N4OHI — 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: United States Most frequent locator attributed to this token: EL87

Receiver-side FT8 activity involving N4OHI, decoded by SO8OO in southeastern Poland. 34 FT8 messages attributed to this token as transmitter, on 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-08-28.

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 34 FT8 messages attributed to N4OHI as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (65%); the estimated median was -17 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-17 dB

Estimated median S/N

Bands

20m · 34

First attributed message: 2026-06-15
Last attributed message: 2026-08-28 23:11 UTC

Observed FT8 message patterns

Attributed sample: 34 messages
Active dates: 7 UTC dates
Estimated median S/N: -17 dB
Estimated 10th-90th percentile: -21 to -8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 22, moderate (-15 to -9 dB) 8, 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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with N4OHI in decoded directed-looking exchanges:

7Z1CZ · Saudi Arabia CT1BFP · Portugal F4LNM · France I6PJC · Italy K0BFG · United States NP4TX · Puerto Rico PD0RCQ · Netherlands PI4DX · Netherlands WI8O · United States OH7MA · Finland K4YT · United States

Most frequent locator attributed to N4OHI

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: EL87 · 15 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,675 km (approx.)
Last such locator decoded: 2026-08-28 23:11 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	N4OHI S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-07 05:34	80m	- / -10	EA1DR	-3 / -	2	Partial capture
09-29 02:02	40m	- / -15	F1PBZ	+1 / -	3	Partial capture
09-29 02:02	40m	- / -	F4BYA	+20 / -	3	Partial capture
09-10 05:41	80m	- / -	F4GUK	-13 / -	2	Partial capture
09-10 05:17	80m	- / -	ON7GB	-4 / -	4	Partial capture
09-10 05:14	80m	- / -18	GM6URC	-24 / -	2	Partial capture
09-01 05:05	40m	- / -	DG1KFR	+5 / -	4	Partial capture
08-28 23:05	20m	-12 / -	W5ART	- / -4	2	Partial capture
08-28 23:05	20m	- / -20	F1PBZ	+9 / -	3	Partial capture
08-28 22:58	20m	- / -	KD2PTV	-20 / -	2	Partial capture
08-28 05:11	20m	- / -15	F4LNM	-10 / -	3	✓ Closing fragment
08-28 01:41	80m	- / -11	K4YT	-21 / -	3	✓ Closing fragment
08-27 22:56	20m	-15 / -	N2LCX	- / -	3	Partial capture
08-27 22:50	20m	-8 / -	WI8O	- / -20	4	✓ Closing fragment
08-27 22:45	20m	- / -	F4BYA	-1 / -	4	Partial capture
08-27 20:07	20m	- / -	PD2XX	-10 / -	2	Partial capture
08-25 22:36	20m	- / -	EA7LES	-17 / -	2	Partial capture
08-22 04:21	20m	- / -20	7Z1CZ	-9 / -	11	✓ Closing fragment
08-22 04:17	20m	- / -	IK4LZH	+4 / -	4	Partial capture
08-22 04:17	20m	- / -	IU5TUG	-5 / -	5	Partial capture
08-22 04:16	20m	- / -	F4VTR	-6 / -	4	Partial capture
08-22 04:09	20m	- / -	IK4LZH	+2 / -	4	Partial capture
08-22 04:03	20m	- / -18	PD0RCQ	-20 / -	7	✓ Closing fragment
08-22 03:56	20m	- / -6	I6PJC	-14 / -	6	✓ Closing fragment
08-21 22:38	20m	- / -	IK4LZH	+6 / -	2	Partial capture
08-21 22:32	20m	-15 / -10	K0BFG	-23 / -	5	✓ Closing observed
08-20 22:23	20m	-20 / -14	CT1BFP	-10 / -4	6	✓ Full exchange observed
08-07 05:54	20m	- / -	CT3MD	-12 / -	3	Partial capture
08-07 05:54	20m	- / -	F4IIX	-8 / -	2	Partial capture
08-05 22:56	20m	- / +1	PI4DX	-19 / -	2	✓ Closing fragment
08-05 22:32	20m	- / -	IK4LZH	-5 / -	3	Partial capture
08-04 22:56	20m	- / -	IK4LZH	-6 / -	4	Partial capture
07-31 22:47	20m	- / -	G0TAA	-15 / -	24	Partial capture
07-27 22:12	20m	- / -10	NP4TX	-18 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
050545  +3  396  N4OHI DG1KFR JO33 (x2)
050645  +6 2396  N4OHI DL3OCF -17
050645  +4  396  N4OHI DG1KFR JO33 (x2)
053345 -11 2592  N4OHI EA5PS IM99
020230 +20 2982  N4OHI F4BYA JN19
020230  +2 2490  N4OHI F1PBZ -15
020300 -21 1339  N4OHI F4EGM JN29
020300 +16 2982  N4OHI F4BYA JN19
020300  +1 2490  N4OHI F1PBZ -15
020330 +23 2981  N4OHI F4BYA JN19
020330  -1 2490  N4OHI F1PBZ -15
055415  -7 1852  N4OHI OH7MA -13 (x2)

80m

UTC    dB Audio  Message
014115 -24 1243  N4OHI K4YT FM19 (x3)
051445  -5 1964  N4OHI ON7GB JO21
051445 -24 1779  N4OHI GM6URC -18 (x2)
051715  -5 1964  N4OHI ON7GB JO21 (x4)
054115 -15  660  N4OHI F4GUK JN18 (x2)
053415  -4 2228  N4OHI EA1DR -10 (x2)

20m

UTC    dB Audio  Message
225730 -13 1318  N2LCX N4OHI EL87 (x2)
051145 -21 2472  N4OHI RA1OD -17
051145  -8 1320  N4OHI F4LNM JN09 (x3)
051445 -15 2471  N4OHI RA1OD -14
225845 -20 2370  N4OHI KD2PTV FN30 (x2)
230515  +9 2778  N4OHI F1PBZ -20
230530 -12 1316  W5ART N4OHI -04
230545  +7 2778  N4OHI F1PBZ -20
230630 -11 1316  W5ART N4OHI -04
230645 +10 2778  N4OHI F1PBZ -09
231115 -17 1318  VA3LG N4OHI EL87

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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