RXRL-NV/2 Technical and Maintenance Manual
R.V.R. Elettronica S.r.l. (Bo)
Pag. 36
to reduce excessively the amplitude of the 10.7 MHz IF signal.
5.5 CALIBRATION OF THE MUTING CARD
To carry out this procedure, configure the unit as detailed in
SETUP 4 (Fig.8).
1)
Inject a -83 dBm signal into the R.F. input of the receiver.
2)
Adjust potentiometer P2, situated on the 70 MHz IF card, to its
halfway position.
3)
Adjust trimmer R2, situated on the MUTING card, until the receiver
disables the audio signal.
5.6 CALIBRATION OF THE AUDIO PROCESS CARD
To carry out this procedure, configure the unit as detailed in
SETUP 3 (Fig.7).
1)
Check that trimmers R41 and R42, corresponding to the MONO and MPX
outputs, are at maximum.
2)
Check that jumper JP1 is in the correct position for the desired
de-emphasis (position A = 50µs European version; position B = 75µs
American version).
3)
Inject a signal with the carrier at the receiver’s operating
frequency and modulated with 400 Hz at ±100 KHz deviation.
4)
Adjust R8 to obtain a reading on the audio analyzer of +13dBm for
the MONO input.
5)
Now inject a 10 KHz signal with a deviation of 100 KHz.
Adjust R12 for a reading of 2.5 dBm for 50µs de-emphasis (-1dBm for
75µs de-emphasis).
6)
Inject a carrier at the receiver’s operating frequency, modulated
by a 400 Hz tone with a deviation of ±100 KHz.
7)
Check that the signal level is still +13 dBm and if not, adjust R8.
SETUP 4 / FIG. 8
Summary of Contents for RXRL-NV/2
Page 19: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 19 FIG 1...
Page 21: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 21 FIG 2...
Page 23: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 23 FIG 3...
Page 24: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 24 FIG 4...
Page 64: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 64 FIG 1...
Page 66: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 66 FIG 2...
Page 68: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 68 FIG 3...
Page 69: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 69 FIG 4...
Page 95: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 95...
Page 97: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 97...
Page 99: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 99...
Page 101: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 101...
Page 103: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 103...
Page 104: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 104...
Page 105: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 105...
Page 108: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 108...
Page 109: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 109...
Page 110: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 110...
Page 112: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 112...
Page 115: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 115...
Page 117: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 117...
Page 120: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 120...
Page 121: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 121...
Page 123: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 123...
Page 125: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 125...
Page 129: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 129...
Page 131: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 131...
Page 134: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 134...
Page 136: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 136...
Page 139: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 139...
Page 141: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 141...
Page 145: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 145...
Page 147: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 147...
Page 150: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 150...
Page 152: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 152...
Page 154: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 154...
Page 156: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 156...
Page 158: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 158...
Page 160: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 160...
Page 162: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 162...
Page 164: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 164...
Page 166: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 166...
Page 168: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 168...
Page 170: ...RXRL NV 2 Technical and Maintenance Manual R V R Elettronica S r l Bo Pag 170...
Page 172: ......
Page 174: ...RXRL NV 2 ii Appendix Rev 0 3 11 04 03 Pagina lasciata intenzionalmente in bianco...
Page 175: ...RXRL NV 2 1 2 BLOCK DIAGRAM Rev 0 1 12 09 02...
Page 176: ...RXRL NV 2 2 2 BLOCK DIAGRAM Rev 0 1 12 09 02 Pagina lasciata intenzionalmente in bianco...
Page 178: ...RXRL NV 2 2 10 CPU NV Technical Appendix Rev 0 1 02 09 02...
Page 181: ...RXRL NV 2 CPU NV 5 10 Appendice Tecnica Rev 0 1 02 09 02...
Page 187: ...RXRL NV 2 CSSINTPLLRX 1 4 Technical Appendix Rev 0 1 02 09 02...
Page 191: ...RXRL NV 2 CSTCX002 1 4 Technical Appendix Rev 0 1 02 09 02...
Page 196: ...RXRL NV 2 2 2 CSFIL70SAW01 Rev 0 1 12 09 02...
Page 197: ...RXRL NV 2 FLTPB7E 1 4 Appendice Tecnica Rev 0 1 04 03 03...
Page 201: ...RXRL NV 2 CSDECRXLCD01 1 4 Appendice Tecnica Rev 0 1 04 03 03...