[R-390] New Subscriber with questions

[Todd Bigelow - PS]

Hi Tony -

Congrats on the 'new' rig. Here are a couple thoughts:

<snip>

> First and foremost in my mind is the question regarding
> what is the normal way of dealing with the J108 balanced
> antenna input jack?  I have nothing like that in my inventory,
> in fact I don't even recall ever seeing anything that will
> mate with it (although obviously there is!).  Is there an
> adaptor (that is affordable) to adapt it to the standard
> PL259?

Easiest approach(next to paying a lot of money for an adapter)is to make
up a jumper with an IBM network connector on one end and the plug or
socket of your choice on the other end. The IBM 'twinax' network
connectors are available for somewhere around $2-$3 and you can run it
out to a PL-259 on the other end for a switchbox connection if you wish,
or directly to the antenna.

> Was there/is there a cabinet enclosure for the R390 or is
> rack mounting the only way to go?  This one has the dust
> cover on the top, etc...no feet on cabinet...(suggestions)?

I'd suggest an old Air Force surplus rack if you can find one. They have
a squirrel-cage blower at the bottom and a more typical fan on top for
exhaust. Not only will a rack keep your rig cooler, it's also a good
place to stash the R-390A and SP-600, as well as a speaker and other
goodies.

> A quick check shows that all controls/meters work, and I am
> assuming, "as they should".  Are there any recommendations
> (initial DO's and DON'Ts for a newbie owner)?

Don't use the 'standby' mode. I'm sure there are other things as well.

> While in the USAF, I never was fortunate enough to get the R390
> at my "position", although they began arriving shortly before
> I got out (1961).  So it has taken 40+ years for me to "UPGRADE"
> from the beloved SP-600, but I finally made it! 8-)

Don't muster out the SP-600 - it comes in handy as a band cruiser for
fast searches and the like. It's also more justification for that rack!

Welcome to the group, there is an incredible wealth of information
available at your fingertips. Enjoy the rig, and keep us posted on your
progress.

73 de Todd/'Boomer'  KA1KAQ