SP8MTA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO91

Receiver-side FT8 activity involving SP8MTA, decoded by SO8OO in southeastern Poland. 75 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-09-09 and 2026-09-20.

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 75 FT8 messages attributed to SP8MTA as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (39%), followed by 80 m (31%) and 160 m (17%). Several six-hour UTC windows tied for the largest share (87%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (64%); the estimated median was -6 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

160m · 13 80m · 23 60m · 29 40m · 10

First attributed message: 2026-09-09
Last attributed message: 2026-09-20 08:56 UTC

Observed FT8 message patterns

Attributed sample: 75 messages
Active dates: 4 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -11 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 48.

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 SP8MTA in decoded directed-looking exchanges:

DL1SRS · Fed. Rep. of Germany ×2 PA2RO · Netherlands DC7MA · Fed. Rep. of Germany DK2CC · Fed. Rep. of Germany DL5CG · Fed. Rep. of Germany IK2RZQ · Italy IU3WNZ · Italy ON6DL · Belgium OS4K · Belgium OZ1LGJ · Denmark DO9SAM · Fed. Rep. of Germany HF5A · Poland

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 SP8MTA

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: JO91 · 36 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 262 km (approx.)
Last such locator decoded: 2026-09-20 08:56 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	SP8MTA S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 08:56	40m	-1 / -	RT4A/P	- / -3	2	Partial capture
09-20 07:26	40m	-8 / -	SQ100PKP	- / -2	2	Partial capture
09-19 19:42	80m	+9 / -	SO100PKP	- / +9	3	Partial capture
09-19 18:30	80m	0 / -9	SN100PKP	+4 / +1	3	Partial capture
09-19 18:10	80m	+2 / -	UB3ADO/P	- / -2	4	Partial capture
09-19 11:32	40m	-12 / 0	SQ100PKP	-15 / -	2	Partial capture
09-19 11:28	40m	-9 / +2	HF100PKP	-9 / +2	2	Partial capture
09-19 09:39	40m	-4 / -9	PA2RO	-15 / -12	5	✓ Full exchange observed
09-11 20:55	80m	- / -8	HF5A	+15 / -	3	✓ Closing fragment
09-11 20:52	80m	- / -8	UA4FKT	+3 / -	3	✓ Closing fragment
09-11 20:50	80m	+3 / -	SP5DFK	- / -2	2	Partial capture
09-11 20:49	80m	-7 / -9	DO9SAM	+6 / -1	4	✓ Full exchange observed
09-11 20:45	80m	0 / -	OM5AWE	+11 / +3	5	Partial capture
09-11 20:45	80m	+3 / -13	R5AV	+5 / 0	4	✓ Full exchange observed
09-11 20:38	160m	-8 / -	DO3VE	-4 / -15	10	Partial capture
09-09 20:29	60m	-6 / -4	OZ1LGJ	-9 / +4	4	✓ Full exchange observed
09-09 20:25	60m	-9 / -4	IK2RZQ	-5 / +4	7	✓ Full exchange observed
09-09 20:24	60m	-10 / -2	DK2CC	-17 / +9	5	✓ Full exchange observed
09-09 20:24	60m	-10 / -	ON6DL	- / +2	2	✓ Closing fragment
09-09 20:22	60m	-8 / -2	DL5CG	+3 / -	5	✓ Full exchange observed
09-09 20:19	60m	-13 / -6	DL1SRS	-3 / -1	5	✓ Full exchange observed
09-09 20:17	60m	-10 / -13	DC7MA	-17 / -9	3	✓ Full exchange observed
09-09 20:14	60m	- / -9	SP5JMA	+4 / -	2	Partial capture
09-09 20:12	60m	-3 / -2	IU3WNZ	-12 / -	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
094045  -2  889  PA2RO SP8MTA RR73
094100 -15 1201  SP8MTA PA2RO 73
112800  -9 1428  SP8MTA HF100PKP +02
112815  -9 1428  HF100PKP SP8MTA R+02
113245 -12 1912  SQ100PKP SP8MTA JO91
113300 -15 1912  SP8MTA SQ100PKP +00
113330 -18 1912  SP8MTA RR73; SP1BMK <...> +08
072615 -11 2040  SQ100PKP SP8MTA JO91
072630 -15 2091  SP8MTA SN100PKP -17
072645  -4 2040  SQ100PKP SP8MTA R-02
072945  -4 1414  RV6G/P SP8MTA JO91
073015  -5 1414  <3Z100PKP> SP8MTA R+04
085615  -1 2051  RT4A/P SP8MTA JO91
085630 -10 2104  SP8MTA SO100PKP +05
085645  -1 2052  RT4A/P SP8MTA R-03

80m

UTC    dB Audio  Message
205645 +15  619  SP8MTA HF5A 73
181045  -6 2169  UB3ADO/P SP8MTA JO91 (x3)
181200  -2 1898  SP8MTA 3Z100PKP +00
181215 +10 2169  UB3ADO/P SP8MTA R-02
181300  -8 2169  SP8MTA LZ2VQ KN23
182845  +1 1042  UB3ADO/P SP8MTA JO91
183015  -4 1436  SN100PKP SP8MTA JO91
183030  +4 1437  SP8MTA SN100PKP -09
183045  +3 1437  SN100PKP SP8MTA R+01
183100  +2 1437  SP8MTA RR73; DL6BCZ <...> -14
194245  +5 1897  SO100PKP SP8MTA JO91 (x3)

160m

UTC    dB Audio  Message
203815  -2  664  SP8MTA DO3VE JO52 (x2)
203900 -11  600  DO3VE SP8MTA -15
203915  +0  664  SP8MTA DO3VE JO52
203930  -5  600  DO3VE SP8MTA -06
203945  -6  664  SP8MTA DO3VE JO52
204000  -8  600  DO3VE SP8MTA -10
204015  -8  664  SP8MTA DO3VE JO52
204030  -7  600  DO3VE SP8MTA -11 (x2)
204130 -13  600  CQ SP8MTA JO91                        a1 (x4)
195130 +13  830  SP8MTA RR73; YL3KZ <...> -04

60m

UTC    dB Audio  Message
202545  -9  959  DK2CC SP8MTA RR73
202600  -5 1131  SP8MTA IK2RZQ JN45
202600 -17 2097  SP8MTA DK2CC 73
202615  -9  959  IK2RZQ SP8MTA +04
202630  -4 1131  SP8MTA IK2RZQ R-04
202645  -9  959  IK2RZQ SP8MTA RR73
202700  -6 1130  SP8MTA IK2RZQ 73
202745 -11  959  CQ SP8MTA JO91                        a1 (x3)
202900  -9  958  SP8MTA OZ1LGJ JO46
202915  -6  959  OZ1LGJ SP8MTA +04
202930  -9  959  SP8MTA OZ1LGJ R-04
202945  -5  959  OZ1LGJ SP8MTA RR73
203215  -6  959  OS4K SP8MTA 73

10m

UTC    dB Audio  Message
134930 -20 1848  SP8MTA 7Q5BM -02

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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