[ICOM] eHam 2720 Reviews

Gary Pearce KN4AQ kn4aq at arrl.net
Thu Oct 6 15:53:29 EDT 2005


At 10:36 PM 10/2/2005, Mac, K2GKK/5 wrote:
>If you want .25 uV sensitivity over broad band,
>you   WILL   get intermod.  Wideband coverage
>seems to be what  MOST  buyers want. ...

>Yayhoo and Kenmore are all the same.
>
>Mac, K2GKK/5

They are not all the same.

The Icom 2410 (circa 1995) was particularly good on intermod.  The Kenwood 
733 was pretty bad.  Standard's C5900 was very immune.

Of today's radios, Yaesu's 8800/8900, based on technology from the Standard 
5900, is also a good performer.

The idea that a wide-band receiver must suffer terrible intermod is a 
myth.  I wouldn't make a repeater receiver out of them - sure you'll do 
better with a good receiver behind a tight filter.  But Icom could have 
done better with the 2720.

The 2720 does have some nice, unique features.  If the intermod you get is 
mostly from pagers, a PAR notch filter should help a lot.  It goes in the 
antenna line, and notches a couple of common pager channels while letting 
the rest of the spectrum through.

73,
Gary KN4AQ

__________________________________________________________________________
        Gary Pearce KN4AQ        editor, SERA Repeater Journal
        Cary, NC                 www.sera.org
        919-380-9944             kn4aq at sera.org
        kn4aq at arrl.net
         AIM: KN4AQ Radio.  Yahoo: KN4AQ
         (send e-mail to be put on my "buddy list")




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