Multi band vertical needs repair

[GM1BSG]

Hi all

For those that prefer antennas to radio construction the multi band vertical needs some attention.

All bands are resonanat at higher frequenceies than they should be. So volunteers to take on that job would be appreciated.

BR, John

[gm0hzi]

i should be down at the club next sunda
so i will look at it then :thum

[GM8GAX]

Neil, John

Can I reccomend that the club buys a can of "Aluminium Antigrippant" from AA components. Not cheap, either £16 or £18 for a large aerosol can - but worth its weight in gold.

Spray onto aluminium mating surfaces BEFORE assembly. reduces aluminium corrosion (that white powdery stuff) by many thousands of percent.

Works like copper-grease on steel -- which of course you would never use on aluminium.

I used nearly a full tin on my Optibeam 9-5, not only every aluminium mating surface but also stainless steel as well -- helps stop S/S galling too).

These days my weekends are busier than when I was working!! otherwise I would be there.

Regards

Peter

[GM0FSV]

I will be at the club on sunday as usual, will be able to assist in any way I can

[gm0hzi]

managed to borrow some alumimium based anti seize compound from a mate at work :thum

but he wants it back :frown:

[gm0hzi]

Managed to have a look at the vertical today and found an intermitant open circut in one of the traps
40 meters is still a bit high in resonance but the others are now ok
Thanks to Gerry and Rab for there help.