Topband: Tuning Titanex V80 - HLP!!!

jlopez at plasticosomega.com jlopez at plasticosomega.com
Wed Nov 19 10:48:34 EST 2003


Hi,
I have installed a Titanex V80E as fixed, and because I have found some 
measurements that have no sense for me I didn`t install the tunning box 
without further exploration. 

I installed four Elevated radials of about 20 mts (66 ft) at 10 ft over the 
ground, the radials (copper with pvc coating) run parallel to the antenna up 
to 10 ft were I install scattered around the antenna using some pine trees 
as a pole. 

My tower`s base (36 feet high)  with TH6 is abt 15 feet from the Titanex so 
I um unable to rotate completely, could this generate some kind of parasit 
influence? 

My lot is fenced with chicken wire and the Titanex closest point to the 
fence is about 15 ft. 

The readings obtained at the base using an MFJ-259B (No broadcast close to 
my QTH) are:
40 mts band:
7.025-swr:5.4-r:50-x:126
7.034-swr:5.3-r:46-x:120
7.150-swr:5.0-r:23-x:73
80 mts band:
3.311-swr:5.0-r:8-x:24
3.600-swr:2.2-r:50-x:50
3.700-swr:2.2-r:28-x:31
3.850-swr:3.1-r:14-x:23
160 mts band:
1.850-swr:21-r:1-x:19
2.571-swr:9.4-r:42-x:180
2.711-swr:6.0-r:50-x:140 

I think that under the conditions shown before, with a tuning box at the 
base I will be able to work pretty good on 7.034 & 3.600 but what happened 
in 160 ? with an R value of 1 the cable could be melted, isn`t it? 

Ideas to make my antenna fully operative for the next LB season welcome. 

73's de Javier
yv5mbx 




More information about the Topband mailing list