SP6ACH — 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: Poland Most frequent locator attributed to this token: JO81

Receiver-side FT8 activity involving SP6ACH, decoded by SO8OO in southeastern Poland. 77 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-20.

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 77 FT8 messages attributed to SP6ACH as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (48%), followed by 40 m (36%) and 20 m (16%). Several six-hour UTC windows tied for the largest share (82%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (91%); the estimated median was +1 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

+1 dB

Estimated median S/N

Bands

80m · 37 40m · 28 20m · 12

First attributed message: 2026-06-07
Last attributed message: 2026-10-20 14:29 UTC

Observed FT8 message patterns

Attributed sample: 77 messages
Active dates: 13 UTC dates
Estimated median S/N: +1 dB
Estimated 10th-90th percentile: -8 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 70.

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 SP6ACH in decoded directed-looking exchanges:

DF3RD · Fed. Rep. of Germany DL6MRM · Fed. Rep. of Germany LZ9DX · Bulgaria PD1B · Netherlands PD2MAC · Netherlands SP2JNK · Poland SP2OSA · Poland DO5HOK · Fed. Rep. of Germany DO9AO · Fed. Rep. of Germany LY8O · Lithuania PH3T · Netherlands SP2OSP · 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 SP6ACH

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: JO81 · 36 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 379 km (approx.)
Last such locator decoded: 2026-10-20 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	SP6ACH S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-20 14:28	40m	0 / -	SP2JNK	-5 / -5	4	✓ Full exchange observed
10-11 14:28	80m	- / -	RK6OQ	-16 / -	2	Partial capture
10-11 14:26	80m	+9 / -6	DO9AO	-4 / -6	5	✓ Full exchange observed
09-26 19:42	40m	- / +1	PD2MAC	-8 / -	2	✓ Closing fragment
09-26 19:32	40m	- / -5	PD1B	-8 / -	2	✓ Closing fragment
09-26 19:17	80m	-8 / -	SQ100PKP	- / -13	2	Partial capture
09-10 19:26	80m	+2 / -2	Z62NS	0 / -9	5	✓ Full exchange observed
08-24 10:31	20m	- / -1	DF3RD	-12 / -	2	✓ Closing fragment
08-20 19:49	80m	-1 / -5	PH3T	-4 / -6	5	✓ Full exchange observed
08-20 19:47	80m	-2 / 0	LY8O	+6 / -5	5	✓ Full exchange observed
08-20 19:42	40m	+2 / -	<...>	- / -8	2	Partial capture
08-20 19:09	20m	- / -14	XU7O	-10 / -	2	Partial capture
08-15 21:12	40m	0 / -	S55OO	- / -	2	Partial capture
08-05 08:58	40m	-15 / -	SP2OSA	- / -9	3	✓ Closing fragment
08-02 20:56	80m	0 / -3	SP8NR	+2 / -7	5	✓ Full exchange observed
08-02 20:53	80m	0 / -2	SP2OSP	+8 / -9	5	✓ Full exchange observed
08-02 20:49	80m	+2 / -	A71QQ	- / -	3	Partial capture
08-02 20:47	80m	+4 / -	<...>	- / -12	2	Partial capture
08-02 20:43	80m	-8 / -	DO5HOK	-7 / -6	3	✓ Closing observed
08-02 20:38	40m	+2 / -	<...>	- / -14	2	Partial capture
08-02 20:33	40m	+1 / +8	DL6MRM	-14 / -6	5	✓ Full exchange observed
08-02 20:31	40m	+2 / -	LZ9DX	- / -14	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
090045 -13 1294  SQ9ONX SP6ACH JO81
211245  +0 1072  S55OO SP6ACH JO81 (x2)
194245  +1 1626  <...> SP6ACH JO81
194300  +0 1475  SP6ACH OL900CO +02
194315  +3 1626  <...> SP6ACH R-08
193230  -6 1585  SP6ACH PD1B -05 (x2)
193430  -4 1484  SP6ACH IK3/UY7LA R-01
194230  -9  489  SP6ACH PD2MAC +01 (x2)
142845  -1 1353  SP2JNK SP6ACH JO81
142900  -5 1482  SP6ACH SP2JNK +19
142915  +0 1353  SP2JNK SP6ACH R-05 (x2)

80m

UTC    dB Audio  Message
192615  +6 1218  Z62NS SP6ACH JO81
192630  -2 1355  SP6ACH Z62NS -02
192645  -1 1218  Z62NS SP6ACH R-09
192700  +1 1355  SP6ACH Z62NS RR73
192715  +0 1218  Z62NS SP6ACH 73
191730  -8 1601  SQ100PKP SP6ACH JO81
191745  -7 2107  SP6ACH <...> -07
191800  -8 1601  SQ100PKP SP6ACH R-13
142630  +6  924  DO9AO SP6ACH JO81
142645  -6 1216  SP6ACH DO9AO -06
142700 +12  924  DO9AO SP6ACH R-06
142715  -3 1216  SP6ACH DO9AO RR73
142730  +9  924  DO9AO SP6ACH 73
142815 -16 1501  SP6ACH RK6OQ KN87 (x2)

20m

UTC    dB Audio  Message
190900 -10  486  SP6ACH XU7O -14 (x2)
103130  -9  260  SP6ACH DF3RD -01 (x2)

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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