CR7CBH — 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: IM59

Receiver-side FT8 activity involving CR7CBH, decoded by SO8OO in southeastern Poland. 128 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-17.

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 128 FT8 messages attributed to CR7CBH as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (43%), followed by 40 m (37%) and 80 m (19%). Most decodes (80%) fell within the six-hour window 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

128

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 24 60m · 1 40m · 47 20m · 55 10m · 1

First attributed message: 2026-06-07
Last attributed message: 2026-09-17 23:21 UTC

Observed FT8 message patterns

Attributed sample: 128 messages
Active dates: 15 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -20 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 32, moderate (-15 to -9 dB) 46, strong (≥ -8 dB) 50.

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 CR7CBH in decoded directed-looking exchanges:

KA4DQJ · United States ×2 7Z1BQ · Saudi Arabia DJ0MAB · Fed. Rep. of Germany F5LMJ · France K5MGY · United States KE8UOH · United States LA2GCA · Norway LA6RJA · Norway M0SCK · England MD0CCE · Isle of Man OE6TNO · Austria OH7BDI · Finland

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 CR7CBH

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: IM59 · 66 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,670 km (approx.)
Last such locator decoded: 2026-09-17 23:21 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	CR7CBH S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-17 23:20	40m	-4 / -	HK1E	- / -	4	Partial capture
09-17 23:18	40m	-6 / -	HS5XWY	- / -	4	Partial capture
09-17 23:14	40m	-4 / -	KE9END	- / -12	7	Partial capture
09-17 23:11	40m	-7 / -	KE9END	- / -	2	Partial capture
09-17 23:06	40m	-6 / -	KC1ERO	- / -5	3	✓ Closing fragment
09-17 23:04	40m	-5 / -	YL3AQI	- / +2	3	✓ Closing fragment
09-17 23:02	40m	-6 / -17	HZ1TT	-1 / -5	8	✓ Full exchange observed
09-17 23:01	40m	-6 / -	OA4ENG	- / -	2	Partial capture
09-17 22:58	40m	-6 / -	KA4DQJ	- / -25	4	✓ Closing fragment
09-17 22:57	40m	-6 / -	YO6LM	- / -11	2	✓ Closing fragment
09-17 22:52	40m	-6 / -	RA0SCA	- / -5	2	Partial capture
09-17 22:50	40m	-3 / -	TN8GD	- / -4	3	✓ Closing fragment
09-17 22:49	80m	- / -	9A4ZM	+14 / -	2	Partial capture
09-17 22:43	60m	- / -7	DA0O	-11 / -	2	✓ Closing fragment
09-17 22:38	60m	- / -6	LA9JKA	-8 / -	2	✓ Closing fragment
09-17 22:38	60m	- / -7	IK1BQD	-6 / -	6	✓ Closing fragment
09-17 22:36	60m	- / -1	OH3JF	+9 / -	2	✓ Closing fragment
09-17 22:36	60m	- / -9	DH8BAO	+2 / -	3	Partial capture
09-17 22:33	60m	- / -10	DL1CC	-8 / -	2	✓ Closing fragment
09-17 22:31	60m	- / -7	TF8KW	-10 / -	2	✓ Closing fragment
09-17 22:30	60m	- / -	OG6N	-7 / -	2	✓ Closing fragment
09-17 22:28	60m	- / +1	PC2J	-7 / -	5	✓ Closing fragment
09-17 22:24	60m	- / 0	EA1IOK	+2 / -	5	✓ Closing fragment
09-17 22:22	60m	- / -11	VE1YX	-18 / -	2	✓ Closing fragment
08-31 14:08	20m	-10 / -	KL7TC	- / -17	2	Partial capture
08-31 13:40	20m	- / -6	M0SCK	-2 / -	3	✓ Closing fragment
08-31 13:38	20m	- / -	DL1UDO	-8 / -	3	Partial capture
08-31 12:31	20m	-13 / -	ON1DGN	-12 / -	2	✓ Closing observed
08-31 12:28	20m	- / -	LA6RJA	-2 / -	2	✓ Closing fragment
08-31 12:20	20m	- / -2	ON3MOH	+13 / -	3	✓ Closing fragment
08-31 12:16	20m	- / -	PD0PWH	+12 / -	3	Partial capture
08-31 12:10	20m	-13 / -	DL1R	+6 / -18	10	Partial capture
08-31 12:07	20m	- / -9	F5LMJ	-10 / -	2	✓ Closing fragment
08-31 12:06	20m	- / -18	RL1B	-9 / -	2	✓ Closing fragment
08-31 12:05	20m	-14 / -20	PE1NPS	-6 / -2	5	✓ Full exchange observed
08-31 12:03	20m	- / -	F5IXN	+9 / -	4	Partial capture
08-25 19:58	20m	-8 / -	KI5POE	- / -	2	Partial capture
08-23 21:54	20m	-17 / -14	7Z1BQ	-10 / -	4	✓ Closing observed
08-23 21:48	20m	-15 / -21	JA5CPJ	-6 / -7	6	Partial capture
08-23 21:47	20m	- / -	JM1GAW	-20 / -	2	Partial capture
08-23 21:46	20m	-17 / -	N2BG	- / -	2	Partial capture
08-23 21:43	20m	-14 / -	LU2CHP	- / -	2	Partial capture
08-23 21:40	20m	-10 / -10	TJ1GD	-13 / -	3	Partial capture
08-23 21:35	20m	-11 / -	XU7O	- / -	2	Partial capture
08-23 21:31	20m	-10 / -	KE8UOH	- / -11	5	✓ Closing fragment
08-16 14:44	20m	- / -4	MD0CCE	+9 / -	2	✓ Closing fragment
08-09 21:22	80m	-20 / -14	IV3FSG	+12 / -	4	✓ Closing observed
08-09 21:10	80m	-22 / -20	C31KC	-15 / -3	5	✓ Full exchange observed
08-09 21:01	80m	- / -16	OE8DDX	+13 / -	2	✓ Closing fragment
08-09 20:49	80m	-24 / -	UA4FKT	+4 / -10	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
231445  -3  743  KE9END CR7CBH IM59 (x7)
231815  -6  743  HS5XWY CR7CBH IM59 (x4)
232015  -5  743  HK1E CR7CBH IM59 (x4)

