Nope, not a lemon as the phase noise problem eventually became discussion
topics on VHF forums.
There may have been mention of production changes but that was after I went
with a transverter.
Carl
KM1H
----- Original Message -----
From: "George Watson" <watson@sierracmp.com>
To: <amps@contesting.com>
Sent: Wednesday, February 10, 2010 11:29 AM
Subject: Re: [Amps] Icom 551 with amplifier
>I had a 551D for a long time and never heard any complaints. It looked
>pretty good on the SA also, I may have the plots around somewhere. I ran it
>barefoot, and at very reduced power into a MRF151G homebrew and it was
>fine. Maybe a lemon you had?
>
> George
> K0IW
>
> On Feb 10, 2010, at 9:21 AM, Carl wrote:
>
>> The 551 or D also has just about the worst phase noise of any rig built.
>> With strong signals it can wipe out many kHz and with an amp a lot more.
>>
>> I had one for a short time and didnt make any friends!
>>
>> Carl
>> KM1H
>>
>>
>>
>>
>> ----- Original Message -----
>> From: <Gudguyham@aol.com>
>> To: <amps@contesting.com>
>> Sent: Wednesday, February 10, 2010 9:36 AM
>> Subject: [Amps] Icom 551 with amplifier
>>
>>
>>> The Icom 551(D) transceiver believe it or not does NOT have a "ground on
>>> transmit" feature for amplifier use. It does however have an 8 vdc @
>>> 2ma
>>> output on transmit which is used in turn with an outbord transistor to
>>> power
>>> the amplifier TR switch. I am wondering if anyone knows where to get
>>> the
>>> 24 pin molex plug that mates with the 24 pin acc plug (female) at the
>>> rear
>>> of that radio. If anyone has one or knows the part # or how to find the
>>> part#, PLEASE....let me know. Thanks Lou
>>> _______________________________________________
>>> Amps mailing list
>>> Amps@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/amps
>>
>> _______________________________________________
>> Amps mailing list
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>>
>
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