Trilithic

DCVF-5

Automated Preselector Filter

DCVF-5

DCVF-5 Automated Preselector Filter is designed for quick, accurate and repeatable measurements of composite triple beat, cross modulation and other spurious signals.

  • Automated forward and return preselection
  • GPIB and front panel user control
  • Switchable T7 - T13 channel filters
  • Tunable from 55 to 880 MHz
  • High-selectivity shape factor
  • Integrated 20 dB preamplifier
  • Switchable auxiliary ports for special requirements

Automatically block unneeded signals for fast, accurate network performance testing.

The Trilithic DCVF-5 Automated Preselector Filter is designed for quick, accurate and repeatable measurements of composite triple beat, cross modulation and other spurious signals that can affect CATV system network performance.

Placed between a test instrument and the CATV system test point, the DCVF-5  blocks all unneeded signals, passing only the carrier or spectrum to be analyzed to the instrument's input. By eliminating input overload, the filter can improve an instrument's reliable measurement range as much as 30 dB.

The DCVF-5 can also be used to extend the range and accuracy of fiber optic measurements. Custom filter designs are available for specialized testing requirements.

Specifications

Mechanical

User Interface GPIB and Manual Entry
Input Impedance 75 Ohms
Output Impedance 75 Ohms
RF Connectors BNC Female
Frequency Range 8.75 to 880 MHz
AUX Ports Bandwidth DC – 1,000 MHz (Internal Amplifier Bypassed)
Internal Thru Port Bandiwdth DC – 1,000 MHz (Internal Amplifier Bypassed)
Return Loss 14 dB Minimum to 880 MHz
Insertion Loss 11.5 dB Maximum @ 880 MHz
Fixed Bandpass Filters T-7 through T-13 Channels
Variable Bandpass Filters 55 through 880 MHz in 4 Tunable Sections
Filter Shape Factor 30:3 dB = 2.2:1; 50:3 dB = 3.5:1
Selectivity 6 MHz Nominal
RF Input Power 0.5 Watts Average
Path Switch Type Electro-Mechanical
Path Switching Time Less than 100 Milliseconds after GPIB Command
Path Switch Life Greater than 1 Million Operations
Fixed Filter Tuning Switched Port Selection
Variable Filter Tuning Stepper Motor with Optical Encoder
Tuning Acquisition Time Typically Under 20 Seconds
Post Amplifier Gain 20 dB @ 50-600 MHz; 17dB @ 750 MHz; 16 dB @ 1,000 Mhz
Post Amplifier Passband 50 MHz – 1,000 MHz
Post Amplifier NF 5 dB
AC Power Input 95 – 240 VAC, 50/60 Hz, Single Phase
Power Consumption 100 Watts
Dimensions 17”W x 10.5”H x 20”D (Standard 19” Rack Mounting)
Weight 45 Lbx. (20 Kg.)
Physical The front panel is a black anodized finish on brushed aluminum. The remaining enclosure is straw chromate finish on aluminum

 

Related Items

  • VF-4 Portable Pre-Selector

    Product Image

    High selectivity tunable bandpass filter. 55-880 MHz, in 4 bands. Installed in a hard case.

    Replacement F and BNC connectors included with all portable VF Series filters. A rack mounted version of this pre-selector is also available. Contact the factory for more information 800-344-2412.

  • VF-5 Portable Pre-Selector

    Product Image

    VF-4 tunable bandpass filter plus T7 through T12 channel filters. Installed in a hard case.

    Replacement F and BNC connectors included with all portable VF Series filters. A rack mounted version of this pre-selector is also available. Contact the factory for more information 800-344-2412.

Warranty

Repairs

All repairs carry a 90-day warranty against defects in replacement parts and repair workmanship.

Products

All Trilithic products are warranted against defects in materials or workmanship for a minimum of one year after shipment.

Trilithic's obligation under this warranty is limited to the repair or replacement of the product after being returned to our factory, and Trilithic determining the product be indeed defective.

This is Trilithic's sole warranty and is given in lieu of all other warranties, expressed or implied, including warranties of merchantability or fitness for a particular purpose and sets forth the buyers sole remedy.

The following products carry a Manufacturers One Year Warranty

8821Q, 8821Q-R & 8853Q Rotary & Benchtop Attenuators TFS-3200 Series
APSS-1B TFS-201 TFS-FS1
DCVF-5 TFS-290 Series TFS-FS1K500 Series
Impedance Matching Pads TFS-301 TLB-60
I-Stop TFS-401 Tunable Filters
Programmable RF Switches TFS-2000 Series VF-4 & VF-5

The following products carry a Manufacturers Two Year Warranty

860 DSP & 860 DSPi 9581 SST R3 & 9581 SST R4 RSVP²
860 DSPh & Input Expander 9581 TPX Seeker Lite²
860 DSPr CT-2/ CT-3 Seeker
8300 FST Model Two Seeker MCA
8310 RSA Model Three Seeker BB-2

The following products carry a Dell Three Year Warranty

All Specially Configured Dell PowerEdge 2U Rack Mount Server products are warranted against defects in materials or workmanship for a minimum of three years after shipment. Dell provides next business day, parts and labor, on-site response for the following Trilithic products.

ADIA Integrated Server Package LAW Server Package
Guardian II Integrated Server Package Trilithic Data Manager (TDM) Integrated Server Package

 

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