[Elecraft] K3 , Elecraft Transverter K144XV-K

[David Anderson]

It might be safest to consider using a 3dB power attenuator on the input of the DB6NT transverter, then you don't have to worry about over driving it. There are some inexpensive 20 watt 3dB or 6 dB attenuators on eBay from China that would do, or you could use the smaller more expensive types that bolt onto a heat sink.

If the DB6NT has a common RX/TX IF port then that loss on RX should not matter very much as the gain of the transverter should be high enough to overcome it.

It also is better from a transmitted wideband noise point of view to do this, as just turning down the drive level to the 144MHz transverter by 3dB reduces the S/N of the transmitter output by that figure. 



73

David Anderson GM4JJJ 

> On 7 Jan 2015, at 09:10, David Pratt <david at g4dmp.fsnet.co.uk> wrote:
> 
> I have just measured my K144XV power output with an accurate power output meter and find that with the K3 set for 1mW the output is 10.5W.  But setting the K3 to 0.1mW (fully counter-clockwise) the output goes down to only about 7W.  No matter what I do, I am unable to reduce the power further.
> 
> It will be interesting to see if other K144XV users find the same.
> 
> 73 de David G4DMP
> 
>> On 7 Jan 2015 04:20, Viggo Magnus Nilsen <la9nea at online.no> wrote:
>> 
>> Hello K3 owners ! 
>> 
>> Want to know the lowest power setting Elecraft internal 2 meter transv.( K144XV-K)??, know the max out is 8 to 10 watt approx....... 
>> 
>> My DB6NT transverters ( IF 144 MHz) need 0,5 to 5 watt ,(IF power settings are adjustable in the DB6NT Transverter)
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