[OZAPRS] HF antenna on car - sorted
vk5zm at bistre.net
Tue Dec 5 10:58:33 AEDT 2017
Thanks for sharing that URL....
He is very wise and had my attention from;
"There are *no* viable methodologies to achieve positive gain with an HF
So true. I actually tested one of the first prototypes of that Stealth
Telecom loop that George made, funny he came to the same conclusion.
On 5 December 2017 at 09:59, Glen English VK1XX <
glenlist at pacificmedia.com.au> wrote:
> yea, essentially, RF wise, without strap = without ground
> which is nearly exactly like without the negative lead of a light bulb
> connected = no light...
> Dont expect miracles with a base loaded 1.4m whip.
> Expect efficiency to be around 10%
> rather than keep writing, Andrew, there is this compendium online, worth a
> read :
> it's pretty right. Alan is a good engineer with a practical understanding.
> On 5/12/2017 10:14 AM, Andrew Rich wrote:
>> Without strap - 5.06:1 at 10.147 MHz
>> With strap - 1.16 : 1 at 10.147 MHz
>> Now we are cooking with gas
>> OZAPRS mailing list
>> OZAPRS at aprs.net.au
> OZAPRS mailing list
> OZAPRS at aprs.net.au
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