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[[File:NS7image.png|thumb|'''NS7 Marker on 5000kHz. Date: 04/08/2026''']]
[[File:NS7image.png|thumb|'''NS7 Marker on 5000kHz. Date: 04/08/2026''']]
{{Short description|American military shortwave radio station}}
{{User-generated|date=August 2026}}
{{Use dmy dates|date=August 2026}}
{{Infobox radio station
| format = Marker / voice messages
| image =
| caption =
| airdate =
| former_callsigns = CA89, RAO
| former_frequencies = 8000 kHz, 8010 kHz, 8300 kHz
| owner = [[Defense Intelligence Agency]] (unconfirmed)<br />[[Central Intelligence Agency]] (partially confirmed)
| name = NS7
| country = {{ubl|[[United States]]}}
| frequency = 5000 kHz (night)<br />4600 kHz (day)<br />3950 kHz (least active)
| language = [[English language|English]]
| coordinates = ~15 mi southwest of [[Győr]], [[Hungary]] (believed)
| sister_stations =
| city =
}}


'''NS7''' (also known as '''NST0''') is an American military shortwave radio station that broadcasts in [[Single-sideband modulation|upper sideband]] (USB) mode. Although the station is English-language and American in origin, its transmitter is believed to be located approximately 15 miles southwest of [[Győr]], [[Hungary]].
'''NS7''' (also known as '''NST0''') is an American military shortwave radio station that broadcasts in upper sideband (USB) mode. Its transmitter is believed to be located approximately 15 miles southwest of Győr, Hungary.


== Frequencies ==
== Frequencies ==
The station’s primary marker operates in USB modulation:
* 5000 kHz at night (8 PM - 5 AM EST)
* 5000 kHz at night (8 PM through 5 AM EST)
* 4600 kHz during the day (6 AM - 7 PM EST)
* 4600 kHz during the day (6 AM through 7 PM EST)
* 3950 kHz (least active)
* 3950 kHz (least active frequency)


Former frequencies include 8000 kHz, 8010 kHz, and 8300 kHz.
Former frequencies: 8000 kHz, 8010 kHz, and 8300 kHz.


Although NS7 is not active 24 hours a day, it is most active at night on 3950 kHz.
The station is not active 24 hours a day and is most active at night on 3950 kHz.


== Messages ==
== Messages ==
NS7 transmits voice messages in a monolith-like format. A typical sequence begins with the operator callsign followed by “stand by,” then the message content:
NS7 uses a monolith-like format. A typical transmission begins:


{{Quote frame|NS7 (operator callsign), stand by.<br />(Message Sequence).}}
NS7 (operator callsign), stand by.
(Message Sequence).


== Callsigns ==
== Callsigns ==
Main callsigns of NS7 (NST0) have varied over time. Documented examples include:
{| class="wikitable"
{| class="wikitable"
|+Main callsigns of NS7 (NST0)
! Callsign !! Date noted
!Callsign
!Date noted
|-
|-
|CA89
| CA89 || 15 May 2026
|15 May 2026
|-
|-
|NS7
| NS7 || 8 August 2026
|8 August 2026
|-
|-
|RAO
| RAO || 8 August 2026
|8 August 2026
|-
| TZT || 19 August 2026
|}
|}


== Owner ==
== Owner ==
The station is believed to be operated by the [[Defense Intelligence Agency]] (DIA) (unconfirmed) and/or the [[Central Intelligence Agency]] (CIA) (partially confirmed; full confirmation is not possible due to missing evidence).
Believed to be operated by the Defense Intelligence Agency (unconfirmed) and/or the Central Intelligence Agency (partially confirmed).
 
[[Category:Radio Stations]]
== See also ==
[[category:Military]]
* [[Numbers station]]
* [[Letter beacon]]
 
== References ==
{{Reflist}}
 
== External links ==
* [https://wiki.simtx.net/index.php/NS7 NS7 on SimTX Wiki]
 
[[Category:Military radio stations]]
[[Category:Numbers stations]]
[[Category:Radio stations in the United States]]

Latest revision as of 03:49, 26 August 2026

NS7 Marker on 5000kHz. Date: 04/08/2026

NS7 (also known as NST0) is an American military shortwave radio station that broadcasts in upper sideband (USB) mode. Its transmitter is believed to be located approximately 15 miles southwest of Győr, Hungary.

Frequencies[edit | edit source]

  • 5000 kHz at night (8 PM - 5 AM EST)
  • 4600 kHz during the day (6 AM - 7 PM EST)
  • 3950 kHz (least active)

Former frequencies: 8000 kHz, 8010 kHz, and 8300 kHz.

The station is not active 24 hours a day and is most active at night on 3950 kHz.

Messages[edit | edit source]

NS7 uses a monolith-like format. A typical transmission begins:

NS7 (operator callsign), stand by. (Message Sequence).

Callsigns[edit | edit source]

Callsign Date noted
CA89 15 May 2026
NS7 8 August 2026
RAO 8 August 2026
TZT 19 August 2026

Owner[edit | edit source]

Believed to be operated by the Defense Intelligence Agency (unconfirmed) and/or the Central Intelligence Agency (partially confirmed).

Retrieved from "https://wiki.simtx.net/index.php?title=NS7&oldid=841"