Iranian UAVs | News and Discussions

[Hack-Hook]

Shaheds use as GNSS receiver a SDR board.

I guess they must use something like...

GNSS-SDR

An open source Global Navigation Satellite Systems software-defined receiver.

gnss-sdr.org

GitHub - gnss-sdr/gnss-sdr: GNSS-SDR, an open-source software-defined GNSS receiver

GNSS-SDR, an open-source software-defined GNSS receiver - gnss-sdr/gnss-sdr

github.com

Like @muhammed45 said, it likely uses all available GNSS signals: GPS, GLONASS, Beidou, Galileo and so on. It add accuracy, the more signals the better.

But USA should not cooperate adding accuracy allowing GPS use in that zone.

A Technophile’s Guide to the Evolution of Russian Shahed Drones

The December 2023 versions of the cheap, slow-moving yet powerful Shahed-136 UAVs have seen a number of technical changes to those that first began to terrorize Ukraine on Sept. 13, 2022.

www.kyivpost.com

Shaheds have gone over several round of change in Russia

The engine


The motor in the original Iranian UAVs was a copy of the German Limbach Flugmotoren L-550 aircraft engine which Teheran calls the MADO MD-550. It is a four-cylinder two-stroke run on gasoline producing 50 bhp. The engines were fitted with Japanese or Irish carburetors and American-made servos, which were later replaced with Chinese versions to control the wings.The Russian-produced drones use a Chinese copy of the original engine manufactured by the Beijing company MicroPilot UAV Flight Control Systems with a carburetors, servos and even spark plugs being sourced from a number of countries.

Navigation


The original Shaheds employed inertial navigation blocks, manufactured in Canada, that relied on commercially available GPS systems for navigation with a limited CEP accuracy of around 10 to 15 meters. The Russian variants use the “Komet” navigation system, which incorporates GLONASS, Russia’s version of GPS for guidance. This is almost the only component of Russian production in these drones.A recently recovered downed UAV was reported as being fitted with a SIM card linked to a Ukrainian provider and 4G modem.

Structure


The original Iranian design used a cast fiberglass body lined with a plastic printed honeycomb filler to hold internal components in place.
The newer Russian versions have a composite fuselage filled with a polyurethane-type filler, which is probably used to reduce costs as it seems to offer no operational or other advantage.

Warhead


The standard warhead in the Iranian variant of the UAV is a high-explosive fragmentation charge weighing between 30 and 50 kilograms. A small number have been found with a columnar warhead around which were copper-lined shaped charges.
The Russian version seems to have a slightly smaller explosive charge around which have been packed tungsten ball bearings to act as shrapnel.

 

[muhammed45]

if you don't have the encryption codes you will not be able to use them

That's why you have black market out there. You just have to study the receiver. It wasn't our job, however, we would have been forced into studying them if we lacked the required data about the receivers.

Shaheds use as GNSS receiver a SDR board.

I guess they must use something like...

GNSS-SDR

An open source Global Navigation Satellite Systems software-defined receiver.

gnss-sdr.org

GitHub - gnss-sdr/gnss-sdr: GNSS-SDR, an open-source software-defined GNSS receiver

GNSS-SDR, an open-source software-defined GNSS receiver - gnss-sdr/gnss-sdr

github.com

Like @muhammed45 said, it likely uses all available GNSS signals: GPS, GLONASS, Beidou, Galileo and so on. It add accuracy, the more signals the better.

But USA should not cooperate adding accuracy allowing GPS use in that zone.

The temporal resolution allows the receiver to just wait for other 4 sats on one plane to appear, when Americans switch the overpassing sats off almost 5 min to 1 hour in that speceific location. Impossible to deny users the wavelength of GPS transmitters. Americans are not that stupid.

 

[Hack-Hook]

That's why you have black market out there. You just have to study the receiver. It wasn't our job, however, we would have been forced into studying them if we lacked the required data about the receivers.

do that please . i mean the encrypted military one

 

[muhammed45]

do that please . i mean the encrypted military one

They have done that already.


For those guys that I know of, this was a God sent box of multiple technologies

Thank you. @925boy bro no offense.

MOD EDIT: Kindly avoid racist language.

 

[Mehdipersian]

They have done that already.
View attachment 23944

For those guys that I know of, this was a God sent box of multiple technologies

Thank you nigga. @925boy bro no offense.

View attachment 23947

Bro, please don't use that word even as a joke.
Behind this word are several centuries of slavery and racism of Europeans(and then Americans) .

 

[muhammed45]

Bro, please don't use that word even as a joke.
Behind this word are several centuries of slavery and racism of Europeans(and then Americans) .

