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Topics - Jon_Garfio

1
Antennas / Ultralight dipole for 10 mhz
April 11, 2018, 03:50:49 pm
Here you are a dipole that I just made to bring It to mountain into the backpack.

I try to get performance with ligher weight.

The video is in spanish lenguage but if somebody needs any info I don't have any problem to share It.

https://youtu.be/c5g7npwVeXo

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2
Morse Code / Activation "Vértice Geodésico"
February 19, 2018, 12:12:11 pm
Here you are my last activation past saturday. I enjoyed so much.

You can see in from of the summit Montserrat mountains, near Barcelona.

https://youtu.be/sqOY8bjD1qs

Tnx for watching.



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3
Batteries & Solar / And the winner is...
June 29, 2017, 07:58:30 am
Spain is diferent.




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4
Classifieds / Wanted: Mountain Topper
June 17, 2017, 06:00:01 am
Hi everyone!
I'm interesed in purchase a LNR Mtr3b.

If some guy wants to upgrade to 5b and want trade his mtr3b, please, think about me.

I expect offers.






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5
Antennas / Delta loop home made for 50 mhz
June 03, 2017, 08:32:32 am
I want to share with everyone this antenna that I made past week, tired of no good signals in 6 m band.

The antenna cost  3-4 euros, no more, and I expend about 1 hour to built it.

The antenna in my habitual place.



This is the original idea that I copy to make it.


The item is basically a 6.10cms triangle of wire (I use a 1.5mm but with 1mm is enought).
To tunning the antenna we can use a unun or use a bit of 75 ohms coax (tv coax cable standard), exactly a 99cms for 50 mhz.

This type of antennas have two problems, doesn´t work if have metal parts near and if We mount it at least 1/2 wave leght between the ground, in this case 6m band, minimun 3m between antenna and ground.

First of all, I mounted it into my flat and It was horrible, no rx and a ot of SWR...

I use the antenna without tunner, SWR is 1:1 in all the band, perfect, simple and good performance. All that I can heard, I can worked.




This is the results of my log in two hours.



The delta loop can works vertical or horizontal, if you fit the apex up and corner feed is a vertical polarization.
Here you are the scheme about polarization: