manualshive.com logo in svg

Racal Instruments RA6790/GM, Technical Manual

The Racal Instruments RA6790/GM is a high-performance communications receiver with a wide frequency range. For detailed operation and maintenance instructions, download the free Technical Manual from our website. The manual provides in-depth information on the product's features and functionalities. Download it now from manualshive.com.

Share
Download
background image

Summary of Contents for RA6790/GM

Page 1: ......

Page 2: ......

Page 3: ......

Page 4: ......

Page 5: ......

Page 6: ......

Page 7: ......

Page 8: ......

Page 9: ......

Page 10: ......

Page 11: ......

Page 12: ......

Page 13: ......

Page 14: ......

Page 15: ......

Page 16: ......

Page 17: ......

Page 18: ......

Page 19: ......

Page 20: ......

Page 21: ......

Page 22: ......

Page 23: ......

Page 24: ......

Page 25: ......

Page 26: ......

Page 27: ......

Page 28: ......

Page 29: ......

Page 30: ......

Page 31: ......

Page 32: ......

Page 33: ......

Page 34: ......

Page 35: ......

Page 36: ......

Page 37: ......

Page 38: ......

Page 39: ......

Page 40: ......

Page 41: ......

Page 42: ......

Page 43: ......

Page 44: ......

Page 45: ......

Page 46: ......

Page 47: ......

Page 48: ......

Page 49: ......

Page 50: ......

Page 51: ......

Page 52: ......

Page 53: ......

Page 54: ......

Page 55: ......

Page 56: ......

Page 57: ......

Page 58: ......

Page 59: ......

Page 60: ......

Page 61: ......

Page 62: ......

Page 63: ......

Page 64: ......

Page 65: ......

Page 66: ......

Page 67: ......

Page 68: ......

Page 69: ......

Page 70: ......

Page 71: ......

Page 72: ......

Page 73: ......

Page 74: ......

Page 75: ......

Page 76: ......

Page 77: ......

Page 78: ......

Page 79: ......

Page 80: ......

Page 81: ......

Page 82: ......

Page 83: ......

Page 84: ......

Page 85: ......

Page 86: ......

Page 87: ......

Page 88: ......

Page 89: ......

Page 90: ......

Page 91: ......

Page 92: ......

Page 93: ......

Page 94: ......

Page 95: ......

Page 96: ......

Page 97: ......

Page 98: ......

Page 99: ......

Page 100: ......

Page 101: ......

Page 102: ......

Page 103: ......

Page 104: ......

Page 105: ......

Page 106: ......

Page 107: ......

Page 108: ......

Page 109: ......

Page 110: ......

Page 111: ......

Page 112: ......

Page 113: ......

Page 114: ......

Page 115: ......

Page 116: ......

Page 117: ......

Page 118: ......

Page 119: ......

Page 120: ......

Page 121: ......

Page 122: ......

Page 123: ......

Page 124: ......

Page 125: ......

Page 126: ......

Page 127: ......

Page 128: ......

Page 129: ......

Page 130: ......

Page 131: ......

Page 132: ......

Page 133: ......

Page 134: ......

Page 135: ......

Page 136: ......

Page 137: ......

Page 138: ......

Page 139: ......

Page 140: ......

Page 141: ......

Page 142: ......

Page 143: ......

Page 144: ......

Page 145: ......

Page 146: ......

Page 147: ......

Page 148: ......

Page 149: ......

Page 150: ......

Page 151: ......

Page 152: ......

Page 153: ......

Page 154: ......

Page 155: ......

Page 156: ......

Page 157: ......

Page 158: ......

Page 159: ......

Page 160: ......

Page 161: ......

Page 162: ......

Page 163: ......

Page 164: ......

Page 165: ......

Page 166: ......

Page 167: ......

Page 168: ......

Page 169: ......

Page 170: ......

Page 171: ......

Page 172: ......

Page 173: ......

Page 174: ......

Page 175: ......

Page 176: ......

Page 177: ......

Page 178: ......

Page 179: ......

Page 180: ......

Page 181: ......

Page 182: ......

Page 183: ......

Page 184: ......

Page 185: ......

Page 186: ......

Page 187: ......

Page 188: ......

Page 189: ......

Page 190: ......

Page 191: ......

Page 192: ......

Page 193: ......

Page 194: ......

Page 195: ......

Page 196: ......

Page 197: ......

Page 198: ......

Page 199: ......

Page 200: ......

Page 201: ......

Page 202: ......

Page 203: ......

Page 204: ......

Page 205: ......

Page 206: ......

Page 207: ......

Page 208: ......

Page 209: ......

Page 210: ......

