[OZAPRS] 10.147 MHz antenna

Glen English VK1XX glenlist at pacificmedia.com.au
Sun Dec 10 17:47:28 AEDT 2017


Hi Peter

Good numbers !

was the feedpoint short-open-load compensated, or is this measured down 
some coax, if so , how long approx ?


On 10/12/2017 4:05 PM, Peter Dodd wrote:
> Hi Andrew,
>  1.34:1 at 10.147 MHz
> R= 57 Ohms
> X=13.7 Ohms
> Dip in X is a bit higher in frequency but can't shorten antenna 
> without cutting.
> A bit more work on earthing connections required
> Peter
>
>     ----- Original Message -----
>     *From:* Andrew Rich <mailto:vk4tec at tech-software.net>
>     *To:* Australian APRS Users <mailto:ozaprs at aprs.net.au>
>     *Sent:* Saturday, December 09, 2017 9:49 AM
>     *Subject:* Re: [OZAPRS] 10.147 MHz antenna
>
>     Is your antenna grounded
>
>     Have you done vswr sweeps
>
>     Sent from my iPhone
>
>     On 9 Dec 2017, at 8:21 am, Peter Dodd <dodd.pc at bigpond.com
>     <mailto:dodd.pc at bigpond.com>> wrote:
>
>>     Hi,
>>     Diamond HF30FX mounted on Rhino Rack on canopy of my DMax.
>>     With 30W tx heard by VK2ZZM and and VK2OL-5 this morning at about
>>     900 km
>>     Ignore mycall report that is my rx and multipsk software.
>>     $65000 and counting for mobile antenna mount
>>     Regards
>>     Peter VK7KPC-15
>>
>>         ----- Original Message -----
>>         *From:* vk4tec at tech-software.net
>>         <mailto:vk4tec at tech-software.net>
>>         *To:* 'Australian APRS Users' <mailto:ozaprs at aprs.net.au>
>>         *Sent:* Friday, December 08, 2017 8:36 PM
>>         *Subject:* [OZAPRS] 10.147 MHz antenna
>>
>>         Hello
>>
>>         I can go up but not out
>>
>>         Looking for suggestion for HF vertical for 10 MHz please
>>
>>         Andrew
>>
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