Unknown 38MHz and 35MHz low VHF band radar 94kHz to 100kHz wide

Unknown 38MHz low VHF band radar 100kHz wide
Frequencies	38 MHz
Frequency Range	38 MHz - 38 MHz
Mode	AM
Modulation	Pulsed (FMOP)
ACF	—
Bandwidth	100 kHz
Location	Europe / Worldwide
Short Description	Unknown pulsed radar on the low VHF band
I/Q Raw Recording	Download file
Audio Sample

This radar was spotted on Nov 11, 2023, in Northern Europe, during good low VHFVery High Frequency (30-300 MHz) band propagation conditions. It transmits a pulsed signal with FMFrequency Modulation-on-pulse, having a pulse frequency of 95 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). and bandwidth of 100 kHzKiloHertz (kHz) 10^3 Hz. The signal is fairly well confined to this bandwidth and does not splatter much.

A very similar signal, although much weaker, was seen on Sep 2, 2023, see below. It had pulse frequency of 83 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). and about 94 kHzKiloHertz (kHz) 10^3 Hz bandwidth. It may or may not be the same radar.

Samples[edit]

Showcase sample is .

FMFrequency Modulation sample

USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) sample, recorded with 20 bandwidth


Similar radar on 35MHz, with 83 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). rate / 94 kHzKiloHertz (kHz) 10^3 Hz BW
AMAmplitude Modulation sample: FMFrequency Modulation sample: USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) sample, 5 kHzKiloHertz (kHz) 10^3 Hz BW: USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) sample, 20 kHzKiloHertz (kHz) 10^3 Hz BW: