ELCA XPR-2G Manual Download Page 23

 

                                                                                                                          

XPT/R2G                                     

 Pag. 

23 

 

 

 
 

 

N° 

 

Board name/ 

Component 

 

FUNCTION 

 

 

DESCRIPTION 

 

SINTG 

Mod. adj 

Adj. for 75kHz dF with right in level 

DMPX 

Pilot level 

Adj. for 7.5kHz  dF in Stereo mode 

DMPX 

Pilot frequency 

Adj. for 19.000kHz 

4

 

MBPN 

L / R  balance 

Adjust for right balance at 1kHz 

AL400 

Ex Battery fuse 

3A T 

6

 

AL400 

.+ 15Vdc 

Adjust to 15 Vdc on J1 connector pin 5 

AL400 

Temp. measure 

Adjust for right value displayed 

ACC4G 

Power offset 

Adj for 0W out with 0W setted  

ACC4G 

Power gain 

Adj  for 4W out with 4W setted  

10 

ACC4G 

BPF. 

Adj on the out frequency by network-analyzer 

11

 

A4GP 

RF Ampl. fuse 

1.6A T 

12

 

A4GP 

Max V  rf ampl. 

Adj.  for 10Vdc on the MGF0906 drain (rf ampl.) 

13

 

A4GP 

Rf ampl drive curr  Adj. for 0.2A on the MGF0905 drain 

14

 

PW SUPPL. 

 

Main pw. suppl. 

Adj. for 24Vdc out 

15

 

A4GP 

Rf ampl. curr. 

Adj. for 0.4A on the MGF0906 drain 

16

 

MBPN 

In.stereo level 

Adjust for 75kHz dF in stereo 

17

 

MBPN 

Stereo 

Adjust for minimum st. separation at 1kHz 

18

 

MBPN 

Stereo 

Adjust for minimum st. separation at 15kHz 

19 

DLCD 

Progr. Load. 

Run / Boot 

20

 

SINTG 

Local Osc. out 

Ver. 10dBm out 

21

 

DLCD 

Reset 

Press for master reset 

22

 

DLCD 

CLK battery 

3V3 litium 

23

 

DLCD 

Password 

ON – OFF 

24 

MBPN 

Alarms out 

Closed or open output alarm contacts output 

25 

AGC 

Insertion 

ON / OFF 

 
 
 
 

Summary of Contents for XPR-2G

Page 1: ...XPT R2G Pag 1 XPT R 2G studio transmitter link EL CA Electronic Systems Srl via Adda 5 21057 Olgiate O VA ITALY...

Page 2: ...ower 0 to 4 5W Power resolution setting 0 1W Power control limit setting 1 to 4 5W Power control stability 0 2dB Harmonics emission 60dBc Spurious emission 60dBc Carrier reduction power carrier enable...

Page 3: ...noise referred at deviation of 75kHz 70dB Suppression of 38KHz 70dB Spurious suppression outside band in according to ETS 300 384 Pilot reference for RDS encoder 19 Khz out 1Vpp 2 5 SCA CHARACTERISTIC...

Page 4: ...range 40 to 50 C 2 9 MECHANICAL SPECIFICATION 19 rackmount 485x135x530mm Weight 6kg 2 10 OPTIONS Option A Stereo generator Option B Automatic Audio Level Control Option C Remote Control by GSM Option...

Page 5: ...Squelch threshold 40 100dBm Squelch threshold step 1dB Max rf input signal 20dBm 3 2 SELECTIVITY RF input selectivity 60 dB for 140 Mhz of input frequency 3 dB IF band width static 100kHz 40 dB IF ban...

Page 6: ...L or R decoded and de emph CCIR Vi 40 dBm 65dB Harmonic distortion L or R decoded and de emph Vi 40 dBm 0 2 Connectors XLR 3 5 ALARMS ALARMS OUT one reed contact for carrier detect internal power supp...

Page 7: ...XPT R2G Pag 7 REMOTE CONTROL TO ASK BY GSM TO KNOW Field intensity Frequency Internal voltage supply External battery level Alarms Modulation fine tuning offset control command Squelch control command...

