[ICOM] ICOM marine/ham radios

[David J. Ring, Jr.]

Hello Ben,

The rules were written when crystal control was possible - so frequency 
instability wasn't the issue.

The issue remains - dependability.

Marine radios - including those made by ICOM - are made to standards 
exceeding Amateur Radios - simply because they are designed to protect and 
save lives.

It would be utter foolishness to compromise your life and those of your 
passengers - I've seem many ham radios - and quite a few "commercial" radios 
(SGC comes to mind) that have failed when needed during a distress.

Remember - most distress situations at sea happens when "all Hell is 
breaking loose" - the boiler fails, the generator fails, no water on deck, 
power surges, flooding, etc.

For many years, FCC and international regulations required a duplicate radio 
on large ships - for just this reason.

73
David N1EA

----- Original Message ----- 
From: "Benjamin E Lamb" <benlamb at juno.com>
To: <icom at mailman.qth.net>
Sent: Friday, June 10, 2005 12:38 PM
Subject: Re: [ICOM] ICOM marine/ham radios



Heres is another penny's worth...

Sounds kind of foolish to have two 'separate' radios; and it is.
Law follows technology.

The FCC regs were written during the Analog Vacuum Tube Era
and actually made sense at that time.

Today digital technology is capable of providing rock-solid frequency
stability (1 Hz/GHz using a disciplined oscillator) and with DSP
technology
nearly perfect filters are realized. All the technical standards imposed
by law may now be controlled by software.

The above facts will in time lead to new regs that permit
multiple-service
radios; i.e. - Amateur, Marine, Commercial, etc. I believe that
eventually
encrypted keys will be issued to licenses to permit cross-service
operation.

SOFTWARE DEFINED RADIOS will RULE !

Ben K1AUE



On Fri, 10 Jun 2005 11:19:32 -0400 "David J. Ring, Jr." <n1ea at arrl.net>
writes:
> Jerry,
>
> Your correct - except here's the bad news - FCC regulations require
> the
> "amateur radio" and the "marine radio" to be two separate
> installations -
> which can share the (1) power supply and (2) antenna.  No matter how
> you
> slice it, you can't make a dual radio except if it completely
> separate.
> Separate but occupying the same box would be an interesting argument
> though.
> However it would mean you had two independent transmitters and two
> independent receivers in one box.
>
> 73
>
> David N1EA
>
> ----- Original Message ----- 
> From: "Jerry Flanders" <jeflanders at comcast.net>
> To: "ICOM Reflector" <icom at mailman.qth.net>
> Sent: Friday, June 10, 2005 10:29 AM
> Subject: Re: [ICOM] ICOM marine/ham radios
>
>
> To be "completely legal", as you intend, you probably need two
> separate
> radios (at least, in the USA). Modding the M710 as Dick suggests
> allows its
> legal use on the ham bands by hams, but it would no longer be legal
> for
> marine freqs (mods would kill the type acceptance approval). I think
> you
> can't do it with one radio unless some mfr actually markets a legal
>
> dual-purpose radio.
>
> Jerry W4UK
>
>
> ----
> Your Moderator: Dick Flanagan K7VC, icom-owner at mailman.qth.net
> Icom Users Net: Sundays, 1700Z, 14.316 MHz
> Icom FAQ: http://www.qsl.net/icom/
>
>
----
Your Moderator: Dick Flanagan K7VC, icom-owner at mailman.qth.net
Icom Users Net: Sundays, 1700Z, 14.316 MHz
Icom FAQ: http://www.qsl.net/icom/


-- 
No virus found in this incoming message.
Checked by AVG Anti-Virus.
Version: 7.0.323 / Virus Database: 267.6.5 - Release Date: 6/7/2005