Lawmate SAW filter upgrade

Today I changed the SAW filter on my Lawmate 1.2GHz receiver.
lmsaw1
The lawmate receiver is nice and compact…

lmsaw2
The underside of the pcb.

lmsaw3
The topside. Notice the 90° pin-header solution.

lmsaw4
Desolder the case.

lmsaw5
Desolder the pin-headers.

lmsaw6
The old filter. F480-2.

lmsaw7
New narrow band filter D480A

The whole modification took about 30 minutes.

Here is a link to my guide on changing SAW filters in receivers.

I have one original lawmate receiver and one modified now. I’m going to compare them with similar antennas on my diversity switch and see which one performs the best.

One thought on “Lawmate SAW filter upgrade

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.