(Please scroll to the bottom of this page to access the menu)

 

Remote Antenna Selector

 

The Alpha Digital Antenna Selector (DAS), seen here atop the Alpha 87A linear amplifier, provides automatic and manual antenna selection through remote antenna relays.  The Alpha 87A linear amplifier can command the DAS to energize the antenna relay it has been programmed to select for a particular band, or the antenna may be selected manually through the buttons on the DAS front panel, or an antenna can be assigned to each band for automatic antenna selection.  Antenna selection may also be made remotely over the internet through TRX-Manager software.
  

 

 

 

 

 

 

 

 

 

 
  In the six video clips below, Alpha ETO designer Dick Ehrnorn demonstrates the operation of the DAS.

Alpha Digital Antenna Selector (DAS) Videos:

1.  ETO Alpha DAS 1/6

2.  ETO Alpha DAS 2/6

3.  ETO Alpha DAS 3/6

 

More informaiton

 










4.  ETO Alpha DAS 4/6

5.  ETO Alpha DAS 5/6

6.  ETO Alpha DAS 6/6

 

DAS Schematic: Page 1      Page 2      Page 3      Page 4

 

 

 

  
[an error occurred while processing this directive]
 
bullet  Home
 
bullet  Station Construction
 
bullet  Antennas
 
bullet  Radios
 
bullet  Amplifier
 
bullet  Computer Automation
 

 

Back to top of page

 

  
bullet  Parallel Four-band Dipole
 
bullet  Butternut HF9V 80-6 Meter 9-Band Vertical
 
bullet  Hex-Beam
 
bullet  Remote Antenna Relay Selector
 

 

Send e-mail to: KJ6YVT

  
Hits: [an error occurred while processing this directive] Date of last edit: January 13, 2015 16:28:26 -0800
© Copyright: L. Dighera, 2012; All Rights Reserved: LDighera@att.net