Page 211: ......

Page 212: ......

Page 213: ......

Page 214: ......

Page 215: ......

Page 216: ......

Page 217: ......

Page 218: ......

Page 219: ......

Page 220: ......

Page 221: ......

Page 222: ......

Page 223: ......

Page 224: ......

Page 225: ......

Page 226: ......

Page 227: ......

Page 228: ......

Page 229: ......

Page 230: ......

Page 231: ......

Page 232: ......

Page 233: ......

Page 234: ......

Page 235: ......

Page 236: ......

Page 237: ......

Page 238: ......

Page 239: ......

Page 240: ......

Page 241: ......

Page 242: ......

Page 243: ......

Page 244: ......

Page 245: ......

Page 246: ......

Page 247: ......

Page 248: ......

Page 249: ......

Page 250: ......

Page 251: ......

Page 252: ......

Page 253: ......

Page 254: ......

Page 255: ......

Page 256: ......

Page 257: ......

Page 258: ......

Page 259: ......

Page 260: ......

Page 261: ......

Page 262: ......

Page 263: ......

Page 264: ......

Page 265: ......

Page 266: ......

Page 267: ......

Page 268: ......

Page 269: ......

Page 270: ......

Page 271: ......

Page 272: ......

Page 273: ......

Page 274: ......

Page 275: ......

Page 276: ......

Page 277: ......

Page 278: ......

Page 279: ......

Page 280: ......

Page 281: ......

Page 282: ......

Page 283: ......

Page 284: ......

Page 285: ......

Page 286: ......

Page 287: ......

Page 288: ......

Page 289: ......

Page 290: ......

Page 291: ......

Page 292: ......

Page 293: ......

Page 294: ......

Page 295: ......

Page 296: ......

Page 297: ......

Page 298: ......

Page 299: ......

Page 300: ...RACAL RA6790 GM ALIGNMENT AND TUNING MANUAL From Maxhdrm2 comcast net February 2003...

Page 301: ...r aligning the Receiver assemblies The alignment procedures require that external power be connected to the Receiver the Receiver power switch turned on and that the mode bandwidth AGC and frequency b...

Page 302: ...nput Attenuation 20 dB Scan Time 20 Msec Div Log Ref Level 0 dBm 10 dB Log Video Filter 10 kHz Scan Mode Internal Scan Trigger Auto 5 Set the Marker to a frequency of 30 MHz 6 Observe trace and adjust...

Page 303: ...Tuning Manual Page 4 of 20 45 MHz RELATIVE LEVEL 20dB 0 5MHz 40 453MHz EACH GRATICULE 10 MHz Figure 3 2 Alignment Waveforms 45 MHz RELATIVE LEVEL 20dB EACH GRATICULE lOdB EACH GRATICULE 10 MHz Figure...

Page 304: ...requency to 40 455 MHz Adjust L3 for notch 8 Check filter passband level from 45 to 70 MHz Ensure that this level is greater than 9 dBm 9 Check relative level at 41 MHz compared to level at 45 MHz If...

Page 305: ...ent and reconnect PI of cable A2W1 to J5 d Second Mixer Circuit Card Assembly A3 The second mixer assembly A3 is located in the bottom portion of the Receiver The RF signal generator and RF millivoltm...

Page 306: ...10 dB Scan Width Div 20 kHz Scan Time 0 1 Second Log Ref 0 dB 10 dB Log Video Filter 100 Hz 3 Remove a filter and connect a link between the filter input and output sockets Select this filter positio...

Page 307: ...CW rotation Select each filter position via the MODE panel Observe the trace on the spectrum analyzer for each filter selected It may be necessary to adjust the IF gain control to avoid distortion of...

Page 308: ...ed the A5 assembly is installed in the top portion of the Receiver towards the rear The test equipment required to align the A5 module includes the spectrum analyzer AM FM signal generator digital mul...

Page 309: ...ined delay 1 2 kHz 600 600 1500 1500 Defined delay 1 2 kHz 600 600 1500 1500 Defined delay 3 24 kHz 1620 1620 2150 2150 Defined delay 6 8 kHz 3400 3400 6800 6800 Defined delay 16 0 kHz 8000 8000 16000...

Page 310: ...trum analyzer While observing the spectrum analyzer trace adjust LI and L2 to obtain the bandpass waveform shown for Step 12 of the L4 adjustment procedures in Paragraph e If a double peak is obtained...

Page 311: ...Circuit Card Assembly A8 This circuit card assembly is located in the bottom portion of the Receiver The test equipment required to align this assembly includes the 50 ohm adapter digital multimeter R...

