[Elecraft] ] KPA500 Multiple Antenna Option

[Johnny Siu]

Hello Dick,
 
I think it is very common that many of us have more than one radio and one antenna.  Multiple antenna output and input sockets are just a logical customer's wish.
 
I hope the forthcoming KAT500 will address this issue.  Otherwise, I am afraid I have to go for the others such as SPE

TNX & 73,


Johnny VR2XMC

從︰ "RLVZ at aol.com" <RLVZ at aol.com>
收件人︰ elecraft at mailman.qth.net
傳送日期︰ 2011年07月11日 (週一) 12:55 PM
主題︰ [Elecraft] KPA500 Multiple Antenna Option

I'd love to see the KPA500 companion Antenna Tuner have a minimum  of 5 
antenna outputs which can be controlled automatically via  the K3.  This is the 
only way I'd purchase a KPA500 as otherwise I'll  keep my Quadra which does 
automatic bandswitching nicely with the  K3. 

73,
Dick- K9OM




In a message dated 7/10/2011 10:53:16 P.M. Central Daylight Time,  
elecraft-request at mailman.qth.net writes:

I am not  familiar with the various outboard devices to which you refer (as 
have  never needed them).  I am not suggesting that the KPA500 needs  
additional antenna outputs though that is one way to do it.  That  would 
constritute an internal antenna switch.  The KPA500 represents  many 
upgrades 
from my 1980's amplifier so I am surprised that my 80's amp  has a 
capability 
that the KPA500 doesn't.

The band data information  from the K3 goes to the KPA500 to tell it what 
band it is to be on.   Are you saying this can be paralleled safely and 
also 
instruct another  device?  I would think such might not be compatible and a 
risky thing  to do.

In my set up (with an old Yaesu FL-7000) the band data  information from 
the 
K3 goes to the FL7000 to tell it which band to be  on.   The FL7000 then 
associates one of four antenna positions  with a band, this is changeable 
at 
any time and then remembered, and  outputs relay control to a remote 
antenna 
switch.  If the remote  switch is not in use, the "antenna" which is 
associated by band is  irrelevant.  I am surprised that the KPA500 does not 
have this  capability standard and built in with the outboard remote 
antenna 
relay  being an option.  Without this, band changing is not, in fact,  
automatic.

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