Five minute portable 40m GP antenna
#2
John

I also use a squid pole for some of my portable operation although mine attaches to either the caravan front back via permanently attached vertical tubes. I can also attach it to the back of the twin  cab via an adapter to the L-mount normally used to hold a helical HF whip while travelling.  I use the vehicle chassis (or van chassis) as the ground plane rather than radials along the ground. I will take some photos of the L-bracket arrangement next time I have it in place and add them to this topic. I already have some van mounting photos but will need to locate them amongst the multitudes.

My squid pole is of the 7M variety so the 7 metres of wire down the middle doesn't make the 1/4 wavelength on 40 metres but via a 4:1 un-un at the base and an LDG Z100 tuner, it will match on all bands 80 metres upwards. It even works on 6 metres.. I have a switched toroidal inductor (or another conventional cylindrical one) that I can include at the bottom that allows me to match on 160 metres too.  Not efficient but at least the radio will deliver full power to the "matched/synthesised" load.

Keep up the videos..

Doug VK4ADC

PS - Mine takes less than 5 minutes to put up   Wink
Doug VK4ADC @ QG62LG51
http://www.vk4adc.com

This Forum is only going to be as interesting as the posts it contains. 
If you have a comment or question, post it as it may trigger or answer the query in someone else's mind.
Reply


Messages In This Thread
Five minute portable 40m GP antenna - by VK4BZ - 21-06-2017, 10:49 PM
RE: Five minute portable 40m GP antenna - by VK4ADC - 22-06-2017, 08:34 AM
RE: Five minute portable 40m GP antenna - by VK4BZ - 25-06-2017, 09:40 PM

Forum Jump:


Users browsing this thread: 1 Guest(s)