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In sci.physics Fred Bloggs wrote:

wrote:
In sci.physics Fred Bloggs wrote:

wrote:

TRR - Target range radar; tracked the target in range in ECM, frequency
agile to defeat ECM, elevation and azimuth provided by the ECM source

How exactly did that mode work, tracking target range but using EW
interference for az/el? How could you not know your az/el if you're
getting detections from your pulse?

The TRR was slaved in azimuth and elevation to the TTR.

The TTR had the required hardware to track in azimuth and elevation.

When jammed, the TTR tracked the jamming source.

The TRR provided only range information.

The TTR was X band.

The TRR was Ku band and frequency agile to get around the jamming.

Frequency agile Ku band transmission? What kind of tube did they use for
that? Wondering why the Ku band could not just take a handoff and do the
tracking on its own, must not have been a stable track. What kind of
cheap ill-begotten antenna gets you less angular resolution at Ku band
than X-band?

It used magnetrons, dual, independant receivers and transmitters and a
panoramic display.

It takes a quadurature feed to get angular error information and the
TRR didn't have that and didn't need it as you got all the angular
information needed from the TTR.

--
Jim Pennino

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