Search found 15 matches

by JohnGreen-SWL
Thu Sep 08, 2022 12:43 pm
Forum: General Discussion
Topic: The SULA antenna
Replies: 63
Views: 41569

Re: The SULA antenna

Spotted this preamp on a local website
Is it suitable for the SULA

https://www.giga.co.za/ocart/index.php? ... uct_id=219
by JohnGreen-SWL
Wed Sep 07, 2022 6:35 pm
Forum: General Discussion
Topic: The SULA antenna
Replies: 63
Views: 41569

Re: The SULA antenna

Posted on YouTube SULA test indoors with preamp in place of 9:1 balun
by JohnGreen-SWL
Wed Sep 07, 2022 2:15 pm
Forum: General Discussion
Topic: The SULA antenna
Replies: 63
Views: 41569

Re: The SULA antenna

Posted SULA outdoor front to back test using only feed line mod and 3m PVC mast in YouTube channel John Green-SWL
I will try preamp in place of balun tomorrow
by JohnGreen-SWL
Wed Sep 07, 2022 5:18 am
Forum: General Discussion
Topic: The SULA antenna
Replies: 63
Views: 41569

Re: The SULA antenna

Hi Andrew thanks for your input. I will remove the balun and replace it with the preamp as suggested also alter coax feed to vertical drop. I will see if I can find a local sourced LNA that is more suitable as the courier costs to here are high. The WX seems to be improving so will try the SULA outd...
by JohnGreen-SWL
Mon Sep 05, 2022 11:21 pm
Forum: General Discussion
Topic: The SULA antenna
Replies: 63
Views: 41569

Re: The SULA antenna

SULA-JHG.jpg I have just completed my SULA antenna which at the moment is restricted to indoor use due to the WX at the moment but we are at the start of Spring :) I am using 2.5mm stranded copper wire as suggested a commercial 9:1 balun and for the resistor a piece of veroboard (stripboard) in an ...