HI5MAH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Dominican Republic Most frequent locator attributed to this token: FK48

Receiver-side FT8 activity involving HI5MAH, decoded by SO8OO in southeastern Poland. 146 FT8 messages attributed to this token as transmitter, on 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-07 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 146 FT8 messages attributed to HI5MAH as the transmitting token by decoded message structure across 9 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. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

146

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

20m · 146

First attributed message: 2026-06-07
Last attributed message: 2026-08-28 00:00 UTC

Observed FT8 message patterns

Attributed sample: 146 messages
Active dates: 9 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -19 to -11 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 71, moderate (-15 to -9 dB) 73, strong (≥ -8 dB) 2.

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 HI5MAH in decoded directed-looking exchanges:

R7DX · European Russia ×2 7Z1BQ · Saudi Arabia 9K2GR · Kuwait F4ACR · France F8FUA · France JY5IB · Jordan K3WVU · United States KB1JWG · United States KD9ZHF · United States KK5CK · United States LY5A · Lithuania NO8O · United States

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 HI5MAH

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: FK48 · 69 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,639 km (approx.)
Last such locator decoded: 2026-08-28 00:00 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	HI5MAH S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-09 00:58	40m	- / -	HK4QXX	-22 / -	2	Partial capture
09-08 00:49	40m	- / -	IZ5IMD	-14 / -	2	Partial capture
09-08 00:45	40m	- / -	SV1MOZ	+2 / -	4	Partial capture
09-08 00:43	40m	- / -	IZ5IMD	-15 / -	2	Partial capture
09-05 01:25	40m	- / -	RL9LR	+4 / -	2	Partial capture
09-05 01:17	40m	- / -14	RX9WN	-7 / -	3	✓ Closing fragment
09-05 01:15	40m	- / -	SP5EXA	-10 / -	3	Partial capture
09-02 00:05	40m	- / -	R2PM	-8 / -	2	Partial capture
09-01 02:05	40m	- / -19	F1PBZ	-4 / -	4	Partial capture
08-25 22:26	20m	-23 / -	EU2Q	- / -	4	Partial capture
08-25 22:23	20m	-20 / -	PY2GZ	- / -16	2	Partial capture
08-23 17:06	20m	- / -	F4NGR	+3 / -	2	Partial capture
08-22 01:52	40m	- / -	W1DMM	-19 / -	2	Partial capture
08-22 01:46	40m	- / 0	WK1O	-6 / -	4	✓ Closing fragment
08-22 01:36	40m	- / -	SV1ENV	-8 / -	2	Partial capture
08-22 01:35	40m	- / -	F1IQH	-14 / -	2	Partial capture
08-22 01:08	20m	- / -	IK4LZH	-3 / -	3	Partial capture
08-22 01:06	20m	- / -	US0QV	-11 / -	3	Partial capture
08-21 23:40	20m	- / -	DL2EMU	+6 / -	2	Partial capture
08-21 23:38	20m	- / -	DL1AN	+11 / -	2	Partial capture
08-21 23:33	20m	- / -	F1IQH	-19 / -	2	Partial capture
08-21 01:09	20m	- / -	TA3NK	-12 / -	10	Partial capture
08-21 00:39	20m	-17 / -	R7DX	- / -	4	✓ Closing fragment
08-21 00:26	20m	-16 / -	R7DX	0 / -14	6	Partial capture
08-21 00:16	20m	-13 / -	KD9ZHF	- / -22	18	✓ Closing fragment
08-21 00:11	20m	-16 / -	F8FUA	- / -	3	✓ Closing fragment
08-21 00:05	20m	-12 / -	K4QQG	- / -18	3	Partial capture
08-20 23:55	20m	-14 / -	W4KWS	- / -18	3	✓ Closing fragment
08-20 23:34	20m	-12 / +1	9K2GR	+2 / -12	5	✓ Full exchange observed
08-20 23:32	20m	-12 / -	EA2WX	- / -	3	Partial capture
08-20 23:25	20m	-16 / -	KB1JWG	- / -16	5	✓ Closing fragment
08-20 23:24	20m	- / -	TA3NK	-7 / -	3	Partial capture
08-20 23:22	20m	-13 / -12	7Z1BQ	-3 / -22	3	✓ Full exchange observed
08-20 23:17	20m	-12 / -	W5ATG	- / -11	4	✓ Closing fragment
08-20 23:15	20m	- / -	TA3NK	-8 / -	2	Partial capture
08-20 23:10	20m	- / -	K4RUM	+10 / -	2	Partial capture
08-20 23:10	20m	- / -	TA3NK	-11 / -	6	Partial capture
08-20 01:08	40m	- / -	CT3MD	-7 / -	4	Partial capture
08-20 01:04	40m	- / -11	WP4QIB	-4 / -	4	Partial capture
08-19 23:50	20m	- / -9	PD3HB	-16 / -	2	Partial capture
08-19 23:45	20m	-14 / -10	PA3GDL	-2 / -14	8	✓ Full exchange observed
08-19 23:42	20m	-16 / -	K3WVU	- / -22	2	✓ Closing fragment
08-19 23:35	20m	-17 / -16	TJ1GD	-9 / -18	3	Partial capture
08-19 23:28	20m	- / -14	I3QDK	-2 / -	3	Partial capture
08-19 23:19	20m	-16 / -	S56EPX	- / -22	4	Partial capture
08-19 23:10	20m	-16 / -	KK5CK	- / -19	2	✓ Closing fragment
08-19 23:07	20m	- / -	IU8UVB	-18 / -	2	Partial capture
08-19 23:07	20m	-15 / -3	F4ACR	-10 / -14	3	✓ Closing observed
08-19 23:04	20m	- / -12	F1PBZ	+3 / -	3	Partial capture
08-19 23:01	20m	-16 / -16	UA6CE	-5 / -18	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
011815  -3  964  HI5MAH RX9WN RR73
012515  +2 1272  HI5MAH RL9LR MO27 (x2)
004330 -15 2287  HI5MAH IZ5IMD JN53 (x2)
004500  +4  969  HI5MAH SV1MOZ KM17 (x4)
004930 -10  978  HI5MAH VU2MSA -23
004930 -13 2287  HI5MAH IZ5IMD JN53 (x2)
005845 -21 1657  HI5MAH HK4QXX FJ26 (x3)

80m

UTC    dB Audio  Message
011315 -18  992  HI5MAH K1HC 73

20m

UTC    dB Audio  Message
010945  -2  461  HI5MAH IK4LZH JN54
170615  +3 1945  HI5MAH F4NGR JN33 (x2)
222345 -21 1044  PY2GZ HI5MAH -16 (x2)
222645 -21 1051  EU2Q HI5MAH FK48 (x4)
223215 -24 1034  CQ HI5MAH FK48 (x6)

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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