CT4KQ — 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: IN60

Receiver-side FT8 activity involving CT4KQ, decoded by SO8OO in southeastern Poland. 821 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 20 UTC dates in the available aggregate history. Observed between 2026-06-07 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 821 FT8 messages attributed to CT4KQ as the transmitting token by decoded message structure across 20 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (52%), followed by 40 m (19%) and 80 m (15%). The busiest six-hour window was 10:00-16:00 UTC, containing 47% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

821

Messages attributed

UTC dates decoded

133

Active 15-min windows

-12 dB

Estimated median S/N

Bands

80m · 124 40m · 154 20m · 116 10m · 427

First attributed message: 2026-06-07
Last attributed message: 2026-10-21 13:46 UTC

Observed FT8 message patterns

Attributed sample: 821 messages
Active dates: 20 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -20 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 242, moderate (-15 to -9 dB) 328, strong (≥ -8 dB) 251.

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 CT4KQ in decoded directed-looking exchanges:

KG4OJT · Guantanamo Bay ×2 9K2GR · Kuwait BG4UCZ · China DN9BLN · Fed. Rep. of Germany ES4TIX · Estonia ES6RMR · Estonia EU6AX · Belarus HA8IH · Hungary HA8UM · Hungary IT9GOT · Sicily K0JCE · United States K4VSS · United States

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 CT4KQ

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: IN60 · 614 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,467 km (approx.)
Last such locator decoded: 2026-10-21 13:46 UTC

Other locator fields attributed to this token: IN50 (9).

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	CT4KQ S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 08:23	40m	- / -13	GU0SUP	-4 / -	2	✓ Closing fragment
10-22 08:23	40m	- / -	F1HFP	-11 / -	15	Partial capture
10-22 07:44	40m	- / 0	GJ0KYZ	-6 / -	3	Partial capture
10-22 07:40	40m	- / -11	ON6DZ	-16 / -	2	Partial capture
10-22 07:38	40m	- / -	ON4KEB	-10 / -	3	Partial capture
10-21 13:45	10m	-13 / -	K4VSS	- / -	2	Partial capture
10-21 13:39	10m	-14 / -	KN6RO	- / -	5	Partial capture
10-21 13:36	10m	0 / -	UY5QB/A	- / -	5	Partial capture
10-21 13:33	10m	-15 / -	7Z1IS	- / -	4	Partial capture
10-21 13:30	10m	-4 / -	PY2ZYV	- / -	4	Partial capture
10-21 13:27	10m	-6 / -	PU2PZE	- / -7	5	✓ Closing fragment
10-21 11:25	10m	-18 / -	9K2GR	-21 / -	5	✓ Closing observed
10-21 11:02	10m	-11 / -	A71QQ	- / -	5	Partial capture
10-21 10:58	10m	-14 / -	<...>	- / -	4	Partial capture
10-21 10:47	10m	-4 / -	PY2ZYV	- / -	2	Partial capture
10-21 10:43	10m	-19 / -	PY4LFP	- / -	3	Partial capture
10-21 10:39	10m	-21 / -	PY5JO	- / -	3	Partial capture
10-21 10:31	10m	-9 / -	BD3CT	- / -	3	Partial capture
10-21 09:54	10m	-15 / -	EP2AES	- / -	3	Partial capture
10-21 09:49	10m	-8 / -	PY5CAM	- / -	3	Partial capture
10-21 09:47	10m	-11 / -	4L7T	- / -	3	Partial capture
10-19 22:42	40m	-12 / -	KB1FJC	- / +10	2	Partial capture
10-19 22:36	40m	-6 / -	BG2ATH	- / -	5	Partial capture
10-19 22:35	40m	- / -14	7Z1BQ	-15 / -	4	Partial capture
10-19 22:33	40m	-6 / -	BV2NF	- / -	5	Partial capture
10-19 22:31	40m	-11 / -	7Z1BQ	- / -	3	Partial capture
10-19 22:27	40m	-10 / -	NT8Z	- / +6	5	Partial capture
10-19 22:26	40m	- / -16	IK4TVP	-20 / -	3	Partial capture
10-19 22:22	40m	-9 / -	N5WXB	- / 0	6	✓ Closing fragment
10-19 22:19	40m	-16 / -13	EX7CQ	-8 / -	4	✓ Closing observed
10-19 22:15	40m	-13 / -	A61DD	- / -	3	Partial capture
10-19 03:22	40m	-7 / -	HF37KJP	- / -	3	Partial capture
10-19 02:23	40m	-16 / -	A65DF	- / -	2	Partial capture
10-19 02:11	40m	-6 / -16	HI8ML	-2 / +6	4	✓ Full exchange observed
10-19 00:10	40m	-10 / -	HJ1BNL	- / -	3	Partial capture
10-18 12:15	10m	-12 / -	KQ4KDU	- / -	4	Partial capture
10-18 12:12	10m	-16 / -	PD1SL	- / -	5	Partial capture
10-18 12:10	10m	-15 / -	TA2VUZ	- / -10	3	✓ Closing fragment
10-18 12:08	10m	-17 / -	SP5PW	- / +3	3	✓ Closing fragment
10-18 12:07	10m	-11 / -	R3KIT	- / -	3	✓ Closing fragment
10-18 12:04	10m	-10 / -	OK1TNM	- / -7	5	Partial capture
10-18 12:01	10m	-19 / -	YO8ROM	- / +9	3	✓ Closing fragment
10-18 12:00	10m	-21 / -	OV1MF	- / -	3	✓ Closing fragment
10-18 11:57	10m	-19 / -	R6OP	- / -	3	Partial capture
10-18 11:55	10m	-14 / -	DN9BLN	- / -12	3	✓ Closing fragment
10-18 11:52	10m	-19 / -	R2DP	- / -	3	Partial capture
10-18 11:48	10m	-18 / -	EU6AX	- / -	2	✓ Closing fragment
10-18 11:46	10m	-21 / -	DN9KAY	- / -	5	Partial capture
10-18 11:44	10m	-9 / -	HA8UM	- / +10	3	✓ Closing fragment
10-18 11:42	10m	-6 / -	RT8T	- / -	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
082330 -10 1425  CT4KQ F1HFP JN28
082400  -2 2792  CT4KQ GU0SUP RR73
082400 -11 1425  CT4KQ F1HFP JN28 (x13)

