[minima] Re: for minima project
- From: allison <ajp166@xxxxxxxxxxx>
- To: minima@xxxxxxxxxxxxx
- Date: Mon, 25 Jul 2016 17:29:48 -0400
On 7/25/16 3:55 PM, Sandeep Lohia wrote:
any use of SAW filter here in extra conversion?
they can be re-used from old television sets...
They are very wide, 6mhz. You can do better with an LC filter.
The 45Mhz crystal filter I used was similar to those used in old analog
cell phones
and some of the low cost scanners. The look like the 10.7mhz IF filters
used in scanner
and many old FM HTs (nominally 15khz bandwidth, three legs, HC18 size).
Allison
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