Search found 708 matches

by VK4TI
Thu Sep 17, 2015 11:21 pm
Forum: Transceivers, Transmitters & Receivers
Topic: Icom IC-718 receive problem
Replies: 16
Views: 3449

Re: Icom IC-718 receive problem

I suggest you locate the relay and if possible open it , run some dry paper like butchers through the relay several times and see if it helps ?
by VK4TI
Wed Sep 16, 2015 7:22 pm
Forum: PC/Mac iOS Software
Topic: Software for calculating feed impedance
Replies: 17
Views: 7236

Re: Software for calculating feed impedance

"VK3LU"Thanks Geoff, That chart makes trying out the 21ft6in 30/20 vertical I made worth a try. I don't know why I have never used it :oops: I still think the 43 ft vert is the best choice from what I have read. But I can't do a thing about it up here in VK4 :beer: Cheers Nev " It's q...
by VK4TI
Sun Sep 13, 2015 2:54 pm
Forum: PC/Mac iOS Software
Topic: Software for calculating feed impedance
Replies: 17
Views: 7236

Re: Software for calculating feed impedance

you could use a 32'6"vertical but it is not as versatile however it does offer a good signal on 40 m , 15 with some tricks and perhaps another smaller vertical for 10 and 20m as well ? , or if you have some trees then a 43ft sloper perhaps
by VK4TI
Sat Sep 12, 2015 4:03 pm
Forum: PC/Mac iOS Software
Topic: Software for calculating feed impedance
Replies: 17
Views: 7236

Re: Software for calculating feed impedance

Have a read about the 43ft vertical . mine performs very well and cost not much

http://www.ad5x.com/images/Presentation ... 43RevA.pdf
of course grounding systems help but need not be complicated or costly
by VK4TI
Fri Sep 11, 2015 11:29 am
Forum: Towers, Masts & Transmission Lines
Topic: Easy way to make open wire transmission line
Replies: 11
Views: 7339

Re: Easy way to make open wire transmission line

""VK4Bxi::There was a Ham in South Africa making them. Worked out at about 25 Rands a packet and very cheap for us. I still have a few packets of them. I will find out if they are still available if there is interest.

Bob ""

25 rand is about $3.00 ? or was the convesion wrong ?
by VK4TI
Fri Sep 11, 2015 8:29 am
Forum: PC/Mac iOS Software
Topic: Software for calculating feed impedance
Replies: 17
Views: 7236

Re: Software for calculating feed impedance

If using a std design then the impedence will be easily available , simply measuring it when built will aid in matching but what objectives ?
by VK4TI
Thu Sep 10, 2015 12:45 pm
Forum: Propagation & Solar Cycle News
Topic: K index
Replies: 4
Views: 4911

Re: K index

There some sort of magnetic thing last night again

Us were complaining about it on 40m
by VK4TI
Sat Aug 22, 2015 9:17 am
Forum: Miscellaneous
Topic: Hackers from above
Replies: 11
Views: 6788

Re: Hackers from above

""I agree with DXE. Also I read recently about someone who was arrested for inserting a bit of lead into someone's drone.

VK3AWG
Forum Novice ""



fined for dischargibng a firewarm within city limits is the charge , and a hand shake for finishing the aircraft
by VK4TI
Wed Aug 19, 2015 8:46 am
Forum: E.M.E.
Topic: Alternative Dish materials...
Replies: 8
Views: 5202

Re: Alternative Dish materials...

some sort of plastic and metal coat it ? , there has to be a paint surely ?
by VK4TI
Tue Aug 18, 2015 10:58 am
Forum: Miscellaneous
Topic: Free WIN 10 upgrade
Replies: 36
Views: 12973

Re: Free WIN 10 upgrade

Interesting morning re win10 upgrade

I have here now a couple of brand name tablets which when upgrading from win8.1 fell over and wont go back so it looks like a fresh install is required

not common but it can it seems happen
by VK4TI
Mon Aug 17, 2015 4:23 pm
Forum: Miscellaneous
Topic: Free WIN 10 upgrade
Replies: 36
Views: 12973

Re: Free WIN 10 upgrade

I have little bit of rare software thats not running well in win 10 , however the more that do take the upgrade the cheaper the maintenance cost are for microsoft , just be sure to back everything you meed like email and take care to not give general access to your machine unless you like being a la...
by VK4TI
Mon Aug 17, 2015 8:19 am
Forum: Miscellaneous
Topic: Free WIN 10 upgrade
Replies: 36
Views: 12973

Re: Free WIN 10 upgrade

I upgraded the win8.1 machine and the tablet , the win7 hardware is over 3 yo so not upgraded , imho win10 seems better than 8 so how good is the hardware ?

no rush either , there are other o/s you might consider for old hardware
B
by VK4TI
Fri Aug 14, 2015 10:50 am
Forum: Miscellaneous
Topic: Hackers from above
Replies: 11
Views: 6788

Re: Hackers from above

Doesn't get mentioned but several drones have been made to disappear with a bang and some lead , legality doesn't mean moral or a right ?
local teenager lost one in the neighbours yard and of course their dog enjoyed it :)
by VK4TI
Thu Aug 13, 2015 7:49 pm
Forum: Miscellaneous
Topic: Hackers from above
Replies: 11
Views: 6788

Re: Hackers from above

solution , 12 bore


the end ..........
by VK4TI
Wed Jul 29, 2015 11:36 pm
Forum: EMC, Interference
Topic: Help!!...NBN Interference
Replies: 35
Views: 14229

Re: Help!!...NBN Interference

first thing I would test by substitution would be the nbn switch mode psu
by VK4TI
Wed Jul 29, 2015 1:02 pm
Forum: EMC, Interference
Topic: Help!!...NBN Interference
Replies: 35
Views: 14229

Re: Help!!...NBN Interference

How about doing a short survey with an rx walking off site and around the site to see where it is worst , should be interesting then you can make an informed complaint ?.
Barry
by VK4TI
Sun Jul 26, 2015 4:19 pm
Forum: Arduino, Picaxe, Raspberry Pi, and variants
Topic: Arduino
Replies: 21
Views: 11150

Re: Arduino

bezels ?
did you check on http://www.adafruit.com/categories
by VK4TI
Sat Jul 25, 2015 8:47 am
Forum: Ancillary, Test Equipment, Components & Parts
Topic: Converting 50V - 54V DC to 13.8V DC
Replies: 7
Views: 4025

Re: Converting 50V - 54V DC to 13.8V DC

""a good circuit diagram for converting 50-60V DC to 13.8V"" It''s quite easy to do but considering a simple switch mode can be had off the net for $40.00 for 30 amps why would you bother(email if you want a link) , keep the supply for feeding that new solid state amplifier you w...
by VK4TI
Mon Jul 13, 2015 12:31 pm
Forum: 50 MHz
Topic: New LCD detail shows 50-54MHz for Advanced Licence
Replies: 18
Views: 8267

Re: New LCD detail shows 50-54MHz for Advanced Licence

""VK2TS

Upgrade to advanced.

Cheers""

Kinda simplistic Tony considering the 100 watt guys do have the skills , lets get them the full 50 mhz and populate ?
by VK4TI
Thu Jul 09, 2015 3:35 pm
Forum: 1296, Microwaves and Opto
Topic: Dumb EME question #1
Replies: 26
Views: 3434

Re: Dumb EME question #1

I understand the trees are attractive , and make rubbish over the place and more work , personally they would shrink over night getting a chance to thicken and blossom whilst remaining shorter