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Old 8th December 2017, 10:28 AM   #511
AKN is offline AKN  Sweden
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Hi,

Victors 1kHz oscillator into RTX6001 (-10dB).

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Old 8th December 2017, 12:55 PM   #512
JensH is offline JensH  Denmark
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GB for RTX6001 Audio Analyzer with AK5394A and AK4490
Modifications are ongoing at the moment. Shipment will resume by Monday next week.

For those who have already received their RTX6001, I have made a description of the modifications needed to improve the distortion at high input levels.

Please take a look at it and report back if this is something you feel that you are able to do yourself. If so, we will send two mounted PCB's for each Analyzer.
I assume most people on this forum will be able to do the modification, avoiding shipping the unit back and forth. Using a solder iron with a fine tip will be an advantage.
 
Old 8th December 2017, 01:13 PM   #513
cwtim01 is offline cwtim01  Hong Kong
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I'll perform the modification myself

A brief testing procedure after the mod is made will be useful (I mean, something like measuring voltages at a few test points, before we fire up the unit to see the distortion improvement at high signal level)
 
Old 8th December 2017, 01:22 PM   #514
lemon is offline lemon  Greece
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Cwtim01, it is better to modifiy the one channel and compare it to other unmodified channel.
 
Old 8th December 2017, 01:24 PM   #515
lemon is offline lemon  Greece
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Quote:
Originally Posted by AKN View Post
Hi,

Victors 1kHz oscillator into RTX6001 (-10dB).

I think that ARTA produces the best results with 48KHz sampling. You prefer Kaizer7 and Exp as Avg.
 
Old 8th December 2017, 01:28 PM   #516
lemon is offline lemon  Greece
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Quote:
Originally Posted by JensH View Post
Modifications are ongoing at the moment. Shipment will resume by Monday next week.

For those who have already received their RTX6001, I have made a description of the modifications needed to improve the distortion at high input levels.

Please take a look at it and report back if this is something you feel that you are able to do yourself. If so, we will send two mounted PCB's for each Analyzer.
I assume most people on this forum will be able to do the modification, avoiding shipping the unit back and forth. Using a solder iron with a fine tip will be an advantage.
JensH, it seems very easy and simple the modification.
I dοn't think, it can make it difficult for DIY members.
 
Old 8th December 2017, 01:43 PM   #517
kannan_s is offline kannan_s  United States
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Looks to me this mod should be possible for me to do. Probably I have to add some fine tips for SMD work to my soldering kit.
 
Old 8th December 2017, 01:44 PM   #518
cddumat is offline cddumat  Germany
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Quote:
Originally Posted by JensH View Post
For those who have already received their RTX6001, I have made a description of the modifications needed to improve the distortion at high input levels.

Please take a look at it and report back if this is something you feel that you are able to do yourself.
Hello Jens, i do think as well that most of the participants here should be very capable to do so. My only question would be if warranty would be affected by this mod performed by users.

Regards, Clemens
 
Old 8th December 2017, 01:48 PM   #519
kevinkr is offline kevinkr  United States
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GB for RTX6001 Audio Analyzer with AK5394A and AK4490
Quote:
Originally Posted by lemon View Post
Cwtim01, it is better to modifiy the one channel and compare it to other unmodified channel.
Actually it would be better to do a sweep of each channel before and after modification, that way you can do it all at one time, and you are not comparing channel A to channel B, but can directly observe the improvement on each channel. It should be clear that the test must be performed with the same software and settings both times.

It's also perfectly valid to just check it after completing the modifications to verify that the modification was performed correctly.

For those of us in North America I would probably recommend Kynar or teflon 30awg wire wrap wire for the modification, unless the retrofit already includes the wire.
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Old 8th December 2017, 01:57 PM   #520
Microfast is offline Microfast  Italy
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Jens,

For me no problem, you can send me the two little pcb ...

Marco
 

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