YY4GPM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Venezuela Most frequent locator attributed to this token: FK50

Receiver-side FT8 activity involving YY4GPM, decoded by SO8OO in southeastern Poland. 33 FT8 messages attributed to this token as transmitter, on 40m, 10m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-13.

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 33 FT8 messages attributed to YY4GPM as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (70%), followed by 10 m (30%). Several six-hour UTC windows tied for the largest share (73%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

40m · 23 10m · 10

First attributed message: 2026-06-06
Last attributed message: 2026-09-13 01:26 UTC

Observed FT8 message patterns

Attributed sample: 33 messages
Active dates: 8 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -20 to -8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 17, strong (≥ -8 dB) 5.

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 YY4GPM in decoded directed-looking exchanges:

DG6VC · Fed. Rep. of Germany EA6YK · Balearic Islands EA7AQY · Spain F1PBZ · France F4BHK · France F5IYE · France IK2UCK · Italy IT9CCB · Sicily PA2ES · Netherlands RN4AQ · European Russia SQ8SBP · Poland UA6HRB · European Russia

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 YY4GPM

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: FK50 · 12 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 9,172 km (approx.)
Last such locator decoded: 2026-09-13 01:18 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	YY4GPM S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 04:03	80m	- / -	ON8DM	+8 / -	2	Partial capture
09-19 04:02	80m	- / -	F5UTN	-2 / -	4	Partial capture
09-16 03:53	40m	- / -12	IK3SSW	+17 / -	5	✓ Closing fragment
09-13 01:40	80m	- / -	RU4LM	-6 / -	2	Partial capture
09-13 01:40	80m	- / -	OK1UOZ	+8 / -	8	Partial capture
09-13 01:38	80m	- / -	ON6AA	0 / -	5	Partial capture
09-13 01:26	40m	-10 / -17	RL9LR	-9 / -15	2	Partial capture
09-13 01:23	40m	- / -5	MI7XHT	-6 / -	2	Partial capture
09-13 01:18	40m	- / -12	GM6URC	-10 / -	3	Partial capture
09-13 01:11	40m	-8 / -	WA4UVH	-10 / -5	3	Partial capture
09-13 01:10	40m	- / -	R6ZEJ	-3 / -	2	Partial capture
09-13 00:28	40m	- / -	SA7CHI	-13 / -	2	Partial capture
09-13 00:28	40m	-16 / -11	R5DT	-7 / -2	5	Partial capture
09-04 23:50	80m	- / -20	EA8AJ	-24 / -	2	Partial capture
09-04 22:36	40m	- / -14	PA5VEN	-3 / -	2	Partial capture
09-04 22:36	40m	- / -16	SV5BYP	-1 / -	3	✓ Closing fragment
09-04 00:41	40m	- / -	TA3NK	-7 / -	7	Partial capture
09-04 00:30	40m	- / -9	S56P	-4 / -	2	✓ Closing fragment
09-03 01:08	40m	-18 / -14	UN7LZ	-9 / -17	4	Partial capture
08-31 01:27	40m	- / -10	A41KB	-6 / -	6	Partial capture
08-27 00:32	40m	- / -15	ON6AA	+2 / -	5	Partial capture
08-27 00:08	40m	- / -	RA4FUT	-6 / -	3	Partial capture
08-24 03:39	40m	- / -	EB1LA	+8 / -	2	Partial capture
08-24 03:38	40m	- / -	OH7VV	-8 / -	2	Partial capture
08-08 19:28	10m	- / -	I1YTO	-16 / -	2	Partial capture
08-08 19:22	10m	- / -1	F4BHK	-14 / -	4	✓ Closing fragment
08-08 19:11	10m	- / -	IZ1GCQ	-14 / -	2	Partial capture
08-08 18:53	10m	- / -	IW4DLP	-6 / -	2	Partial capture
08-08 16:42	10m	- / -	SV2CLJ	-10 / -	2	Partial capture
08-08 16:03	10m	- / -	SV0LS	-14 / -	2	Partial capture
08-07 22:43	40m	- / -	DB2GM	+4 / -	2	Partial capture
08-06 00:52	40m	- / -	PA1PXL	-10 / -	2	Partial capture
08-04 22:29	40m	- / -	DH2RL	-9 / -	3	Partial capture
08-04 22:22	40m	- / -	PA1PXL	-2 / -	4	Partial capture
08-04 00:12	40m	- / -12	A71XX	-10 / -	3	✓ Closing fragment
08-04 00:07	40m	- / -	RZ6ALZ	-12 / -	3	Partial capture
08-04 00:00	40m	- / -	M7LYG	-8 / -	2	Partial capture
08-03 23:55	40m	- / -15	G6BCC	-12 / -	4	Partial capture
08-03 23:28	40m	- / -9	EA1CP	-4 / -	3	✓ Closing fragment
08-03 22:43	40m	- / -	DK7GH	-9 / -	2	Partial capture
08-03 22:42	40m	- / -8	UA4FKT	+3 / -	6	Partial capture
08-02 05:22	40m	- / -	DF3MC	-8 / -	6	Partial capture
08-02 05:16	40m	- / -13	F6FTB	-16 / -	5	Partial capture
08-02 05:14	40m	- / -11	F4DIA	-16 / -	3	✓ Closing fragment
08-02 05:07	40m	- / -	DH3KR	-23 / -	3	Partial capture
08-02 05:07	40m	- / -	PD9JHB	-10 / -	2	Partial capture
08-02 04:27	40m	- / -13	DL3OCF	-5 / -	4	✓ Closing fragment
08-02 04:11	40m	- / -19	DH1BAS	+1 / -	7	✓ Closing fragment
08-01 17:26	10m	- / -6	IT9CCB	+2 / -	2	✓ Closing fragment
07-30 21:37	10m	- / -5	EA6YK	-18 / -	4	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
014100 -10 2000  YY4GPM RU4LM LO44
014100 +11  707  YY4GPM OK1UOZ JO70 (x6)
040030 -14 2597  YY4GPM KY4WI RR73
040100  -8 2306  YY4GPM ON8DM JO10
040230  -7 2752  YY4GPM F5UTN JN08 (x2)
040330  +7  707  YY4GPM ON8DM JO10
040330  +0 2753  YY4GPM F5UTN JN08
040400  +9  707  YY4GPM ON8DM JO10
040400  +3 2752  YY4GPM F5UTN JN08

40m

UTC    dB Audio  Message
011830 -10 1812  YY4GPM GM6URC -12
011845 -11  745  CQ YY4GPM FK50
011900  -9 1812  YY4GPM GM6URC -12 (x2)
012130  -6 1462  YY4GPM CT7AUT IM67
012300  -7 2336  YY4GPM MI7XHT IO64 (x2)
012615 -10  746  RL9LR YY4GPM -15
012730  -9  747  YY4GPM RL9LR R-17
035315 +12  407  YY4GPM IK3SSW JN65 (x5)
035645 -13 2139  YY4GPM R6OK KN87

10m

UTC    dB Audio  Message
163945 -13 2270  YY4GPM SV2AOB KN10
164245 -11  656  YY4GPM SV2CLJ KN10 (x2)
182915 -11  846  YY4GPM EA7AQY RR73
183845 -16 1077  YY4GPM EA4RH IN70
185345  -7  846  YY4GPM IW4DLP JN54 (x2)
191115 -15 1273  YY4GPM IZ1GCQ JN35 (x2)
192215 -10 1953  YY4GPM F4BHK JN08 (x4)
192845 -12  842  YY4GPM I1YTO JN44 (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.

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