[Elecraft] [KX3] 2M module XVTR amp

2013-08-20 Thread Edward R Cole

Chris,

Where did you get the idea that the KX3 2M module output 1mw?  Wayne 
has repeatedly stated they expect something between 3 to 5w 
output.  I know nothing about the Flex6700 (does it run with 1mw 
output?).  Most of the RF modules used in radios require something 
like 20mw (+13 dBm) drive.  http://www.rfparts.com/ra13h1317m.html


One can make a nice 10-13w amplifier using a mmic driver into a 
choice of several RF modules.  Only RF design would be the LP filter 
on the high level output.  I used a MAV-11 with 50mw output to drive 
a ($33 from RF Parts) RA13H1317M module to 13w output.  These mmic's 
and RF modules require no tuned circuits so little engineering to 
their circuitry.  Just deliver the proper drive and dc voltages with 
power leads RF decoupled using bypass caps and regulated dc voltage.


Really simple circuitry.

73, Ed - KL7UW

-
Since we have some time to wait,  I was wondering if I could get some 
advice on any available amps that could be used to boost the 1mW 
projected output of the KX3's upcoming 2M module to higher power 
levels.   I could use this on my Flex 6700 2M radio as well.   Either 
something to drive a larger amp, so between 1 and 5 watts, or even 
more.   Does anyone have any good recommendations?


Chris
K6OZY

73, Ed - KL7UW
http://www.kl7uw.com
dubus...@gmail.com
Kits made by KL7UW 


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Re: [Elecraft] [KX3] 2M module XVTR amp

2013-08-20 Thread Chris Johnson
Oh Really?   Thats fantastic!   I could have sworn I asked at Dayton and was 
told it was XVTR level output.   Perhaps Wayne or Eric can tell us for sure.   
It would help planning!

I did find this:  http://www.downeastmicrowave.com/PDF/2m30PA.PDF

On Aug 20, 2013, at 12:11 AM, Edward R Cole kl...@acsalaska.net wrote:

 Chris,
 
 Where did you get the idea that the KX3 2M module output 1mw?  Wayne has 
 repeatedly stated they expect something between 3 to 5w output.  I know 
 nothing about the Flex6700 (does it run with 1mw output?).  Most of the RF 
 modules used in radios require something like 20mw (+13 dBm) drive.  
 http://www.rfparts.com/ra13h1317m.html
 
 One can make a nice 10-13w amplifier using a mmic driver into a choice of 
 several RF modules.  Only RF design would be the LP filter on the high level 
 output.  I used a MAV-11 with 50mw output to drive a ($33 from RF Parts) 
 RA13H1317M module to 13w output.  These mmic's and RF modules require no 
 tuned circuits so little engineering to their circuitry.  Just deliver the 
 proper drive and dc voltages with power leads RF decoupled using bypass caps 
 and regulated dc voltage.
 
 Really simple circuitry.
 
 73, Ed - KL7UW
 
 -
 Since we have some time to wait,  I was wondering if I could get some advice 
 on any available amps that could be used to boost the 1mW projected output of 
 the KX3's upcoming 2M module to higher power levels.   I could use this on my 
 Flex 6700 2M radio as well.   Either something to drive a larger amp, so 
 between 1 and 5 watts, or even more.   Does anyone have any good 
 recommendations?
 
 Chris
 K6OZY
 
 73, Ed - KL7UW
 http://www.kl7uw.com
 dubus...@gmail.com
 Kits made by KL7UW 
 __
 Elecraft mailing list
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Re: [Elecraft] [KX3] 2M module XVTR amp

2013-08-20 Thread Matt VK2RQ
There was a post some months ago to gauge interest in a 0dBm output module, but 
if that eventuates, it will not be until after the ~3W output transverter is 
released.

73,
Matt VK2RQ

On 20/08/2013, at 5:49 PM, Chris Johnson o...@ozy.us wrote:

 Oh Really?   Thats fantastic!   I could have sworn I asked at Dayton and was 
 told it was XVTR level output.   Perhaps Wayne or Eric can tell us for sure.  
  It would help planning!
 
 I did find this:  http://www.downeastmicrowave.com/PDF/2m30PA.PDF
 
 On Aug 20, 2013, at 12:11 AM, Edward R Cole kl...@acsalaska.net wrote:
 
 Chris,
 
 Where did you get the idea that the KX3 2M module output 1mw?  Wayne has 
 repeatedly stated they expect something between 3 to 5w output.  I know 
 nothing about the Flex6700 (does it run with 1mw output?).  Most of the RF 
 modules used in radios require something like 20mw (+13 dBm) drive.  
 http://www.rfparts.com/ra13h1317m.html
 
 One can make a nice 10-13w amplifier using a mmic driver into a choice of 
 several RF modules.  Only RF design would be the LP filter on the high level 
 output.  I used a MAV-11 with 50mw output to drive a ($33 from RF Parts) 
 RA13H1317M module to 13w output.  These mmic's and RF modules require no 
 tuned circuits so little engineering to their circuitry.  Just deliver the 
 proper drive and dc voltages with power leads RF decoupled using bypass caps 
 and regulated dc voltage.
 
 Really simple circuitry.
 
 73, Ed - KL7UW
 
 -
 Since we have some time to wait,  I was wondering if I could get some advice 
 on any available amps that could be used to boost the 1mW projected output 
 of the KX3's upcoming 2M module to higher power levels.   I could use this 
 on my Flex 6700 2M radio as well.   Either something to drive a larger amp, 
 so between 1 and 5 watts, or even more.   Does anyone have any good 
 recommendations?
 
 Chris
 K6OZY
 
 73, Ed - KL7UW
 http://www.kl7uw.com
 dubus...@gmail.com
 Kits made by KL7UW 
 __
 Elecraft mailing list
 Home: http://mailman.qth.net/mailman/listinfo/elecraft
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 Post: mailto:Elecraft@mailman.qth.net
 
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 Please help support this email list: http://www.qsl.net/donate.html
 
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[Elecraft] [KX3] 2M module XVTR amp

2013-08-19 Thread Chris Johnson
Since we have some time to wait,  I was wondering if I could get some advice on 
any available amps that could be used to boost the 1mW projected output of the 
KX3's upcoming 2M module to higher power levels.   I could use this on my Flex 
6700 2M radio as well.   Either something to drive a larger amp, so between 1 
and 5 watts, or even more.   Does anyone have any good recommendations?

Chris
K6OZY
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