Difference between revisions of "RF output switch"

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(Created page with "The Portsdown team have developed an RF output switch capable of switching the low level output of the Portsdown filter modulator board to separate amplifiers fr 70, 144, 437...")
 
 
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The Portsdown team have developed an RF output switch capable of switching the low level output of the Portsdown filter modulator board to separate amplifiers fr 70, 144, 437 and 1255 MHz.
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The Portsdown team have developed an RF output switch capable of switching the low level output of the Portsdown filter modulator board to separate amplifiers for the 70, 144, 437 and 1255 MHz bands.  Note: due to potential high insertion loss, it is not recommended to use the switch above 23cms.
  
 
[[File:Pd out SW.jpg|400px]]
 
[[File:Pd out SW.jpg|400px]]
  
The Schematic and parts list with Farnel and Digikey part numbers are available for download.
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The Schematic and parts list with Farnell and Digikey part numbers are available for download.
  
[[:File:Portsdown Output Switch.pdf| Board schematic]]
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[[:media:Portsdown Output Switch.pdf| Board schematic]]
  
[[File:Portsdown RF Switch Parts H.xls]]
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[[media:Portsdown RF Switch Parts H.xls]] (Now with correct Farnell p/n for 4.53K Resistor)
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This file, when printed actual size, shows the exact size of the output switch board: [[ File:Portsdown Output Switch Bottom.pdf]]
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The data sheet for the Analogue Devices RF switch IC used on the board [http://www.analog.com/media/en/technical-documentation/data-sheets/ADG904.pdf is available here].

Latest revision as of 10:14, 2 July 2021

The Portsdown team have developed an RF output switch capable of switching the low level output of the Portsdown filter modulator board to separate amplifiers for the 70, 144, 437 and 1255 MHz bands. Note: due to potential high insertion loss, it is not recommended to use the switch above 23cms.

Pd out SW.jpg

The Schematic and parts list with Farnell and Digikey part numbers are available for download.

Board schematic

media:Portsdown RF Switch Parts H.xls (Now with correct Farnell p/n for 4.53K Resistor)

This file, when printed actual size, shows the exact size of the output switch board: File:Portsdown Output Switch Bottom.pdf

The data sheet for the Analogue Devices RF switch IC used on the board is available here.