Q6 Specifications

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==Block Diagram== ==Block Diagram==
-[[FPQ-6 Radar|Back to '''FPQ-6 main page''']]+{{SideMenuQ6}}
-[[Image:Q6-block.jpg|left|thumbnail|700px|Note the RCA computer at the heart of the system]]+<BR>
 +[[Image:Q6-block.jpg|left|thumbnail|500px|Note the RCA computer at the heart of the system: Block diagram reconstructed by Bob Hocking]]
 +<BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR>
==Brief System Details== ==Brief System Details==
-<BR>+ 
<table x:str border=0 cellpadding=0 cellspacing=0 width=910 style='border-collapse: <table x:str border=0 cellpadding=0 cellspacing=0 width=910 style='border-collapse:
collapse;table-layout:fixed;width:683pt'> collapse;table-layout:fixed;width:683pt'>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Feed:<span style='mso-spacerun:yes'>                     + <td class=xl25>Feed:<span style='mso-spacerun:yes'>
</span>Five horn monopulse</td> </span>Five horn monopulse</td>
<td></td> <td></td>
- <td><span style='mso-spacerun:yes'> </span></td>+ <td><span style='mso-spacerun:yes'> </span></td>
<td></td> <td></td>
</tr> </tr>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Depth of Null:<span style='mso-spacerun:yes'>         + <td class=xl25>Depth of Null:<span style='mso-spacerun:yes'>
</span>35 db</td> </span>35 db</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Bandwidth:<span style='mso-spacerun:yes'>             + <td class=xl25>Bandwidth:<span style='mso-spacerun:yes'>
</span>0.4 degree.</td> </span>0.4 degree.</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Polarisation:<span style='mso-spacerun:yes'>           + <td class=xl25>Polarisation:<span style='mso-spacerun:yes'>
</span>Transmit and receive vertical …</td> </span>Transmit and receive vertical …</td>
<td></td> <td></td>
- <td><span style='mso-spacerun:yes'> </span></td>+ <td><span style='mso-spacerun:yes'> </span></td>
<td></td> <td></td>
</tr> </tr>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25><span style='mso-spacerun:yes'>                             + <td class=xl25><span style='mso-spacerun:yes'>
</span>… or Transmit left hand circular Receive right hand circular</td> </span>… or Transmit left hand circular Receive right hand circular</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td class=xl25 <td class=xl25
x:str="Rates: 500 mil/second. (both Azimuth and Elevation) ">Rates:<span x:str="Rates: 500 mil/second. (both Azimuth and Elevation) ">Rates:<span
- style='mso-spacerun:yes'>                     </span>500 mil/second. (both+ style='mso-spacerun:yes'> </span>500 mil/second. (both
- Azimuth and Elevation)<span style='mso-spacerun:yes'> </span></td>+ Azimuth and Elevation)<span style='mso-spacerun:yes'> </span></td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
</tr> </tr>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25><span style='mso-spacerun:yes'>                             + <td class=xl25><span style='mso-spacerun:yes'>
</span>Would track smoothly at 0.01mils/sec. (1 degree = 17.8 mils)</td> </span>Would track smoothly at 0.01mils/sec. (1 degree = 17.8 mils)</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Drive:<span style='mso-spacerun:yes'>                    + <td class=xl25>Drive:<span style='mso-spacerun:yes'>
</span>Hydraulic, Azimuth bearing is hydrostatic.</td> </span>Hydraulic, Azimuth bearing is hydrostatic.</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Rotation:<span style='mso-spacerun:yes'>                + <td class=xl25>Rotation:<span style='mso-spacerun:yes'>
</span>Azimuth 360 degrees continuous.</td> </span>Azimuth 360 degrees continuous.</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Elevation:<span style='mso-spacerun:yes'>              + <td class=xl25>Elevation:<span style='mso-spacerun:yes'>
</span>-2 to +182 degrees.</td> </span>-2 to +182 degrees.</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Dynamic Range:<span style='mso-spacerun:yes'>      </span>120+ <td class=xl25>Dynamic Range:<span style='mso-spacerun:yes'> </span>120
