Laptop + 464.8000= Make it STOP!

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CBP_LB
Posts: 60
Joined: Wed Nov 17, 2004 3:27 am
What radios do you own?: XTS3000-III UHF

Laptop + 464.8000= Make it STOP!

Post by CBP_LB »

Ok, as I am sitting here going thru my email, I noticed my AS3 flashing at me non-stop, so I switch to PL Disable, and can hear static and in some positions, open/dead air, with a slight scratch every other secound.

Well I closed my lid and my computer went into hibernate and the static stopped.


also went thru all my other channels and only seems to do it on this specific ch.

any ideas what this might be from? and how to make it STOP!!!!!!!!!

Thanks Will


Late Entry: I'm using a Dell Latitude CPx Windows 2000 PRO SP4 - 648mhz (think thats right)
Last edited by CBP_LB on Mon Feb 26, 2007 5:31 pm, edited 1 time in total.
William Hayes
Inland Empire, CA

In Loving Memory; We miss you DAD!
http://iaff935.org/index.cfm?section=8&pagenum=264
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Tom in D.C.
Posts: 3859
Joined: Tue Sep 04, 2001 4:00 pm
What radios do you own?: Progreso soup can with CRT

AS3 "hearing" computer...

Post by Tom in D.C. »

The computer is generating a signal on 464.8 as
a part of its internal switching/operation. The only
thing you can do is to move the radio farther from
the computer. Happens all the time to everyone.
Tom in D.C.
In 1920, the U.S. Post Office Department ruled
that children may not be sent by parcel post.
thebigphish
Posts: 1477
Joined: Sat Nov 29, 2003 10:10 pm
What radios do you own?: AM/FM

Post by thebigphish »

ahhh birdie frequencies! Gotta love them.
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kb0nly
AKA: The Computer Doctor
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Post by kb0nly »

Yep, been there done that. You walk into my shack and its like a RF rich box, HT's can't stand that room, they go nuts on just about any band and frequency with all the stuff i have turned on in there. All the radios i have going in there on the other hand never skip a beat, why, because they don't have inside antennas!
Duct tape is like the force, it has a dark side and a light side and it holds the universe together.

"I Reject Your Reality And Substitute My Own!" - Adam Savage
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mr.syntrx
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Post by mr.syntrx »

Most of my computers do that around that frequency too.

I find it interesting to fire up a spectrum analyser next a computer, to see what it's pumping out.
AEC
No Longer Registered
Posts: 1889
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Post by AEC »

With all the different frequencies being generated by computers, it's a wonder more troubles don't crop up...the LCD has a clock, the CPU has one, then the bus uses clock frequencies as well as software, DRAM and video.

They all use clock generated frequecies that are either primary or overtone/harmonic-related or divided up/down.

That's why Yaesu began placing a control in their menu structure for shifting the clock frequency if a birdy pops up on a specific channel/frequency.

There are days I wish computers were never invented!

A lot of these troubles stem from the lax shielding most have, so they radiate all that noise without many noticing, unlike 'us' that have equipment that suffers from unshielded or poorly shielded computers, notably class B and C garbage.

This is just like those NAP chassis TV sets.......
Hightower
Posts: 976
Joined: Mon Sep 24, 2001 4:00 pm

Post by Hightower »

Try over-clocking OR under-clocking the laptop by 25-50Mhz - see if that moves the birdie to a different freq. :D
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