G5CTH — 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: England Most frequent locator attributed to this token: IO91

Receiver-side FT8 activity involving G5CTH, decoded by SO8OO in southeastern Poland. 54 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-08-27 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 54 FT8 messages attributed to G5CTH as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (59%), followed by 40 m (41%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (69%); the estimated median was -12 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-12 dB

Estimated median S/N

Bands

80m · 32 40m · 22

First attributed message: 2026-08-27
Last attributed message: 2026-10-20 22:40 UTC

Observed FT8 message patterns

Attributed sample: 54 messages
Active dates: 6 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -17 to -8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 37, 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 G5CTH in decoded directed-looking exchanges:

2E0MRK · England EA4DZR · Spain F6FHZ · France IK4TVP · Italy IQ4JO · Italy PC2J · Netherlands EA8UP · Canary Islands

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 G5CTH

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: IO91 · 35 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,607 km (approx.)
Last such locator decoded: 2026-10-16 22:45 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	G5CTH S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-20 22:41	40m	- / -	2E0MRK	-20 / -	2	✓ Closing fragment
10-20 22:40	40m	-12 / -11	IQ4JO	-16 / +5	3	✓ Full exchange observed
10-16 22:44	40m	-14 / -	NE1CW	- / -	2	Partial capture
10-16 22:40	40m	-6 / -	EY7BM	- / -	5	Partial capture
10-16 22:29	40m	-9 / -10	PC2J	-11 / -	2	✓ Closing observed
10-16 22:28	40m	-7 / -2	IK4TVP	-18 / +3	5	✓ Full exchange observed
09-24 21:55	40m	-12 / -	EA4DZR	-14 / +3	2	✓ Closing observed
09-24 21:55	40m	- / -	RA3RDN	-3 / -	2	Partial capture
08-29 22:38	80m	-13 / -7	EA8UP	-10 / -	3	✓ Closing observed
08-28 22:53	80m	-12 / -	9V1YC	- / -21	7	Partial capture
08-28 22:49	80m	- / +4	2I0WAI	-6 / -	3	Partial capture
08-28 22:49	80m	- / -	R2AL	+4 / -	7	Partial capture
08-28 00:08	80m	-12 / -	VP2MAA	- / -	5	Partial capture
08-27 23:57	80m	-14 / -	VP2MAA	- / -19	13	Partial capture
08-27 23:54	80m	-16 / -	VP2MAA	- / -	3	Partial capture
08-27 23:39	40m	- / +1	F6FHZ	-10 / -	4	✓ Closing fragment
08-27 23:38	40m	- / -	UR9QQ	-10 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
222930 -19 2038  G5CTH IK4TVP -02
222945  -7 2651  IK4TVP G5CTH R+03
223000 -16 2038  G5CTH IK4TVP RR73
224015  -7 2792  EY7BM G5CTH IO91 (x5)
224400  -8 3044  NE1CW G5CTH IO91 (x2)
224015 -13 2737  IQ4JO G5CTH +05
224030 -16 2142  G5CTH IQ4JO R-11
224045 -12 2737  IQ4JO G5CTH RR73
224100 -23 2061  G5CTH 2E0MRK IO91 (x2)

80m

UTC    dB Audio  Message
225030  +4 1302  G5CTH R2AL KO85 (x4)
225230 -12 2703  EA8CVR G5CTH IO91
225330 -14 2702  9V1YC G5CTH IO91 (x7)
223830 -13 2703  EA8UP G5CTH IO91
223845 -10 1151  G5CTH EA8UP -07 (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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