Re: [Elecraft] Two K2... One Mic... Zéro Problem ? :-)

[JEAN-FRANCOIS MENARD]

I'm looking at a way to merge enterely two K2 to the same ressource:  
ONE mic and ONE multi-band antenna. So the setup interface must be  
able to switch mic between K2, and when one K2 transmit, the  
receiving on the other K2 is muted.... and also making sure that the  
RF is stopped and do not enter in the receiving K2.... One Antenna  
for two K2.... when both K2 do not transmit, they can listen on  
different or same band at the same time.

Am I dreaming ? It must be possible to do this project ? ;-)

73

Le 05-09-18 à 20:08, Jack Brindle a écrit :

> If you are really worried about it, Wayne came up with a  
> modification to improve the K2's strong-signal handling  
> characteristics. This was created specifically to protect the  
> receiver in the presence of strong near-by signals. Usually these  
> are only a problem when the transmitter and receiver are on the  
> same band, or even on the same frequency. If you keep the radios on  
> different bands, I doubt you will see much problem.
>
> I hope this helps, et bon chance!
>
> On Sep 18, 2005, at 4:14 PM, JEAN-FRANCOIS MENARD wrote:
>
>
>> Ok for the mic. My main concern is for the K2 that will be  
>> receiving when the other transmit and vice-versa....
>>
>> Le 05-09-18 à 18:50, Jack Brindle a écrit :
>>
>>
>>
>>> This is very close to contesting's SO2R (Single Op, two radios).  
>>> The difference is that in SO2R both radios are always active.  
>>> When one transmits, the other continues to receive. Bandpass  
>>> filters are used to keep the transmit RF from adversely affecting  
>>> the 2nd radio's receiver. If it did hurt it, then that radio  
>>> would be rather useless when the first is transmitting, right?
>>>
>>> Switching the microphone between the two radios shouldn't be too  
>>> difficult with a simple switch, and if you really want to get  
>>> fancy, you too could become addicted to creating the ultimate  
>>> SO2R box... ;-)
>>>
>>> A web lookup on SO2R should be quite revealing. After reading the  
>>> articles, you might realize that it is not that difficult to use  
>>> TWO K2s at the same time!
>>>
>>> On Sep 18, 2005, at 7:54 AM, JEAN-FRANCOIS MENARD wrote:
>>>
>>>
>>>
>>>
>>>> Hi to all,
>>>>
>>>> I would like to build another K2 this automn, I can't stand in  
>>>> my shack without no kit to build. ;-)
>>>>
>>>> But I would like to know if it is possible (I think to an easely  
>>>> yes) to operate two K2, one at a time of course, but using the  
>>>> same microphone with an a/b switch like. And when one K2 is in  
>>>> TX the other is stop listenning, to prevent or to protect it,  
>>>> from busting his fontend.
>>>>
>>>> If someone already did this setup, it would be really  
>>>> appreciated to share this project with us. Or at least somebody  
>>>> have a good start for this ???
>>>>
>>>>
>>>>
>>>
>>>
>>> -Jack Brindle, W6FB
>>> ==================================================================== 
>>> ===
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>
> - Jack Brindle, W6FB
> ---------------------------------------------------------------------- 
> -----------------------
>
>
>