SDS100/SDS200: Update on SDS100 not receiving issue

[NS9710]

After talking to HamRadioOutlet and Uniden, they've denoted that it seems to be a bad battery, or bad battery receiver prongs in the scanner, attached are the pins in the scanner and on the battery, however nothing seems to stand out as far as what's wrong.

 

[KevinC]

After talking to HamRadioOutlet and Uniden, they've denoted that it seems to be a bad battery, or bad battery receiver prongs in the scanner, attached are the pins in the scanner and on the battery, however nothing seems to stand out as far as what's wrong.

So the unit doesn't power up? If it does I doubt the battery is the issue.

 

[richardbritt]

Please let us know the symptoms. Plenty of us have actually repaired electronic equipment for a living and can offer suggestions. I myself was the service manager for Heathkit in Virginia Beach years ago, and was a technician for the City of Norfolk Radio Repair Shop for a bunch of years.

 

[NS9710]

It just randomly quits receiving any signal when on battery power after a random time [with no warning] during scanning, however when on wall power there is no issue.

 

[richardbritt]

Have you tried another battery? I bet the voltage is not holding it's voltage and it's not warning of the low voltage. Doesn't sound like it's a scanner issue.

 

[richardbritt]

Fully charge the battery, run the scanner and see how long it takes for it to stop receiving. It should last several hours. I have a bcd436hp, not a sd100 but I get like 6 hours on my batteries. Measure the battery voltage after it stops receiving. It's probably low enough for the display to be on, but not enough for the receiver to actually work and process signals

 

[NS9710]

I only have the one battery @richardbritt, HRO is shipping me a new battery to see if that's the issue, there is no voltage warnings or anything, the only way I'll know anything is if I light up the display and it goes to the local P25 system and no signal read out.

 

[NS9710]

@richardbritt in regards to battery power, the battery display voltage field traditionally reads 3.6#V or higher, so it still has plenty of "juice" in the battery pack.

 

[tvengr]

the only way I'll know anything is if I light up the display and it goes to the local P25 system and no signal

What is the RSSI value?

 

[NS9710]

Before this acts up the scanner is a steady -77 to -75 value, but once this issue starts it will not register any signals at all until I shut it off and power it back up.

What is the RSSI value?

 

[NS9710]

I have it set to 3,350V to alert me on low battery voltage.

Fully charge the battery, run the scanner and see how long it takes for it to stop receiving. It should last several hours. I have a bcd436hp, not a sd100 but I get like 6 hours on my batteries. Measure the battery voltage after it stops receiving. It's probably low enough for the display to be on, but not enough for the receiver to actually work and process signals

 

[NS9710]

It has dropped all reception at 3.85V after maybe 4-5 hours scanning.

Fully charge the battery, run the scanner and see how long it takes for it to stop receiving. It should last several hours. I have a bcd436hp, not a sd100 but I get like 6 hours on my batteries. Measure the battery voltage after it stops receiving. It's probably low enough for the display to be on, but not enough for the receiver to actually work and process signals

 

[tvengr]

Before this acts up the scanner is a steady -77 to -75 value, but once this issue starts it will not register any signals at all until I shut it off and power it back up.

The good news is that RSSI will show -40dbm if the scanner has the cold solder joint problem