HZ1TT — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Saudi Arabia Most frequent locator attributed to this token: KL94

Receiver-side FT8 activity involving HZ1TT, decoded by SO8OO in southeastern Poland. 13,079 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 37 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-21.

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 13,079 FT8 messages attributed to HZ1TT as the transmitting token by decoded message structure across 37 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (63%), followed by 20 m (33%) and 10 m (3%). Most decodes (62%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

13,079

Messages attributed

UTC dates decoded

731

Active 15-min windows

-10 dB

Estimated median S/N

Bands

40m · 8,256 20m · 4,373 10m · 450

First attributed message: 2026-06-06
Last attributed message: 2026-09-21 12:55 UTC

Observed FT8 message patterns

Attributed sample: 13,079 messages
Active dates: 37 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -20 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3,530, moderate (-15 to -9 dB) 4,368, strong (≥ -8 dB) 5,181.

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 HZ1TT in decoded directed-looking exchanges:

M0PEL · England ×5 KZ4MW · United States ×4 II7IAME · Italy ×4 UA9SY · Asiatic Russia ×4 UB3BDJ/6 · European Russia ×4 W1RQ · United States ×4 DN9OY · Fed. Rep. of Germany ×3 TA2ED · Asiatic Turkey ×3 K7ACZ · United States ×3 KJ5OIL · United States ×3 OK4KOP/P · Czech Republic ×3 RN3YN · European Russia ×3

