PLUTO II OTH Radar
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|---|---|
| Frequencies | 8 MHz,38 MHz |
| Frequency Range | 8 MHz - 38 MHz |
| Mode | USB |
| Modulation | FMCW |
| ACF | — |
| Emission Designator | — |
| Bandwidth | 20 kHz,40 kHz |
| Location | Cyprus |
| Short Description | PLUTO II is an Over The Horizon Radar located in the Sovereign Base Area just outside RAF Akrotiri in Cyprus. PLUTO II is very active in Europe. |
| I/Q Raw Recording | — |
| Audio Sample | |
PLUTO II is an Over The Horizon Radar located in the UK Sovereign Base Area just outside the RAF Akrotiri base in Cyprus. Uses FMCW (Frequency Modulated Continuous Wave). PLUTO has been seen with sweeprates of 25 and 50 sweeps/sec even sometimes 12.5 sweeps/sec.
50 sweeps/sec with 20 kHzKiloHertz (kHz) 10^3 Hz bandwidth is the most commonly used mode. 25 sweeps/sec with 20 kHzKiloHertz (kHz) 10^3 Hz bandwidth is quite often used when propagation conditions are good, especially on higher frequencies. 12.5 sweeps/sec mode is rare and it is usually used with 40 kHzKiloHertz (kHz) 10^3 Hz bandwidth. Other sweep rates, bandwidths and their combinations may exist.
Like some other OTHOver The Horizon (very long range) radars, PLUTO II can operate multiple beams simultaneously on multiple frequencies.
PLUTO II can be confused with the 29B6 'Kontayner" radar but can be differentiated by its wider bandwidth, different sweep rate and "smoother" sound. Signal analysis will reveal FMCW operation.
Samples[edit]
RAW:
USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables):
| 50 Sweeps/Sec | 25 Sweeps/Sec | 12.5 Sweeps/Sec |
|---|---|---|
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USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) samples recorded with high bandwidth[edit]
50 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). sweep rate
25 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). sweep rate
USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) samples recorded with more typical ham radio bandwidth (5 kHzKiloHertz (kHz) 10^3 Hz)[edit]
50 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). sweep rate
25 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). sweep rate
AMAmplitude Modulation samples, notice the smooth sound[edit]
50 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). sweep rate
25 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). sweep rate
FMFrequency Modulation samples[edit]
50 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). sweep rate
25 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). sweep rate
Example Videos[edit]
- Radar, PLUTO, 25 Hz mode, 12300 kHz, November 17, 2012, 1520 UTC
- Shortwave Radio - PLUTO Radar 18310Khz 01/18/2012
- Radar, British PLUTO and 29B6, some ways to tell them apart, February 07, 2015, 1500 UTC
- PLUTO Radar 0248 UTC
- Over-the-horizon radar in 27MHz (PLUTO II due to 20 kHz spread and location in Romania
- Analysis of PLUTO II by FirstToken
Additional Links[edit]
Additional Images[edit]
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