143115 -19 1257  DO9KD SH4LIF RR73
143130  -7 2388  SH4LIF DN9OPA JN38
143145 -19 1892  SM5MRW SH4LIF -16
143300 -23 2017  CX5ABM SH4LIF -15
143445  -8 1591  SH4LIF LZ2CP 73
164945 -11 1792  CN2DX SH4LIF -24
090100 -18 2156  SH4LIF US6CQ R-04 (x2)
090445 -17 1574  S51TN SH4LIF +03

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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