[App_rpt-users] wire length...

[Ken]

I think the problem is that the computer would be on a different part of
your power system than the radios and that would cause ground loop issues,
unless you add USB isolators like one posted here a few weeks ago.

But I never stand in front of the rack. I am in the shack running SSH/WinSCP
on the shack computer.

Heck, I have even done program upgrades to the system while staying in
hotels in foreign countries ....

73
GL
Ken


> -----Original Message-----
> From: app_rpt-users-bounces at ohnosec.org [mailto:app_rpt-users-
> bounces at ohnosec.org] On Behalf Of Bryan D. Boyle
> Sent: Sunday, December 04, 2011 9:24 PM
> To: app_rpt mailing list
> Subject: [App_rpt-users] wire length...
> 
> wondering...there's a legitimate length restriction on USB
> cables...but, from the dongle to the radio...the audio and control
> signals...analog...
> 
> Reason for asking...have my asterisk computer in the spare basement
> room here...right next to the radios.  All the nice dongles blinking in
> unison..but...thinking (I know...dangerous) it would be nicer to
> actually have the computer in the same room as the rest of the shack,
> and the radios out in the other room so the fans on the power supply
> don't intrude, etc.  And be able to sit at my work area, rather than
> standing in front of the rack...when I'm hacking at the configuration
> files, or...???
> 
> so...thoughts about how long the cables from the dongle to the radio
> itself could be before running into trouble?
> 
> Not thinking of using JK (the old Bell 2-pair station wire, believe it
> or not, have a couple boxes left from the 80s...:)) or UTP...but, have
> a nice spool of belden 8451 (2 stranded conductor, shielded) that's
> used almost as a given in most commercial radio stations etc and we
> never had a problem with l-r phase shift or degradation (and this was
> running audio signals in a transmitter room with 25KW boxes and STLs,
> and the like floating around...).  *shouldn't be a problem, right?*
> 
> Just thinking out loud...I know, try it and see.
> 
> BB
> 
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