HI8JSA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Dominican Republic Most frequent locator attributed to this token: FK58

Receiver-side FT8 activity involving HI8JSA, decoded by SO8OO in southeastern Poland. 146 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-07-06 and 2026-09-05.

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 HI8JSA 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 (86%), followed by 40 m (14%). 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 strong S/N range (86%); the estimated median was -2 dB.

Overview

146

Messages attributed

UTC dates decoded

Active 15-min windows

-2 dB

Estimated median S/N

Bands

40m · 21 20m · 125

First attributed message: 2026-07-06
Last attributed message: 2026-09-05 23:45 UTC

Observed FT8 message patterns

Attributed sample: 146 messages
Active dates: 4 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -16 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 126.

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 HI8JSA in decoded directed-looking exchanges:

UA9CR · Asiatic Russia ×2 AD0AR · United States F5RAV · France HB9TIH · Switzerland HG8LXL · Hungary I2BPP · Italy IQ4JO · Italy IU0VOG · Italy KA2TQV · United States KE1LV · United States LZ2VQ · Bulgaria M6JAY · England

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 HI8JSA

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: FK58 · 52 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,500 km (approx.)
Last such locator decoded: 2026-09-05 23:45 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	HI8JSA S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-05 23:55	40m	- / -5	G1LQT	-2 / -	2	Partial capture
09-05 23:54	40m	- / -	CT7AUT	-9 / -	2	Partial capture
09-05 23:52	40m	- / +1	KZ4NS	-8 / -	2	Partial capture
09-05 23:52	40m	- / -	DL1UDO	-3 / -	4	Partial capture
09-05 23:52	40m	- / -16	PA0KGB	+3 / -	3	✓ Closing fragment
09-05 23:52	40m	- / -	PE1JLZ	-8 / -	2	Partial capture
09-05 23:51	40m	- / -	TA3NK	-3 / -	2	Partial capture
09-05 23:49	40m	- / -3	RD7O	+9 / -	5	✓ Closing fragment
09-05 23:48	40m	- / -	PE1JLZ	-7 / -	4	Partial capture
09-05 23:47	40m	- / -4	R5DK	+2 / -	3	Partial capture
09-05 23:43	40m	0 / -	OZ7FOC	- / -15	4	✓ Closing fragment
09-05 23:40	40m	-2 / -	SP7NC	- / -10	4	Partial capture
09-05 23:38	40m	- / -	ON4MAP	-17 / -	6	Partial capture
09-05 23:36	40m	- / -	RD7O	+9 / -	3	Partial capture
09-05 23:35	40m	-4 / -5	F1PBZ	-10 / -3	4	✓ Full exchange observed
09-05 23:35	40m	-1 / +1	OZ7SKB/P	+1 / -11	6	✓ Full exchange observed
09-05 23:34	40m	-3 / -	LA1QRO	- / -3	2	✓ Closing fragment
09-05 23:33	40m	- / -	RC3C	-10 / -	2	Partial capture
09-05 23:32	40m	- / -10	DL3MIB	-15 / -	3	✓ Closing fragment
09-05 23:32	40m	- / -	F1IQH	-8 / -	3	Partial capture
09-05 23:32	40m	- / -10	IU2HUQ	-2 / -	2	Partial capture
08-10 00:30	20m	- / -	SV2AOB	-18 / -	2	Partial capture
08-02 02:48	40m	- / +6	W6NWS	-14 / -	2	✓ Closing fragment
08-02 02:43	40m	- / -13	IU5TFD	-15 / -	6	✓ Closing fragment
08-02 02:39	40m	- / -	RX6LN	-8 / -	2	Partial capture
08-02 02:38	40m	- / -12	RG6OO	-4 / -	2	Partial capture
08-02 02:34	40m	- / -4	OH1MRE	+4 / -	4	✓ Closing fragment
08-02 02:23	40m	- / -14	UA6LIK	-14 / -	3	Partial capture
08-02 02:19	40m	- / -	R7LC	-7 / -	2	✓ Closing fragment
08-02 01:49	40m	- / -	OH1MRE	+6 / -	2	Partial capture
08-02 01:46	40m	- / -14	RW9AW	-17 / -	2	✓ Closing fragment
08-02 01:42	40m	- / -	RW9AW	-18 / -	4	Partial capture
08-02 01:35	40m	- / -	UB4CJS	-22 / -	2	✓ Closing fragment
08-02 01:30	40m	- / -12	DL6UJ	-5 / -	2	✓ Closing fragment
08-02 01:28	40m	- / -12	RW3GV	-12 / -	3	✓ Closing fragment
08-02 01:23	40m	- / -9	RZ1AS	-15 / -	3	Partial capture
08-02 01:22	40m	- / -22	UA3PAB	+1 / -	3	✓ Closing fragment
08-02 00:46	40m	- / -6	RO5A	-14 / -	2	✓ Closing fragment
08-02 00:36	40m	- / -	TA3NK	-12 / -	3	Partial capture
08-02 00:30	40m	- / -12	UT6UA	+2 / -	2	✓ Closing fragment
08-02 00:27	40m	- / -3	YL2NX	-9 / -	3	Partial capture
08-02 00:20	40m	- / 0	UY7AM	-10 / -	2	Partial capture
08-02 00:11	40m	- / -	IK2VFR/P	-10 / -	2	Partial capture
08-02 00:08	40m	- / -	IK8INR	-5 / -	3	Partial capture
08-02 00:01	40m	- / -	RY7F	-8 / -	2	Partial capture
08-01 23:58	40m	- / -19	DG5RN	-9 / -	4	Partial capture
08-01 23:53	40m	- / -15	S57UX	+6 / -	3	Partial capture
08-01 23:53	40m	- / -4	DD6WF	+5 / -	3	✓ Closing fragment
08-01 23:51	40m	- / -4	LY8O	-12 / -	3	✓ Closing fragment
08-01 23:49	40m	- / -	ER3ZW	-14 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
235215  -7 1523  HI8JSA PE1JLZ JO22
235215  +1  771  HI8JSA PA0KGB JO22
235215  -4 1282  HI8JSA DL1UDO JO31
235245  +5  771  HI8JSA PA0KGB R-16
235245  -7 2834  HI8JSA KZ4NS +01
235245  -3 1282  HI8JSA DL1UDO JO31
235315  -8 1522  HI8JSA PE1JLZ JO22
235315  +4  771  HI8JSA PA0KGB 73
235315  -9 2835  HI8JSA KZ4NS +01
235315  -3 1282  HI8JSA DL1UDO JO31 (x2)
235445  -8 1439  HI8JSA CT7AUT IM67
235515  -1 1533  HI8JSA G1LQT -05
235515 -10 1439  HI8JSA CT7AUT IM67
235545  -2 1532  HI8JSA G1LQT -05

20m

UTC    dB Audio  Message
010830  -4 2779  RV9CW HI8JSA +07 (x2)
010930  -2 2780  CQ HI8JSA FK58
011030  +0 2779  UA4FET HI8JSA 73
011100  -2 2779  CQ HI8JSA FK58 (x2)
011200  -1 2780  UA4FET HI8JSA +00
011215  -7 2779  HI8JSA UA4FET R+12
011530  +1 2780  CQ HI8JSA FK58
011600  +0 2780  <...> HI8JSA -08
000945 -21 1775  HI8JSA RX6LG -10
001245  -3 2902  HI8JSA UN7LZ MO13
001915 -15 2131  HI8JSA SV2AOB KN10 (x3)

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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