[Heathkit] How about the SB-220?

[Carl]

I disagree.

At HF the 5th is usually burried in band, phase or speech compressor crud.

On a typical underused 10M and above then the 5th and even farther out come 
into play.

The 3rd to me is important when trying to fit into a small available hole on 
the band. With typical rice box 3rd in the mid 20's and then amplifed even 
by an 8877 its not a joy most of the time.  Note that Im rarely on HF SSB 
except for DX chasing and prefer CW and the civility of AM.

Carl
KM1H



----- Original Message ----- 
From: "Paul Baldock" <pbaldock at verizon.net>
To: "Carl" <km1h at jeremy.mv.com>; <heathkit at mailman.qth.net>
Sent: Sunday, August 23, 2009 12:42 PM
Subject: Re: [Heathkit] How about the SB-220?


> At 09:31 AM 8/23/2009, you wrote:
>>And the more important 3rd?
>
> - 30dB down to -34dB
>
> However I think the 5th is more important as it is out side the
> typical bandwidth and contributes the most to interference. The third
> contributes more to in band distortion
>
>
> - Paul
>
>
>
>>Carl
>>KM1H
>>
>>
>>----- Original Message ----- From: "Paul Baldock" <pbaldock at verizon.net>
>>To: "Carl" <km1h at jeremy.mv.com>; <heathkit at mailman.qth.net>
>>Sent: Sunday, August 23, 2009 11:57 AM
>>Subject: Re: [Heathkit] How about the SB-220?
>>
>>
>>>At 08:26 AM 8/23/2009, Carl wrote:
>>>
>>>>Not all rigs show an IMD increase at reduced power., some actually
>>>>increase. What sort of levels do you see with a spectrum analyzer?
>>>TS2000:
>>>-50dB fifth order at 14.2MHz 100W PEP
>>>-60dB fifth order at 14.2MHz 80W PEP
>>>I don't have results recorded for 90W PEP
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>
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