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Author Topic: Mouse freezes  (Read 2642 times)
AB1PJ
Member

Posts: 33




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« on: May 19, 2012, 05:03:06 AM »

I am using a vertical wire antenna (31') on my vehicle  (RV)
I put on a 4:1 voltage balun at the base of antenna and a
long run of coax to the antenna tuner inside the vehicle.
The balun ground is connected to vehicle ground.

The tuner tunes to all bands 6m thru 40m + some of 80m

I use a Flex 3000 radio and have a ameritron AL500 linear amplifier
between radio and tuner

The radio is connected to my laptop with a firewire cable
I have several beads on this firewire cable at the radio end.

Every time i Tx on 20m, with linear on, my mouse freezes
On all other bands there is no such problem

The software runs fine and rest of the laptop works fine

Any suggestions?
thanks
jim
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K1CJS
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Posts: 6034




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« Reply #1 on: May 19, 2012, 05:59:35 AM »

Try beads on the mouse cable as well.  There is electronics in the mouse itself that may well be being affected by the RF.
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K0BG
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Posts: 9860


WWW

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« Reply #2 on: May 19, 2012, 06:51:29 PM »

First, the use of a voltage balun was the wrong choice. Depending on the actual tuner, the built in one, or a 1:1 CURRENT balun would be a better choice, if indeed one was needed at all!

Just as important is how the antenna is fed! If the fed is coax, you might be losing up to 80% of the power fed to the antenna, or, almost 100%.

Without knowing a LOT more about the install, anyone (everyone) is flying blind!


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W8JX
Member

Posts: 5750




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« Reply #3 on: May 19, 2012, 07:46:37 PM »


Every time i Tx on 20m, with linear on, my mouse freezes
On all other bands there is no such problem


Corded or cordless mouse?
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All posted wireless using Win 8.1 RT, a Android tablet using 4G/LTE/WiFi or Sprint Note 3.
AB1PJ
Member

Posts: 33




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« Reply #4 on: May 20, 2012, 12:12:52 AM »

corded
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KD8DEY
Member

Posts: 352




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« Reply #5 on: May 20, 2012, 01:47:15 AM »

I had the same type problem with a cheap mouse
Bought a better mouse (Microsoft intellimouse with intelli-eye)
and the problem went away
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W0FM
Member

Posts: 2055




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« Reply #6 on: May 25, 2012, 11:49:30 AM »

With 500 watts to a more or less "random" wire antenna you could be experiencing brute force RF just swamping the mouse.  And, your RV seems to be the "other half" of your vertical and its metal frame totally surrounds your operating area.  Sometimes high power is simply not in your favor.

I think I'd try cutting the power back first.

73,

Terry, WØFM
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W8JX
Member

Posts: 5750




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« Reply #7 on: May 28, 2012, 05:59:22 AM »

corded

Go cordless and coil cord to wireless sensor up to keep it short. You are picking up RFI on current mouse.
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--------------------------------------
All posted wireless using Win 8.1 RT, a Android tablet using 4G/LTE/WiFi or Sprint Note 3.
WB8VLC
Member

Posts: 120




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« Reply #8 on: May 28, 2012, 07:46:34 PM »

If you do go cordless stay away from the cheap 27 MHz cordless mouses otherwise you open yourself up to having any 10 meter operation freeze the mouse up.

  I had the same problem as you are having and I didn't look at the frequency of the cordless mouse that I purchased.


My Microsoft explorer IntelliMouse is a 27 MHz version that is so bad that it freezes up when transmitting with only 15 to 25 watts on 29.6MHz.

The only fix was to move the Mouse remote head within 5 inches of the mouse itself which pretty much makes wireless useless.
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