Page 8: ...n keeping this way the modulation very close to the maximum allowed value The corrections take place at very long periods of time the board does not perform the audio compressing limiting functions bu...

Page 9: ...ainst damages and drifts The oscillator directly modulated by the composite signal covers the whole assigned band and synthesized in steps of 50 or 100kHz The reference frequency is obtained by a 10MH...

Page 10: ...ODER additional board allowing the internal encoding of the stereophonic signal b AGC additional board allowing a frequency modulation control c REMOTE CONTROL software for the GSM connection d RF INS...

Page 11: ...is 20Mhz with reference to the tuned frequency and the attenuation of the image frequency is greater than 55dB The next stage is composed of a broadband amplifier with low noise figure NF 3dB and high...

Page 12: ...t everything must be eliminated because it would be a spurious signal in case of retransmission A elliptical filter with 100kHz cut frequency removes the spurious components of the demodulated signal...

Page 13: ...or an oscilloscope for the audio output The rear panel also includes a DB9 connector with alarm signals carrier detect fault etc which can drive a diversity system The receiver can also be powered thr...

Page 14: ...ilter so as to work also when other transmitters working in the other frequency band are near Within the assigned band such filter needs to be tuned on the frequency through a network or spectrum anal...

Page 15: ...tenna Intermodulation with other transmitters is reduced for incresed this last parameter can be putted an insulator option D before the output filter Within the assigned band such filter needs to be...

Page 16: ...XPT R2G Pag 16...

Page 17: ...t Pin 1 GND Pin 2 L Pin 3 L 5 RIGHT input Pin 1 GND Pin 2 R Pin 3 R 6 External MPX input 0 12 dBm 7 L R MPX SCA1 SCA2 adjustment 8 Mono input impedence choice 600 or 10k 9 Pre emph value choice 50 or...

Page 18: ...RS485 PIN NUMBER DB9 9 NC 1 NC 2 Input RS485 3 Input RS485 4 NC 5 GND 6 NC 7 NC 8 NC 16 COM3A RS485 PIN NUMBER DB9 9 NC 1 NC 2 RX 3 TX 4 NC 5 GND 6 NC 7 NC 8 NC 17 COM2 RS232 PIN NUMBER DB9 9 NC 1 ALL...

Page 19: ...XPT R2G Pag 19 22 LF Monitor 23 RS232 COM1 24 Data ENTER key 25 REMOTE connection...

Page 20: ...IGHT output Pin 1 GND Pin 2 R Pin 3 R 4 MPX out 5 DE EMPHASIS on off 6 De emphasis value 75 or 50 microsec 7 Output audio level setting 0 4 1 6 12 dBm 1 NC 2 NC 3 NC 4 ALARM1 out closed or open output...

Page 21: ...NC 2 RX 3 TX 4 NC 5 GND 6 NC 7 NC 8 NC 11 COM2 RS232 PIN NUMBER DB9 9 NC 1 ALL1 2 ALL2 3 GND 4 Field intensity 5 NC 6 12V 7 15V 8 Modulation meter 12 AUX IN OUT For analog remote monitoring PIN NUMBE...

Page 22: ...XPT R2G Pag 22 XPT 2G INTERNAL ADJUSTMENT AND SETTING...

Page 23: ...dj on the out frequency by network analyzer 11 A4GP RF Ampl fuse 1 6A T 12 A4GP Max V rf ampl Adj for 10Vdc on the MGF0906 drain rf ampl 13 A4GP Rf ampl drive curr Adj for 0 2A on the MGF0905 drain 14...

Page 24: ...XPT R2G Pag 24 XPR 2G INTERNAL ADJUSTMENT AND SETTING...

Page 25: ...as Adj for 90dBm RF input signal 6 RX400 Field meas Adj for 50dBm RF input signal 7 AL400 Ex Batt Fuse 2A T 8 AL400 15 Vdc Adj for 15Vdc on the J1 connector on pin 5 9 RF BPF RF filter Adj on the inpu...

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