[OZAPRS] 10.147 MHz antenna

Peter Dodd dodd.pc at bigpond.com
Sun Dec 10 18:23:13 AEDT 2017


Hi,

measured down approx 4m coax using rigexpert AA-520.

Didn't get a Site Master as retirement/VR gift

Regards

Peter
----- Original Message ----- 
From: "Glen English VK1XX" <glenlist at pacificmedia.com.au>
To: <ozaprs at aprs.net.au>
Sent: Sunday, December 10, 2017 5:47 PM
Subject: Re: [OZAPRS] 10.147 MHz antenna


> 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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>
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