I was just given a Pro-197 from a coworker today, and upon getting something programmed and downloaded real quick, it was immediately having a problem on VHF. Its as if the squelch is not working. I got to the point where I had the attenuator on, no antenna plugged in and it would still have an "open squelch" on most anything VHF. I have a couple digital trunked systems programmed it will receive those seemingly OK. I've never ran into something like this. All other radios are working fine in the shack. I have another 197 in my mobile and it does not have the same issue, so it seems to be something with this radio. Has anyone seen or heard of anything such as this?
Pro-197 squelch issue?
- Thread starter hanlonmi06
- Start date
- Status
doctordialtone
Member
HAVE YOU SEEN THESE?
Pro-197 Squelch Help
I have searched the forums but could not find a good answer to my problem. When I first bought my Pro-197 it would work as desired, then one day without changing any settings the squelch became stuck on open. I can turn the adjustment knob however it does not do anything. I mainly monitor a p25...
Pro 197 issue
I have had my PRO 197 for about a month now, to replace my old Pro 163. It has been working fabulously until very recently. The first problem was that i lost any reception to NOAA weather radio, and i am unable to get it, regardless of where i am. Second thing i noticed was that some channels...
No, I hadn't. I made an attempt at a search of the forums, but apparently I didn't do something right. May I ask how you did the search?
The first thread seems more up the alley of what I am dealing with. The radio was given to me and the story goes that it sat in his parents closet for some time. That thread was exactly the kind of thing I was after, just didn't search well enough, thank you for posting that.
The first thread seems more up the alley of what I am dealing with. The radio was given to me and the story goes that it sat in his parents closet for some time. That thread was exactly the kind of thing I was after, just didn't search well enough, thank you for posting that.
I broke the radio down, pulled the board with the vol/squelch and inspected it. No obvious signs of cold joints on visual inspection, probed them with a small pick and didn't seem to find any mechanical issues either. I sprayed the pot assembly with a few hits of deoxit, worked the knobs quit a bit. I also re-flowed each pin for the volume and squelch on the circuit board, reassembled and tested, the radio now has a proper functioning squelch.
I guess what threw me off was the squelch failing "open". Having never ran into this, it never really occurred to me that a symptom like open squelch would be a faulty pot.
I guess what threw me off was the squelch failing "open". Having never ran into this, it never really occurred to me that a symptom like open squelch would be a faulty pot.
doctordialtone
Member
- Status
Similar threads
SDS100/SDS200:
DCS intermittent squelch tail