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 HZ1TT

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: KL94 · 8,693 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 3,195 km (approx.)
Last such locator decoded: 2026-09-21 12:55 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	HZ1TT S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-21 12:52	10m	-16 / -	PD1EN	- / -15	4	✓ Closing fragment
09-21 12:49	10m	-15 / -	YO8RQP	- / +6	3	✓ Closing fragment
09-21 12:47	10m	-16 / -	SQ8SV	- / -14	3	✓ Closing fragment
09-21 12:42	10m	-19 / -	SP2SGL	- / -17	2	✓ Closing fragment
09-21 12:36	10m	-14 / -	R2FEA	- / -11	3	✓ Closing fragment
09-21 12:34	10m	-15 / -	OM3WFH	- / -2	3	✓ Closing fragment
09-21 12:31	10m	-15 / -	DL2HWH	- / +1	3	✓ Closing fragment
09-21 12:29	10m	-14 / -	EA8AR	- / -9	3	✓ Closing fragment
09-21 12:27	10m	-12 / -	OH3NAQ	- / -22	3	✓ Closing fragment
09-21 12:25	10m	-20 / -	DN9ZZ	- / -21	3	✓ Closing fragment
09-21 12:21	10m	-20 / -	DF9CY	- / -18	3	✓ Closing fragment
09-21 12:19	10m	-18 / -	DG4VZ	- / -	2	✓ Closing fragment
09-21 12:16	10m	-14 / -	LY3VD	- / -18	3	✓ Closing fragment
09-21 12:14	10m	-16 / -	DL1NOD	- / -15	3	✓ Closing fragment
09-21 12:10	10m	-19 / -	DN9OY	- / 0	3	✓ Closing fragment
09-21 12:09	10m	-20 / -	YO3YX	- / 0	2	✓ Closing fragment
09-21 12:06	10m	-20 / -	DF8HP	- / -8	4	✓ Closing fragment
09-21 12:04	10m	-18 / -	LZ1CLK	- / -10	3	✓ Closing fragment
09-21 12:02	10m	-18 / -	AP2HA	- / -20	3	Partial capture
09-21 11:59	10m	-19 / -	VK0DS	- / -24	3	✓ Closing fragment
09-21 11:55	10m	-20 / -	<...>	- / -	2	✓ Closing fragment
09-21 11:51	10m	-18 / -	DH5NC	- / -22	2	✓ Closing fragment
09-21 11:48	10m	-20 / -	DN9MSG	- / -10	3	✓ Closing fragment
09-21 11:46	10m	-21 / -	SP9MIL	- / -	2	✓ Closing fragment
09-21 11:40	10m	-20 / -	OM1TT	- / -18	3	✓ Closing fragment
09-21 11:37	10m	-15 / -	JO4GGN	- / -17	4	✓ Closing fragment
09-21 11:31	10m	-19 / -	EA3CSK	- / -20	4	✓ Closing fragment
09-21 11:29	10m	-19 / -	OZ2AEM	- / -9	2	✓ Closing fragment
09-21 11:22	10m	-15 / -	ZA5G	- / -2	3	✓ Closing fragment
09-21 10:43	10m	-16 / -	DN9CHV	- / -17	2	✓ Closing fragment
09-21 10:41	10m	-17 / -	DG8NFB	- / -9	3	✓ Closing fragment
09-21 10:39	10m	-12 / -	DN9HL	- / +7	3	✓ Closing fragment
09-21 10:37	10m	-12 / -	DL9KM	- / -17	3	✓ Closing fragment
09-21 10:35	10m	-12 / -	DG5TF	- / -12	3	✓ Closing fragment
09-21 10:34	10m	-14 / -	SP9SCI	- / -7	2	✓ Closing fragment
09-21 10:32	10m	-10 / -	SP5EBH	- / -19	3	✓ Closing fragment
09-21 10:28	10m	-17 / -	DN9CHV	- / -24	3	Partial capture
09-21 10:26	10m	-19 / -	OE4MTI	- / +5	3	✓ Closing fragment
09-21 10:25	10m	-21 / -	CR7CAU	- / -23	2	✓ Closing fragment
09-21 10:23	10m	-12 / -	R3FE	- / -8	3	✓ Closing fragment
09-21 10:21	10m	-13 / -	F5DQK	- / -19	3	✓ Closing fragment
09-21 10:19	10m	-16 / -	DN9OY	- / -15	3	✓ Closing fragment
09-21 03:28	40m	-11 / -	WT4N	- / -15	3	Partial capture
09-21 03:19	40m	-11 / -	RN3YN	- / -20	3	✓ Closing fragment
09-21 03:16	40m	-10 / -	EU7A	- / 0	3	✓ Closing fragment
09-21 03:14	40m	-6 / -	W0SAB	- / -8	3	✓ Closing fragment
09-21 03:11	40m	-8 / -	K5LJC	- / -23	4	✓ Closing fragment
09-21 02:36	40m	-1 / -	SP6AMI	- / -9	2	✓ Closing fragment
09-21 02:33	40m	-4 / -	OH7OBJ	- / -19	2	✓ Closing fragment
09-21 02:29	40m	-5 / -	AK6A	-13 / -23	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
124845 -15 1750  SQ8SV HZ1TT 73
124915 -13 1750  CQ HZ1TT KL94
124945 -13 1750  YO8RQP HZ1TT +06 (x3)
125115 -15 1750  CQ HZ1TT KL94 (x3)
125245 -19 1751  PD1EN HZ1TT -15 (x4)
125445 -12 1752  CQ HZ1TT KL94 (x3)

40m

UTC    dB Audio  Message
034515 -15 1730  CQ HZ1TT KL94 (x15)

60m

UTC    dB Audio  Message
212045  +0 2193  HZ1TT IK6DLK JN63
210930  -6 1082  HZ1TT LB9ZG JP20

80m

UTC    dB Audio  Message
205045  +6 1692  HZ1TT OE5ABL -07
031145 +15 2187  HZ1TT S52V JN76 (x2)
214715 -24 1692  HZ1TT F4VTR JN25 (x3)
010145 -15  735  HZ1TT AG2K FN31 (x9)

160m

UTC    dB Audio  Message
013445 +18  834  HZ1TT SP7QJF KO10 (x2)
200015  -7 1331  HZ1TT R7OQ KN98 (x7)

20m

UTC    dB Audio  Message
064845  -8 2935  HZ1TT IW5ALZ JN53
064945  -1 2590  HZ1TT RC2N -09 (x2)
065015  -7 2935  HZ1TT IW5ALZ JN53
065045 -13 1760  HZ1TT PA1JMR JO32
065115  +4 1757  HZ1TT 9A5RIS JN74 (x4)
065415  -6 1758  HZ1TT IS0KZK JM49 (x3)
070045 -20 1760  HZ1TT PA1JMR JO32 (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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