SDS200 Hum Reports

Status
Not open for further replies.

MisterLongwire

Amateur radio operator/QC tech for radio mfr.
Banned
Joined
Jan 1, 2014
Messages
578
Location
San Marcos,Escondido, CA.
Ewwww..why would you want a Whistler because of a slight hum? <gag> I heard from a few select people they will leave the scanner biz. BTW those MFJ speakers kick butt.....I have one hooked up to my 200 and it is sweet.
 

allend

Member
Premium Subscriber
Joined
Feb 1, 2012
Messages
1,378
Location
Long Beach, CA
Its crazy that people keep defending Uniden about this HUM problem and say that their radios have the HUM. They all have the HUM noise. It started from the first run of radios and to this day the latest batches of radios have the same issues. There is no difference in specs of these radios and parts or re-design along the way.
 

03msc

RF is RF
Premium Subscriber
Joined
Jun 3, 2011
Messages
4,102
Location
The Natural State
Its crazy that people keep defending Uniden about this HUM problem and say that their radios have the HUM. They all have the HUM noise. It started from the first run of radios and to this day the latest batches of radios have the same issues. There is no difference in specs of these radios and parts or re-design along the way.

It's crazy that you keep claiming that "they all have the hum noise" when people have told you over and over that some do not.
 

Ubbe

Member
Joined
Sep 8, 2006
Messages
9,675
Location
Stockholm, Sweden
It's a mechanical grounding problem and are dependent of how well the metal pieces make contact to each other and how well the screws are tighten and so on. And that will be different in different scanners and could change after a while in use. The best solution would be to solder a copper braid between the screening plates and chassi ground. Some designs even solder the screening plates in place to make sure that they are properly grounded.

/Ubbe
 

MisterLongwire

Amateur radio operator/QC tech for radio mfr.
Banned
Joined
Jan 1, 2014
Messages
578
Location
San Marcos,Escondido, CA.
Oh yeah. Go right ahead and make all the scoring you want. First go ahead and void your warranty...that is if you have either a SDS100 or a SDS200. Then with all your brilliance and knowledge let your "welding"melt your radio. Gimme a break!
 

jjbond

Banned
Banned
Joined
May 2, 2003
Messages
401
I just got mine about a week ago. Sounded good until 2 days ago, now I have a hum. It stops if I squeeze the case like someone suggested. Any other tips on the copper tape fix or how to do it? Love the scanner overall. It's pulling in trunked systems I never could hear on my 536HP. The hum is a little annoying.
Exact same thing that happened to me, arrived fine, week later started humming squeezing the case helps a bit.
 

sibbley

Member
Premium Subscriber
Joined
Feb 18, 2013
Messages
1,530
Location
Nazareth, Pennsylvania
I have yet to hear the hum in my SDS200. To be fair, most of my scanning is done in a noisy environment. Not to mention, my hearing isn't exactly perfect after all my years of not using ear protection.
 

seth21w

Member
Joined
Mar 21, 2010
Messages
1,017
Location
Somewhere monitoring the air.
The bcd536hp has the same hum as the sds200. My sds200 hums with the part but I've just gotten used to it now. Too lazy to open it back up and apply more copper tape. The bcd996 base model doesn't have this problem but I'm guessing the newer LCD that are used in 536 and 200 are different than 996.
 

werinshades

Member
Premium Subscriber
Joined
Jan 21, 2002
Messages
6,150
Location
Chicago , IL
I think this "issue" has been resolved? UPMan has stated in the past, that the "sound" that you hear with "external speaker" can be "mitigated/not eliminated" by installing the "free/supplied part", or you can send it in to Uniden repair if you're not comfortable doing so. The "hum" is actually a "processor noise" which is "more evident while using the rear speaker jack and an external speaker". As an owner of an SDS 200 you have an option of.....performing the modification/returning the scanner for refund/dealing with it. No...this is not a "defect" as some of shouted from the mountain top. Their is no "return campaign" that Uniden has/will initiate. After 24 pages on this thread, is there anything else that hasn't been discussed that some of us possibly missed?
 

frazpo

Member
Premium Subscriber
Joined
Jan 14, 2007
Messages
1,477
Location
SW Mo
I've read that the issue is quite obvious through the internal speaker. Mine is, or was. With some proper grounding as mentioned it is now unnoticeable. I've also read that there were no issues with external speakers on devices that were humming on their internal speakers. So I don't think its isolated to external speakers.
 

werinshades

Member
Premium Subscriber
Joined
Jan 21, 2002
Messages
6,150
Location
Chicago , IL
I've read that the issue is quite obvious through the internal speaker. Mine is, or was. With some proper grounding as mentioned it is now unnoticeable. I've also read that there were no issues with external speakers on devices that were humming on their internal speakers. So I don't think its isolated to external speakers.

