OH7JJT — 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: KP52

Receiver-side FT8 activity involving OH7JJT, decoded by SO8OO in southeastern Poland. 18 FT8 messages attributed to this token as transmitter, on 160m, 60m, across 5 UTC dates in the available aggregate history. Observed between 2026-10-04 and 2026-10-19.

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 18 FT8 messages attributed to OH7JJT as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (56%), followed by 60 m (44%). In this small sample, the estimated median decoder S/N was -18 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-18 dB

Estimated median S/N

Bands

160m · 10 60m · 8

First attributed message: 2026-10-04
Last attributed message: 2026-10-19 20:45 UTC

Observed FT8 message patterns

Attributed sample: 18 messages
Active dates: 5 UTC dates
Estimated median S/N: -18 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 4.

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 OH7JJT in decoded directed-looking exchanges:

LY8O · Lithuania OH7MFO · Finland RK4F · European Russia SM2LIY · Sweden YL3CW · Latvia F5PBG · France M0GDX · England SP4HXV · Poland

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 OH7JJT

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: KP52 · 8 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,505 km (approx.)
Last such locator decoded: 2026-10-14 18:37 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	OH7JJT S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-31 16:06	160m	- / -5	SM2LIY	0 / -	2	✓ Closing fragment
10-31 16:05	160m	- / -	SV8DCY	-4 / -	2	Partial capture
10-16 17:01	160m	- / -3	LY8O	-18 / -	2	✓ Closing fragment
10-07 16:37	60m	-8 / -	SM6HUB	- / -	2	Partial capture
10-07 16:22	60m	- / -	DK6XY	0 / -	6	Partial capture
10-07 16:22	60m	-9 / -2	SP4HXV	+4 / -	4	✓ Closing observed
10-07 16:22	60m	-8 / -	F5PBG	-12 / -4	3	✓ Closing observed
10-07 16:21	60m	-8 / -5	M0GDX	-14 / +4	5	✓ Full exchange observed
10-05 17:20	160m	-16 / -	LZ2IP	- / -	2	Partial capture
10-05 17:18	160m	-18 / -11	RK4F	-16 / -	4	✓ Closing observed
10-05 17:14	160m	-22 / +1	YL3CW	+10 / -	3	✓ Closing observed
10-04 16:43	160m	- / -	ES8JX	-11 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
171845 -15 1189  OH7JJT RK4F LO23 (x2)
171930 -18 1021  RK4F OH7JJT RR73
171945 -19 1189  OH7JJT RK4F 73
172045 -20 1021  LZ2IP OH7JJT KP52 (x2)
183730 -18 1083  LY1SR OH7JJT KP52
165115 -20 1081  OH7JJT OH7MFO RR73
170145 -17 1323  OH7JJT LY8O R-03 (x2)
204500 -20 1375  SM2LKW OH7JJT R+15
160515  -5 2611  OH7JJT SV8DCY KM39 (x2)
160600  +0 1203  OH7JJT SM2LIY -05 (x2)

60m

UTC    dB Audio  Message
162215 -12  960  OH7JJT F5PBG IN78
162230  -9  961  F5PBG OH7JJT -04
162245  +6  750  OH7JJT SP4HXV -02
162245  -2  382  OH7JJT DK6XY JO53
162300  -7  961  F5PBG OH7JJT RR73
162315  +4  750  OH7JJT SP4HXV +00
162315  +2  382  OH7JJT DK6XY JO53
162345  +3  750  OH7JJT SP4HXV RR73
162345  -3  381  OH7JJT DK6XY JO53
162400  -9  961  SP4HXV OH7JJT 73
162415  +0  382  OH7JJT DK6XY JO53 (x3)
163700  -6  962  SM6HUB OH7JJT +12 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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