Re: Topband: Protecting an Array Solutions K9AY Loop from Transmitted RF

2019-10-15 Thread w5zn
[mailto:topband-boun...@contesting.com] On Behalf Of N4ZR Sent: Friday, October 11, 2019 7:50 AM To: Alan Swinger; topband reflector Subject: Re: Topband: Protecting an Array Solutions K9AY Loop from Transmitted RF Array Solutions no longer handles the K9AY components, which actually came from

Re: Topband: Protecting an Array Solutions K9AY Loop from Transmitted RF

2019-10-11 Thread fmoeves
. Fred KB4QZH -From: "K4SAV" To: topband@contesting.com Cc: Sent: Friday October 11 2019 10:25:03AM Subject: Re: Topband: Protecting an Array Solutions K9AY Loop from Transmitted RF It's likely you won't need any protection from the t

Re: Topband: Protecting an Array Solutions K9AY Loop from Transmitted RF

2019-10-11 Thread James Wolf
: Protecting an Array Solutions K9AY Loop from Transmitted RF I did quite lot of research about protective limiters. The best solution found is to use the special TVS diodes RClamp2502L by Semtech which incorporate surge rated, low capacitance steering diodes and a TVS diode in a single package

Re: Topband: Protecting an Array Solutions K9AY Loop from Transmitted RF

2019-10-11 Thread James Wolf
[mailto:topband-boun...@contesting.com] On Behalf Of K4SAV Sent: Friday, October 11, 2019 10:25 AM To: topband@contesting.com Subject: Re: Topband: Protecting an Array Solutions K9AY Loop from Transmitted RF It's likely you won't need any protection from the transmitter (lightning protection may

Re: Topband: Protecting an Array Solutions K9AY Loop from Transmitted RF

2019-10-11 Thread Tim Duffy
To: Alan Swinger; topband reflector Subject: Re: Topband: Protecting an Array Solutions K9AY Loop from Transmitted RF Array Solutions no longer handles the K9AY components, which actually came from K9RU's Wolf RF Systems. It looks like the ICE limiter is still out there, and reasonably priced

Re: Topband: Protecting an Array Solutions K9AY Loop from Transmitted RF

2019-10-11 Thread K4SAV
It's likely you won't need any protection from the transmitter (lightning protection may be another story). To verify this you can either use an oscilloscope on the output of the K9AY or just build a diode / cap detector and use a voltmeter.. Then ramp up the power to see how much voltage is

Re: Topband: Protecting an Array Solutions K9AY Loop from Transmitted RF

2019-10-11 Thread john
When I owned my P40A station I had a Pennant very close to my 160m TX vertical. A K9AY preamp was at the RX antenna feedpoint with voltage fed though the coax. If I recall correctly I only shorted the RX line going to the radio during TX and left the preamp running. Most of my operation

Re: Topband: Protecting an Array Solutions K9AY Loop from Transmitted RF

2019-10-11 Thread Martin Kratoska
Alan K9MBQ -Original Message- From: N4ZR Sent: Oct 10, 2019 9:30 PM To: topband reflector Subject: Topband: Protecting an Array Solutions K9AY Loop from Transmitted RF I'm in the process of building up a K9AY loop, using the Array Solutions boxes, and it occurred to me that

Re: Topband: Protecting an Array Solutions K9AY Loop from Transmitted RF

2019-10-11 Thread N4ZR
or my K9AY Loop. I think I got it from DX Eng ~ 10 yrs ago, but also chk w/ Array Solutions since I think they now handle the K9AY Loop. - Alan K9MBQ -Original Message- From: N4ZR Sent: Oct 10, 2019 9:30 PM To: topband reflector Subject: Topband: Protecting an Array Solutions K9AY Loop

Re: Topband: Protecting an Array Solutions K9AY Loop from Transmitted RF

2019-10-10 Thread Alan Swinger
:30 PM >To: topband reflector >Subject: Topband: Protecting an Array Solutions K9AY Loop from Transmitted RF > >I'm in the process of building up a K9AY loop, using the Array Solutions >boxes, and it occurred to me that I probably need to work out some way >to protect the preamp i

Topband: Protecting an Array Solutions K9AY Loop from Transmitted RF

2019-10-10 Thread N4ZR
I'm in the process of building up a K9AY loop, using the Array Solutions boxes, and it occurred to me that I probably need to work out some way to protect the preamp in the shack-end box from transmitted RF, particularly since the K9AY loop is only about 60 feet from the vertical leg of my