OH2MA — 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: Finland Most frequent locator attributed to this token: KP31

Receiver-side FT8 activity involving OH2MA, decoded by SO8OO in southeastern Poland. 1,828 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 64 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-20.

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 1,828 FT8 messages attributed to OH2MA as the transmitting token by decoded message structure across 64 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (46%), followed by 60 m (20%) and 40 m (13%). Most decodes (63%) fell within the six-hour window 20:00-02:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (72%); the estimated median was -3 dB.

Overview

1,828

Messages attributed

UTC dates decoded

241

Active 15-min windows

-3 dB

Estimated median S/N

Bands

160m · 233 80m · 832 60m · 361 40m · 246 20m · 153 10m · 3

First attributed message: 2026-06-07
Last attributed message: 2026-10-20 14:07 UTC

Observed FT8 message patterns

Attributed sample: 1,828 messages
Active dates: 64 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -15.3 to +10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 181, moderate (-15 to -9 dB) 328, strong (≥ -8 dB) 1,319.

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 OH2MA in decoded directed-looking exchanges:

VK6IR · Australia ×3 JA6LCJ · Japan ×2 RI1FJL · Franz Josef Land ×2 ON1BH · Belgium ×2 VP8A · Falkland Islands ×2 4J3DJ · Azerbaijan 4L7T · Georgia 7X2TT · Algeria 9A5E · Croatia C37AC · Andorra DG3TF · Fed. Rep. of Germany DK5WL · Fed. Rep. of Germany

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 OH2MA

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: KP31 · 1,113 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,325 km (approx.)
Last such locator decoded: 2026-10-20 14:06 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	OH2MA S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-20 14:05	40m	+4 / -	JD1BQP	- / -14	6	✓ Closing fragment
10-18 20:33	160m	-10 / -	UK8AEA	- / -	9	Partial capture
10-18 19:05	60m	-4 / -	A93MO	- / -10	4	✓ Closing fragment
10-18 19:02	40m	- / -	EA1KCN	-4 / -	2	Partial capture
10-17 21:30	80m	+8 / -	JJ3JHP	- / -	6	Partial capture
10-17 21:27	80m	+4 / -10	R2BQM	-24 / -3	3	✓ Full exchange observed
10-17 21:26	80m	+3 / +1	UX5UO	+15 / -2	6	✓ Full exchange observed
10-17 21:25	80m	+10 / -4	R2EN	-3 / +1	5	✓ Full exchange observed
10-17 21:23	80m	+12 / -	S79VU	- / -15	4	✓ Closing fragment
10-16 18:45	160m	- / -	UI4I	-17 / -	2	Partial capture
10-16 18:43	160m	-10 / -	UA4CKN	- / -14	3	✓ Closing fragment
10-16 18:41	160m	-5 / -	IT9VCE	-13 / -16	4	✓ Closing observed
10-16 18:37	160m	+2 / -	4J3DJ	- / -16	2	✓ Closing fragment
10-16 06:04	60m	-13 / -	PJ4/DH8BQA	- / -	3	Partial capture
10-16 05:15	60m	-16 / -	VP2MAW	- / -8	2	Partial capture
10-14 20:51	160m	- / -	DF7EF	+22 / -	4	Partial capture
10-14 20:51	160m	- / -	IZ8VYF	-8 / -	5	Partial capture
10-14 20:49	160m	-4 / -	YB5QZ	- / -8	4	✓ Closing fragment
10-14 06:46	60m	-22 / 0	OH0KCE	-8 / -	6	✓ Closing observed
10-12 04:02	60m	-18 / -	HI3CH	- / -	12	Partial capture
10-11 19:13	60m	-9 / -	9H6C	- / -6	6	Partial capture
10-11 18:47	60m	-11 / -	9H6C	- / -	4	Partial capture
10-11 16:55	60m	-12 / -	JW9DL	- / -15	5	Partial capture
10-11 16:33	60m	-14 / -	H49A	- / -15	7	Partial capture
10-11 16:24	60m	-12 / -	H49A	- / -	4	Partial capture
10-11 16:19	60m	-14 / -	H49A	- / -	2	Partial capture
10-11 16:07	60m	-13 / -	H49A	- / -	11	Partial capture
10-09 20:13	60m	-8 / -	JW9DL	- / -	6	Partial capture
10-03 23:31	60m	-7 / -	9T0MD	- / -8	7	Partial capture
10-03 22:42	60m	-16 / -	9T0MD	- / -23	13	Partial capture
10-03 22:31	60m	-14 / -	9T0MD	- / -	2	Partial capture
10-03 22:11	60m	- / -	IU5HIU	-5 / -	4	Partial capture
10-03 22:09	60m	-13 / -	9T0MD	- / -	18	Partial capture
10-03 22:05	60m	-6 / -	9T0MD	- / -	4	Partial capture
10-03 01:12	80m	- / -	DK8HC	+6 / -	5	Partial capture
10-03 01:08	80m	+6 / -	V26K	-9 / -5	8	✓ Closing observed
09-30 20:01	80m	+2 / -	KG6JDX	- / -	12	Partial capture
09-26 20:48	160m	+4 / -	JA6LCJ	- / -15	5	✓ Closing fragment
09-26 20:45	160m	+4 / -	JA6QHQ	- / -	5	Partial capture
09-26 20:19	80m	-1 / -	9K2HS	- / -14	14	Partial capture
09-26 20:15	80m	-1 / -	DK6WS	-9 / -9	5	✓ Full exchange observed
09-26 20:11	80m	-1 / -	OH3DJP	- / -	6	Partial capture
09-26 20:08	80m	+4 / -	DO2ANW	-1 / -8	3	✓ Closing observed
09-26 20:06	80m	+4 / -	DO5HOK	- / -	6	Partial capture
09-26 20:04	80m	+4 / -	MM0ULL	- / -11	3	✓ Closing fragment
09-24 20:24	160m	+4 / -	R2DRE	- / -1	4	Partial capture
09-24 20:22	160m	+2 / -	VK6IR	- / -24	3	✓ Closing fragment
09-24 20:07	160m	-1 / -14	C37AC	-18 / -12	7	✓ Full exchange observed
09-23 20:13	160m	-18 / -	JG4NNS	- / -	2	Partial capture
09-22 17:28	160m	-6 / -	SU3YM	- / -	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
031245 -23 1696  OH2MA JY5IB RR73
031615  -4 1261  OH2MA UA4FKT LO23 (x5)
093815 -16 1893  GU4YBW OH2MA KP31
190245  -6 2939  OH2MA EA1KCN IN53 (x2)
140515  +1 2263  JD1BQP OH2MA KP31 (x6)

