Wednesday, October 12, 2016

Log book update

Its been awhile since I did much with the radio but thats the was Summer goes.    Working on getting 3 Antennas built before the snow flys my Fan Dipole and an 80m and 160m vert.     The sw box is all installed up the hill.   I recently dropped a bunch of trees to make way for the dipole ... verts are allot easier!   The fan dipole is more or less ready to be strung up as soon as I clear away a bit of the trees that I dropped.    

Worked a few on 40 a couple of weeks!   This is my log book update....

Wednesday, June 29, 2016

Just how did I do that ....

Ok ,  good old sol is up to no good with ZERO Sunspots over the past few days and then this happens .....

So please explain because I am baffled!

Monday, June 27, 2016

Log Book Update

No time for the good old radio but there will be soon.  Really looking forward to getting back on track with my antenna projects.

Last contact was Easter Island on 17m how cool is that!

Sunday, May 22, 2016

20 Meter 5/8 works??????

OK ,  put one heck of and effort into the 20m 5/8 last summer only to determine that it really wasnt working all that well.    Just for the heck of it I heard a guy calling in Bulgaria ,  on RX 5/8 was S7 on the 1/4 S6 so I gave him a call and got a 599 back....well it was a 599 that probably was a stretch!    Best thing is this antenna at 14.0 Mhz has a VSWR of 1.1:1.  

20m 1/4 gp tuning

Checked using the vswr meter on the radio ....

Initial ....

14.0    1.6:1
14.1    1.5:1
14.2    1.4:1
14.3    1.4:1
14.4    1.4:1
14.5    1.6:1

Going to #1 add to the vertical element 18" to drop the VSWR aiming for 14.0 @ 1.4:1 then #2 I am going to add another 8 radials and see if I can get the VSWR down further.  

With the added 18"

13.9    1.8
14.0    1.6
14.1    1.6
14.2    1.6
14.3    1.7
14.4    2:1  

So no doubt the optimum is lower but the overall VSWR is suffering.  So now its about the radials .....

Friday, May 20, 2016

Antenna season is here ... I have a plan!

 I have been gathering stuff for some upcoming antenna projects and have been doing lots of reading and have a plan!  

Phase A ... top of hill

   Over the past couple of days I have installed another RCS4 Antenna Switcher at the top of my hill.   Currently there is a 14avq feed by 500 ft of mostly heliax.....very low loss!    The 14 avq continues to perform very well on 40, 20 and 15 meters often outperforming my 40 and 20 m 1/4 GPs.    So I now have 3 antennas to build at the top of the hill....

1 ) Fan Dipole 40, 30, 17, 10 and 6 meters.    Should be up high enough for a low throw on 40m...other bands are no problem height wise.    6 mertes is a first and the 10 meter is a 14avq replacement for some reason 10 on the avq sucks.

2)   80m 1/4 GP with 8 radials to start.   I currently have a skywarmer in the form of a 80m dipole too too low to the ground!   Once the 80m vert is up the dipole will be trashed.

3)   30m 1/4 GP the same as what I have next to the house.   This will be my height advantage test ....nearly 100ft more in elevation.  

4)  Wouldn't mind trying some "tuned radials on the 14 avq ... I know I can do better with the ground plane.  

Phase B... just behind house

 1)  Last summer I built a 20m 5/8 that didn't cut it so its going to be scrapped.   In its place a 160m 1/4 GP with 8 radials.

2)  Going to re-purpose the 8 radials from the 20m 5/8 and add them to the 20m 1/4 gp for a total of 16 radials.  

Phase C ....  at the house

1 ) Don't have anything for 2m so I have a spare 5/8 I am going to mount in place of  the KA Sat Dish.  Primarily to monitor a couple of local FM Repeaters and 52 when in the shack.  

 I am sure I will come up with a few other plans however the above will probably take me into the fall.  What I will end up with is a new capability on the 1.8 and 3.5 MHz!  

 Antennas I will end up with ......

2 Meters-  5/8 Vert
6 Meters -   High Dipole
10 Meters -  14avq very ( so so ) and Dipole
15 Meters - 14avq very good results with this antenna on this band
17 Meters - 1/4 GP Vert very good reults with this antenna dead flat 1:1 VSWR and Dipole
20 Meters - 14avq Vertical,  1/4 GP Vert  jurys out on theses two ... both performers!
30 Meters - Dipole and 1/4 GP Vert very good reults with this antenna dead flat 1:1 VSWR
40 Meters - 14avq ,  1/4 GP Vert and Dipole
80 Meters - 1/4 GP Vert
160 Meters - 1/4 GP Vert

Beverage notes ...

Greta blog post on building the matching transformer for a beverage antenna ...