Page 312: ...ver front panel BFO and digital frequency counter indications Digital frequency counter should track 455 000 Hz above the Receiver BFO indicated frequency Also observe the digital multimeter indicatio...

Page 313: ...ing lamps are on 5 Make sure that the FAULT indicator is off If this indicator is on refer to Receiver manual 31R2 2URR 251 for information on clearing the fault 6 Perform BITE check as outlined in Re...

Page 314: ...signal generator level to 10 dBm 70 millivolts and set IF GAIN control to maximum 7 Decrease the RF signal generator output to restore the 1 mW reference and note the RF signal generator level This s...

Page 315: ...sconnect digital frequency counter and reconnect W6P2 to J5 on the A4 module TABLE 3 2 BFO TEST RESULTS BFO INDICATOR BFO FREQUENCY 455 000 kHz 456 110 0 00 kHz 453 890 457 220 1 11 1 11 452 780 458 3...

Page 316: ...ms Measure distortion Distortion should be less than 2 5 Connect phone output from Receiver front panel to distortion analyzer and adjust phone output for 10 mW into 600 ohms Measure distortion Distor...

Page 317: ...TOR connector and connect it to L S OUT loudspeaker 6 Note that power meter reads at least 1 watt 7 Disconnect power meter from L S OUT and connect it to the PHONES jack on the front panel 8 Note that...

Page 318: ...0 dBm output level All modulation off 5 Set the spectrum analyzer as follows Frequency 8 kHz Bandwidth 10 Hz Sweepwidth 100 Hz div Scan Time 2 secs div Input Attenuator 10 dBm IF Attenuator 20 dB 6 Ad...

Page 319: ...ference Voltage 0 dB Bandwidth 100 Hz Phase Reference A Delay Mode CW Frequency Step 50 Hz Delay Function Absolute 7 Adjust the Receiver manual IF gain control for a 0 dB reading on the network analyz...

Reviews:

No comments

Related manuals for RA6790/GM

Harman Kardon 930 Technical Manual preview
930
Brand: Harman Kardon Pages: 15
Majestic 90 Instructions For Care And Operation preview
90
Brand: Majestic Pages: 9
Ramsey Electronics FR220 Instruction Manual preview
FR220
Brand: Ramsey Electronics Pages: 28
Danfoss RZ1 User Manual preview
RZ1
Brand: Danfoss Pages: 12
Danfoss RZ1 Installation Manual preview
RZ1
Brand: Danfoss Pages: 16
R&S EM510 Manual preview
EM510
Brand: R&S Pages: 183
JAMO R-300 Product Manual preview
R-300
Brand: JAMO Pages: 4
Parallel Audio M4000 Operation Manual preview
M4000
Brand: Parallel Audio Pages: 8
B&K CT610 Quick Reference Manual preview
CT610
Brand: B&K Pages: 12
Panasonic CS-HZ25UKE User Manual preview
CS-HZ25UKE
Brand: Panasonic Pages: 24
Panasonic CQVW100U - Car Audio - In-Dash DVD Receiver Service Manual preview
CQVW100U - Car Audio - In-Dash DVD Receiver
Brand: Panasonic Pages: 47
Panasonic CZ-RWSC3 Installation Instructions Manual preview
CZ-RWSC3
Brand: Panasonic Pages: 7
Dish Network Home Network Installation Instructions Manual preview
Home Network
Brand: Dish Network Pages: 18
Panasonic SH-FX60 - Wireless Audio Delivery System Operating Instructions preview
SH-FX60 - Wireless Audio Delivery System
Brand: Panasonic Pages: 4
Panasonic PressIT TY-SB01WP Operating Instructions Manual preview
PressIT TY-SB01WP
Brand: Panasonic Pages: 25
Panasonic TU-DST52F User Manual preview
TU-DST52F
Brand: Panasonic Pages: 44
iDirect 3000 series Installation And Safety Manual preview
3000 series
Brand: iDirect Pages: 82
PAG 6001 Quick Start Manual preview
6001
Brand: PAG Pages: 2

Brands by name

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Popular brands

ABB AEG Acer Asus Beko Black & Decker Bosch Brother Candy Canon Cisco Craftsman D-Link DeWalt Dell Electrolux Emerson Epson Frigidaire Fujitsu GE HP Haier Hitachi Honeywell Huawei Husqvarna JVC Kenmore Kenwood KitchenAid LG Lenovo Makita Miele Mitsubishi Electric Motorola NEC Nikon Nokia Panasonic Philips Pioneer Samsung Sanyo Sharp Siemens Sony TP-Link Toshiba Whirlpool Xiaomi Yamaha Zanussi Load more brands