80m

UTC    dB Audio  Message
210200 +14  611  CR7CBH OE8DDX RR73
211030 -23 1140  C31KC CR7CBH IM59
211115 -15 1381  CR7CBH C31KC -20
211130 -24 1139  C31KC CR7CBH R-03
211145 -15 1381  CR7CBH C31KC RR73
211200 -18 1139  C31KC CR7CBH 73
212245 -18 1139  IV3FSG CR7CBH IM59
212300 +13  688  CR7CBH IV3FSG -14 (x2)
212345 -23 1140  IV3FSG CR7CBH 73
212745  +2 1140  CR7CBH <...> -09
233900  -5  784  S55X CR7CBH IM59
233930 -11  784  N1WI CR7CBH IM59
224930 +17 1112  CR7CBH 9A4ZM JN86 (x2)

60m

UTC    dB Audio  Message
223600  +3 2753  CR7CBH DH8BAO -09 (x2)
223645  +8 2472  CR7CBH OH3JF -01
223700  +3 2753  CR7CBH DH8BAO -09
223715 +10 2472  CR7CBH OH3JF RR73
223815  -5  231  CR7CBH IK1BQD JN35
223845 -10 1409  CR7CBH LA9JKA -06
223845  -5  231  CR7CBH IK1BQD JN35
223915  -6 1409  CR7CBH LA9JKA RR73
223915  -7  231  CR7CBH IK1BQD JN35 (x4)
224300  -9 1409  CR7CBH DA0O -07 (x2)

20m

UTC    dB Audio  Message
122515  +5 2618  CR7CBH LA2XNA R-06
122815  +0 1022  CR7CBH LA6RJA +12 (x2)
123030 -15 2616  CQ CR7CBH IM59
123145 -12 1613  CR7CBH ON1DGN RR73
123200 -13 2616  ON1DGN CR7CBH 73
133845  -6 1502  CR7CBH DL1UDO JO31 (x3)
134015  -5 2622  CR7CBH M0SCK IO83 (x3)
140500  -7 2619  KL7TC CR7CBH IM59 (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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