[TowerTalk] Terminate unused ports on remote antenna switch?
Wes
wes_n7ws at triconet.org
Tue Aug 10 21:29:34 EDT 2021
Bingo.
Wes N7WS
On 8/10/2021 6:22 PM, Earl Morse wrote:
> Terminating multiport devices in their characteristic impedance is desired
> when those ports are still part of the circuit. In the case of the antenna
> switch, which disconnects the undesired ports and either just leaves them
> hanging or shorts them to ground, termination with a dummy load doesn't
> really do anything except to prevent you from transmitting into an unused
> port that is either open or shorted and not properly terminated. It would
> probably be cheaper to use a switch with the proper amount of connections
> rather than buying dummy loads for each unused connection.
>
> It is common to terminate unused ports in various multiple port devices but
> really doesn't apply to the coaxial switch as the unused ports are
> physically disconnected or shorted or both.
>
> Earl
> N8SS
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