10m

UTC    dB Audio  Message
133400 -18 1858  7Z1IS CT4KQ IN60 (x3)
133615  +7 2867  UY5QB/A CT4KQ IN60 (x5)
133900 -14 1389  KN6RO CT4KQ IN60 (x5)
134530  -9 2324  K4VSS CT4KQ IN60 (x2)

80m

UTC    dB Audio  Message
003845 -13  300  DA6JH CT4KQ IN60
004000  -5  302  CT4KQ DA6JH -13
004015  -5  300  DA6JH CT4KQ IN60
004030  -2  302  CT4KQ DA6JH -13
004200 -24  999  CT4KQ G8FAT RRR
004230  -4  565  CT4KQ DK8HC JO42 (x3)
004500 -14 2146  EA3E CT4KQ IN60
004515  +1 2149  CT4KQ EA3E -07
004530 -16 2150  EA3E CT4KQ R+04
004545  -2 2149  CT4KQ EA3E RR73
004600  -4 2149  EA3E CT4KQ 73
004645  -7 1915  CT4KQ G0DWV JO02 (x2)

20m

UTC    dB Audio  Message
182015 -12 2084  CT4KQ UN3P -24
182745  -5 2344  BG7BMG CT4KQ IN60 (x2)
192515 -13 1511  CO8LY CT4KQ IN60 (x2)
193015  -2 2624  BG7BVP CT4KQ IN60
194345 -11 1233  BD8ABR CT4KQ IN60 (x2)
200715  -6 2071  YB5SD CT4KQ IN60 (x4)
202215  -4 1031  LY2TS CT4KQ IN60 (x3)

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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