I think a resolution was offered. If someone thinks there is more to it, send it to Uniden repair for an evaluation. Nothing else to do is there? I don't recall it being problematic utilizing the internal speaker, but I'm sure if you're in a quiet environment, you will hear alot of things you never heard before. Stand by....my refrigerator just turned on! :ROFLMAO:
 

TailGator911

Silent Key/KF4ANC
Joined
Feb 12, 2005
Messages
2,687
Location
Fairborn, OH
I have been putting my 2nd SDS200 through the ringer getting it ready for a gps trip. I use external speakers on every scanner and with this newest unit I paired it with the Uniden BC20 speaker, really only because I was curious about the noise filter on it and wondered if that feature might eliminate the noise I hear on AM air band. It does help, but not quite as much as I wished it did. Audio is nice and clear, no buzz no hum no issues. I'll be the first to admit I have hearing damage and issues with certain low frequencies. So, I use surrogates lol. My wife, my daughter, in-laws, even a friendly neighbor have all volunteered their ears. Full-quieting, no noise reported. In fact, my daughter had me turn off my laptop because the processor sounds like a lawn mower in the front yard. Room was quiet. Now, how in the heck, if this scanner is so 'problem prone', have I managed to get two (2) SDS200s with zero issues or problems? Yet I just lost my butt in a cruise ship casino over and over again? lol Where was Lady Luck then? The odds are not in my favor, believe me.

Every successful person, business, or corporation will have critics, some real, some imagined, nipping at their heels all the way to the top of the hill. It's the nature of the beast.

Mr. Fujimoto still puts out a very fine radio. Uniden is leading the world in scanner radio innovation. No one can dispute that.

JD
kf4anc
 

frazpo

Member
Premium Subscriber
Joined
Jan 14, 2007
Messages
1,477
Location
SW Mo
Now, how in the heck, if this scanner is so 'problem prone', have I managed to get two (2) SDS200s with zero issues or problems?
Lol. I really hope your not indicating this isn't a legitimate issue. Thanks to misinformation and doubters this seems to be turning into some sort of conspiracy theory. I had it. It was my INTERNAL speaker, as it with many others. I had the factory fix installed when it arrived however the hum was still audible. I installed more grounding it is now 99.99% hum free.
 

werinshades

Member
Premium Subscriber
Joined
Jan 21, 2002
Messages
6,150
Location
Chicago , IL
Lol. I really hope your not indicating this isn't a legitimate issue. Thanks to misinformation and doubters this seems to be turning into some sort of conspiracy theory. I had it. It was my INTERNAL speaker, as it with many others. I had the factory fix installed when it arrived however the hum was still audible. I installed more grounding it is now 99.99% hum free.

Very good...you took care of it. I never heard of an internal speaker issue (or maybe didn't pay attention to the numerous posts), but the "issue" has been "resolved" by Uniden providing a "fix". "Mitigation is not elimination" as UPMan has previously posted. People have options as I mentioned...fix it/return it or find some other noise to cover it. Have we made it to page 25 yet? :unsure:
 

werinshades

Member
Premium Subscriber
Joined
Jan 21, 2002
Messages
6,150
Location
Chicago , IL
Not sure I am on my phone but I am guessing it will. You posting complete sense might throw some people off though.

I'm waiting for Uniden's "magic wand" to be offered. Maybe this will resolve all of the complaints? On that note, maybe Ford can issue one, or Sony or......:unsure:
 

eaf1956

Member
Feed Provider
Joined
May 11, 2007
Messages
3,497
Location
Evansville, IN
I'm waiting for Uniden's "magic wand" to be offered. Maybe this will resolve all of the complaints? On that note, maybe Ford can issue one, or Sony or......:unsure:

Or Whistler will come out with a new scanner! :sleep: And only 24 pages of the same ole complaints even when told time after time it is what it is.
 

TailGator911

Silent Key/KF4ANC
Joined
Feb 12, 2005
Messages
2,687
Location
Fairborn, OH
I am not disputing the legitimacy of the hum issue, not at all. I am just marveling at my luck and the lack of it in some cases. But I do think it only affected a production run now and then, skip and miss, because the radios with a legitimate hum issue are in the minority. So is it just dumb luck that I get 2 SDS200s in perfect health? I can't explain it. If I did have an SDS200 with a hum issue, I would be making my voice heard about it as well. I hope everyone gets their respective issues repaired or replaced, so they can get back to what it's all about - scanning!
 

werinshades

Member
Premium Subscriber
Joined
Jan 21, 2002
Messages
6,150
Location
Chicago , IL
I am not disputing the legitimacy of the hum issue, not at all. I am just marveling at my luck and the lack of it in some cases. But I do think it only affected a production run now and then, skip and miss, because the radios with a legitimate hum issue are in the minority. So is it just dumb luck that I get 2 SDS200s in perfect health? I can't explain it. If I did have an SDS200 with a hum issue, I would be making my voice heard about it as well. I hope everyone gets their respective issues repaired or replaced, so they can get back to what it's all about - scanning!

Go ahead and celebrate :). These threads are dominated by complaints that no one here can do anything about. What's that court saying.."asked and answered". As I previously posted, if it wasn't for these forums, a majority of us wouldn't have given the "processor noise/not a hum" a second thought, but would have marveled as to how well P25 simulcast reception is. If it is bothering you that much, you have options as every one of the SDS200's is still under warranty. If you have a large amplified speaker hooked up to anything, I think you might hear alot more than expected. It's a scanner...enjoy.
 
Status
Not open for further replies.
Top