Q6 Specifications

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 +==Block Diagram==
 +{{SideMenuQ6}}
 +<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==
 +
 +<table x:str border=0 cellpadding=0 cellspacing=0 width=910 style='border-collapse:
 + collapse;table-layout:fixed;width:683pt'>
 +
 + <tr height=17 style='height:12.75pt'>
 + <td height=17 class=xl24 width=64 style='height:12.75pt;width:48pt'><B>Antenna:</B></td>
 + <td width=50 style='width:38pt'></td>
 + <td width=608 style='width:456pt'>29 ft Cassegrain feed, Gain - 51 db across
 + the band.</td>
 + <td width=64 style='width:48pt'></td>
 + <td width=60 style='width:45pt'></td>
 + <td width=64 style='width:48pt'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Feed:<span style='mso-spacerun:yes'>
 + </span>Five horn monopulse</td>
 + <td></td>
 + <td><span style='mso-spacerun:yes'> </span></td>
 + <td></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Depth of Null:<span style='mso-spacerun:yes'>
 + </span>35 db</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Bandwidth:<span style='mso-spacerun:yes'>
 + </span>0.4 degree.</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Polarisation:<span style='mso-spacerun:yes'>
 + </span>Transmit and receive vertical …</td>
 + <td></td>
 + <td><span style='mso-spacerun:yes'> </span></td>
 + <td></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25><span style='mso-spacerun:yes'>
 + </span>… or Transmit left hand circular Receive right hand circular</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25
 + x:str="Rates: 500 mil/second. (both Azimuth and Elevation) ">Rates:<span
 + style='mso-spacerun:yes'> </span>500 mil/second. (both
 + Azimuth and Elevation)<span style='mso-spacerun:yes'> </span></td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25><span style='mso-spacerun:yes'>
 + </span>Would track smoothly at 0.01mils/sec. (1 degree = 17.8 mils)</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Drive:<span style='mso-spacerun:yes'>
 + </span>Hydraulic, Azimuth bearing is hydrostatic.</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Rotation:<span style='mso-spacerun:yes'>
 + </span>Azimuth 360 degrees continuous.</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Elevation:<span style='mso-spacerun:yes'>
 + </span>-2 to +182 degrees.</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=17 style='height:12.75pt'>
 + <td height=17 class=xl24 style='height:12.75pt'></td>
 + <td colspan=5 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 colspan=2 style='height:15.0pt;mso-ignore:colspan'><B>Receiver:</B></td>
 + <td class=xl25>Three channel amplitude monopulse.</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Dynamic Range:<span style='mso-spacerun:yes'> </span>120
 + db.</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Threshold:<span style='mso-spacerun:yes'>
 + </span>Paramps on, 0.6 Mhz I.F. bandwidth, -112 dbm</td>
 + <td></td>
 + <td>.</td>
 + <td></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Preamplifier:<span style='mso-spacerun:yes'> </span>Heated parametric amplifier (one per channel) Gain 17 db, bandwidth
 + 100 khz.</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Noise Figure:<span style='mso-spacerun:yes'>
 + </span>Paramps on: 4 db. Paramps off: 10 db.</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>I.F.:<span style='mso-spacerun:yes'>
 + </span>30 Mhz</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>I.F. Bandwidth:<span style='mso-spacerun:yes'>
 + </span>4.8, 2.4, 1.6 or 0.6 Mhz</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=17 style='height:12.75pt'>
 + <td height=17 class=xl24 style='height:12.75pt'></td>
 + <td colspan=5 style='mso-ignore:colspan'></td>
 + </tr>
 + <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 class=xl25>Power (pulse):<span style='mso-spacerun:yes'>
 + </span>3.00 Megawatts, (average): 5.00 kilowatts</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Duty cycle:<span style='mso-spacerun:yes'>
 + </span>0.00167 max.</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Pulse width:<span style='mso-spacerun:yes'>
 + </span>0.25, 0.5, 1.0 or 2.4 microseconds</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <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>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Frequency:<span style='mso-spacerun:yes'>
