[TowerTalk] Terminate unused ports on remote antenna switch?

[k1ttt.dave at gmail.com]

Raymond, the original post was about a 6 port switch....   it sounds like you are talking about a 4-square box where you only have 2 of the 4 verticals connected.  If that is the case it is much different than the original question and we would need much more information to give logical suggestions.  To reply in this case we would need to know what type of 4-square box you have and how far apart the 2 verticals are, are they adjacent corners of a 1/4 wave square or opposite corners?  If the box is a comtek style hybrid network then using 50 ohm loads would be wrong, those boxes expect 100 ohm loads (50 ohm base impedance transformed through 1/4 wave of 75 ohm coax). 

David Robbins K1TTT
e-mail: mailto:k1ttt at arrl.net
web: http://wiki.k1ttt.net
AR-Cluster node: telnet://k1ttt.net:7373


-----Original Message-----
From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of Raymond Benny
Sent: Tuesday, August 10, 2021 19:07
To: Mark - N5OT <r-emails at n5ot.com>
Cc: Tower Talk <towertalk at contesting.com>
Subject: Re: [TowerTalk] Terminate unused ports on remote antenna switch?

Yes, it would be great to have all four antennas up and ready to go. But until then your reply does not answer the question.

I'm in the same boat. Two of the four 80m verticals are up and functional individually. I am hoping to get the other two before winter arrives, but real time life situations seem to get in the way. Besides, I have several other antenna projects I have to trade off my time with.

For my situation, I am planning to install 1 kw dummy loads to the unused ports and see what happens. I was hoping that someone would provide some realistic input to this situation. And, of course, you are welcome come here and lend a hand....

I'm open for some real suggestions.

Ray,
N6VR/W7YA

On Tue, Aug 10, 2021, 3:34 PM Mark - N5OT <r-emails at n5ot.com> wrote:

> Correct answer.
> N5OT
>
>
> On 8/8/2021 6:54 AM, k1ttt.dave at gmail.com wrote:
> > The proper thing to do is to add more antennas until you fill up all 
> > the
> ports!
> >
> >
> > David Robbins K1TTT
> > e-mail: mailto:k1ttt at arrl.net
> > web: http://wiki.k1ttt.net
> > AR-Cluster node: telnet://k1ttt.net:7373
> >
> >
> > -----Original Message-----
> > From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of WW3S
> > Sent: Saturday, August 7, 2021 19:57
> > To: TowerTalk <towertalk at contesting.com>
> > Subject: [TowerTalk] Terminate unused ports on remote antenna switch?
> >
> > Have a 6 port antenna switch, outdoors, but in an enclosure…..whats 
> > the
> thoughts on terminating the unused ports, terminate or just leave open ?
> >
> > Sent from my iPad
> > _______________________________________________
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