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Re: [Yaesu] FT1000D broadcast

To: yaesu@contesting.com
Subject: Re: [Yaesu] FT1000D broadcast
From: Jan Erik Holm <sm2ekm@telia.com>
Date: Sat, 09 Oct 2004 19:19:30 +0200
List-post: <mailto:yaesu@contesting.com>
The noise blanker IMD problem will cause 3:rd order IMD,
this is not the case here.
This problem is poor 2:nd order IMD performance due to
bad PIN diodes in the bandpass filter switching.
Fix is to replace those PIN diodes with better ones.
Many people have used HP5082-3081 diode however it is
I have used the diode BA479, very low cost and works
perfect. Ofcourse there are other PIN diodes on the
market that can be used.

73 good luck / Jim SM2EKM

Robin Thompson wrote:

In message <000f01c4ad99$602697c0$60c8eb3e@Willem>, Willem Braeckevelt <on5jy@village.uunet.be> writes

Dr oms ,
Any help on my FT1000D i have in evening hours strong broadcasting interference on 17m 30m and little on 20m ?
If i put 40m dipole on 20m 17m 30m bands also broadcasting come up?
Any idea whats wrong on receiver?

73's Wim ON5JY

Sounds like it could be a noise blanker/ IMD problem Wim.
Have a look at some suggested mods for the FT1000 - this is a really useful site !


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