Re: VSWR Terminator
- From: "Theo v. Werkhoven" <theo@xxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Sun, 29 May 2005 23:05:16 +0200
The carbonbased lifeform rjkfsm inspired sci.electronics.equipment with:
> Hi,
>
> I need to test some antenna's. The customer wants them tested by
> sweeping with the operating frequencies (1MHz to 3GHz) by using a
> tracking generator, bi-diectional coupler, a spectrum analyzer and VSWR
> terminators. The procedure is to hook up all equipment through the
> production cable with the test terminator at the end and use that to set
> the spec an to mid scale and mark. Then attach the actual antenna and
> ensure that VSWR is less than the terminator. This is the procedure the
> customer wants and the customer is a 400lb gorilla. The customer gets
> what the customer wants.
With the setup you describe the return loss is directly read from the SA
when you attach the antennae, no need for an extra calibration.
All you need to care about is the directivity of the coupler, which
needs to better than the return loss you expect.
> Does anyone know where I can get relatively high precision VSWR
> terminators with 'N' or 'BNC' connectors? I need: 1.8:1 (90 Ohms), 1.9:1
Nop, sorry.
Theo
--
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- References:
- VSWR Terminator
- From: rjkfsm
- VSWR Terminator
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