Fw: Re: Fw: Fw: Re: Fw: Re: Fw: Re: [Test-Equipment] Spectrum Analyzer BW measurement

Gary Schafer [email protected]
Sat, 31 Jan 2004 23:27:32 -0500


I don't follow you here?

73
Gary  K4FMX

[email protected] wrote:
> It also shows that a signal "more accurately" represented as a 30Khz BW
> at -50dB with a 3KHz RBW does not have a BW equal to 30Khz + RBW when
> measured with a 30Khz RBW. That's what I was after, it carries instead
> the 6x-10x relationship.
> 
> 73 Kees K5BCQ
> 
> --------- Forwarded message ----------
> From: Gary Schafer <[email protected]>
> To: [email protected]
> Cc: [email protected]
> Date: Sat, 31 Jan 2004 22:57:11 -0500
> Subject: Re: Fw: Fw: Re: Fw: Re: Fw: Re: [Test-Equipment] Spectrum
> Analyzer BW measurement
> Message-ID: <[email protected]>
> References: <[email protected]>
> 
> All this really tells you is that the shape factor of each of the 
> filters in a particular analyzer are approximately the same.
> 
> 73
> Gary  K4FMX
> 
> 
> [email protected] wrote:
> 
>>And additional data ......... 
>>
>>Based on your SA data, Gary
>>------------------------------
>>3Khz                3Khz @ -3db       30Khz @ -50dB  
>>30Khz             30Khz @ -3db     275Khz @ -50dB
>>
>>Based on Gary's data.
>>----------------------
>>3Khz to 30Khz    10x at -3dB, 9.2x at -50dB
>>
>>Right in there, again. Thanks.
>>
>>73 Kees K5BCQ 
>>
> 
>