2.5 Operation
2.5.1 Installing and Operating the 2005
1. Check that SW5, SW6, SW7 are set to the desired positions (Figures 2.1 and 2.2).
2. If using the receiver LNB voltage to power the 2005, be sure +14 to +20 VDC is present on the RF OUT
center conductor (Figure 2.2).
3. If using the wall power supply, connect one end to the 2005 and the other end to 100-240 ±10% VAC,
47-63 Hz (Figure 2.2)
4. Connect a -10dBm, max (LOW GAIN), or -30dBm, max (HI GAIN) signal to IF IN, J1 (Figure 2.2)
5. Connect the RF OUT, J2, to the receiver under test (Figure 2.2).
6. Set BCD switches SW1 to SW4 to the desired L-band frequency (Figure 2.1).
7. Be sure DS1 (green, DC Power) is on and DS2 (red, ALARM) is off (Figure 2.1).
2.5.2 Frequency Setting, SW1 to SW4
The frequency is selected by setting the BCD switches (SW1 to SW4) on the front panel to the desired frequency
using a small blade screwdriver. The frequency displayed on the BCD switches is the desired output frequency
with 70 or 140 MHz IF center frequency input and the low or high side LO as selected by SW5 and SW6 (see
Figure 2.2). There is no muting of the output carrier during frequency selection. If the switches are set to an invalid
frequency, alarm LED DS2 will light.
2.5.3 LO and IF for the 2005-02P4
The 2005-02 operates over it’s full 950 to 2050 MHz range with high side LO and 70 MHz input. Normally,
LNB’s use high side LO for C-band and low side LO for Ku-band. Also, note that there will be a spectrum
inversion of the input IF modulation with the high side LO. Although the 2005-02 operates over it’s full 950 to
2050 MHz range with high side LO and 70 MHz input only, it can be set for low side LO and 140 MHz operation
over a limited range as Table 2.1 shows. The PLL will alarm if you try to operate the 2005-02 outside the
allowable frequency range shown.
2.5.4 LO and IF for the 2005-03P4
The 2005-03 operates over it’s full 950 to 1450 MHz range with high side or low side LO and 70 or 140 MHz
input as shown in Table 2.1. Normally, LNB’s use high side LO for C-band and low side LO for Ku-band. Also,
note that there will be a spectrum inversion of the input IF modulation with the high side LO.
TABLE 2.1 2005
2.1
2005 UPC
CONVERTER
UP
CONVERTER FREQUEENCY
FREQU
ENCY INFORMATION
2 0 0 5 - 0 2
2 0 0 5 - 0 2
2 0 0 5 - 0 3
2 0 0 5 - 0 3
L O - S i d e
IF (MHz)
LO Range (MHz) Output Range (MHz) LO Range (MHz) Output Range (MHz)
HIGH
70
1020-2120
950-2050
1020-1520
950-1450
LOW
70
1020-1980
1090-2050
880-1380
950-1450
HIGH
140
1090-2120
950-1980
1090-1590
950-1450
LOW
140
1020-1910
1160-2050
810-1310
950-1450
2.5.5 Selecting High/Low Side LO, 70/140 MHz IF, and Gain
To select high- or low-side LO and 70 or 140 MHz IF Input set SW5 and SW6 on the front panel (see Figure 2.1)
to the desired position. The gain of the 2005 can be selected for -10 dB (HI gain, -30 dBm maximum IF input) or
-30 dB (LOW gain, -10 dBm maximum IF input) with SW7 on the rear panel (see Figure 2.2).
2005-02/03 Manual, Rev. J
Page 7
08/14/2019
