CT1FJW — 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: Portugal Most frequent locator attributed to this token: IM58

Receiver-side FT8 activity involving CT1FJW, decoded by SO8OO in southeastern Poland. 43 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-10-21.

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 43 FT8 messages attributed to CT1FJW as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (86%), followed by 160 m (14%). Most decodes (91%) fell within the six-hour window 21:00-03:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (63%); the estimated median was -17 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

160m · 6 80m · 37

First attributed message: 2026-06-09
Last attributed message: 2026-10-21 22:30 UTC

Observed FT8 message patterns

Attributed sample: 43 messages
Active dates: 8 UTC dates
Estimated median S/N: -17 dB
Estimated 10th-90th percentile: -22 to -7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 27, moderate (-15 to -9 dB) 11, 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 CT1FJW in decoded directed-looking exchanges:

EA5HM · Spain T77RN · San Marino TN8GD · Republic of the Congo

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 CT1FJW

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: IM58 · 31 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,737 km (approx.)
Last such locator decoded: 2026-10-21 22:30 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	CT1FJW S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-21 22:26	160m	-10 / -	7P8GE	- / -	6	Partial capture
10-21 21:16	80m	- / -	OK4FX	+17 / -	2	Partial capture
10-21 21:16	80m	- / -	US2YW	+5 / -	3	Partial capture
10-21 21:14	80m	-11 / -	T77RN	- / -21	5	✓ Closing fragment
10-06 22:08	80m	- / -	EA1KCU	-2 / -	3	Partial capture
09-19 00:51	80m	-17 / -	VP8A	- / -	2	Partial capture
09-16 22:53	80m	-18 / -	RI1FJZ	- / -	3	Partial capture
09-11 04:55	80m	-22 / -	HK3O	- / -	4	Partial capture
08-14 02:56	80m	-19 / -1	EA5HM	-6 / -5	4	✓ Full exchange observed
08-14 02:52	80m	-21 / -	TN8GD	- / -21	6	✓ Closing fragment
08-14 02:44	80m	-15 / -	TN8GD	- / -	2	Partial capture
08-14 02:40	80m	-18 / -	<...>	- / -	2	Partial capture
08-14 02:22	80m	-16 / -	TN8GD	- / -18	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
222645 -14  705  7P8GE CT1FJW IM58 (x6)

80m

UTC    dB Audio  Message
051945 -20 1694  CT1FJW GM6URC -13
214145  -3 1486  9T0MD CT1FJW IM58
220800  -3  339  CT1FJW EA1KCU +22 (x3)
211415  -6  544  T77RN CT1FJW IM58 (x5)
211630  +5 1545  CT1FJW US2YW KN28
211630 +16  755  CT1FJW OK4FX JO70
211700  +6 1545  CT1FJW US2YW KN28
211700 +18  755  CT1FJW OK4FX JO70
211730  +4 1545  CT1FJW US2YW KN28

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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee