Jump to content

Astra: Difference between revisions

From SimTX Wiki
← Older editNewer edit →
VisualWikitext
RUCC (talk | contribs)
18 edits
No edit summary
RUCC (talk | contribs)
18 edits
No edit summary
Line 12: Line 12:
|-
|-
! Frequencies
! Frequencies
| 3990, 4600, 4880, 4885, 6070, 6270, 6275, 6980 kHz
| 3990, 4600, 4935, 6070, 6270, 6275, 6980 kHz
|-
|-
! Modulation
! Modulation
Line 40: Line 40:
| 75 m
| 75 m
| Occasional
| Occasional
| Not always active.
| Not always active...
|-
|-
| '''4600 kHz'''
| '''4600 kHz'''
| 60 m
| 60 m
| Regular
| Regular
|
| Secondary main frequency but more often active.
|-
|-
| '''4880 kHz'''
| '''4880 kHz'''
| 60 m
| 60 m
| Primary
| Inactive
| May occasionally be moved to avoid interference from [[Lodz Jedynka]].
| Inactive because of interferences with [[Lodz Jedynka]].
|-
|-
| '''4885 kHz'''
| '''4885 kHz'''
| 60 m
| 60 m
| Primary
| Inactive
| May occasionally be moved depending on band activity (like 4880 kHz).
| Inactive because of interferences with [[Lodz Jedynka]].
|-
| '''4935 kHz'''
| 60 m
| Main Frequency
| Current main frequency.
|-
|-
| '''6070 kHz'''
| '''6070 kHz'''
| 49 m
| 49 m
| Primary
| Primary
|
| Secondary main frequency.
|-
|-
| '''6270 kHz'''
| '''6270 kHz'''
| 49 m
| 49 m
| Primary
| Primary
|
| Secondary main frequency.
|-
|-
| '''6275 kHz'''
| '''6275 kHz'''
| 49 m
| 49 m
| Occasional
| Occasional
|
| Not always active...
|-
|-
| '''6980 kHz'''
| '''6980 kHz'''
| 43 m
| 43 m
| Occasional
| Occasional
|
| Not always active...
|}
|}


Line 108: Line 113:


{| class="wikitable"
{| class="wikitable"
! Frequency range
! Broadcast Band
! Power
! Power
|-
|-
| 3990 kHz
| 75m
| Approximately '''50 kW'''
| '''50 kW'''
|-
|-
| 4600–4885 kHz
| 60m
| Approximately '''10 kW''' (occasionally higher)
| Approximately '''10 kW''' (occasionally higher)
|-
|-
| 6070–6980 kHz
| 49m and 43m
| Approximately '''250 kW'''
| '''250 kW'''
|}
|}


Revision as of 20:59, 10 July 2026

Radio Astra

Country Germany
Airdate July 2026
Broadcast area Europe
Frequencies 3990, 4600, 4935, 6070, 6270, 6275, 6980 kHz
Modulation AM (6 kHz)
Power 10–250 kW
Antennas 18 m vertical, 29 m dipole, 23 m dipole
Status Active

Radio Astra is an experimental AM shortwave radio station believed to operate from Germany. Since beginning operations in July 2026, the station has transmitted music, test programs, and various experimental broadcasts on several frequencies across the 75, 60, 49, and 43 metre shortwave bands.

Frequencies

Frequency Band Status Notes
3990 kHz 75 m Occasional Not always active...
4600 kHz 60 m Regular Secondary main frequency but more often active.
4880 kHz 60 m Inactive Inactive because of interferences with Lodz Jedynka.
4885 kHz 60 m Inactive Inactive because of interferences with Lodz Jedynka.
4935 kHz 60 m Main Frequency Current main frequency.
6070 kHz 49 m Primary Secondary main frequency.
6270 kHz 49 m Primary Secondary main frequency.
6275 kHz 49 m Occasional Not always active...
6980 kHz 43 m Occasional Not always active...

The station's primary operating frequencies are 4880 kHz, 4885 kHz, 6070 kHz, and 6270 kHz. Other frequencies are used occasionally depending on propagation conditions and operating requirements.

Technical information

Location Germany
Modulation AM
Audio bandwidth 6 kHz
Transmitter DIY generic AM transmitter
Antenna system 18 m vertical antenna (75 m band)

29 m dipole (60 m band)
23 m dipole (49 m band)
23 m dipole occasionally shortened to approximately 20 m for operation on the 43 m band

Transmitter power

Approximate transmitter power varies depending on the operating frequency.

Broadcast Band Power
75m 50 kW
60m Approximately 10 kW (occasionally higher)
49m and 43m 250 kW

Programming

Radio Astra primarily broadcasts:

  • Music
  • Experimental transmissions
  • Technical tests
  • Special broadcasts

Programming schedules are irregular and may vary depending on propagation conditions and station activity.

See also

'

Retrieved from "https://wiki.simtx.net/index.php?title=Astra&oldid=120"