[Orion] Re: Orion in ARRL 10M

[Robert & Linda McGraw K4TAX]

WHY!  Knowing the fact that it uses high speed devices, hence those
approaching RF bandwidths, I'm surprised to learn this.  I'd thought more
evaluation into RF related faults would or should have been done.  After
all, it is supposed to operate in an RF environment.  Just how much is yet
to be established.  There are requirements with regard to FCC radiation
exposure to humans and etc.  Of course, the various cables and interfaces to
the outside world must be taken in to account as well as they can contribute
to these ills.

>From my background the typical evaluation process is to connect a 1 meter
cable to all inputs and outputs and expose the system to some value of RF (I
forget the uV numbers we used) over a reasonable spectrum.  If it burps then
investigation as to which in/out is causing the grief and it gets fixed.
And too, there's various levels of problems observed such as:
(a) Minor mis-operation observation only.
(b) Fault with normal recovery not requiring the operator to make
corrections.
(c) Major fault with processor lock up but normal reset establishing correct
operation.
(d) Major failure related to component failure requiring replacement.

It is those "c" and "d" level items that must be avoided at all costs.
Based on what I've read lately, there's lots of "c" level concerns.

73
Bob, K4TAX


----- Original Message -----
From: "john ke5c" <ke5c at hot.rr.com>
To: "Orion contestingcom" <orion at contesting.com>; "Orion yahoo"
<orion565 at yahoogroups.com>
Sent: Monday, December 15, 2003 10:59 AM
Subject: Re: [Orion] Re: Orion in ARRL 10M


> > Occasionally get some RF in the shack when the antenna is pointed NW
over
> > the shack and linear on.  Noticed that when transmitting and using VFO A
> > only that the B column of lights flickered with voice peaks!!!!!!!
>
> i've noticed this too.  the orion is more rf sensitive than my prior rigs,
> but i think that's pretty much to be expected.
>
> 73, john
>
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