[OZAPRS] Finally got the HF mobile working in the 4WD- Off to Alice28th May

[David and Justine Olsen]

I had some problems getting the set to transmit at anywhere near full  
power (IC706MkIIG).  Nissan Patrols are renowned for bad earthing,  
chassis to cab etc. So I've been installing lots of earth including 1  
inch wide copper strap here and there. It seemed to improve things no  
end. I've had VSWR below 2 according to the transmatch meter, but  
suspect erroneous reading due to bad earth. This morning with the  
same transmatch and earth installed I was able to tune to less than  
1.2:1 and low and behold the transmitter now transmits at full power.  
The transmatch will not be up to travel though, so I either need a  
small robust whip tuner or a new HF antenna for 40m. I am currently  
using a VKS737 whip with the wander lead in the 8022KHz socket and  
matching with the transmatch. I wonder would it be easier just to  
make some sort of UNUN transformer, since I only intend to use 40m at  
this stage?

David



On 20 May 2009, at 06:55, larry wrote:

> Hi David
>
> My HF/VHF igate is operational 24/7 on 30 & 40m.  Pse make sure you  
> use the recommended (HF) path of GATE,WIDE2-1 -  the GATE is  
> necessary to ensure that you are actually gated to the internet.
>
> Have a great trip.
>
> Cheers
>
> Larry vk5ly
> ----- Original Message ----- From: "David and Justine Olsen"  
> <davejust at bigpond.net.au>
> To: "Australian APRS Users" <ozaprs at aprs.net.au>
> Sent: Tuesday, May 19, 2009 6:17 PM
> Subject: [OZAPRS] Finally got the HF mobile working in the 4WD- Off  
> to Alice28th May
>
>
>> Well what a long haul it has been but we got there. I got the VHF   
>> mobile working first (VK4MDX-9) and now the HF mobile VK4MDX-15.
>>
>> It hasn't been easy on VHF to get Tinytrack 3 to do what was  
>> needed,  but we got there. On HF strangely it was easier.
>>
>> I am off to Alice Springs on 28th May and will be in the Simpson   
>> Desert for some weeks.
>>
>> Any one running APRS on 40m look out for me. Will take another  
>> test  drive tonight.
>>
>> David VK4MDX
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