Radio Design Labs FP-VDA4
Video Distribution Amplifier


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List Price: $276.04
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Radio Design Labs' FP-VDA4 is the ideal choice in many applications where video signals need to be distributed. Video input and output connections are made on the top panel BNC jacks. Power connections are made using either the full-size barrier block terminals or a dc power jack located in one end panel. A second dc power jack is provided on the other end panel for connecting additional FLAT-PAK modules.

The FP-VDA4 has two jacks in the bridging input stage. One jack is for the input signal; the other is a loop-through output of the source signal. If 75 Ohms termination of the input signal is required, the terminator (provided) is plugged onto the Loop Out jack. Gain is user adjustable from the top panel. The gain potentiometer allows adjustment from unity to +6 dB. Four source-terminated outputs are provided through the BNC output jacks. Unused outputs need not be terminated.

NOTE: Radio Design Labs' PS-24AS power supply is NOT included but is required in order to power this product.  Please see the "Accessories" tab or click here for more information on the PS-24AS power supply.


  • Video Distribution with Four Outputs
  • Adjustable Gain
  • Input LOOP OUT Jack
  • Wide Bandwidth – Flat to 10 MHz
  • NTSC or PAL Operation
  • Ultra-Compact All Metal Construction
  • Convenience of RDL® FLAT-PAKs™


  • Input Impedance: 1 kOhm (Bridging 75 Ohm Line)
  • Gain: Unity to +6 dB (adjustable)
  • Load Impedance: 75 Ohm
  • Outputs (5): 1 LOOP OUT from Input Signal; 4 amplified outputs
  • Output Level: 1 V p-p (into 75 Ohm)
  • Frequency Response: 10 Hz to 10 MHz (+/- 0.2 dB)
  • Noise: < -75 dB (below 1 V p-p)
  • Output Isolation: > 45 dB
  • Differential Gain: 0.1%
  • Differential Phase: 0.1 degree (measured at 10% and 90% APL)
  • Connector Type: BNC
  • Power Requirement: GROUND-REFERENCED, 24 Vdc @ 60 mA
  • Dimensions: 1.34" H x 3.25" W x 4.43" L (3.40 x 8.26 x 11.25 cm)
24 VDC 500mA Switching Power SupplyRadio Design Labs PS-24AS 24 VDC 500mA Switching Power Supply

Radio Design Labs' PS-24AS is a 24 Vdc switching power supply with a North American AC plug.  500 mA, dc plug.Specifications: Input: 100 to 240 VACOutput: 24 Vdc, 500 mA (UL, CSA)Dimensions: 1.65" x 2.75" x 1.45" (4.2 x 7 x 3.7 ...

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The PM-1T is a tray that mounts above a projector using a standard (1.5" I.D.) round projector pole or any smaller round or rectangular pole. The tray accommodates up to two FP-PA20 Audio Power Amplifiers (for stereo operation) and two ...

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Din Rail Mounting BracketRadio Design Labs DRA-35F Din Rail Mounting Bracket

The DRA-35F is a DIN rail mounting bracket that provides positive mounting for any RDL FLAT-PAK™ module. DIN rail mounting is ideal in locations subject to vibration, in confined spaces or where traditional rack mounting is not desired. ...

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