[Lowfer] Homebrewed SSB Filter question - Clarification

[Andy - KU4XR]

I forgot to add the most important detail in my question; but I 
think most would understand anyway, nevertheless, what I am 
hoping to accomplish is, I suppose, a Direct Conversion USB Xmtr.
No IF freq's, or conversions up or down, just straight out of the
DBM, thru the USB filter, amplify it to stay linear, but drive 
the PA. Not planning on doing Linear modes to start with, I'm
hoping to try Jason, which dosen't require a linear PA, as long
as I can keep distortion out of the picture.

Thanks to Jim, and Chris for your replies so far. I'm going to 
save all the replies to digest, and research.

I hope the clarification makes better sense as to what I hope
to do. Thanks again !!

Andy - KU4XR - EM75xr - Friendsville, TN.
LOWfer Beacon " XR " @ 184.322 KHz ( QRSS-60 )
Coordinates:  N:  35* 43' 54" - W:  84* 3' 16"
http://www.myspace.com/beaconxr


--- On Wed, 4/29/09, Andy - KU4XR <ku4xr at yahoo.com> wrote:

> From: Andy - KU4XR <ku4xr at yahoo.com>
> Subject: Homebrewed SSB Filter question
> To: lowfer at mailman.qth.net
> Date: Wednesday, April 29, 2009, 4:29 PM
> Hello All:
> 
> I want to experiment a little, and try building a SSB
> filter that
> will pass the USB of my Osc. at 184.322 KHz. I have never
> attempted
> such before, but want to try just to see what happens. Once
> I 
> finish putting together the DSB Modulator, I'll need to
> shave off,
> or greatly reduce the LSB component.
>  
> *** QUESTION *** ; If I use crystals to build the filter,
> will my
> Center Frequency ( Fc ) need to be 185.822 KHz ?? I have a
> handfull
> of 184.322 KHz crystals, but that would pass my carrier
> freq. and
> not the USB audio. Am I correct on this ?? Not sure, so
> asking.
> 
> *** SECONDLY *** ; Since this will be used with a signal of
> about
> 33mW; what are some thoughts on possibly using Op Amps to
> design
> a Bandpass filter for the USB audio ?? If this approach
> will work,
> the Op Amps will also serve as amplifier stages ( I Think
> ).
> 
> This is just something I want to experiment with so I can
> at least
> say I tried. I'll appreciate any replies.
> 
> Thanks, and 73 ::
> 
> 
> 
> Andy - KU4XR - EM75xr - Friendsville, TN.
> LOWfer Beacon " XR " @ 184.322 KHz ( QRSS-60 )
> Coordinates:  N:  35* 43' 54" - W:  84* 3'
> 16"
> http://www.myspace.com/beaconxr