[Elecraft] OT: ICE still functioning?

[WILLIS COOKE]

I am not the world's foremost authority, but I will give it a shot.

 * Whose radio am I protecting, mine or the other guy's?
Your radio

* What am I protecting it from?
Humongous big signals like occur when a Multi-Multi contest station has a line 
up of six stations, all running 1.5 KW along with a $100K or more antenna farm, 
all transmitting at once and enough RF to make the hair on your arms tingle.  
Maybe even a Field Day Site where some are running other brand radios.  If you 
were in this category, chances are you would already know the answer.

* Why doesn't the radio take care of this problem itself?
Mostly, it does not need to.  Only those who really need it will want to pay the 
bucks and the weight and size penalties for the extra 80 or 90 dB of isolation.  
If you live next door to the Multi-Multi station above the best strategy is to 
unplug your radio and go join them for the contest.  If you don't have the 
operating skills volunteer as a waiter or assistant something or other.  They 
are probably nice guys and will welcome the help.  If not they will welcome your 
cooperation.

* What is transmitted phase noise and what do I do about it?  Basically it is 
interference.  I can't adequately explain it, but if you have a bought a K3 or a 
K2 you have done what you can.

* Where does the K3 stack up in the world of transmitted phase noise
in amateur radio equipment? (I believe the answer is that the K3 is very
quiet and that I am more apt to be to victim, rather than the source, of
this problem]

I believe you are correct!

* Other relevant stuff I don't know about

Now there is a subject.  Maybe Wayne and Eric can write a book someday when they 
finish designing and building good radios.  I would write the book myself, but I 
am not even sure what is relevant, much less what you don't know about.

Willis 'Cookie' Cooke 
K5EWJ 




________________________________
From: gary bartlett <garybartlett at accesswave.ca>
To: elecraft at mailman.qth.net
Sent: Thu, April 28, 2011 11:23:52 AM
Subject: Re: [Elecraft] OT: ICE still functioning?

            In the interest of reducing interference from/to our K2/sK3s and
the equipment of our friends at multi-transmitter events, I'd like to see
the topic taken one step further:  a short explanation of why the need for
band pass filters with Elecraft equipment exists in the first place.  



*        Whose radio am I protecting, mine or the other guy's?

*        What am I protecting it from?

*        Why doesn't the radio take care of this problem itself?

*        What is transmitted phase noise and what do I do about it?

*        Where does the K3 stack up in the world of transmitted phase noise
in amateur radio equipment?  (I believe the answer is that the K3 is very
quiet and that I am more apt to be to victim, rather than the source, of
this problem]

*        Other relevant stuff I don't know about



            Can anyone point to a source of basic operational application of
band pass filters explained at this level and with the emphasis removed
about the insides of the filters themselves?



            73,

            Gary, VE1RGB



                        



-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Ron D'Eau Claire
Sent: April 28, 2011 12:40 PM
To: elecraft at mailman.qth.net; 'Rick Stealey'
Subject: Re: [Elecraft] OT: ICE still functioning?



Rick, that has never been true in practice in the 10+ years I've
participated in this reflector, nor can I find any mention of that in the
official list guidelines at www.elecraft.com



IMX, anything related to Ham radio that someone owning an Elecraft rig might
be interested in is welcome for discussion here. 



73, 



Ron AC7AC



-----Original Message-----



With all due respect guys...........

If it is OT it BY DEFINITION doesn't belong on this reflector,

no matter how interesting, no matter that everyone in the ham

world is interested in the fascinating topic.  No matter that

the participants on this reflector are some of the most

knowledgeable people on earth (which they are), and also

the nicest.  If it isn't Elecraft related it doesn't belong here.

Eric has to come on here periodically and remind us all.

CME, ICE are not Elecraft topics.



There, I feel better now.



Rick  K2XT



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