 + </span>5.4 to 5.9 GHz. Variable in 243-KHz steps.</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Power Amplifier:<span style='mso-spacerun:yes'>
 + </span>Three-cavity klystron, gain about 30 db.</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=17 style='height:12.75pt'>
 + <td height=17 class=xl24 style='height:12.75pt'></td>
 + <td colspan=5 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 colspan=2 style='height:15.0pt;mso-ignore:colspan'><B>Range
 + System:</B></td>
 + <td class=xl25>Digital, split gate auto track.</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Range:<span style='mso-spacerun:yes'>
 + </span>600 yards to 32,768 nautical miles. unambiguous.</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Rates:<span style='mso-spacerun:yes'>
 + </span>Slew rate 240,000 yards/second maximum.</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Tracking rate:<span style='mso-spacerun:yes'>
 + </span>20,000 yd/sec</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Target acceleration:<span style='mso-spacerun:yes'>
 + </span>600 yards/sec/sec.</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Accuracy:<span style='mso-spacerun:yes'>
 + </span>Skin mode 5 yds Beacon mode 10 yards</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=17 style='height:12.75pt'>
 + <td height=17 class=xl24 style='height:12.75pt'></td>
 + <td colspan=5 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 colspan=2 style='height:15.0pt;mso-ignore:colspan'><B>Angle
 + System:</B></td>
 + <td class=xl25>Rates:<span style='mso-spacerun:yes'>
 + </span>As for antenna</td>
 + <td class=xl25></td>
 + <td colspan=2 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Accuracy:<span style='mso-spacerun:yes'>
 + </span>0.1 mil (S/N greater than 20 db)</td>
 + <td class=xl25></td>
 + <td colspan=2 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25
 + x:str="Scans: Rectangular, raster, circle or spiral. ">Scans:<span
 + style='mso-spacerun:yes'> </span>Rectangular, raster,
 + circle or spiral.<span style='mso-spacerun:yes'> </span></td>
 + <td colspan=3 class=xl25 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Max scan ampl:<span style='mso-spacerun:yes'>
 + </span>2.8 degrees</td>
 + <td colspan=3 class=xl25 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Major axis of rectangular or raster scans selectable</td>
 + <td colspan=3 class=xl25 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Direction of rotation of circle and spiral selectable.</td>
 + <td colspan=3 class=xl25 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Servo bandwidth:<span style='mso-spacerun:yes'>
 + </span>5Hz.</td>
 + <td class=xl25></td>
 + <td colspan=2 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=17 style='height:12.75pt'>
 + <td height=17 class=xl24 style='height:12.75pt'></td>
 + <td colspan=5 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 colspan=2 style='height:15.0pt;mso-ignore:colspan'><B>Data
 + Ouput:</B></td>
 + <td class=xl25>Range, Azimuth and Elevation at 0.1 second intervals.</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>To data recorder (magnetic tape 200 bits per inch) …</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>… and high speed modem (2400 bits per second).</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25 x:str="Range, Azimuth and Elevation at 6 second intervals. ">Range,
 + Azimuth and Elevation at 6 second intervals.<span
 + style='mso-spacerun:yes'> </span></td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>Low speed via teleprinter. (one line per 6 seconds)</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=17 style='height:12.75pt'>
 + <td height=17 class=xl24 style='height:12.75pt'></td>
 + <td colspan=5 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'><B>Displays:</B></td>
 + <td></td>
 + <td class=xl25 x:str="1 x 7 inch A scope. ">1 x 7 inch A scope.<span
 + style='mso-spacerun:yes'> </span></td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25 x:str="1 x 5 inch A scope. ">1 x 5 inch A scope.<span
 + style='mso-spacerun:yes'> </span></td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 + <tr height=20 style='height:15.0pt'>
 + <td height=20 class=xl24 style='height:15.0pt'></td>
 + <td></td>
 + <td class=xl25>1 x 12 inch C scope.</td>
 + <td colspan=3 style='mso-ignore:colspan'></td>
 + </tr>
 +</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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