Re: [digitalradio] Digital havoc with devices in car

2006-12-26 Thread Chuck Mayfield - AA5J

Robert Chudek - KØRC wrote:


Chuck,
 
I will venture a guess you are using a trial version of the software 
because that is what I am hearing the voice say in the file you posted.
 
73 de Bob - KØRC in MN
 
 


- Original Message -
*From:* Chuck Mayfield - AA5J mailto:[EMAIL PROTECTED]
*To:* digitalradio@yahoogroups.com
mailto:digitalradio@yahoogroups.com
*Sent:* Tuesday, December 26, 2006 2:48 PM
*Subject:* Re: [digitalradio] Digital havoc with devices in car

I recently downloaded and installed MixW2.17. The problem I am having
is an USB audio burst that appears periodically in (apparently)
both the
received and transmitted audio approximately once each four
seconds. I
disconnected from the sound card and from the radio and recorded a
sample into a wav file. Can anyone help me with this problem? I
attached the sample, but am not sure it will accompany this message.

73, Chuck AA5J





No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.5.432 / Virus Database: 268.15.28/604 - Release Date: 12/26/2006 
12:23 PM
 

Thanks, Bob.  You are exactly correct!  I thought I could at least *try* 
the trial version legally, but I guess I sprung a booby trap!  Drats! 
The web page said I should try the trial version before I buy the full 
version.

Do I really want to buy Mixw

73, Chuck


Re: [digitalradio] Digital havoc with devices in car

2006-12-26 Thread Brett Owen Rees VK2TMG

Hi Chuck,

The attachment worked ok here for me. The sound seems to be saying 'trial'
in a female voice. It sounds like a piece of applications software or your
driver is doing this. Have you tried killing off processes using task
manager to see if you can isolate what is causing it?

73,
Brett


--
===
Brett Rees VK2TMG
http://lisp.homeunix.net


Re: [digitalradio] Digital havoc with devices in car

2006-12-26 Thread Danny Douglas
Thats interesting.  I tried several earlier trial versions and all of them 
worked full bore for 2 weeks.  After that, if you tried to use them, you got a 
pop-up that made you wait for a timer to reset before you could do anything 
more.  They still worked if you didnt click on a spot, but that spot set the 
timer every time.

Danny Douglas N7DC
ex WN5QMX ET2US WA5UKR ET3USA
SV0WPP VS6DD N7DC/YV5 G5CTB all
DX 2-6 years each
.
QSL LOTW-buro- direct
As courtesty I upload to eQSL but if you
use that - also pls upload to LOTW
or hard card.

moderator  [EMAIL PROTECTED]
  - Original Message - 
  From: Chuck Mayfield - AA5J 
  To: digitalradio@yahoogroups.com 
  Sent: Tuesday, December 26, 2006 4:17 PM
  Subject: Re: [digitalradio] Digital havoc with devices in car


  Robert Chudek - KØRC wrote: 

Chuck,

I will venture a guess you are using a trial version of the software 
because that is what I am hearing the voice say in the file you posted.

73 de Bob - KØRC in MN


  - Original Message - 
  From: Chuck Mayfield - AA5J 
  To: digitalradio@yahoogroups.com 
  Sent: Tuesday, December 26, 2006 2:48 PM
  Subject: Re: [digitalradio] Digital havoc with devices in car


  I recently downloaded and installed MixW2.17. The problem I am having 
  is an USB audio burst that appears periodically in (apparently) both the 
  received and transmitted audio approximately once each four seconds. I 
  disconnected from the sound card and from the radio and recorded a 
  sample into a wav file. Can anyone help me with this problem? I 
  attached the sample, but am not sure it will accompany this message.

  73, Chuck AA5J




No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.5.432 / Virus Database: 268.15.28/604 - Release Date: 12/26/2006 
12:23 PM
  Thanks, Bob.  You are exactly correct!  I thought I could at least try the 
trial version legally, but I guess I sprung a booby trap!  Drats!  
  The web page said I should try the trial version before I buy the full 
version.
  Do I really want to buy Mixw

  73, Chuck
   


--


  No virus found in this incoming message.
  Checked by AVG Free Edition.
  Version: 7.5.432 / Virus Database: 268.15.27/602 - Release Date: 12/25/2006 
10:19 AM


Re: [digitalradio] Digital havoc with devices in car

2006-12-26 Thread Chuck Mayfield - AA5J
Brett Owen Rees VK2TMG wrote:

 Hi Chuck,

 The attachment worked ok here for me. The sound seems to be saying 
 'trial' in a female voice. It sounds like a piece of applications 
 software or your driver is doing this. Have you tried killing off 
 processes using task manager to see if you can isolate what is causing 
 it?

 73,
 Brett


 -- 
 ===
 Brett Rees VK2TMG
 http://lisp.homeunix.net http://lisp.homeunix.net

 



Brett,
I think it must be encoded in the Trial software somewhere.  I hope it 
will not say Full every four seconds if I buy the Full version. Hmm?
What software does everyone use for digital?

73, Chuck AA5J


Re: [digitalradio] Digital havoc with devices in car

2006-12-26 Thread Jose A. Amador
Michael Hatzakis, Jr MD wrote:

  I’ve got a couple of TNC’s and radio’s in my car that I like to
  operate with backup battery after the car’s ignition goes off. I use
  a charging circuit to keep the battery charged when the car is
  running.

  This is my problem: when I start the engine, the ignition noise
  causes havoc with the TNC and other digital devices.

Is it ignition noise or power glitches?

What brand and model of TNC's are you using?

Because some Kantronics TNC's may use an internal 9V battery as backup,
and prevent the TNC to go nuts with the power glitches. Check the 
schematics
of the KPC-3 and KPC-9612.

  I have tried
  chokes, filter caps etc. But the spikes are too broad. I tried a
  timed delay circuit for delayed switchover, but this causes too much
  complexity. I tried using a diode so devices can run on the filtered
  battery voltage while charging from the mains, but the voltage drop
  prevents proper charging.

Did you use POWER Schottky diodes? They have lower voltage drop.

It might be interesting to consider the power on switch of the FT-757, 
which uses a
relay actuated by a circuit protected by a diode in series. The relay 
won't close with low
voltage or reversed polarity.

  Any other ideas on how I can make this work?

You have batteries, and you should not allow the starter to draw power 
from them.

Otherwise, with no batteries, one large ESD (say, 1 farad @ 16 V) might 
help. It is what
some people with large audio power amplifiers to have some local power 
reservoir close
to their monster amplifiers.

But if your problem are power glitches, and might very well be the case, 
you should isolate
your radios and TNC's from the main battery during startup.

How is the health of your main battery? Maybe a portable digital scope 
hooked on top of it
might reveal what happens during startup...it is just a different kind 
of EKG...

Jose, CO2JA




DX Cluster telnet://cluster.dynalias.org 

Suggested Calling/Beaconing Frequencies:

All frequencies are USB and assume a centre audio frequency of 1000Hz
(e.g radio dial at 14.077.4 and 1000Hz on your waterfall = 14078.4)

20M:   Primary : 14.078.4 Secondary: 14.076.4 

30MPrimary:  10.142   Secondary 10.144

80MPrimary : 3583 Secondary: 3584.5 

 
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