HJ3ZOM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Colombia Most frequent locator attributed to this token: FJ24

Receiver-side FT8 activity involving HJ3ZOM, decoded by SO8OO in southeastern Poland. 198 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-26 and 2026-08-29.

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 198 FT8 messages attributed to HJ3ZOM as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (96%), followed by 40 m (4%). 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 -8 dB.

Overview

198

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

40m · 7 20m · 191

First attributed message: 2026-08-26
Last attributed message: 2026-08-29 00:53 UTC

Observed FT8 message patterns

Attributed sample: 198 messages
Active dates: 4 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -14 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 75, strong (≥ -8 dB) 110.

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 HJ3ZOM in decoded directed-looking exchanges:

4Z5AY · Israel 9A4ZM · Croatia CO6NW · Cuba CT2HEX · Portugal EA4ITM · Spain EA5W · Spain EA7KGJ · Spain EC3A · Spain F1PBZ · France F5RRS · France G7MYR · England HA1BF · Hungary

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 HJ3ZOM

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: FJ24 · 66 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 10,108 km (approx.)
Last such locator decoded: 2026-08-29 00:11 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	HJ3ZOM S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-29 00:50	20m	-7 / -	K5RSB	- / -	7	Partial capture
08-29 00:04	20m	- / -6	EA5W	+13 / -	9	✓ Closing fragment
08-29 00:00	20m	- / -14	SP5ES	-6 / -	2	Partial capture
08-28 23:48	20m	- / -	YO4FZV	-18 / -	2	✓ Closing fragment
08-28 23:44	20m	- / -	DL2DAY	-15 / -	3	Partial capture
08-28 23:05	20m	- / -17	HP1RY	-7 / -	3	✓ Closing fragment
08-28 23:01	20m	-8 / -	IZ8EYN	- / -15	4	Partial capture
08-28 22:57	20m	-6 / -	ON4LDZ	- / -9	2	Partial capture
08-28 22:56	20m	-7 / -	PD0RCQ	- / -11	3	Partial capture
08-28 22:54	20m	-8 / -	IK4YHJ	- / -13	3	Partial capture
08-28 22:52	20m	- / -	HB9DDS	-3 / -	6	Partial capture
08-28 22:42	20m	-4 / -	SP5TZP	- / -6	4	Partial capture
08-28 22:41	20m	-3 / -	G7MYR	- / -	2	✓ Closing fragment
08-28 22:37	20m	-1 / -	CO6NW	-14 / -8	9	✓ Closing observed
08-28 22:36	20m	- / -	HB9DDS	-1 / -	18	Partial capture
08-28 22:35	20m	-6 / -	SM7HZK	- / -1	2	✓ Closing fragment
08-28 22:34	20m	- / -12	G8GDS	-3 / -	5	Partial capture
08-28 22:33	20m	-6 / -	DL9DAJ	- / -10	2	Partial capture
08-28 22:30	20m	-6 / -9	HI8CQ	+4 / +3	6	✓ Full exchange observed
08-28 22:29	20m	-7 / +5	NQ5L	-15 / -2	3	Partial capture
08-28 22:27	20m	-6 / -	N3GTY	- / -8	2	Partial capture
08-28 22:26	20m	- / -15	G8GDS	-7 / -	5	Partial capture
08-28 22:23	20m	-4 / -	PD1BW	- / -11	5	✓ Closing fragment
08-28 22:21	20m	-4 / -	OK2CNI	-11 / -	3	Partial capture
08-28 22:19	20m	-7 / -6	I5HLK	-6 / -7	5	✓ Full exchange observed
08-28 22:12	20m	- / -	EB3JT	+16 / -	6	Partial capture
08-28 22:11	20m	-3 / -18	PY5AQ	-13 / -15	3	✓ Full exchange observed
08-28 22:04	20m	- / -	DL2DAY	-4 / -	4	Partial capture
08-28 22:02	20m	-4 / -	R2BNC	- / -12	3	Partial capture
08-28 22:01	20m	-2 / -24	EA7KGJ	+2 / -	9	✓ Closing observed
08-28 22:00	20m	-8 / -	DK1UJ	- / -7	3	Partial capture
08-28 22:00	20m	- / -	DH2RL	-4 / -	2	Partial capture
08-28 22:00	20m	- / -	EB3JT	+17 / -	2	Partial capture
08-28 21:56	20m	-8 / -	UA3AVY	- / +2	2	Partial capture
08-28 21:54	20m	- / -	ON3AVT	-6 / -	10	Partial capture
08-28 21:53	20m	- / -	KB3Z	+5 / -	6	Partial capture
08-28 21:47	20m	- / -	PD0RCQ	-4 / -	5	Partial capture
08-28 21:43	20m	-11 / -	SP4JAW	- / -	3	✓ Closing fragment
08-28 21:40	20m	- / -	DH2RL	-7 / -	4	Partial capture
08-28 21:38	20m	-11 / -	9A4ZM	-13 / -7	4	✓ Closing observed
08-28 21:33	20m	-10 / -	IT9LCC	- / -7	3	Partial capture
08-28 21:26	20m	-9 / -10	4Z5AY	+1 / -11	23	✓ Full exchange observed
08-28 21:26	20m	-5 / -	F4JZW	- / -4	7	Partial capture
08-28 21:23	20m	-6 / -7	F5RRS	0 / -	4	✓ Closing observed
08-28 21:23	20m	- / -18	G8GDS	-10 / -	2	Partial capture
08-28 21:13	20m	-11 / -	HI3RRR	- / -	2	Partial capture
08-28 13:03	20m	- / -19	RG5A	+7 / -	4	Partial capture
08-28 13:01	20m	- / -17	RY7G	-1 / -	3	✓ Closing fragment
08-28 01:54	40m	- / -9	RA3TKS	+6 / -	2	Partial capture
08-28 01:54	40m	- / -16	RW9WT	-2 / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
000615 +12  858  HJ3ZOM EA5W IM97 (x6)
001000 -10  539  CQ HJ3ZOM FJ24 (x2)
005000 -24  540  K5RSB HJ3ZOM RRR (x7)

40m

UTC    dB Audio  Message
015000  +3  730  HJ3ZOM TA3NK KM39
015015 -13  729  S52D HJ3ZOM +03
015145 -12  729  CQ HJ3ZOM FJ24
015200  -1  729  HJ3ZOM F4GTB JN18
015215 -12  730  YO4NF HJ3ZOM R-14
015230  -2  729  HJ3ZOM F4GTB JN18
015245 -11  730  YO4NF HJ3ZOM 73
015345 -11  730  KF2RR HJ3ZOM 73
015400  -7 1231  HJ3ZOM RW9WT LO64 (x2)
015430  +5 2975  HJ3ZOM RA3TKS -09
015500  +2  731  HJ3ZOM RW9WT LO64
015500  +6 2975  HJ3ZOM RA3TKS -09
015530 -19 1529  HJ3ZOM UT5ZC KN57
015530  +1  731  HJ3ZOM RW9WT R-16

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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