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Gandalf2
New Member
New Member


Call Sign : 26-CT-3246
Posts : 6
Times Thanked : 0
Join date : 2019-11-30
QTH or Location : Harlow
Equipment Used : SS 6900, SS 9900, Lincoln 1

SS9900 Squeak Empty
PostSubject: SS9900 Squeak   SS9900 Squeak Icon_minitimeSat Dec 07, 2019 1:07 pm

Hope i'm in the right departmen but i have a question
about my new SS9900, When it powers up most of the
time i get a very loud but short squeak even before the
power up bleep, is this normal as it catches me out some
times. Can i prevent it.
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m fletch
New Member
New Member
m fletch

Call Sign : 26-CT-3625
Posts : 26
Times Thanked : 3
Join date : 2019-09-03
QTH or Location : Mansfield
Equipment Used : Yaesu FTDX 3000

SS9900 Squeak Empty
PostSubject: Re: SS9900 Squeak   SS9900 Squeak Icon_minitimeSat Dec 07, 2019 6:59 pm

I don't get that on my SS9900 what power supply are you using is it powerfull enough?
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Gandalf2
New Member
New Member


Call Sign : 26-CT-3246
Posts : 6
Times Thanked : 0
Join date : 2019-11-30
QTH or Location : Harlow
Equipment Used : SS 6900, SS 9900, Lincoln 1

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PostSubject: Re: SS9900 Squeak   SS9900 Squeak Icon_minitimeSat Dec 07, 2019 7:29 pm

Thanks for the reply. I am using a 20amp supply but have tried it on another one
and a car battery but as i say doesn't squeal every time. When i power up with no mic
no squeal. I dont think it's the standard mic i'm using as i works ok no hum or anything.
I did make up a cheap standard mic using only the three main leads and all was fine.
As i say though it doesn't do it every time only when i don't expect it. I was told that it is a
known problem on some SS9900's. Any idea's ? Many thanks for the reply.
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Master Virus
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New Member


Call Sign : Romeo Echo 137
Posts : 94
Times Thanked : 2
Join date : 2019-10-09
QTH or Location : Halifax
Equipment Used : CRT SS 9900 Antron 99
Age : 53

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PostSubject: Re: SS9900 Squeak   SS9900 Squeak Icon_minitimeSat Dec 07, 2019 11:30 pm

The radio should work properly and you're not happy so phone the place where you bought it from and they should send you another.


Last edited by Master Virus on Sun Dec 08, 2019 11:48 am; edited 1 time in total
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Alan - Mirror Man
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Alan - Mirror Man

Call Sign : 108CT233
Posts : 72
Times Thanked : 5
Join date : 2019-12-01
QTH or Location : Central Scotland
Equipment Used : CRT SS9900 Beofeng UV5R Yaesu FTDX1200 CRT Micron CRT FP00 Sattelite 2000 antenna G5RV X30 co-linear

SS9900 Squeak Empty
PostSubject: Re: SS9900 Squeak   SS9900 Squeak Icon_minitimeSun Dec 08, 2019 10:22 am

I have the same model and don't have anything like that happening, I run mine from a heavy-duty battery so it can draw all the amps it needs, you could always give that a try and see if it is a power issue. Another thing I would suggest trying is some switch cleaner which you will be able to find in hobby electronics stores, you would be amazed at the amount of seemingly undiagnosable faults it can cure at times.
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Gandalf2
New Member
New Member


Call Sign : 26-CT-3246
Posts : 6
Times Thanked : 0
Join date : 2019-11-30
QTH or Location : Harlow
Equipment Used : SS 6900, SS 9900, Lincoln 1

SS9900 Squeak Empty
PostSubject: Re: SS9900 Squeak   SS9900 Squeak Icon_minitimeSun Dec 08, 2019 11:02 am

Hi there, It's only a couple of weeks old and i dont really want to break the suppliers seals.
I have tried other power sources with no success. The only way to stop it is to power up without
the mic but this can be inconvenient plugging in each time. I am at the moment using the standard
mic, but when i use a replacement mic using just the three wires all is ok. Can't believe it's the
original mic though as it doesn't do it every time and the mic is working properly.
Thanks for the comments.
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Master Virus
New Member
New Member


Call Sign : Romeo Echo 137
Posts : 94
Times Thanked : 2
Join date : 2019-10-09
QTH or Location : Halifax
Equipment Used : CRT SS 9900 Antron 99
Age : 53

SS9900 Squeak Empty
PostSubject: Re: SS9900 Squeak   SS9900 Squeak Icon_minitimeMon Dec 09, 2019 7:54 pm

I think i know what's causing it because it's just happened to me and you mentioned it catches you out  and it's done the same to me.
You also mentioned it only happens when a mic is connected and doesn't happen when one isn't connected.
I think the reason why it squeak's is because some how the talkback is being activated and the mic being close to the rig is causing feedback.
I turned my volume down fast when it happened to me because the squeak was that loud it made me jump and nearly dropped the radio.
If it's a common problem then maybe there is a bug in the software that activates it sometimes.
Made me jump though.
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Gandalf2
New Member
New Member


Call Sign : 26-CT-3246
Posts : 6
Times Thanked : 0
Join date : 2019-11-30
QTH or Location : Harlow
Equipment Used : SS 6900, SS 9900, Lincoln 1

SS9900 Squeak Empty
PostSubject: Re: SS9900 Squeak   SS9900 Squeak Icon_minitimeMon Dec 09, 2019 9:36 pm

Hi there, Thanks for the contact. From what you say though doe's seem to make a lot of sense and something i never thought of. I've took advantage though of the suppliers kind offer of returning the unit for a checkup and if necessary replacement so fingers crossed we'll see what happens. Once again thanks for the contact.
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Master Virus
New Member
New Member


Call Sign : Romeo Echo 137
Posts : 94
Times Thanked : 2
Join date : 2019-10-09
QTH or Location : Halifax
Equipment Used : CRT SS 9900 Antron 99
Age : 53

SS9900 Squeak Empty
PostSubject: Re: SS9900 Squeak   SS9900 Squeak Icon_minitimeMon Dec 09, 2019 9:57 pm

Gandalf2 wrote:
Hi there, Thanks for the contact. From what you say though doe's seem to make a lot of sense and something i never thought of. I've took advantage though of the suppliers kind offer of returning the unit for a checkup and if necessary replacement so fingers crossed we'll see what happens. Once again thanks for the contact.

Only doing what any Charlie Tango member would do and i'm happy their taking it back.
All the best
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