Simple question from a simple user

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H4S2BURN

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Greetings. I am new to the forums, although I have used the excellent RadioReference site many times over the years. I am not an "enthusiast" as most of you folks are, so please cut me a little slack on this very simple question. Thanks in advance.

I am a police officer in a rural-ish area, and have two older, lower end Uniden scanners that allow me to keep up on what is going on in my jurisdiction at home without carrying my portable with me around the house. They do a good job as most of our routine traffic is still analog VHF. If something happens and traffic goes to our selectively used digital gear, I retrieve my portable. I have one Uniden unit upstairs and one downstairs for when I am banished there for one reason or another. That's another thread completely.

Recently a couple of Amazon Alexa devices have interjected themselves into the family and I am learning to tolerate them. Actually I have found them to come in handy on occasion. I have a potential use for them, but I want to be certain that this will not damage my units. I called Uniden support. Their response was that since what I propose in not officially tested by them, they understandably would not take a stand either way. They suggested I contact users on the internet and this site was one of their suggestions. So... here I am.

Very simple. Both of my units ( a BCT8 and a BC355N ) came with hardware for and support 12v power input for mobile use. The install docs specifically state to connect them to the accessory circuit in a vehicle, which to me seems to indicate that the units would not be harmed by the power supply being dropped when the ignition is off, and subsequently re-established when the vehicle is started while the unit is in the "on" position at the unit itself.

So, what I want to do in the house is put each on a good quality, certified smart plug that would be controlled by Alexa to turn the off and on. One of the plugs would be on a circuit that is on a UPS as well. I know there are a lot of questionable quality smart plugs available at very low prices, but I intend to use something that is to the best of my ability, verified as being something built without a lot of corner/cost cutting.

This seems to me would subject the units to the same type of "on/off at the power source" operation as when installed in a vehicle, and SHOULD be even more stable since the condition of the power supply in a vehicle can vary greatly depending on the vehicle condition, battery condition, as well as what could be an erratic off-on-off-on series of changes as the car is started one some older vehicles.

So... I said all that to ask this. Does anyone out there have any experience powering a unit running on house current through a smart plug? Pros / Cons? First hand experience, good or bad? Basically is this going to be harmful to my scanners. Replacing them would not be something I can just do out of hand if I "hose" one or both.

Thanks in advance for any first hand knowledge that comes back my way (hopefully) from this post.

Thanks,

Bewf
 

jonwienke

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Older scanners with no recording function can have the power cut with no issue.

Newer scanners that record audio to the SD card (HomePatrol -1 and -2, BCDx36HP, and SDS models) can suffer card corruption if the power is cut unexpectedly. In addition, any settings changes are lost. Changes are saved when you do a normal shutdown.
 

RadioSc

Doesn't play well with others
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Dec 4, 2017
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Are you planning on running your scanners totally on External Power. With no battery in? With no battery inputed on External power. You will damage your memory banks in any scanner. That kindy goes for any electronic device. Except smart devices like amazon echos. I wouldn't do it. I wouldn't plug my smart tv into a smart plug. With out hitting the power button on tv first to shut it off
 

H4S2BURN

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Indyucky
Thanks for the quick responses so far! EXCELLENT!

Correct. Neither of mine have batteries. I always just assumed the memory is held for a time by a (showing my lack of knowledge) a capacitor or something similar? They have been without external power for several days a time or two and held memory for that long.

I was more concerned about the hardware being damaged, but like the doc said above... probably not.

Just doing my due diligence before I try it.
 

techman210

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Whatever you switch your scanner with, make sure it’s not designed to act as a dimmer for lighting. That will supply DC to the scanner, and it will destroy your input transformer.

If it’s designed to switch any appliance, then you’ll be OK.
 

N9JIG

Sheriff
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As mentioned above the only scanners you need to worry about pulling power from politely are those with SD Cards. Non-SD Card scanners, like your BCT8 and 355 can be turned on and off with a non-dimming smart switch with no problem. It is no different than having it in a car turning on and off with the ignition.

Some much older scanners used dry-cell batteries to maintain memory status, those should be turned on and off politely (meaning with the volume/power switch) and remain plugged in when not in use to maintain the memory as the battery may not last very long. Your more modern scanners can be un-powered for months or years with no loss of channel memory.
 

jaspence

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Internal memory batteries were also used older ham handy talkies. and early computers. My experience is that the 2032 coin cell in my HTX 202 and 404 last several years, as did those in early computers.
 
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