[CQ-Contest] RE: [YCCC] ft-1000mp beverage switching?

[Jordan, David]

I would.  See N1EU's web site for his simple receiver saver circuit.
A few diodes and a resistor

David Jordan,
Principal Antenna Design Engineer
DFSS Six Sigma BlackBelt
M/A-COM
1011 Pawtucket Blvd
Lowell, MA 01853
(978)442-4190
www.macom.com


-----Original Message-----
From: yccc-bounces at yccc.org [mailto:yccc-bounces at yccc.org] On Behalf Of
Brian Lambert, N1IK
Sent: Friday, January 07, 2005 3:33 PM
To: 'Michael K. Loukides'
Cc: 'YCCC'; 'reflector cq-contest'
Subject: RE: [YCCC] ft-1000mp beverage switching?

Well, this unit goes between the K9AY control box and the radio, and
disconnects the whole thing, preamp and all, from the radio.

I'm not sure whether RF coupled to the loop could damage the K9AY box and
its preamp, but this hasn't happened so far...

Best,

Brian Lambert
N1IK 

-----Original Message-----
From: Michael K. Loukides [mailto:mikel at oreilly.com] 
Sent: Friday, January 07, 2005 2:57 PM
To: Brian Lambert, N1IK
Cc: 'David Robbins K1TTT'; 'YCCC'; 'reflector cq-contest'
Subject: RE: [YCCC] ft-1000mp beverage switching?

I'd imagine that, with an antenna like the k9ay, you'd also want to switch
out the preamp, too?  Or do you not use one?

(I'm considering putting up a pennant this summer--that's why I'm
asking.)

Mike

On Fri, 7 Jan 2005, Brian Lambert, N1IK wrote:

> I believe that's right, David, the RX port is not switched off/out 
> when the rig is transmitting.
>
> To protect my radio, especially now that I have an amplifier, I 
> installed a relay to disconnect my K9AY loop from the FT-1000MP MARK-V
Field during TX.
> K9AY sells one:
>
> http://www.aytechnologies.com/Products/RIP1data.htm
> http://www.aytechnologies.com/
>
> I could have made my own, but his was cheap enough that it wasn't 
> worth my time.
>
> Best,
>
> Brian Lambert
> N1IK
>
> -----Original Message-----
> From: yccc-bounces at yccc.org [mailto:yccc-bounces at yccc.org] On Behalf 
> Of David Robbins K1TTT
> Sent: Friday, January 07, 2005 2:15 PM
> To: YCCC; reflector cq-contest
> Subject: [YCCC] ft-1000mp beverage switching?
>
> Trying to figure out how to do 2 radios on one band with mp's... it 
> appears that the beverage antenna input is not switched off when the 
> ptt is keyed, is this correct??  So when transmitting the beverage is 
> still connected through to the rx rf path?  Or does the relay on the 
> rf board that selects the beverage input get switched back to the (now 
> disconnected by the tr
> relay) normal antenna line??
>
>
> David Robbins K1TTT
> e-mail: mailto:k1ttt at arrl.net
> web: http://www.k1ttt.net
> AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
>
>
>
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