I've seen this for a year or so. I might have posted about it before but can't remember. It's about 50k wide and runs for minutes at a time with brief pauses.
What is this wideband signal at 35.150?
- Thread starter mancow
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radar_hunter
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Assuming it sounds like "beep" "boop" in AM mode, it's a radar, known as "Ghadir" or "Sepehr" in the radio community, but not sure if either of these names is correct. Originates from Iran, not sure if similar systems exist elsewhere (e.g. Russia). Commonly operates in the 10m/28MHz ham band but I've seen it on lower VHF as well as on CB where it thoroughly messes up many channels at once. The transmission is pulsed and bandwidth is not well defined, it may occupy quite a large slice of bandwidth when it's strong. Usually alternates between two pulse frequencies (low/medium or medium/high), causing the "beep boop" sound but I've heard similar system using a constant frequency too.
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Check and make certain it is not a harmonic of 17.575 kHz.
Token
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As with many radar signals, determining the real source (by name) can be difficult. The Ghadir and Sepehr are probably (in my opinion) different radars, but the media often reports either using the same pictures. Most often the images used appear to be very similar to / identical to the Russian Resonance-NE, and both Iran and Russia have acknowledged that Iran bought the Resonance-NE. The name Ghadir has stuck (for the Iranian version) in the hobby community, and it may be some time (if every) before we have anything more to go on.
The Resonance-NE is advertised (by the maker) to have a freq range of 30 - 75 MHz. But yes, the Iranian radars are often seen below 30 MHz. Personally I have never seen them below about 28.5 MHz, but I would not be surprised to find they are occasionally found below that.
The OPs image could the Ghadir. A sound recording would clear that up a bit.
When I first saw the image I was tempted to suggest the Canadian CMOR Meteor radar as a possibility, however that is on 38.15 MHz, not 35.15 MHz. So not CMOR. To the OP, if you want to compare sounds / images, other CMOR freqs are 17.45 MHz and 29.85 MHz.
I have seen the CONDOR Meteor radar (Cerro Pachón, Chile) on 35.15 MHz before, but I am not sure if that is still active.
T!
Token
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In the example you have outlined in red, did you actually listen to the signal? If so, what did it sound like? Visually that looks more like CODAR than Ghadir, but without audio it is impossible to be sure. There is a CODAR allocation from 26200 - 26350 kHz in ITU Region 1 and 3, and 26200 - 26420 kHz in Region 2.
If the band is open I would expect to see CODAR in the red outlined area.
T!
Yes you are right, I think it's CODAR, GHADIR has another signature.
When I see this CODAR signal popping up, channel 6 AM is also alive.
BTW What the thread opener posted is most likely GHADIR. When this signal shows up, the sound is like a long beeeep boooop in AM mode. Its quite a frequent guest here since the near east got lit up politically.
GHADIR: 'Ghadir' OTH Radar - Signal Identification Wiki
www.globalsecurity.org
CODAR is more like a bip bip bip...
www.sigidwiki.com
When I see this CODAR signal popping up, channel 6 AM is also alive.
BTW What the thread opener posted is most likely GHADIR. When this signal shows up, the sound is like a long beeeep boooop in AM mode. Its quite a frequent guest here since the near east got lit up politically.
GHADIR: 'Ghadir' OTH Radar - Signal Identification Wiki
Ghadir radar - Iran - Air Defense Radars
Irans first long-range (1,100 kilometer) radar Ghadir was introduced in 2012 and according to the Islamic Revolution Guards Corps (IRGC) Aerospace Commander Brigadier General Amir Ali Hajizadeh, it has been mass-produced ever since.
CODAR is more like a bip bip bip...
CODAR - Signal Identification Wiki
CODAR (Coastal Ocean Dynamics Applications Radar) is used for near-surface ocean monitoring, such as waves and water current.
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asdasd32r2f123tr312r
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OTH radar is a coverup word for what theese really are. HAARP weather and MKULTRA control signals, just watch the weather if you don't believe.
AB5ID
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Weather Disasters, Politics, And Mental Health
It Is Getting Very Rough Out There
spann.substack.com
Spann asks the right question along the way, but does not wight it correctly:
To stay on topic: Since they blew the OTH radar located on the Krim the 10M Band has become quite clean around here.
I guess I saw GHADIR a few days ago, but very weak in it's impact.
It's called 5th or 6th generation warfare, Mr. Spann. Attacking the cognitive abilities.
The Future of China's Cognitive Warfare: Lessons from the War in Ukraine - War on the Rocks
With the development of AI, neuroscience, and digital applications like social media, senior officers and strategists in the Chinese People's Liberation
warontherocks.com
On which ground, values or base?
To stay on topic: Since they blew the OTH radar located on the Krim the 10M Band has become quite clean around here.
I guess I saw GHADIR a few days ago, but very weak in it's impact.
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Token
Member
This is almost certainly coincidental or a result of conditions, not the Ukrainian strikes.
The attacks resulted in no reduction of operation for things like the 29B6 Container HF OTHR radar. That radar is still transmitting all 8 beams daily, with no changes in frequency habits. After the strikes I specifically looked for changes in this radars activities, and there simply were no changes. One of the strikes may have hit a C^2 node attached to this radar, but not the radar itself. Reports generally just say that Ukraine hit the radar, with no details, but the images I see online indicate a support area was hit, not the radar itself. Besides which, 29B6 does not go up to 10 meters, its operations are below 27 MHz and down to 6.0 MHz.
The visibly damaged long range radar (in the May 22-23, 2024 strike) is a Voronezh-DM radar, and it is VHF, not HF. The exact frequency range of this radar is hard to know, sources disagree, but based on publications from the maker and visual estimation based on photographs of the antenna elements, I would say 150 MHz and higher.
The May 27th strike hit a Voronezh-M radar site. Again, not sure of the exact frequency range, but the antenna elements would not support HF operations, I would think VHF-Hi again.
As near as I can tell, none of the strikes hit anything that would be even close to the 10M band.
T!
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