db.</td> db.</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Threshold:<span style='mso-spacerun:yes'>              + <td class=xl25>Threshold:<span style='mso-spacerun:yes'>
</span>Paramps on, 0.6 Mhz I.F. bandwidth, -112 dbm</td> </span>Paramps on, 0.6 Mhz I.F. bandwidth, -112 dbm</td>
<td></td> <td></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Preamplifier:<span style='mso-spacerun:yes'>            </span>Heated parametric amplifier (one per channel) Gain 17 db, bandwidth+ <td class=xl25>Preamplifier:<span style='mso-spacerun:yes'> </span>Heated parametric amplifier (one per channel) Gain 17 db, bandwidth
100 khz.</td> 100 khz.</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Noise Figure:<span style='mso-spacerun:yes'>           + <td class=xl25>Noise Figure:<span style='mso-spacerun:yes'>
</span>Paramps on: 4 db. Paramps off: 10 db.</td> </span>Paramps on: 4 db. Paramps off: 10 db.</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>I.F.:<span style='mso-spacerun:yes'>                        + <td class=xl25>I.F.:<span style='mso-spacerun:yes'>
</span>30 Mhz</td> </span>30 Mhz</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>I.F. Bandwidth:<span style='mso-spacerun:yes'>        + <td class=xl25>I.F. Bandwidth:<span style='mso-spacerun:yes'>
</span>4.8, 2.4, 1.6 or 0.6 Mhz</td> </span>4.8, 2.4, 1.6 or 0.6 Mhz</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<tr height=20 style='height:15.0pt'> <tr height=20 style='height:15.0pt'>
<td height=20 class=xl26 colspan=2 style='height:15.0pt;mso-ignore:colspan'><B>Transmitter:</B></td> <td height=20 class=xl26 colspan=2 style='height:15.0pt;mso-ignore:colspan'><B>Transmitter:</B></td>
- <td class=xl25>Power (pulse):<span style='mso-spacerun:yes'>         + <td class=xl25>Power (pulse):<span style='mso-spacerun:yes'>
</span>3.00 Megawatts, (average): 5.00 kilowatts</td> </span>3.00 Megawatts, (average): 5.00 kilowatts</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Duty cycle:<span style='mso-spacerun:yes'>              + <td class=xl25>Duty cycle:<span style='mso-spacerun:yes'>
</span>0.00167 max.</td> </span>0.00167 max.</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Pulse width:<span style='mso-spacerun:yes'>             + <td class=xl25>Pulse width:<span style='mso-spacerun:yes'>
</span>0.25, 0.5, 1.0 or 2.4 microseconds</td> </span>0.25, 0.5, 1.0 or 2.4 microseconds</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Pulse Rep. Freq.:<span style='mso-spacerun:yes'>     + <td class=xl25>Pulse Rep. Freq.:<span style='mso-spacerun:yes'>
</span>150 or 640 p.p.s. normal (range from 142 to 1707 p.p.s. available)</td> </span>150 or 640 p.p.s. normal (range from 142 to 1707 p.p.s. available)</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Frequency:<span style='mso-spacerun:yes'>              + <td class=xl25>Frequency:<span style='mso-spacerun:yes'>
</span>5.4 to 5.9 GHz. Variable in 243-KHz steps.</td> </span>5.4 to 5.9 GHz. Variable in 243-KHz steps.</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Power Amplifier:<span style='mso-spacerun:yes'>      + <td class=xl25>Power Amplifier:<span style='mso-spacerun:yes'>
</span>Three-cavity klystron, gain about 30 db.</td> </span>Three-cavity klystron, gain about 30 db.</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Range:<span style='mso-spacerun:yes'>                    + <td class=xl25>Range:<span style='mso-spacerun:yes'>
</span>600 yards to 32,768 nautical miles. unambiguous.</td> </span>600 yards to 32,768 nautical miles. unambiguous.</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Rates:<span style='mso-spacerun:yes'>                     + <td class=xl25>Rates:<span style='mso-spacerun:yes'>
</span>Slew rate 240,000 yards/second maximum.</td> </span>Slew rate 240,000 yards/second maximum.</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Tracking rate:<span style='mso-spacerun:yes'>          + <td class=xl25>Tracking rate:<span style='mso-spacerun:yes'>
