On Apr 18, 2013, at 1:52 PM, Dave <dave.g4ugm
at gmail.com> wrote:
On 18/04/2013 16:05, David Riley wrote:
On Apr 18, 2013, at 10:16 AM, geneb wrote:
> On Wed, 17 Apr 2013, Dave McGuire wrote:
>
>> On Apr 17, 2013, at 5:19 PM, geneb <geneb at deltasoft.com> wrote:
>>> I'm kinda bummed that I've got an IRMA 3270 card and nothing to to
connect it to.
>> Come on over!
>>
> So how do I get there via that little BNC connector? :)
Really big spool of RG-58. If you ask the UPS guy nicely,
I'm sure he'd let you hold one end of the cable while he
drives over... just make sure you do surface shipping.
NO NO NO NO NO! RG58 is
50ohm, 3270 is 93 Ohm so RG63....
What's the BNC for, then? As far as I knew,
they only made
50 and 75-ohm BNC jacks. Or did they just use 75 ohm ones
and hope the brief blip on the TDR didn't do too much to
the signal?
Check out the planning guide, I am pretty sure its on the IBM web site,
it will have part numbers. I am pretty sure we just used 75 Ohm BNCs but
it was a long time ago, and we only had sort runs..
... If I remember I'll ask our cabling guy at work. He has been around
long enough and he might remember. For Hams with small gardens 93ohm
co-ax is supposed to be good for feeding G5RVs...
> - Dave