SPO15 feedback

[AeriaGloria]

21 minutes ago, BIGNEWY said:

Please stop ignoring what is being said, we have said many times if there is new data we can look at we are happy to. 

If the blanker removed becomes default option so it shows F category signals within 25-40 km and other signals as secondary beyond that range with radar on, I think many people will be happy. Make the ME triggerable option the ability to have the blanker on, or atleast make it click box option In normal spawn tab without setting up a trigger 

[Pavlin_33]

13 hours ago, okopanja said:

He flew without a wingman.

At Ponikve Air Base on April 6th there was a single Mig-29 with 2 pilots: Boro Zoraja and Dragan Milenković.

No need to answer to his posts: they are based on nothing and just making random assumptions. I am not really sure what he's trying to do.

[Кош]

14 часов назад, Logan54 сказал:

This is what I m talking about, there could be more then 1 truth. But ED think that should be only their truth. This is what we have here.
I read about 29 a lot, but never seen any SPO limitations. For me main source is russian manuals and I also checked different american and german articles and books.
When you read real docs and then go to DCS and understand that you not able to comply the way of how 29 should be used, this is generate this long threads.
I also want to check russian test pilots memoirs, to figure out.

Truth can be only one.

[AeriaGloria]

You are sitting on an option that would be realistic and make people happy, please make it default with blanker removed or atleast a check box item for slots. I think you will see a lot of happy people if they can see F category signals of search or scan type with radar on………and it’s perfectly realistic 

 

Having the blanker wire removed was perhaps not a defect! 
 

Make your wishes known! 
 

https://forum.dcs.world/topic/381927-

 

 

Edited Monday at 05:30 PM by AeriaGloria

[Harlikwin]

On 11/22/2025 at 7:12 AM, Кош said:

Cool down.

Meanwhile, I've found that KJ1 is polled with checks if it's polling frequency is not drifting, and compensates timing errors against...something. Also KJ1(Blank SPO-15) and KJ5(Radar malfunction) are polled with separate logic from anything else, and, so far, seems to be connected to a signal that becomes the IZP signal in the sync block(turned out IZP passes through sync block but not originates in it).

Problem is everything change names from scheme to scheme. I'm still figuring out...

Yeah, at least based on the ED diagrams posted from 3 different sources, 1 with nothing connected, another with something with a specific pin 4, and the 3rd an unrelated power diagram that wouldn't bother showing stuff like synch circuits I have serious doubts about their interpretation of all of this.

Most likely the No19 "blank signal" is going to some intermediary device that is likely triggering the SPO15, ED mentions it at one point I think, but I forget what its called. 

Also I'm pretty sure the 40ms thing is either a very specific timing related to band switching (according to the text, its 100% about band switching) but it doesn't mean other timings couldn't be used for blanking. Most actual band switch relays would be somewhat faster than that, but there may be AGC timing stuff that needs to settle down, relays are on the order 10-20ms for this specific type of switching. 

But ofc a blanking signal could easily operate at much much higher on/off speeds as its not relay driven.

[Кош]

7 часов назад, Harlikwin сказал:

Yeah, at least based on the ED diagrams posted from 3 different sources, 1 with nothing connected, another with something with a specific pin 4, and the 3rd an unrelated power diagram that wouldn't bother showing stuff like synch circuits I have serious doubts about their interpretation of all of this.

Most likely the No19 "blank signal" is going to some intermediary device that is likely triggering the SPO15, ED mentions it at one point I think, but I forget what its called. 

Also I'm pretty sure the 40ms thing is either a very specific timing related to band switching (according to the text, its 100% about band switching) but it doesn't mean other timings couldn't be used for blanking. Most actual band switch relays would be somewhat faster than that, but there may be AGC timing stuff that needs to settle down, relays are on the order 10-20ms for this specific type of switching. 

But ofc a blanking signal could easily operate at much much higher on/off speeds as its not relay driven.

To be blanked SPO needs a purely logical low voltage low amp signal to 2 gate "macrochips" hehe.

How it's made. Central computer talks with everything via block 35M, and then via several async buses and external IO ports. SPO is connected to external IO port of block 35M. 

Computer sets all controls in this IO block but they are read or sent to devices they are destined for at the pace of sync signals from one of sync blocks which provide different clockings for everything.

Blocking signal scheme has states: "erase" - sent by computer, "start filling" "end filling" - basically it just writes a 1 into the register. And then there is "Broadcast" that is directed by something I can't find yet. But this "Broadcast" is sent not by computer. And has temperature drifting frequency correction. And latency compensation. Also, block tests if signals set by computer are polled. If not, they are sent at computer pace as a backup. It's complicated because half of stuff that interests us is "Here not shown for brevity", or "obvious and hence omitted".

[TOMCATZ]

Hello,

I´m very very happy with the MiG29 and I really enjoy that aircraft. But the obvoisly not working SPO15 (intended or not) makes this lovely nice aircraft pretty much UN-USEABLE against other fighters. 

I just try to be logical here:

1. The Soviets buildt an aircraft that can`t detect threats or defend himself as soon as the radar is turned on? 

2. If I can`t detect any incomming threats, why does every AI MiG-29 or AI Flanker defend enemy radar missiles? And why then every MiG-23 and MiG-21 can detect AMRAAMs as well even with their Radar on?  

So if there is a rule, that rule should be law to all competitors. 

Cheers

TOM

[Flyout]

On 11/24/2025 at 11:58 AM, Pavlin_33 said:

No need to answer to his posts: they are based on nothing and just making random assumptions. I am not really sure what he's trying to do.

My posts are based on studying various aircraft manuals, of which I have many. I don't write unfounded, emotional posts, as some do.

[Flyout]

2 hours ago, TOMCATZ said:

1. The Soviets buildt an aircraft that can`t detect threats or defend himself as soon as the radar is turned on? 

Why does this surprise you? Soviet doctrine differed significantly from American doctrine and envisioned constant ground control of aircraft. From the ground, the group lead was told who to attack, who to defend against, and so on—assuming, of course, the enemy was within ground radar coverage.

Furthermore, MiG-25 interceptors and even Su-33 aircraft didn't have any RWR systems at all.
 

2 hours ago, TOMCATZ said:

2. If I can`t detect any incomming threats, why does every AI MiG-29 or AI Flanker defend enemy radar missiles? And why then every MiG-23 and MiG-21 can detect AMRAAMs as well even with their Radar on?  

That's a very good point. I hope they'll remove the all-seeing RWR system from the AIs.

 

[Pavlin_33]

On 11/26/2025 at 12:12 PM, TOMCATZ said:

1. The Soviets buildt an aircraft that can`t detect threats or defend himself as soon as the radar is turned on? 

They didn't hence why so many posts on this thread.

Edited Thursday at 09:54 AM by Pavlin_33

[AeriaGloria]

AIM-7 is a very smoky missile!