On 5/27/2012 5:20 AM, Joel Black wrote:
RS232 has a reliability issue past 50'.
Not if you use low capacitance cable, like CAT5. At some point, the
RS232 specification for distance was redefined on the basis of total
cable capacitance.
73, Jim K9YC
John,
RS232 has a reliability issue past 50'. I have seen it work up to 60'
with DDS circuits using CAT5 as the conductor and RJ45-to-DB9 / DB25
connectors. After that, all bets are off.
BTW, this is not anecdotal, this is my experience in the real world.
73,
Joel - W4JBB
On 5/26/2012
Or you can use an RS232 to RS442 level convertor to a distance up 1.200
meters
Peter
http://www.axxessid.com/Pguide/102-603.html
Joel Black schreef:
John,
RS232 has a reliability issue past 50'. I have seen it work up to 60'
with DDS circuits using CAT5 as the conductor and RJ45-to-DB9 /
Question . . . .
My station is in a 2nd floor loft.
The antenna coax cables come into the basement utility room and then up behind
the plasterboard walls to my shack.
Will I be able to put the KAT 500 and KPA 3 in the basement utility room and
control them by snaking an RS232 cable from the
John:
I still think that the ATU and amplifier are things that you'd normally want to
keep nearby and in view in the radio room. It's more convenient there, you can
easily observe what's going on, you can turn them on and off easily. The
losses contributed by an extra 25' of quality coaxial
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