[1000mp] Re: 1000mp Digest, Vol 12, Issue 16

[mark kenward]

I dont think it is a problem at all.

The (my former) ft920 did the same thing.

If the swr was above 3:1 the tuner would not start-as per the manual.  Kinda 
goofy as it would start if you transmitted and bring it down to 1.5:1.

I dont understand a design which will run into a 3:1 all day with no 
problem, but wont start if swr is above 3:1.

My observations only.

73, Mark

----- Original Message ----- 
From: <1000mp-request at mailman.qth.net>
To: <1000mp at mailman.qth.net>
Sent: Monday, April 18, 2005 4:01 AM
Subject: 1000mp Digest, Vol 12, Issue 16


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> Today's Topics:
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>   1. Auto Tuner Problem (Jim Bryant)
>   2. Re: Auto Tuner Problem (Cliff Buttschardt)
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>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 17 Apr 2005 09:45:21 +0100
> From: "Jim Bryant" <jim.bryant at btinternet.com>
> Subject: [1000mp] Auto Tuner Problem
> To: <1000mp at mailman.qth.net>
> Message-ID: <000b01c54329$d6a820f0$0200a8c0 at xpjim>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> I am using a 1000MP (Not MkV) and due to a lack of real estate, use a half
> size G5RV antenna. The antenna will tune up on all bands from 7MHz up 
> using
> the 1000MP Auto-Tuner.
>
> Yesterday I made some alterations to my antenna and went to check that the
> FT-1000MP would still tune up OK.
> First of all, I cleared the Auto-Tuner memories and went through each band
> attempting to tune 2 spot freqs in each band using the TUNE button.
>
> The auto tuner had no problems on 7MHz band but on all other bands the 
> tuner
> showed HIGH SWR and shut down. The strange thing is, if I just select 
> TUNER
> but do not press the TUNE button, then hold the key down, the tuner does 
> its
> stuff and I get a very low SWR indication after about 3 seconds on all
> bands. If I now press the TUNE button to memorize the setting, it gives me
> the HIGH SWR again and shuts down.
>
> I do not remember having this problem before and wonder if anyone could
> assist me with this problem.
>
> Regards
>
> Jim Bryant M0JWB
>
> Portishead, UK
>
>
>
> ------------------------------
>
> Message: 2
> Date: Sun, 17 Apr 2005 16:04:49 +0000
> From: Cliff Buttschardt <k7rr at arrl.net>
> Subject: Re: [1000mp] Auto Tuner Problem
> To: All about Yaesu 1000mp <1000mp at mailman.qth.net>
> Message-ID: <42628921.4010209 at arrl.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Jim Bryant wrote:
>> I am using a 1000MP (Not MkV) and due to a lack of real estate, use a 
>> half
>> size G5RV antenna. The antenna will tune up on all bands from 7MHz up 
>> using
>> the 1000MP Auto-Tuner.
>>
>> Yesterday I made some alterations to my antenna and went to check that 
>> the
>> FT-1000MP would still tune up OK.
>> First of all, I cleared the Auto-Tuner memories and went through each 
>> band
>> attempting to tune 2 spot freqs in each band using the TUNE button.
>>
>> The auto tuner had no problems on 7MHz band but on all other bands the
>> tuner
>> showed HIGH SWR and shut down. The strange thing is, if I just select 
>> TUNER
>> but do not press the TUNE button, then hold the key down, the tuner does
>> its
>> stuff and I get a very low SWR indication after about 3 seconds on all
>> bands. If I now press the TUNE button to memorize the setting, it gives 
>> me
>> the HIGH SWR again and shuts down.
>>
>> I do not remember having this problem before and wonder if anyone could
>> assist me with this problem.
>>
>> Regards
>>
>> Jim Bryant M0JWB
>>
>> Portishead, UK
>>
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>>
> Jim, I've notice EXACTLY the same thing!  The rig was new to me so I
> thought I was doing something wrong.  So much so that I bought a new set
> of relays that switched in the antenna tuner.  Shortly thereafter I
> bought new changeover relay thinking that there certainly is something
> amiss.  I've not reached a conclusion on the changeover relay but
> certainly will advise if that seems to be the solution!   Cliff K7RR
>
>
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> End of 1000mp Digest, Vol 12, Issue 16
> **************************************
>
>