Arrakis, link to the page describing No 7 which is said to be close relatives to No 6.
Ðàäèîëîêàöèîííàÿ ñèñòåìà ïîñàäêè ñàìîëåòîâ ÐÑÏ-7 - Ìóçåé íåáûòîâîé ýëåêòðîíèêè
What confises me is after the photos and graphs explaining how it works and more photos there are given characteristics of the locator. Split into 2 parts: "Despatcher locator" and "Landing locator". Which one is meaningful I don't know.
"Despatcher locator" says
Exactness:
— by distance - 1% of the scale of the indicator
- by "azimut" 1% (likely error)
Recognition of planes
— in passive regime - by automatic radiopelengator;
— in active regime - by automatic radiopelengator and by the signals of recognition of the plane's auto-replier.
"Landing locator" says
Radiolocator can work in 3 regimes:
— landing;
— defining;
— round scope glance.
Max distance by plane IL-14 at flight height 1,000m:
— in passive work no lesser than 30 km;
— in active work no lesser than 40 km.
Обзор в горизонтальной плоскости:
— в режиме посадки ±15°, —20° - +10°; +20° - -10°;
— в режиме кругового обзора 360°. Обзор в вертикальной плоскости:
— в режиме посадки —1° - +8°;
— в режиме определения высоты —1° - +22°.
Ширина диаграммы направленности курсовой антенны:
— в горизонтальной плоскости 0,7°;
— в вертикальной плоскости 3,5°.
Ширина диаграммы направленности глиссадной антенны:
— в горизонтальной плоскости 3,8°;
— в вертикальной плоскости 0,7°. Коэффициент усиления:
— курсовой антенны ~ 8000;
— глиссадной антенны ~ 8200.
Уровень боковых лепестков по отношению к основному лучу по мощности 1 %.
Угол перемещения антенны курса в вертикальной плоскости 22°; угол перемещения антенны глиссады в горизонтальной плоскости 30°.
Мощность передатчика в импульсе не менее 70 кВт.
Чувствительность приемника не менее 120 дб.
Разрешающая способность в пассивном режиме:
— по дальности 1,2%
Exactness:
by distance:
— at round around glance and definition of height - 1% of the scale of the distance of indicator;
by "azimut":
— at round around glance 2 o (degrees);
by height:
— in regime of landing at plane's flight at constant height - 100 м;
— at defining the height - 300 м.
Q-ty of fixed frequencies 6, of these 2 are operative. (alarm? back up)
Minimum height of bringing the planes to aerodrome runway - 50m
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Now, I'll find eventually where the forum quoted, but looks it quoted 100 and 300 meters from this link. And as it is split into 2 parts - "dispatcher" and "landing" locators - it seems to me I am not sure can it be the "landing" one is not on the ground but is in the aiplane? And theses errors 100 and 300 are then for airplane, not for ground control at all. Sorry by looking at the scheme I can't undertsnad for the life of me :o) where are those locators installed.