Test Set TS-172A/UP.Headquarters, Department of the Army, 1991 - Radar |
From inside the book
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Echo Box TS - 172A / UP DESCRIPTION pur Echo Box TS - 172A / UP SECTION I GENERAL. Figure 1-1 . General View Echo Box - TS - 172A / UP. 1-0 1 Section GENERAL NAVSHIPS 1-1 Echo Box TS-172A/UP.
Echo Box TS - 172A / UP DESCRIPTION pur Echo Box TS - 172A / UP SECTION I GENERAL. Figure 1-1 . General View Echo Box - TS - 172A / UP. 1-0 1 Section GENERAL NAVSHIPS 1-1 Echo Box TS-172A/UP.
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... Figure 1-1 , consists of a hand - tuned resonator of high Q , excited by means of a loop which is connected by a flexible cable to the R - F test point of the radar . An auxiliary loop connected to a power meter serves as a tuning ...
... Figure 1-1 , consists of a hand - tuned resonator of high Q , excited by means of a loop which is connected by a flexible cable to the R - F test point of the radar . An auxiliary loop connected to a power meter serves as a tuning ...
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... Figure 1-2 . Schematic Wiring Diagram of Output Circuit Echo Box TS - 172A / UP SECTION II INSTALLATION. Paragraph 7 Table 1-1-1-2 equivalent , and the mounting is identical . The newer version is different in that : a . The unit is more ...
... Figure 1-2 . Schematic Wiring Diagram of Output Circuit Echo Box TS - 172A / UP SECTION II INSTALLATION. Paragraph 7 Table 1-1-1-2 equivalent , and the mounting is identical . The newer version is different in that : a . The unit is more ...
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... Figure 2-1 . Construction of Pickup Dipole Echo Box TS - 172A / UP. AND ADJUSTMENT 1. INSTALLATION - a . DIRECTIONAL COUPLER In use the echo box is connected to a directional coupler in the radar waveguide or coaxial line . A directional ...
... Figure 2-1 . Construction of Pickup Dipole Echo Box TS - 172A / UP. AND ADJUSTMENT 1. INSTALLATION - a . DIRECTIONAL COUPLER In use the echo box is connected to a directional coupler in the radar waveguide or coaxial line . A directional ...
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... echo box back in the ( 9 ) Enter in the log the date of the initial adjust- ment and of any readjustment . Figure 2-2 . H - 153 H - 155 H - 157 1. RINGTIME PREDICTION a . If one knows how long. 2-2 2 Section INSTALLATION NAVSHIPS.
... echo box back in the ( 9 ) Enter in the log the date of the initial adjust- ment and of any readjustment . Figure 2-2 . H - 153 H - 155 H - 157 1. RINGTIME PREDICTION a . If one knows how long. 2-2 2 Section INSTALLATION NAVSHIPS.
Common terms and phrases
A-scope adjust Amphenol anodized BNC connectors brass ½ hard CAPACITORS center conductor CHECKED BY CURRENT circuit clear iridite dipped COLOR CODE connectors DATE TIME RING DB.DOWN RADAR MODEL DB.DOWN YDS decibels dial assembly dial housing dial reading dielectric directional coupler echo box meter Echo Box TS-172A/UP ECHO BOX TS-172A/UP,SERIAL erratic expected ringtime FIGURES FIRST SECOND frequency gray navy enameled JSCo local oscillator LOCATION RADAR CONDITIONS:-PULSE magnetron maximum meter reading METERS OBSERVED DATE MODEL ECHO BOX noise figure operation oscillator output loop oxalic acid panel PERFORMANCE CRYSTAL TRANSMITTER pickup dipole plated and clear plunger pulse length PULSE POWER radar antenna RADAR CONDITIONS:-PULSE LENGTH RADAR METERS OBSERVED RADAR MODEL ECHO RADAR PERFORMANCE CRYSTAL radar receiver resonator ringtime measurement RINGTIME RADAR METERS screws SERIAL LOCATION RADAR set output reading SIGNIFICANT FIGURES silver plated slide rule solder TEST ANTENNA TRANSMITTER POWER OUTPUT tune the echo uncorrected ringtime washer yards zinc plated
Popular passages
Page 3-10 - ... as the noise previously observed with the echo box detuned. If the receiver recovery is slow, the noise will be weak and will not reappear for some time after the end of the ringtime pattern (see the right-hand portion of Figure 3-11).
Page 3-4 - The end of the ringtime is not at the place where the bright or saturated part of the signal ends, but where the fainter portion of the signal disappears into the background noise. Therefore, when reading...
Page 3-9 - This check will show whether the AFC is locked on the proper frequency. Stop the radar antenna and tune the echo box for maximum meter reading. Turn off the AFC...
Page 3-10 - If the above procedure does not produce a series of curves of identical shape (as indicated) giving a TR recovery point, and if the ringtime is short, then it is probable that the TR recovery time is much too high and is greater than the ringtime.
Page 3-10 - Now retune the echo box to maximum meter reading and again observe the indicator pattern. If the receiver recovery time is normal, the background noise will reappear immediately after the end of the ringtime pattern, and this noise will be approximately...
Page 3-4 - With the radar antenna in rotation, set the receiver gain at minimum and adjust the intensity (bias) so that there is a very slight radial trace on the PPI indicator. (2) Increase receiver gain until the PPI area seems to be just half covered with flecks of "snow".
Page 3-9 - Further slight reduction in gain setting will produce another pattern such as curve C, again similar in shape Figure 3-10.
Page 3-12 - Frequency pulling of transmitter due to bad rotating joint or to reflecting object near radar antenna.
Page 3-17 - Crystal cartridges will stand only a limited amount of mechanical shock and should be handled with the same care as vacuum tubes.