DecodeSignals's profile picture. Monitoring, decoding and analysing of digital radio signals on all frequencies, Ham radio operator

Guido

@DecodeSignals

Monitoring, decoding and analysing of digital radio signals on all frequencies, Ham radio operator

8195 kHz - Romanian Special Telecommunications Service exchanging zipped test mails between Bucharest and Bacau using MIL-110A / STANAG-5066

DecodeSignals's tweet image. 8195 kHz - Romanian Special Telecommunications Service exchanging zipped test mails between Bucharest and Bacau using MIL-110A / STANAG-5066
DecodeSignals's tweet image. 8195 kHz - Romanian Special Telecommunications Service exchanging zipped test mails between Bucharest and Bacau using MIL-110A / STANAG-5066

5874 kHz - NATO exercise, Dutch mil voice and text MIL-STD188-110A / FED-STD-1052 Recording: disk.yandex.com/d/3HB5H-H5CRT8…

DecodeSignals's tweet image. 5874 kHz - NATO exercise, Dutch mil voice and text MIL-STD188-110A / FED-STD-1052
Recording: disk.yandex.com/d/3HB5H-H5CRT8…
DecodeSignals's tweet image. 5874 kHz - NATO exercise, Dutch mil voice and text MIL-STD188-110A / FED-STD-1052
Recording: disk.yandex.com/d/3HB5H-H5CRT8…

11500 kHz - US DoD sending IPv4 packages secured by ESP protocol using MIL-110A and STANAG-4539 with STANAG-5066 Recording: disk.yandex.com/d/hUDEqOrVGP8u…

DecodeSignals's tweet image. 11500 kHz - US DoD sending IPv4 packages secured by ESP protocol using MIL-110A and STANAG-4539 with STANAG-5066
Recording: disk.yandex.com/d/hUDEqOrVGP8u…
DecodeSignals's tweet image. 11500 kHz - US DoD sending IPv4 packages secured by ESP protocol using MIL-110A and STANAG-4539 with STANAG-5066
Recording: disk.yandex.com/d/hUDEqOrVGP8u…
DecodeSignals's tweet image. 11500 kHz - US DoD sending IPv4 packages secured by ESP protocol using MIL-110A and STANAG-4539 with STANAG-5066
Recording: disk.yandex.com/d/hUDEqOrVGP8u…

5094 kHz - Polish Mil sending HF mails (HBFTP zip files / MIL-STD188-110A / STANAG-5066 / Harris equipment)

DecodeSignals's tweet image. 5094 kHz - Polish Mil sending HF mails 
(HBFTP zip files / MIL-STD188-110A / STANAG-5066 / Harris equipment)
DecodeSignals's tweet image. 5094 kHz - Polish Mil sending HF mails 
(HBFTP zip files / MIL-STD188-110A / STANAG-5066 / Harris equipment)
DecodeSignals's tweet image. 5094 kHz - Polish Mil sending HF mails 
(HBFTP zip files / MIL-STD188-110A / STANAG-5066 / Harris equipment)

15896.5 kHz - 1200Bd Packet Radio / AX.25 transmissions with TCP/IP packets during the last days. Callsigns were HQ2CEN and CE4TST. The file header in each transmission is showing a JPEG (JFIF) structure. Recording: disk.yandex.com/d/GvxdEsfYZ3qO…

DecodeSignals's tweet image. 15896.5 kHz - 1200Bd Packet Radio / AX.25 transmissions with TCP/IP packets during the last days. Callsigns were HQ2CEN and CE4TST. The file header in each transmission is showing a JPEG (JFIF) structure.
Recording: disk.yandex.com/d/GvxdEsfYZ3qO…
DecodeSignals's tweet image. 15896.5 kHz - 1200Bd Packet Radio / AX.25 transmissions with TCP/IP packets during the last days. Callsigns were HQ2CEN and CE4TST. The file header in each transmission is showing a JPEG (JFIF) structure.
Recording: disk.yandex.com/d/GvxdEsfYZ3qO…
DecodeSignals's tweet image. 15896.5 kHz - 1200Bd Packet Radio / AX.25 transmissions with TCP/IP packets during the last days. Callsigns were HQ2CEN and CE4TST. The file header in each transmission is showing a JPEG (JFIF) structure.
Recording: disk.yandex.com/d/GvxdEsfYZ3qO…

