[Premium-Rx] Problem with my long-wire with balun 4:1

Fernando rumbek at gmail.com
Mon Apr 20 04:26:39 EDT 2020


Hi Joseph, 

My guess is your balun is not working as it should.
The LED lights at home lighting indicate that there is RF coming back through your coax, when you transmit. I believe that, in fact, RF is not getting past your balun and that you are radiating with your coax.  
In my view, there are several possibilities: mechanical problem (LW and balun are not making the necessary contact) or fried balun, which is rare but happens now and then (i.e. if at some point there has been a very heavy thunderstorm with lightning falling nearby).

Just my 2 cents. Good luck my friend, and best wishes to you and yours

73

Fernando EA4BB

 

> El 20 abr 2020, a las 9:10, joseph.bozzer at skynet.be escribió:
> 
> I don’t understand what’s happened with my 80m long-wire since I installed a balun 4:1 on it
> 
> In 20 meter i’ve a SWR <1,5
> In 40 meter i’ve a SWR 1,5 =< 2 
> In 80 meter i’ve a SWR <5
> 
> With the ATU of my FTDX5000 I put all them to 0 but I have a big problem:
> - On 40 and 80m all is ok .. I’ve very good results in transmission
> - But on 20m it’s a disaster … some LED lamps in my house start to flash at the rate of my CW and the monitoring sound on my FTDX5000 becomes very raucous
> 
> It's impossible to use my Long-wire in 20m
> What's is happen? ... I remind you that without ATU the SWR is <1.5 over 20m
> 
> 
> 
> 
> 
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