Yes this is true in the Documentation is a dynasty Dvina!

The documentation is all there is to know.

Another thing Translation as an example in Russian language, I found some errors.

In English documentation Objectives decreased height of 300 meters it is true, in Russian and 100 meters is a mistake.

Detection fighter about 70 km is not always so for more than 70 km.

Example F-4 Phantom on the detection of 90 km.

You Hpasp!

You said long ago that the Dvina will be more difficult, but it's apparently not quite so difficult as I thought.

I think the Dvina easier to manage, but harder to hover!

I would say that the Dvina very easy to manage too easy and not many settings.

Volkhov much harder Dvina my opinion.

Dvina has a wide beam modes only and 110/55 km, which is much easier to Volkhov!

Great!

What is the difference between V-750V 11D and V-750VM/VMK 11DM/DMK missiles, and between SA-75M/MK Dvina “doghouse” (SA-2F) and say 2, SA-75M Dvina “three van” (SA-2B) with V-750V 11D (Guideline mod.1) (partuculary in tracking and missile guding...). See the picture I've posted couple post ago, its from "harakteristiki S-75 po A-11" (.djvu). There has been told that SA-75 is useless against "Habu" for altitude > 20km, due to late target acquire and tracking, and limitation of V-750VN above 18 km (only 1 or 2 can be guided (???)) - even when used not with "Dvina" but better - "Desna". There is something that doesn't fit... Maybe SA-2F has some upgrades we didn't know, except the new missile.

It is possible!

When target is going away from you with speed which is slower than speed of the missile.

70 km is for MiG-21, which is a bit smaller than F-4...

Could you share your information source?

F-15 and F-16 is also 90 km.

Stealth means possible!

Velocity missile Dvina of 1200 m/s or more?

Target height of 100 meters can Dvina or not?

Peters ADA site. In German, which I'm not terribly good at, so some margin for error.

What is the difference between V-750V 11D and V-750VM/VMK 11DM/DMK missiles,

Manual from page 27...

and between SA-75M/MK Dvina “doghouse” (SA-2F) and say 2, SA-75M Dvina “three van” (SA-2B) with V-750V 11D (Guideline mod.1) (partuculary in tracking and missile guding...).
... Maybe SA-2F has some upgrades we didn't know, except the new missile.

Lots.

At the bottom of this page, you can find several hundred pages technical bulletins, describing these upgrades.
http://historykpvo.narod2.ru/
(after ASURK-1, look for 36..51, CA-75MK)

In nutshell...

The first SA-75 Dvina "five van" (SA-2A) was not upgradable, and had lower performance than the "three van" version.
This type was removed from service in 1975.

The SA-75M Dvina "three van" (SA-2B) was the system fielded from 1960, that were constantly upgraded during its lifetime.
1965, it received the H<1 mode (not simulated)

1969, missile beacon transmit power increased from 20W to 80W (against missile channel jamming)
PA-OO cabin the "Doghouse" for target optical tracking (not simulated)
RAB po K3, ADA mode, Ground mode, APP-75M
This Mid Life Upgrade was huge, and took half year of work for each battery.

You can read about it here in detail:
http://narod.ru/disk/22604347000/%D0%98%...%201..djvu.html

This modification was noticed by the US, and this version received the misleading SA-2F code.

1973, IFF (not simulated)

1975, DOGON