[Elecraft] Re： marine frequencies and k3

[juergen]

Hi Johnny

The K3 would also have unacceptable IMD or occupied bandwidth standards making its use on the marine bands unethical.

I used one of my K3's on a sailboat, guess what happened? 

I was not transmitting on the marine bands but some other nearby yacht operator was checking in on a 8mhz cruising race schedule getting yacht positions. I realized this after I got home. The net was at the time I was operating on 14mhz. I know the operator who runs the net and his yacht was berthed 5 yachts down from where I was operating from.

 I smelt this awful smell and shut the  K3 down immediately.  When I got home and investigated the smell  I found that my 8mhz trap  was burnt and toasted.  The trap was overwhelmed by the nearby transmitter on  8mhz. The PCB tracks were not damaged but were all badly burnt or brown. I rebuilt the trap and used the K3 without it for a while. I noticed no IF break through.

I may order a new KANT PCB assembly in the future to try and restore my K3 back to its new condition.

So K3 operators beware of operating near mariners especially at night where 8 mhz might be used for such things as pactor! You may well think your K3 is  possessed by  the devil or has had some sort of parasitic oscillation.

73
John

--- On Tue, 3/22/11, Johnny Siu <vr2xmc at yahoo.com.hk> wrote:

> From: Johnny Siu <vr2xmc at yahoo.com.hk>
> Subject: [Elecraft] Re：  marine frequencies and k3
> To: "Jim Wiley" <jwiley at alaska.net>, "George A. Thornton" <gthornton at thorntonmostullaw.com>
> Cc: Elecraft at mailman.qth.net
> Date: Tuesday, March 22, 2011, 10:47 PM
> Also for practical reasons, the
> popular marine bands is near to the I.F. of K3.  
> Using K3 for marine communication seems not quite
> appropriate.
> 
>  cheers, 
> 
> 
> Johnny VR2XMC 
> 
> 
> 
> 
> ________________________________
> 寄件人﹕ Jim Wiley <jwiley at alaska.net>
> 收件人﹕ George A. Thornton <gthornton at thorntonmostullaw.com>
> 副本(CC) Elecraft at mailman.qth.net
> 傳送日期﹕ 2011/3/23 (三) 1:30:12 PM
> 主題： Re: [Elecraft] marine frequencies and k3
> 
> 
> Unfortunately, even if the K3 could be made to operate on
> marine 
> frequencies, unless if is type accepted by the FCC for that
> service, it 
> is still not legal to use it, whether or not you have a
> license.  As far 
> as I know, the K3 could not pass the acceptance requirement
> in it's 
> present form.  The primary objection would have to do with
> VFO frequency 
> control, which is not permitted on the marine bands. 
> There may be others. 
> 
> 
> It is legal to use a marine SSB transceiver on the ham
> bands, where type 
> acceptance is not required, but the reverse is not true. 
> Wayne or Eric 
> can amplify this if they wish, but that is the gist of the
> argument.
> 
> 
> - Jim, KL7CC
> 
> 
> 
> George A. Thornton wrote:
> > <snip> 
> >
> > I was trying to figure out if it was possible to
> legally communicate
> > with her using my K3 from home.  
> >
> >  
> > <snip>
> >  
> 
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