</span>20,000 yd/sec</td> </span>20,000 yd/sec</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Target acceleration:<span style='mso-spacerun:yes'>  + <td class=xl25>Target acceleration:<span style='mso-spacerun:yes'>
</span>600 yards/sec/sec.</td> </span>600 yards/sec/sec.</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Accuracy:<span style='mso-spacerun:yes'>                + <td class=xl25>Accuracy:<span style='mso-spacerun:yes'>
</span>Skin mode 5 yds Beacon mode 10 yards</td> </span>Skin mode 5 yds Beacon mode 10 yards</td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
Line 243: Line 245:
<td height=20 class=xl24 colspan=2 style='height:15.0pt;mso-ignore:colspan'><B>Angle <td height=20 class=xl24 colspan=2 style='height:15.0pt;mso-ignore:colspan'><B>Angle
System:</B></td> System:</B></td>
- <td class=xl25>Rates:<span style='mso-spacerun:yes'>                     + <td class=xl25>Rates:<span style='mso-spacerun:yes'>
</span>As for antenna</td> </span>As for antenna</td>
<td class=xl25></td> <td class=xl25></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Accuracy:<span style='mso-spacerun:yes'>                + <td class=xl25>Accuracy:<span style='mso-spacerun:yes'>
</span>0.1 mil (S/N greater than 20 db)</td> </span>0.1 mil (S/N greater than 20 db)</td>
<td class=xl25></td> <td class=xl25></td>
Line 261: Line 263:
<td class=xl25 <td class=xl25
x:str="Scans: Rectangular, raster, circle or spiral. ">Scans:<span x:str="Scans: Rectangular, raster, circle or spiral. ">Scans:<span
- style='mso-spacerun:yes'>                      </span>Rectangular, raster,+ style='mso-spacerun:yes'> </span>Rectangular, raster,
- circle or spiral.<span style='mso-spacerun:yes'> </span></td>+ circle or spiral.<span style='mso-spacerun:yes'> </span></td>
<td colspan=3 class=xl25 style='mso-ignore:colspan'></td> <td colspan=3 class=xl25 style='mso-ignore:colspan'></td>
</tr> </tr>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Max scan ampl:<span style='mso-spacerun:yes'>        + <td class=xl25>Max scan ampl:<span style='mso-spacerun:yes'>
</span>2.8 degrees</td> </span>2.8 degrees</td>
<td colspan=3 class=xl25 style='mso-ignore:colspan'></td> <td colspan=3 class=xl25 style='mso-ignore:colspan'></td>
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<td height=20 class=xl24 style='height:15.0pt'></td> <td height=20 class=xl24 style='height:15.0pt'></td>
<td></td> <td></td>
- <td class=xl25>Servo bandwidth:<span style='mso-spacerun:yes'>     + <td class=xl25>Servo bandwidth:<span style='mso-spacerun:yes'>
</span>5Hz.</td> </span>5Hz.</td>
<td class=xl25></td> <td class=xl25></td>
Line 319: Line 321:
<td class=xl25 x:str="Range, Azimuth and Elevation at 6 second intervals. ">Range, <td class=xl25 x:str="Range, Azimuth and Elevation at 6 second intervals. ">Range,
Azimuth and Elevation at 6 second intervals.<span Azimuth and Elevation at 6 second intervals.<span
- style='mso-spacerun:yes'> </span></td>+ style='mso-spacerun:yes'> </span></td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
</tr> </tr>
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<td></td> <td></td>
<td class=xl25 x:str="1 x 7 inch A scope. ">1 x 7 inch A scope.<span <td class=xl25 x:str="1 x 7 inch A scope. ">1 x 7 inch A scope.<span
- style='mso-spacerun:yes'> </span></td>+ style='mso-spacerun:yes'> </span></td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
</tr> </tr>
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<td></td> <td></td>
<td class=xl25 x:str="1 x 5 inch A scope. ">1 x 5 inch A scope.<span <td class=xl25 x:str="1 x 5 inch A scope. ">1 x 5 inch A scope.<span
- style='mso-spacerun:yes'> </span></td>+ style='mso-spacerun:yes'> </span></td>
<td colspan=3 style='mso-ignore:colspan'></td> <td colspan=3 style='mso-ignore:colspan'></td>
</tr> </tr>
Line 353: Line 355:
</tr> </tr>
</table> </table>
 +
 +
 +[[#top]]
 +<BR>