160m

UTC    dB Audio  Message
184345  -5 2034  UA4CKN OH2MA R-14 (x3)
184530 -19 1821  OH2MA UI4I LO43
184530 -21 1064  OH2MA RA3RDN LO02
184600 -15 1821  OH2MA UI4I LO43
203345 -12 1913  UK8AEA OH2MA KP31 (x9)

60m

UTC    dB Audio  Message
064730 -19 1867  OH0KCE OH2MA KP31 (x2)
064815  -8  534  OH2MA OH0KCE +00
064900 -23 1867  OH0KCE OH2MA 73
051545 -15 1953  VP2MAW OH2MA KP31 (x2)
060415 -13 2249  DD8DR/QRP OH2MA KP31
060445 -11 2248  <PJ4/DH8BQA> OH2MA KP31 (x4)
190530  -6 2081  A93MO OH2MA KP31 (x4)

80m

UTC    dB Audio  Message
212645 +15  694  OH2MA UX5UO KO50 (x2)
212715 -24 1569  OH2MA R2BQM -10
212730  +6 1569  R2BQM OH2MA R-03 (x2)
212815 +13  694  OH2MA UX5UO KO50
212830  +4 1569  UX5UO OH2MA -02
212845 +15  694  OH2MA UX5UO R+01
212900  +2 1569  UX5UO OH2MA RR73
213000  +4 1569  JJ3JHP OH2MA KP31 (x6)

20m

UTC    dB Audio  Message
083500  -4 1842  HL5QY OH2MA -15 (x2)
083700  -8 1842  RA0AN OH2MA R-13 (x3)
083930  -6 1842  HB9RTW OH2MA RR73
083945 -11 2501  OH2MA HB9RTW 73
084530  -4 1842  TA1MB OH2MA R-13
084545 -14 2039  OH2MA TA1MB -16
084600  -8 1842  TA1MB OH2MA R-13
084615  -9 2039  OH2MA TA1MB RR73
084630 -12 1842  TA1MB OH2MA 73
084800 -16 1842  JA1XIA OH2MA -13
084815  -9 2039  OH2MA TA1MB -07
084830 -15 1842  JA1XIA OH2MA RR73

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