[Elecraft] Antenna 2

[Michael Eberle]

I believe he is actually operating into an antenna on Ant1 port. He 
switched to Ant2 to check the port isolation and would obviously switch 
back to Ant1 to operate.  I doubt grounding the non-selected antenna 
port would make any difference on TX and some use both ports for 
diversity RX.  If protecting the radio is the concern then I believe as 
Kent stated, the dummy load would be the best option.

Mike  KI0HA


On 11/28/2017 12:01, David Gilbert wrote:
>
> That doesn't explain how he expects the rig to short out the port for 
> Ant 2 . .. WHEN IT HAS BEEN SELECTED ... just because there is no 
> actual antenna connected to it.  I don't get the reasoning behind the 
> original query.
>
> Dave   AB7E
>
>
> On 11/28/2017 7:04 AM, K9ZTV wrote:
>> We hook dummy loads to ANT 2 on all our K3s during FD to prevent 
>> inadvertent transmissions when no antenna is connected to it.  The 
>> ATU TUNE button is immediately above the ANT button and 
>> fat-fingered/far-sighted ops unfamiliar with the K3 have been known 
>> to hit the wrong one, especially on the higher bands where the noise 
>> floor makes it difficult to detect the absence of an antenna.
>>
>> 73,
>>
>> Kent  K9ZTV
>>
>>
>>
>>> On Nov 28, 2017, at 7:40 AM, David Gilbert 
>>> <xdavid at cis-broadband.com> wrote:
>>>
>>>
>>> If you selected Ant 2 it wouldn't have been "unused".   How is the 
>>> rig supposed to know you don't have anything physically connected to 
>>> that port?
>>>
>>> Dave   AB7E
>>
>
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