Geoffrey Preston's Discussions (26)

Discussions Replied To (15) Replies Latest Activity

"Inverted V is a dipole forming a slight "V" in order to create a load impedance clos…"

Geoffrey Preston replied Feb 20, 2014 to 915mhz Telemetry

10 Feb 20, 2014
Reply by Geoffrey Preston

"An inverted V is horizontally polarized with the elements parallel to the earth. You…"

Geoffrey Preston replied Feb 19, 2014 to 915mhz Telemetry

10 Feb 20, 2014
Reply by Geoffrey Preston

"The interference can be minimized by separating them apart as far as possible. One f…"

Geoffrey Preston replied Feb 19, 2014 to 915mhz Telemetry

10 Feb 20, 2014
Reply by Geoffrey Preston

"It seems like we can’t cram enough electronics into our UAVs. You might get away w…"

Geoffrey Preston replied Feb 19, 2014 to 915mhz Telemetry

10 Feb 20, 2014
Reply by Geoffrey Preston

"And you thought aiming a dish or multi-element yagi was going to be difficult. Benef…"

Geoffrey Preston replied Sep 11, 2013 to laser Antenna?

4 Feb 2, 2014
Reply by Kirbinator

" Could be anything causing the problem. My guess is poor antenna connections. Most a…"

Geoffrey Preston replied Sep 6, 2013 to 5.8 and 2.4 signals in close proximity

7 Sep 8, 2013
Reply by Oliver Wetmore

"I think you may be on to something when you said that you're receiving a signal on a…"

Geoffrey Preston replied Aug 26, 2013 to 5.8 and 2.4 signals in close proximity

7 Sep 8, 2013
Reply by Oliver Wetmore

"Hi. Looks like your receiver antenna is nearly touching the 5.8 video antenna. That…"

Geoffrey Preston replied Aug 26, 2013 to 5.8 and 2.4 signals in close proximity

7 Sep 8, 2013
Reply by Oliver Wetmore

"  Smaller antennas aren't better antennas. They require more power driving them for…"

Geoffrey Preston replied Aug 25, 2013 to Parabolic Reflector behind Cloverleaf to increase distance?

6 Feb 2, 2014
Reply by Kirbinator

" My own home made 5.8 ghz helical for feeding a dish. Geoffrey"

Geoffrey Preston replied Aug 23, 2013 to Parabolic Reflector behind Cloverleaf to increase distance?

6 Feb 2, 2014
Reply by Kirbinator

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