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Antennas, Feedlines, Towers & Rotors

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Using a Kenwood TS-590 and DX Engineering RF-PRO-1B Magnetic Loop

Posted: 19 Feb 2017 07:17 PM PST
http://forums.qrz.com/index.php?thre...c-loop.555988/

Anyone here have first hand experience using a Kenwood TS-590 with the DX
Engineering RF-PRO-1B Magnetic Loop?



I have been unable to get the relay actuation circuit to turn off the
antenna pre-amplifier when I transmit. What menu items did you turn on/off
with the TS-590? Did you use the "DRV" connection? Or something else?
Did you have to change the dip switches inside power inserter?

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hamstick , help identify

Posted: 19 Feb 2017 06:32 PM PST
http://forums.qrz.com/index.php?thre...entify.556021/

I have two hamstick bases that have no markings.

the measurements, taken from the top, where the whip would be inserted,
down:

Base one Base two



8" 10" single wire spiraled on
main shaft

9 1/4" 2" solid section (loading)

31 3/4" 38" single wire spiraled on main
shaft

49 3/4" 50" total length from top (where
whip inserted) to top...



hamstick , help identify

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Help

Posted: 19 Feb 2017 04:35 PM PST
http://forums.qrz.com/index.php?threads/help.556080/

I like to know how to make a dual polarity sector antenna for my Rocket M2

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In Search of an RF Switch Design for Software-defined Resonant Antenna

Posted: 19 Feb 2017 02:30 PM PST
http://forums.qrz.com/index.php?thre...ntenna.556064/

Hi,



A while back an ambitious new antenna project was kicked off to
research "software-defined resonant antennas" (SDRA), in order to create
resonant, high-gain multi-band antennas that have no mechanical moving
parts, are always resonant (no transmitter matching tuner) and software
controlled for auto-tuning. Essentially, software detects the latest RF
signals "band" and then automatically re-tunes the antenna by...



In Search of an RF Switch Design for Software-defined Resonant Antenna

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Using a dipole as a ground plane

Posted: 19 Feb 2017 01:02 PM PST
http://forums.qrz.com/index.php?thre...-plane.555272/

I know that this is probably a stupid question but I was thinking about
installing an antenna system and this thought came to my mind. If I had a
40 m vertical antenna mounted on my roof could I use two dipole antennas
one oriented for a north south radiation pattern one oriented for east west
would function as a ground plane for a vertical. Again probably a stupid
question it was just an interesting thought