> Though I lust after a SD 788, Jim Brown says its input socket shells may not 
> be connected to chassis.  ".. I've seen it in connectors built into very good 
> quality preamps and mics from a variety of manufacturers.  So far the list 
> includes Audio-Technica, Mackie, Neumann, Sound Devices and Tascam."  
> Probably worth contacting Sound Devices if you own one as I'm sure they will 
> have a cure or retrofit if they know of the problem.

Interesting.  I noticed some odd things about the 788T which might relate to 
what you mentioned:

1.) The first night of testing, I had the unit running off of battery power, 
but noticed a spike in the level meters when I attached my laptop power cord to 
my laptop.  Strange!

2.) Still in battery mode, I also noticed level-meter spikes when I touched the 
headphone plug to the headphone jack on the 788T.  It definitely seemed as 
though something funny was going on electrically, but I don't know enough to 
comment.



> A (possible) cheap cure worth trying on unbalanced lines is the clip on 
> Ferrite sleeves often found on computer cables.
> 
> http://jaycar.com.au/productView.asp?ID=LF1294&keywords=LF-1294&form=KEYWORD
> 
> Even better if you can take a turn round the Ferrite.  You need them at both 
> ends as close to the connector as possible.


Huh! This looks interesting, too.  Have you had any experience with "rf 
filters" such as the Shure a15rf xlr barrels?


> Do let us know what you tried even if it doesn't work.  Is it AM radio you 
> are getting?

I'll experiment with more things in the future - yesterday's method of skipping 
the extension cable seemed to work great in the RFI-heavy Times Square area, 
luckily.

Thanks for the info.

cheers,

j
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