Re: [amsat-bb] Bogus data on the TS-2000???

[Kohjin Yamada <jr1ede@xxxxxxxxxxxxxxx>]

Marc,

Sad to hear the poor performance spec of Kenwood TS-2000.
Then I must consider Icom IC-910 for my new rig.
Don't you have such a comparison review for IC-910?
(I hate Yaesu, sorry)

Thanks for the interesting post.

Kohjin - JR1EDE

At 16:52 01/08/26 -0500, Marc Holdwick wrote:
>All,
>
>Disclaimer:  I don't own either radio...  and I do happily own other radios
>from both Kenwood and Yaesu.
>
>According to the ARRL reviews the worst case intermodulation products are as
>follows:
>
>TS-2000:
>3rd order = -22dB
>5th order = -36dB
>
>FT-847:
>3rd order = -28dB
>5th order = -46dB
>
>5th order products are a little more indicative of relative "spatter"
>performance.  3rd order products fall closer to and often within the
>intended transmit signal spectrum.
>
>Now while the wording "splatter up and down the band" may be a bit harsh,
>the fact is that the TS-2000 is about 10dB worse.  10dB is 10 times the
>splatter power!
>
>For many uses on the VHF and above bands this isn't the end of the world,
>but it could be noticeable when bands are crowded (during contests or
>openings) or on HF.
>
>73,
>
>Marc - N8KWX
>
>
>on 8/26/01 3:51 PM, Ken Wendel at kenwendel@home.com wrote:
>
>> John, I agree, I think the data is not real.  If you look at the two tone IM
>> performance of the FT847 vs. the TS2000 that was published in QST in August
>> 98 and July 01, respectively, you can see the the worst case 3rd order IM
>> product for the TS2000 is ~ 6db worse than the FT847 in the VHF/UHF band.
>> This is still a far cry from "splatter up and down the band".  In all other
>> significant cases the TS2000 outshines the FT847.
>> 
>> ----- Original Message -----
>> From: "John Morley" <amsat@endeavour-usa.com>
>> To: <amsat-bb@AMSAT.Org>
>> Sent: Thursday, August 23, 2001 10:51 PM
>> Subject: [amsat-bb] Bogus data on the TS-2000???
>> 
>> 
>>> Hello,
>>> 
>>> Several days ago, a frequent contributor(?) to the list alleged that the
>>> Kenwood TS-2000 had a
>>> problem with "horrendous IM products", and that when operating one,
>> "You'll
>>> splatter up an {sic}
>>> down the band". Owning several of these radios, I was intrigued by these
>>> comments, and did a little
>>> bit of research on the subject. As I suspected, I was not able to find any
>>> information to support this
>>> allegation. In fact, the only functional deficiency related to this radio
>>> that I could find was the
>>> much reported AO-27 downlink birdie...... So, I ask the list, does anyone
>>> else know anything about
>>> "horrendous IM products" in the TS-2000, or was this just a cheap shot at
>>> Kenwood by someone biased
>>> toward the FT-847???
>>> 
>>> Thanks,
>>> 
>>> John
>>> 
>>> ----
>>> Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
>>> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
>>> 
>> 
>> ----
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