Sure you are right bro.

@925boy gave me that title a long time ago in the previous forum. He knows what I mean

 

[Hack-Hook]

They have done that already.
View attachment 23944

For those guys that I know of, this was a God sent box of multiple technologies

Thank you nigga. @925boy bro no offense.

View attachment 23947

welcome the encryption codes changed by pressing a key.

 

[muhammed45]

welcome the encryption codes changed by pressing a key.

You have learned how they communicate and how they code/decode. You said the obvious thing.

 

[tsunset]

They have done that already.
View attachment 23944

For those guys that I know of, this was a God sent box of multiple technologies

Thank you nigga. @925boy bro no offense.

View attachment 23947

I wonder what would have happened here if i were to call Biden or Trump cr*ck*rs

Terrorist label probably!

 

[Hack-Hook]

You have learned how they communicate and how they code/decode. You said the obvious thing.

you didn't need RQ-71 for that

There are four GPS signal specifications designed for civilian use. In order of date of introduction, these are: L1 C/A, L2C, L5 and L1C.[1] L1 C/A is also called the legacy signal and is broadcast by all currently operational satellites. L2C, L5 and L1C are modernized signals and are only broadcast by newer satellites (or not yet at all). Furthermore, as of January 2021, none of these three signals are yet considered to be fully operational for civilian use. In addition to the four aforementioned signals, there are restricted signals with published frequencies and chip rates, but the signals use encrypted coding, restricting use to authorized parties. Some limited use of restricted signals can still be made by civilians without decryption; this is called codeless and semi-codeless access, and this is officially supported.[2][3]

The interface to the User Segment (GPS receivers) is described in the Interface Control Documents (ICD). The format of civilian signals is described in the Interface Specification (IS) which is a subset of the ICD.

for the military code read the rest here its too long to copy and paste here

GPS signals - Wikipedia

en.wikipedia.org

in the notes there is enough data for you to build a gps interface

 

[muhammed45]

You have learned how they communicate and how they code/decode. You said the obvious thing.

Why don't you pay attention. Listen togeneral try to find the keywords.

آپارات - سرویس اشتراک ویدیو

www.aparat.com

 

[Flames In The Desert]

Ababil 2 equipped with an optronic seeker,tho this looks like it could be taken from an existing weapon.

 

[BHAN85]

That's why you have black market out there. You just have to study the receiver. It wasn't our job, however, we would have been forced into studying them if we lacked the required data about the receivers.


The temporal resolution allows the receiver to just wait for other 4 sats on one plane to appear, when Americans switch the overpassing sats off almost 5 min to 1 hour in that speceific location. Impossible to deny users the wavelength of GPS transmitters. Americans are not that stupid.

Automatic switch off when sats approach the zone and automatic switch on when it's far, it's simple to do, but they dont want, because USA interests are let things blowing up in Europe.

They support Ukraine with weapons and more fuel to war.

That's USA interests in Ukraine: weaken Russia, it's not protect Ukrainian people.

 

[BHAN85]

A Technophile’s Guide to the Evolution of Russian Shahed Drones

The December 2023 versions of the cheap, slow-moving yet powerful Shahed-136 UAVs have seen a number of technical changes to those that first began to terrorize Ukraine on Sept. 13, 2022.

www.kyivpost.com

Shaheds have gone over several round of change in Russia

"Navigation" part of that text are lies.

At least in Shaheds flying in Ukraine.

There are pics of electronic boards of downed Shaheds by Ukraine.

They use as GNSS receiver a SDR (Software Defined Radio) Board.

Software-defined radio - Wikipedia

en.wikipedia.org

Here a example of open source implementation of GNSS receivers with a SDR board:

GitHub - gnss-sdr/gnss-sdr: GNSS-SDR, an open-source software-defined GNSS receiver

GNSS-SDR, an open-source software-defined GNSS receiver - gnss-sdr/gnss-sdr

github.com

 

[Hack-Hook]

"Navigation" part of that text are lies.

At least in Shaheds flying in Ukraine.

There are pics of electronic boards of downed Shaheds by Ukraine.

They use as GNSS receiver a SDR (Software Defined Radio) Board.

Software-defined radio - Wikipedia

en.wikipedia.org

Here a example of open source implementation of GNSS receivers with a SDR board:

GitHub - gnss-sdr/gnss-sdr: GNSS-SDR, an open-source software-defined GNSS receiver

GNSS-SDR, an open-source software-defined GNSS receiver - gnss-sdr/gnss-sdr

github.com

not exactly there were a tear down article about gran 2 at the old forum that one also showed different positioning receiver from shahed-2 and even their number were different