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g.nutsey
13 giu 2018

Mounting Baby Loop On Side of House

5 commenti

Hi,

 

I've had a baby loop before but I've always used it at ground level about 6 feet of the ground.

 

I want to mount my next one on the side of my house above the apex of the roof. I spoke to my local dealer and they advised against it because the loop uses ground capacitance for tuning.

 

Is this correct? I don't think it is.

 

If it can be mounted above my roof, how high does it need to be above the apex (the pointy bit of the roof :-) ) ?

 

Thanks

 

Glenn

M1AQO

Richard Hubbard
13 set 2018

Hi I mounted mine around 2m csh above the roof.

jose.morollon
feb 5

Hi.

Please Richard, Can you expand your before answer about positioning the Baby Loop antenna?

I am going to install it on the side of my roof near the apex of it, and I do not know what will be reference point to measure the 1,5 Mts. minimum and 2,5 Mts. maximum height.

a) with respect to the ground or

b) with respect to the roof, as the antenna is going to be installed above the apex roof.

 

Thank you for your answer.

 

 

 

 

 

 

Richard Hubbard
feb 5

Hello,

 

I have my Baby Loop mounted around 1.5m to 2m with respect to the roof. Hope that helps. The mounting position above the apex in the photo looks ok to me, if the SWR is a little high increase the hight.

jose.morollon
feb 5

Many thanks, Richard.

tashajiimenez
lug 4

 

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  • gm7eey
    5 giorni fa

    Anyone suffer from poor tune on 20m when the Midi loop gets wet? When I build this one I noticed that the Gamma match tubing had a badly seated cap, when I removed it to inspect a few drops of water came out of the tube. Am going to take the loop down today and inspect this again as its been quite wet recently but am interested to know if this is a known issue. This is a used loop and as far as I know it was stored indoors prior to my assembly and when I did the build, the loop was only outdoors for about 2 days before it went on the mast. Was rather surprised to see the water and trying to tun last night when raining, 20m was nothing below 2.1, today now its dry kinda back to normal at 1.6 ish. Real concerned that water is getting into the co-ax section and thats bound to be bad news. 73s Pete
  • Robert Carswell
    ott 23

    Hi I have a brand new Baby Loop and have a problem straight away. After assembly I went through the installation First Turn On process. Set the loop type and moved to using the star key and setting the frequency as advised to 7050 pressing the enter key looks as though it will do something but the ATU just shuts down and restarts. I have attempted the Auto Detect routine and it fails with same issue the ATU just shuts down and restarts. The display shows 18000 khz with a SWR of 1.6 which is presumably after the factory tested the loop. The firmware is 3.29 and the board is 1.06.0663. I have downloaded the firmware again as per the manual and it doesn't appear to do any upgrading as presumably it already knows the firmware installed on the ATU is version 3.29 I have checked the twin core cable I am using with a 12volt battery and it checks out with the volt meter. I have checked the antenna cable which is mini 8 and that checks out. I have attempted the procedure for manual testing of the motor control as per the manual on page 70 entering the frequency of 7050 pressing enter which shows TEST: Duty 21% 7050khz SWR: 9.9 Pressing 9 to open the loop just shuts down and restarts the ATU During the manual testing I have checked across the motor cable plug on the rear of the ATU and there is no voltage at the terminals during any of the setup procedures or the manual testing of the motor control. This is a brand new never used before Baby Loop and fails at the first turn on stage. I have contacted the supplier but being the weekend there is no one available to help Any one any idea of the issue?
  • jeffsmithchicago
    set 19

    I received the Baby loop last week and assembled it. After setting it up a few feet away from the desk I decided to connect it and run some tests to give it a shake down. It worked perfectly considering it was only a few feet away from my radio desk and then it just seemed to die with no error messages or anything. The loop is "open" all the way and will not move at all. When manually entering a frequency it goes thru the normal message of tuning but does nothing else, no motor sound or anything. Any advice to get me going in the right direction?

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