[TenTec] IMD Measurements - Yaesu/Inrad vs Orion

Bill Tippett btippett at alum.mit.edu
Thu Dec 23 16:08:28 EST 2004


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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