4744.5 kHz - Norwegian Navy stations LBJ and 3KD trying to send messages using STANAG-4481-PSK with KG84 encryption. But no success, even after confirming the use of "national crypto" several times. Recording (voice and data): disk.yandex.com/d/EuIP3eksP20O…

DecodeSignals's tweet image. 4744.5 kHz - Norwegian Navy stations LBJ and 3KD trying to send messages using STANAG-4481-PSK with KG84 encryption. But no success, even after confirming the use of "national crypto" several times.
Recording (voice and data): disk.yandex.com/d/EuIP3eksP20O…

4485 kHz and 10608 kHz - (to me) unid periodic signal. Synched every 1.8s followed by eight slots of 200ms. Fragments of voice, mic feedback and MFSK-8 (ALE-2G ?) could be seen in the slots. Any idea ? Recording: disk.yandex.com/d/wpqHhBdhnDeY…

DecodeSignals's tweet image. 4485 kHz and 10608 kHz - (to me) unid periodic signal. Synched every 1.8s followed by eight slots of 200ms. Fragments of voice, mic feedback and MFSK-8 (ALE-2G ?) could be seen in the slots. Any idea ?
Recording: disk.yandex.com/d/wpqHhBdhnDeY…

6668 kHz - Chinese mil / People's Liberation Army (PLA) with several 3-digit callsigns sending MIL-110A with HARRIS Citadel encryption. Recording: disk.yandex.com/d/6M4Fan0mtlvM…

DecodeSignals's tweet image. 6668 kHz - Chinese mil / People's Liberation Army (PLA) with several 3-digit callsigns sending MIL-110A with HARRIS Citadel encryption.
Recording: disk.yandex.com/d/6M4Fan0mtlvM…

4593 kHz - 1200Bd FSK / 850Hz shift, 1536-bit TDM protocol. TDoA points to UK, should be DHFCS. Recording: disk.yandex.com/d/fURdi3urB6po…

DecodeSignals's tweet image. 4593 kHz - 1200Bd FSK / 850Hz shift, 1536-bit TDM protocol. TDoA points to UK, should be DHFCS.
Recording: disk.yandex.com/d/fURdi3urB6po…
DecodeSignals's tweet image. 4593 kHz - 1200Bd FSK / 850Hz shift, 1536-bit TDM protocol. TDoA points to UK, should be DHFCS.
Recording: disk.yandex.com/d/fURdi3urB6po…

6828 kHz, 5437 kHz and other freqs (tonight) - ALE-2G calls 10CDGD, DGG01D and DGD01D followed by MIL-110A transmissions with KG-84 encryption. Any idea who it is ? Recording: disk.yandex.com/d/iA3Lh6e8BtaR…

DecodeSignals's tweet image. 6828 kHz, 5437 kHz and other freqs (tonight) - ALE-2G calls 10CDGD, DGG01D and DGD01D followed by MIL-110A transmissions with KG-84 encryption. Any idea who it is ? 
Recording: disk.yandex.com/d/iA3Lh6e8BtaR…

4132 kHz and 4135 kHz - Swiss army with link protected ALE-2G and MIL-110A sending UUencoded and IDEA encrypted HF mails using FED-STD-1052 protocol. The IDEAkey is brand-new of 05.02.2021 Recording: yadi.sk/d/qx58I4rf8TMX…

