Index Thread Archive Mar-2000 Archive Send
 Main index   Previous in threadNext in thread   Previous in archiveNext in archive   Index by Subject for Mar-2000Index by Author for Mar-2000Index by Date for Mar-2000   Index by Subject for ArchiveIndex by Author for ArchiveIndex by Date for Archive   Reply to messageNew message 

Subject: Re. C31XR
Author: Natan Huffman <force12e@lightlink.com>
Date: 21-Mar-2000 09:12:17
Joe,

Please see below:


----- Original Message -----
From: <JRivamonte@aol.com>
To: <Force12talk@qth.com>
Sent: Monday, March 20, 2000 11:07 PM
Subject: [Force 12 Talk] Re. C31XR


> Hi All,
> Two more questions:
> 1. I would like to maximize tower top loading. Does grounding end elements
> (last director and reflector) to boom bother C31XR performance?

Yes, it will. Subtle changes in the design of the C31XR will cause
performance changes.


> 2. I want low and stable swr on all bands. Are three feed lines better
than
> one?

No difference at all.


Do three feedlines minimize effects of wind on swr?

No. The C31XR uses a spacer between the 20 and 15 meter drivers to maintain
geometries. Wind gusts will cause little fluctuations. You will see no
more wind caused VSWR excursions than with any monoband yagi. We use this
spacer because the distance between the 15 and 20 meter drivers is smaller
than in the C3 family.

73

Natan W6XR/2
FORCE 12 East
Ithaca, NY


> Thanks,
> Joe W4UP
>
>
> --------------------------------------------
> Force12Talk mailing list provided as a service by Force 12 Antennas, Inc.
> Force 12 Web site: http://www.qth.com/force12
>
> Submissions: send to Force12Talk@qth.com
> To unsubscribe: send a blank e-mail to Force12Talk-leave@qth.com
> Force12Talk Message Archive: http://www.qth.com/force12/list/force12talk
> For problems with the list, contact force12@qth.com
>
>



--------------------------------------------
Force12Talk mailing list provided as a service by Force 12 Antennas, Inc.
Force 12 Web site: http://www.qth.com/force12

Submissions: send to Force12Talk@qth.com
To unsubscribe: send a blank e-mail to Force12Talk-leave@qth.com
Force12Talk Message Archive: http://www.qth.com/force12/list/force12talk
For problems with the list, contact force12@qth.com


This Thread
  Date   Author  
* 21-Mar-2000 Natan Huffman
20-Mar-2000 JRivamonte@aol.com
This Author (Mar-2000)
  Subject   Date  
C-19-XR 06-Mar-2000
C31XR 15 meter VSWR 03-Mar-2000
F12 Nuts 07-Mar-2000
Help Please. 31-Mar-2000
Ice Loading 10-Mar-2000
Ice Storm 15-Mar-2000
re C4S 09-Mar-2000
* Re. C31XR 21-Mar-2000
Rivet info 23-Mar-2000