John;
There is an extremely small reed relay, I believe, on the lo-pass filter
board. The transmitter gets switched by a pin diode. Rarely do I hear of
them going bad by getting intermittant. They tend to stick closed, then
burn up the front-end next time you transmitt. I suppose it could. Try
switching bandwidth and see if a filter socket is bad first. Good
hunting.
Dave
WA0ZZG
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> Today's Topics:
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> 1. FT1000D (John Barber GW4SKA)
> 2. Re: FT1000D (James Colville)
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> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 18 Feb 2010 14:59:47 -0000
> From: "John Barber GW4SKA" <ska@bartg.org.uk>
> Subject: [Yaesu] FT1000D
> To: <yaesu@contesting.com>
> Message-ID: <5B2F656426F44DCA9D179A16D45CFC0E@Shack>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> One of my FT1000Ds has an intermittent receive fault. The gain drops by
> 60db
> or more when dekeyed. It will come back to full gain maybe after the next
> TX/RX or maybe not for some time.
>
> Relay contacts? Any guidance would be appreciated.
>
> Thanks,
>
> John GW4SKA
>
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Thu, 18 Feb 2010 07:32:20 -0800
> From: James Colville <jimw7ry@gmail.com>
> Subject: Re: [Yaesu] FT1000D
> To: John Barber GW4SKA <ska@bartg.org.uk>
> Cc: yaesu@contesting.com
> Message-ID:
> <f04018a61002180732t6105cce1w3af1f50703e1ab99@mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> The FT-1000 uses a reed relay for T/R switching.
>
> 73
> Jim W7RY
>
>
>
>
> On Thu, Feb 18, 2010 at 6:59 AM, John Barber GW4SKA
> <ska@bartg.org.uk>wrote:
>
>> One of my FT1000Ds has an intermittent receive fault. The gain drops by
>> 60db
>> or more when dekeyed. It will come back to full gain maybe after the
>> next
>> TX/RX or maybe not for some time.
>>
>> Relay contacts? Any guidance would be appreciated.
>>
>> Thanks,
>>
>> John GW4SKA
>>
>>
>>
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> End of Yaesu Digest, Vol 86, Issue 9
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