CT7BQH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Portugal Most frequent locator attributed to this token: IM57

Receiver-side FT8 activity involving CT7BQH, decoded by SO8OO in southeastern Poland. 103 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-18.

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 103 FT8 messages attributed to CT7BQH as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (46%), followed by 40 m (46%) and 20 m (8%). Most decodes (99%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

103

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

80m · 47 40m · 47 20m · 8 10m · 1

First attributed message: 2026-06-07
Last attributed message: 2026-09-18 22:40 UTC

Observed FT8 message patterns

Attributed sample: 103 messages
Active dates: 14 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -17 to +6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 19, moderate (-15 to -9 dB) 28, strong (≥ -8 dB) 56.

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 CT7BQH in decoded directed-looking exchanges:

TN8GD · Republic of the Congo ×2 R3KIZ · European Russia ×2 S55A · Slovenia 4O4DB · Montenegro R2FAQ · Kaliningrad 5A1AL · Libya BA6IM · China BG7BVI · China BI4IWL · China F5PBG · France F6FHZ · France JA8EPO · Japan

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 CT7BQH

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: IM57 · 11 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,806 km (approx.)
Last such locator decoded: 2026-09-08 21:49 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	CT7BQH S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 22:39	40m	-1 / -	KB4C	- / -18	2	✓ Closing fragment
09-18 22:36	40m	+1 / -	5A1AL	- / -9	3	✓ Closing fragment
09-15 05:56	80m	- / -	ON7HM	-14 / -	2	✓ Closing fragment
09-15 05:52	80m	- / +1	ON7HM	-16 / -	2	Partial capture
09-09 21:09	40m	-2 / -	D44TWO	- / -7	2	Partial capture
09-09 21:05	40m	- / -8	RC9WC	-14 / -	3	Partial capture
09-09 21:02	40m	-5 / -10	JE6AVT	0 / -8	6	✓ Full exchange observed
09-09 20:59	40m	-6 / -3	F5PBG	+1 / -	3	✓ Closing observed
09-08 21:51	40m	+4 / -	BA6IM	- / -15	2	✓ Closing fragment
09-08 21:48	40m	+6 / -	TM35DCM	- / -13	3	Partial capture
09-08 21:44	40m	+8 / -	BG7BVI	- / -14	3	✓ Closing fragment
09-08 21:40	40m	+6 / -	Z68PX	- / -9	3	✓ Closing fragment
09-08 21:39	40m	+6 / -	VK6BAD	- / -16	2	✓ Closing fragment
09-04 21:49	80m	- / -8	DU2W	-12 / -	2	✓ Closing fragment
08-31 19:30	40m	+1 / -7	US2UM	+12 / -8	5	✓ Full exchange observed
08-31 19:28	40m	-3 / -	TN8GD	- / -15	3	✓ Closing fragment
08-22 23:11	80m	-14 / -3	UF3T	+7 / -4	7	✓ Full exchange observed
08-22 23:10	80m	- / -19	PE1NPS	+3 / -	3	✓ Closing fragment
08-22 23:07	80m	-10 / -2	VP8A	-6 / -8	3	Partial capture
08-19 20:33	20m	-3 / -	R2FAQ	- / -15	2	✓ Closing fragment
08-19 20:32	20m	-6 / -9	4O4DB	-6 / -	3	✓ Closing observed
08-16 19:55	80m	-18 / -5	DK0RA/LH	+5 / -13	4	Partial capture
08-16 19:51	80m	-11 / -6	RX3DPK/LH	-3 / -19	2	Partial capture
08-16 19:39	40m	-8 / -	F6FHZ	-12 / -	2	✓ Closing observed
08-16 19:38	40m	-5 / -	BI4IWL	- / +5	2	✓ Closing fragment
08-16 19:36	40m	-10 / -	R1AI	- / -3	2	Partial capture
08-16 19:32	40m	-3 / -	<...>	- / -	3	Partial capture
08-16 17:25	10m	- / -6	YO9HP	-10 / -	2	Partial capture
08-12 20:01	80m	-6 / -	TN8GD	- / -21	2	✓ Closing fragment
08-12 12:53	10m	- / -6	S55A	-17 / -	3	✓ Closing fragment
08-08 21:43	80m	-12 / -	G8OO	- / -15	2	✓ Closing fragment
08-08 21:42	80m	-10 / -12	PH2M	0 / -	4	✓ Closing observed
08-08 21:40	80m	-15 / -13	R4NBV	-7 / -12	5	✓ Full exchange observed
08-08 21:38	80m	-10 / -15	R3KIZ	+1 / -16	5	✓ Full exchange observed
08-08 21:38	80m	-14 / -16	DO9BAU	+6 / -12	5	✓ Full exchange observed
08-08 21:36	80m	-13 / -	LY1DY	+12 / -15	6	✓ Closing observed
08-08 21:29	80m	- / -15	OE/DJ1MV	+12 / -	2	Partial capture
08-08 21:26	80m	-11 / -4	8S7DL	-2 / -11	7	✓ Full exchange observed
08-08 21:13	80m	-10 / -	8S7DL	- / -14	3	Partial capture
08-08 21:08	80m	-16 / -	CU3EM	-12 / -6	2	✓ Closing observed
08-06 20:59	40m	-5 / -	EP2AES	- / -18	2	Partial capture
08-05 21:57	80m	-23 / -	PY5XT	- / -10	2	✓ Closing fragment
08-05 21:36	80m	-19 / -2	DK5WL	-5 / -14	10	✓ Full exchange observed
08-05 21:36	80m	-17 / -	CR5VP	-14 / -	3	✓ Closing observed
08-05 21:34	80m	-17 / -	TF4M	-2 / -5	5	✓ Full exchange observed
08-05 21:31	80m	-19 / -11	RO2X	+11 / -14	5	✓ Full exchange observed
08-05 21:30	80m	-18 / -	CR5VP	- / -3	2	Partial capture
08-05 20:13	80m	- / -19	S52D	+2 / -	3	✓ Closing fragment
08-05 19:58	80m	-24 / -13	RY3K	+5 / -	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
210500  +0 2865  CT7BQH JE6AVT R-10
210515  -6 2584  JE6AVT CT7BQH RR73
210530 -16 1783  CT7BQH RC9WC -08
210530  -1 2865  CT7BQH JE6AVT 73
210600 -15 1783  CT7BQH RC9WC -08 (x2)
210630  +0 2584  D44TWO CT7BQH -05 (x4)
223645  +0 2601  5A1AL CT7BQH -09 (x3)
223945  -4 2601  KB4C CT7BQH -18 (x2)

