[LCC] 7QP this weekend!

[Steve Lott]

Scott,

Thank You for the detailed explanation of what sounds like the perfect rcv
antenna stream useage in a m/m station

I am far from doing that buy really enjoy the 9el YCCC array
I finally added a small (500ft) bidirectional beverage and the YCCC Array
kicks its butt !

This Fall I will be adding a 3el Hi-Z array just to have more choices and
apples to compare with my oranges and pears :)

I am finishing up the concrete and rebar forms, concrete comes Tuesday

cheers!
steve


http://www.KG5VK.com
My Ham Radio Friends


On Fri, May 5, 2017 at 2:03 PM, <w5wz at w5wz.com> wrote:

> Steve,
>
> that is a great question.  Here's my attempt to answer it.
>
> Currently, I only connect the beverage to a single radio, but am making
> plans to implement a switching scheme like I've seen and experienced at
> K8AZ.
>
> The ideal situation would be to set it up like K8AZ:
>
> First, all the receive antenna feedlines come all the way back into the
> shack.  Then, a Magic-T style splitter is inline on each incoming receive
> ant feedline.  Next, after the splitting, preamps and attenuators are
> inline to "normalize" and balance signal strengths before connecting to the
> receive antenna switches that are found behind operating positions C & D.
> So at K8AZ, there are 2 positions for low bands.  Because of the splitters
> and two distinct receive antenna switches, C & D can listen to the same or
> to different receive antenna without eliminating any available receive
> antenna from the other radio.
>
> Here is how it works at K8AZ, for both position C & D:
>
> 1.  After the splitters, preamps and attenuators, all available receive
> antennas connect to an antenna switch in the shack, right behind the
> operating position.
> 2.  The transceiver's RX ANT OUT is connected to Port 1 of that antenna
> switch.
> 3.  The common from the antenna switch passes thru automatic (Dunestar
> 100w) bandpass filters to the RX ANT IN on the transceiver.
> 4.  The transceiver is always set to listen to the RX ANT IN port, no
> matter what.
>
> Then, to listen on your transmit antenna, select position 1 (and gain the
> added benefit of passing the signal thru both the transmit chain external
> band pass filters (Dunestar 200w automatic between XCVR and AMP; and after
> the amp on each band's feedline to the antenna farm are high power WA3NQN
> single-band filters) and the receive chain (the external Dunestar 100w btwn
> the rcv ant switch and the receiver).  Other positions on the rcv ant
> switch will only benefit from the receive chain BP filters.
>
> --Scott, W5WZ
>
>
>
> On 2017-05-05 06:58, Steve Lott wrote:
>
>> Hi Scott !!!
>>
> <snip>
>
> However I have a Question for you,
>> I know you use beverages
>> I think you do also do some SO2R, if I am right on the SO2R
>> are you using band pass filtering OR Stubs on the Receive antennas ?
>>
>> Cheers!
>> Steve
>>
>>
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