The development of a 455 kHz IF-filter test and measurement setup

Over here the index page with links to lots of information about the long way to come to a hobby test setup to measure very accurately 455 kHz IF filters, up to -100 dB deep!!
All types and impedances, crystal, mechanic or ceramic, working under 600 kHz, can be measured very accurately.
Because an old SPM3/PS3 device from Wandel und Goltermann is being used, this gives the frequency limits.





Most tested filters are from      Murata logo by PE1ABR    and   Kokusai logo by PE1ABR

  © PROJECT ENGINEER:
WALTER - PE1ABR.

455 kHz filter meetplek
Click for larger image




Nederlands?




455if
The long story (with lots of images) about the development history

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The more clever Wandel & Goltermann adapter plug, CF1 mode to BNC
There is some screening and a switchable ground.

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The spin-off: the 455 kHz IF-transformer setup

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The page with lots of measuring results in PDF



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An empty example XLS with all the graph engines and all modified Excel settings.
Direct open by clicking is useless.
Therefore, choose "Right mouse" and "Save target as" for a usefull local save.
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The empty fill-in sheet in PDF to write down a complete measurement set of figures
(download from slow Homeserver)

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The input and output terminating resistor table in PDF
(download from slow Homeserver)




Setup drawing


 
JRC NRD-515 455kHz filters PE1ABR
All together
 
JRC NRD-515 455kHz filters PE1ABR
module version-3
 
De meetmodule
module version-4
 
De meetmodule
amplifier version-4
 


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455 kHz filter information index
Compilation by Walter - PE1ABR - 2012-05-18