80m

UTC    dB Audio  Message
231115  +8 1275  CT7BQH UF3T LO16
231130  +3 2501  CT7BQH PE1NPS 73
231145  +7 1275  CT7BQH UF3T LO16 (x2)
231230 -11 1762  UF3T CT7BQH -04
231245  +8 1274  CT7BQH UF3T R-03
231300 -17 1762  UF3T CT7BQH RR73
231315  +5 1274  CT7BQH UF3T 73
214915 -11  959  CT7BQH DU2W R-08 (x2)
215230 -13 2745  PU2STQ CT7BQH R-21
055230 -16 2369  CT7BQH ON7HM JO10 (x4)

20m

UTC    dB Audio  Message
203230 -11 3072  CT7BQH 4O4DB R-09
203245  -6 2978  4O4DB CT7BQH RR73
203300  +0 2978  CT7BQH 4O4DB R-09
203315  -4 2978  R2FAQ CT7BQH -15 (x2)
203545  -3 2978  4O4DB CT7BQH 73
203645  -2 2978  TJ1GD CT7BQH -18
203930  -4 2995  LY2TS CT7BQH -10 (x2)

10m

UTC    dB Audio  Message
183330  -8 2747  OH0ERF CT7BQH -09
125330 -15 1331  CT7BQH S55A JN65 (x3)
172500 -11  682  CT7BQH YO9HP -06 (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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