CT1DHX — 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 CT1DHX, decoded by SO8OO in southeastern Poland. 43 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-22 and 2026-10-31.

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 CT1DHX as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (91%), followed by 20 m (9%). In this small sample, the estimated median decoder S/N was -15 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

20m · 4 10m · 39

First attributed message: 2026-06-22
Last attributed message: 2026-10-31 15:09 UTC

Observed FT8 message patterns

Attributed sample: 43 messages
Active dates: 2 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -20 to -8 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 20, moderate (-15 to -9 dB) 18, 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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with CT1DHX in decoded directed-looking exchanges:

5R8IC · Madagascar DL6BAD · Fed. Rep. of Germany DO9BAU · Fed. Rep. of Germany IK6BSN · Italy OD5ZZ · Lebanon SM7TZK · Sweden SQ8XY · Poland SV3AUW · Greece

Most frequent locator attributed to CT1DHX

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 · 23 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,737 km (approx.)
Last such locator decoded: 2026-10-31 15:06 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	CT1DHX S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-31 15:08	10m	-12 / -	SQ8XY	- / -8	2	✓ Closing fragment
10-31 15:06	10m	-15 / -	IK6BSN	- / -	3	✓ Closing fragment
10-31 15:01	10m	-16 / -	5R8IC	- / -	8	✓ Closing fragment
10-31 14:18	10m	-7 / -	5R8IC	- / -	6	Partial capture
10-31 12:51	10m	-14 / -	C5R	- / -4	5	Partial capture
10-31 12:39	10m	-21 / -	C5R	- / -	3	Partial capture
10-31 12:37	10m	-17 / -	SV3AUW	- / -3	3	✓ Closing fragment
10-31 12:35	10m	-15 / -	SM7TZK	- / -16	3	✓ Closing fragment
10-31 12:31	10m	-17 / -	DL6BAD	- / -11	2	✓ Closing fragment
10-31 12:29	10m	-16 / -5	OD5ZZ	-16 / +4	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
142015  -7 1769  5R8IC CT1DHX IM58 (x10)
150630 -15 1769  IK6BSN CT1DHX IM58 (x3)
150830 -12 1769  SQ8XY CT1DHX -08 (x2)

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