[ICOM] 551D vs 706 for 6m

Phil Krichbaum vailphil at sopris.net
Thu Feb 5 14:31:38 EST 2009


    Sensitivity probably better on the 706 too.
    N0KE

Adam Farson wrote:
> The 551 series also has a rather noisy PLL synthesiser; the DDS in the 706
> series has much lower phase noise.
>
> Cheers for now, 73,
> Adam VA7OJ/AB4OJ
>  
>
> -----Original Message-----
> From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On
> Behalf Of Phil Krichbaum
> Sent: 5-Feb-09 04:55
> To: ICOM Reflector
> Subject: Re: [ICOM] 551D vs 706 for 6m
>
>     The 551D is a ~30 year old rig and prone to a frequency display failure
> for which there are (to my knowledge) no replacement parts available. 706 of
> any flavor is probably a better  6m rig and also covers from 160m to 2m or
> 432 depending on model. I even made a few 2m EME QSOs with mine and a 160w
> brick and single yagi on CW, not WSJT! 
> They are prone to front end overload but so was the 551. I worked a lot of
> DX with my 551A and 600w amp. NB probably better on the 551.
>     Phil N0KE DM69em
>
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