Multi-Channel Extender

Description

Model: ELE-VFA-EXT

The Multi-Channel Extender (ELE-VFA-EXT) is designed to combine multiple ELE-VFA Vector Field Analyzers to provide up to 12 simultaneous, phase coherent test channels plus one common reference signal of phase coherent RF data. The Multi-Channel Extender distributes a common IF reference signal, LO signal and 10 MHz reference signals to each connected VFA.

Having a depth of only 8” and designed for rear rack installation, the compact ELE-VFA-EXT has front panel connections making for easy cabling to the Vector Field Analyzer.

Features
- Combines VFAs to provide parallel high-speed aquisition channels
- Easy cabling and connections
- Compact design - no additional rack space needed
- No multiplexers required
Cabling with Multiple VFAs

Specifications

LO Signal
Frequency Range	0.19–20 GHz
Maximum Input Power	+10 dBm (nominal)
Path Gain¹	1 ± 3.5 dB
Nominal Impedance	50 Ω
Number of Ports	1 input and 4 outputs (3.5 mm Female)
Reference IF Signal
Frequency Range	10–50 GHz
Maximum Input Power	-10 dBm (nominal)
Path Gain¹	0 ± 2 dB
Nominal Impedance	50 Ω
Number of Ports	1 input and 4 outputs (3.5 mm Female)
10 MHz Time Base
Frequency Range	1–200 MHz
Maximum Input Power	+10 dBm (nominal)
Insertion Loss¹	7 dB Max
Nominal Impedance	50 Ω
Number of Ports	1 input and 4 outputs (BNC)
Pulse Trigger
Frequency	50 MHz Max
TTL Input Low Level	0 V (typ), 0.5 V (max)
TTL Input High Level	2.4 V (typ), 2.2 V (min), 5 V (max)
TTL Output Low Level	0.25 V (typ), 0.5 V (max), RL = 50 Ω
TTL Output High Level	2.4 V (typ), 2.2 V (min), RL = 50 Ω
Nominal Impedance¹	50 Ω
Number of Ports	1 input and 4 outputs (BNC)
Supported RF cable length to/from VFA (@ 0.6 dB/ft cable loss at 20 GHz)	0.91 m (3 ft)
Size (H x W x D)	2U Rack-Mountable
Main Chassis	89 x 483 x 209 mm (3.5 x 19 x 8.2 in.)
With Panel Connectors	89 x 483 x 237 mm (3.5 x 19 x 9.3 in.)
Weight	6 kg (13 lb) Max
Environmental	0° to 40° C
AC Power	100–240 V AC, 50/60 Hz, 100 W Max

¹ Input port to any output port with all other outputs terminated.
² Input impedance can be changed to 1 kΩ by setting an internal toggle switch.

Applications
Standard Components
- Multi-Channel Extender Unit
- Power Supply Cord
- RF Terminations
- Installation and Operation Manual

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Multi-Channel Extender

Description

Features

Cabling with Multiple VFAs

Related Products

Vector Field Analyzer™

Auxiliary Controller

Vector Measurement Controller

VFA Adapter Panel

Atlanta

Los Angeles

NSI-MI UK

AMTA