[ICOM] I did not do a good job on my 706 and AH-4 question

[Fern Rivard]

Buy a TH11DXX like I did years ago.     Fern




----- Original Message ----- 
From: "Bill Gode, Sr." <w9nhq at comcast.net>
To: "ICOM Reflector" <icom at mailman.qth.net>
Sent: Monday, June 06, 2005 2:57 PM
Subject: Re: [ICOM] I did not do a good job on my 706 and AH-4 question


> The TH7 is NOT designed to work on 17 and 12 meters - period. 
> Regardless of the tuner used and the "match" it presents to your 
> transceiver, high losses will still exist in the coax line to the TH7 
> and you will have nothing but miserable results.  The TH7 also uses 
> traps, which could blow out - provided you got enough power to the 
> antenna with the high SWR it undoubtedly exhibits.  To expect the 
> built-in tuner in an MP (or any other rig) to match a coax-fed trap 
> antenna cut for the wrong band is simply ridiculous.  This is not what 
> those tuners were designed to do.
>
> If you want to get on 17 and 12 meters with the minimum amount of 
> effort for the maximum amount of results, buy a WARC band dipole, or 
> build a simple 2-band wire dipole attached to bamboo or fiberglass 
> poles and stick it above your TH7.
>
> 73,
>
> Bill, W9NHQ
>
>
> ----- Original Message ----- 
> From: <W4ABW at aol.com>
> To: <icom at mailman.qth.net>
> Sent: Monday, June 06, 2005 3:26 PM
> Subject: [ICOM] I did not do a good job on my 706 and AH-4 question
>
>
>> Let me try this again.
>>
>> I am not trying to determine which ant to buy.
>>
>> I use now a perfectly good TH7 (yes 3 bands) and a perfectly good 80 
>> m
>> dipole and my present radio (1000MP) is a good radio and I work 
>> almost all I  hear
>> on 20,15 and 10.
>>
>> I picked up a 706 MKIIG at lower than the old price so now have 
>> another
>> radio. With my MP and TH7 I had almost no success wkg 12 and 17. 
>> Maybe the
>> internal built in tuner on the MP does not like the TH7 on 12 and 17 
>> only. It  loves
>> 20,15 and 10, only.
>>
>> My q was .. if I get the ICOM tuner, AH-4 and use it with my new 706 
>> and my
>> SUPERB (on 20,15,10) TH7 or the 80m dipole (also superb) should I 
>> expect that
>> I  could hear/work more DX on 12 and 17 ?
>>
>> The MP just does not like to play on 12 and 17 with my present TH7.
>>
>> Any better ?
>>
>> Al,   W4ABW
>
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