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[TenTec] IMD Measurements - Yaesu/Inrad vs Orion

To: tentec@contesting.com
Subject: [TenTec] IMD Measurements - Yaesu/Inrad vs Orion
From: Bill Tippett <btippett@alum.mit.edu>
Reply-to: tentec@contesting.com
Date: Thu, 23 Dec 2004 16:08:28 -0500
List-post: <mailto:tentec@contesting.com>
AA4NU wrote:
>OK, Bill ... using your 'facts' ... for the SSB viewpoint ... what's
the real difference amount to?  (Use of the #762 reflects CW only)

ARRL:
"The real problem shows up during contests when signals
may be every 0.5 kHz (for CW) or every 2 kHz (for SSB
contests)."

Spacing         ARRL MkV        ARRL MP         RSGB MP
2 kHz           79 (+10)        71 (+2)         71 (+3)

Comparable RSGB data for Orion's 2400 Hz filter at 2 kHz spacings
is 89 dB.  RSGB did not test the optional 1800 Hz filter but
Sherwood measured 93 dB at 2 kHz.


>Still odd, how many posts include the word "defective" when describing the Orion, or one of it's related parts <in this case, the CW filter>. Naaaa ... there's no QC problems ... 95% OK is just fine. B-(

        Since the introduction of the FT-1000D in the late 80's,
what percentage of the FT-1000/D/MP/Mkv/Field have had key clicks?
And what has the manufacturer done to correct these?

Answer: 100% and NOTHING AT ALL...it's the users problem (and the
rest of us that have to listen through them all the time).

73, Bill W4ZV


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