Current revision

[edit]

Block Diagram

FPQ-6 Radar

Back to Station Equipment


Note the RCA computer at the heart of the system: Block diagram reconstructed by Bob Hocking
Enlarge
Note the RCA computer at the heart of the system: Block diagram reconstructed by Bob Hocking
























[edit]

Brief System Details

Antenna: 29 ft Cassegrain feed, Gain - 51 db across the band.
Feed: Five horn monopulse
Depth of Null: 35 db
Bandwidth: 0.4 degree.
Polarisation: Transmit and receive vertical …
… or Transmit left hand circular Receive right hand circular
Rates: 500 mil/second. (both Azimuth and Elevation)
Would track smoothly at 0.01mils/sec. (1 degree = 17.8 mils)
Drive: Hydraulic, Azimuth bearing is hydrostatic.
Rotation: Azimuth 360 degrees continuous.
Elevation: -2 to +182 degrees.
Receiver: Three channel amplitude monopulse.
Dynamic Range: 120 db.
Threshold: Paramps on, 0.6 Mhz I.F. bandwidth, -112 dbm .
Preamplifier: Heated parametric amplifier (one per channel) Gain 17 db, bandwidth 100 khz.
Noise Figure: Paramps on: 4 db. Paramps off: 10 db.
I.F.: 30 Mhz
I.F. Bandwidth: 4.8, 2.4, 1.6 or 0.6 Mhz
Transmitter: Power (pulse): 3.00 Megawatts, (average): 5.00 kilowatts
Duty cycle: 0.00167 max.
Pulse width: 0.25, 0.5, 1.0 or 2.4 microseconds
Pulse Rep. Freq.: 150 or 640 p.p.s. normal (range from 142 to 1707 p.p.s. available)
Frequency: 5.4 to 5.9 GHz. Variable in 243-KHz steps.
Power Amplifier: Three-cavity klystron, gain about 30 db.
Range System: Digital, split gate auto track.
Range: 600 yards to 32,768 nautical miles. unambiguous.
Rates: Slew rate 240,000 yards/second maximum.
Tracking rate: 20,000 yd/sec
Target acceleration: 600 yards/sec/sec.
Accuracy: Skin mode 5 yds Beacon mode 10 yards
Angle System: Rates: As for antenna
Accuracy: 0.1 mil (S/N greater than 20 db)
Scans: Rectangular, raster, circle or spiral.
Max scan ampl: 2.8 degrees
Major axis of rectangular or raster scans selectable
Direction of rotation of circle and spiral selectable.
Servo bandwidth: 5Hz.
Data Ouput: Range, Azimuth and Elevation at 0.1 second intervals.
To data recorder (magnetic tape 200 bits per inch) …
… and high speed modem (2400 bits per second).
Range, Azimuth and Elevation at 6 second intervals.
Low speed via teleprinter. (one line per 6 seconds)
Displays: 1 x 7 inch A scope.
1 x 5 inch A scope.
1 x 12 inch C scope.


#top

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