DecodeSignals's tweet image. 4132 kHz and 4135 kHz - Swiss army with link protected ALE-2G and MIL-110A sending UUencoded and IDEA encrypted HF mails using FED-STD-1052 protocol.
The IDEAkey is brand-new of 05.02.2021
Recording: yadi.sk/d/qx58I4rf8TMX…
DecodeSignals's tweet image. 4132 kHz and 4135 kHz - Swiss army with link protected ALE-2G and MIL-110A sending UUencoded and IDEA encrypted HF mails using FED-STD-1052 protocol.
The IDEAkey is brand-new of 05.02.2021
Recording: yadi.sk/d/qx58I4rf8TMX…
DecodeSignals's tweet image. 4132 kHz and 4135 kHz - Swiss army with link protected ALE-2G and MIL-110A sending UUencoded and IDEA encrypted HF mails using FED-STD-1052 protocol.
The IDEAkey is brand-new of 05.02.2021
Recording: yadi.sk/d/qx58I4rf8TMX…

7660 kHz - MIL-110A and STANAG-4539 with STANAG-5066 sending IPSec data packets. S5066 addresses belong to US DoD. IPv4 header and ESP protocol detected by the great tool #CyberChef - gchq.github.io/CyberChef and by Wireshark. Recording: yadi.sk/d/8BJ5ip4PPHRs…

DecodeSignals's tweet image. 7660 kHz - MIL-110A and STANAG-4539 with STANAG-5066 sending IPSec data packets. S5066 addresses belong to US DoD.
IPv4 header and ESP protocol detected by the great tool #CyberChef - gchq.github.io/CyberChef
and by Wireshark.
Recording: yadi.sk/d/8BJ5ip4PPHRs…
DecodeSignals's tweet image. 7660 kHz - MIL-110A and STANAG-4539 with STANAG-5066 sending IPSec data packets. S5066 addresses belong to US DoD.
IPv4 header and ESP protocol detected by the great tool #CyberChef - gchq.github.io/CyberChef
and by Wireshark.
Recording: yadi.sk/d/8BJ5ip4PPHRs…
DecodeSignals's tweet image. 7660 kHz - MIL-110A and STANAG-4539 with STANAG-5066 sending IPSec data packets. S5066 addresses belong to US DoD.
IPv4 header and ESP protocol detected by the great tool #CyberChef - gchq.github.io/CyberChef
and by Wireshark.
Recording: yadi.sk/d/8BJ5ip4PPHRs…
DecodeSignals's tweet image. 7660 kHz - MIL-110A and STANAG-4539 with STANAG-5066 sending IPSec data packets. S5066 addresses belong to US DoD.
IPv4 header and ESP protocol detected by the great tool #CyberChef - gchq.github.io/CyberChef
and by Wireshark.
Recording: yadi.sk/d/8BJ5ip4PPHRs…

6990 kHz - FSK ~76.7bd/300Hz, 5-bit text of PLATH with an innovative recruiting method. career.plathgroup.com Recording: yadi.sk/d/2PzAcMV-NPzA… #PROCITEC @shoc_rolf

DecodeSignals's tweet image. 6990 kHz - FSK ~76.7bd/300Hz, 5-bit text of PLATH with an innovative recruiting method.
career.plathgroup.com
Recording: yadi.sk/d/2PzAcMV-NPzA…
#PROCITEC @shoc_rolf
DecodeSignals's tweet image. 6990 kHz - FSK ~76.7bd/300Hz, 5-bit text of PLATH with an innovative recruiting method.
career.plathgroup.com
Recording: yadi.sk/d/2PzAcMV-NPzA…
#PROCITEC @shoc_rolf

12180 kHz - unid MIL-110A transmissions, 1200bps with 8N1 framing. Very regular bit pattern. Don't know yet if it's encrypted or not. Recording: yadi.sk/d/i5rBBMveZGts…

DecodeSignals's tweet image. 12180 kHz - unid MIL-110A transmissions, 1200bps with 8N1 framing. Very regular bit pattern. Don't know yet if it's encrypted or not.
Recording: yadi.sk/d/i5rBBMveZGts…

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