Modifications for the Radio Shack HTX-252

14-08-2001 Squelch modification for HTX-252 English language
08-11-2001 HTX-252 Packet English language (1 Kbytes)
 View all modification in one click. This can be a very big file.!! (28 Kbytes)

Squelch modification for HTX-252
Author: Fran Flynn KM1Z -

On the RadioShack HTX-252, the squelch takes a fairly long time to open, so much so that the first few syllables in a transmission are often lost.

I modified my rig to shorten this time constant by removing a chip capacitor. The location of this part is shown in the picture, it is just in front of the transistor in the highlighted circle in the diagram on the bottom of the rig.

The value printed on it is 105, I assume this means 1mfd. The picture shows the capacitor already removed. You can see the silkscreen on the board that was previously under the capacitor.

Now the sqelch snaps open almost immediately when a signal appears.

Steady hands, some solder wick, a pair of tweezers and a small tipped soldering iron does the trick.

It's a surface mount capacitor.

Fran Flynn Km1z 8/13/2001

This modification is read 427 times.

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