Back to Cross index   REQUEST PRODUCT INFORMATION!
 

2089-24A Downconverter, 2.0-2.4 GHz

  
The Series 2089-24A Downconverter converts 2.0 - 2.4 GHz IF signal to a 70 MHz IF with no spectrum inversion, low group delay, and flat frequency response. The 2.0 - 2.4 GHz input is mixed with synthesized local oscillator (LO) signals, first to 600 MHz and finally to 70 MHz. The frequency is selected using four front panel BCD switches, and is selectable in 1 MHz increments. The reference oscillator is a 25 MHz internal oscillator. Front panel LEDs light when DC power is applied (green) or when a PLL alarm occurs (red). Gain is selectable to be either manually adjustable (MGC) or automatically adjusted (AGC). Front panel test points allow for monitoring the AGC voltage (and corresponding AGC gain) when in AGC mode, and a front panel potentiometer allows for gain adjustment when in MGC mode. The MGC gain is adjustable from 20 to 50 dB. Connectors are Type N female for the RF input and BNC female for the IF output. A terminal strip is mounted on the rear panel and provides a closure to ground when the PLL is out of lock. The 2089-24A Downconverter is housed in a 1 3/4” X 19“ X 14“ deep rack mount chassis.

 


 2089-24A Downconverter Front

Equipment Specifications*
 

Input Characteristics
Impedance/RL
Frequency
Noise Figure
Level Range
Input 1 dB compression		 50 ohms/10dB
2.0-2.4 GHz
15 dB, max gain
-30 to -70 dBm
-20 dBm
Output Characteristics  
Impedance/RL
Frequency
Level, max linear
Output 1 dB compression		 75 ohms/15dB
70 ± 10 MHz
-20 dBm
-5 dBm
Channel Characteristics
Gain
AGC Reaction Time
Image Rejection
Spurious Response
Frequency Response		 10 to 50 dB (auto adjusted in AGC, manually adjustable in MGC)
~2 sec, 10 to 50 dB gain change on step input
> 45 dB, min; > 50 dB typ
< -40 dBC in band
±1.5dB, entire band; ±0.5dB, any 10 MHz incr.
Synthesizer Characteristics
Frequency Accuracy
Phase Noise (dBC/Hz)
 		 ±25 kHz max over temp
<= -75, 10 kHz; <= -90, 100 kHz; <=-100, 1 MHz
Controls, Indicators
Frequency Select
Gain Select
Gain Adjust
DC Power
PLL Alarm		 BCD switches select input left freq in 1MHz steps
Front panel slide switch selects MGC or AGC
Front panel potentiometer adjusts gain in MGC mode
Green LED
Red LED
Other
RF Connectors
IF Connectors
Size
Power		 type N, female
BNC, female
19 inch standard chassis, 1.75"H X 14.0"D
90-260 VAC, 47-63 Hz, 30W max

*+10 to +40 degrees C; Specifications subject to change without notice