Justin Johnson - G0KSC

Ham Antenna Designer - Inventor of the LFA Yagi - ARRL Antenna Book contributor - Over 50’s bodybuilder and fitness fan

[Justin Johnson - G0KSC @G0KSC]

https://t.co/3qq6XDRwog

[Justin Johnson - G0KSC @G0KSC]

23:38 and no information from @easyJet @easyJetholidays about the flight that should have left at 18:45. Young families with babies young as 6 months with checked luggage they have no access to with baby food - incredible poor performance 23:40 14/10/2024

[Justin Johnson - G0KSC @G0KSC]

@easyJet @easyJet_press @easyJetholidays BEWARE if considering easyJet for a flight or getaway. We are in Alicante Spain for a flight to Southend at 18:45. Flight showed as delayed on easyJet app and in airport to 20:48. No further update in app nor airport and 22:19 HELP!!

[Justin Johnson - G0KSC @G0KSC]

Made the mistake of moving to Lyca Mobile. Roaming does not work, authentication requests refused. Lyca has only basic level support. Below is an example of what happens when you have done all their basic checks and it still does not work. #OFCOM #lyca #lycamobile

[Justin Johnson - G0KSC @G0KSC]

A nice little 50el 70MHz OWL. Scans from AN-SOF and the analyser show just how close prediction gets these days. https://t.co/R1wYJn13w0 #innovantennas #hamr #hamradio #antennas #antennadesign

[Justin Johnson - G0KSC @G0KSC]

@robswainept Depends how much you want to maintain and how old you are, diet, protein in take and bioavailability etc. So many factors missed. at least room for 3 to 10 to be added #notallthefacts

[Justin Johnson - G0KSC @G0KSC]

This little LFA-R (driven element and director) is just 50cms long and yet has stunning performance all be it a little narrow. Ideal for digi modes on the 8m band #40mhz #hamradio #hamr #antennas #AmateurRadio

[Justin Johnson - G0KSC @G0KSC]

Something new to come? A new, lighter and improved 5el 50MHz Low Noise LFA Yagi - The LFA-4. 4.3m boom . No matching device so no matching losses. closed loop feed with DC ground means a quieter antenna with RX protection and Band Pass Filter (BPF) characteristics #hamr

[Justin Johnson - G0KSC @G0KSC]

A nice little 4m OWL Yagi. 1.5m long, 8.5dBi and 31dB F/B. Only 1.5kilos too #hamr #antennas #hamradio #amateurradio

[Justin Johnson - G0KSC @G0KSC]

70MHz 3el Slot complete and looking good #hamradio #hamr #antennas #AmateurRadio

[Justin Johnson - G0KSC @G0KSC]

3 el 70MHz slot. Only 42cms between reflectors and the loop and loop is 1.43m high. Gain is an impressive 8.2dBi and over 20dB F/B #70mhz #hamr #hamradio #antennas #antennadesign #amateurradio

[Justin Johnson - G0KSC @G0KSC]

@LEO_GSaaS Ideally, avoided matching at the feed point. especially when it results in the dipoles extending into the opposing field of the other side of the antenna. This will decrease performance and increase noise.

[Justin Johnson - G0KSC @G0KSC]

A 70MHz LFA-Q twin boom quad! https://t.co/R1wYJn13w0 #hamradio #hamr #antennas #AmateurRadio

[Justin Johnson - G0KSC @G0KSC]

4m open in EA5 today #70mhz #4m #vhf #ftdx10

[Justin Johnson - G0KSC @G0KSC]

A nice little 14el low noise LFA Yagi for 222MHz completed. #222mhz #vhf #hamr #hamradio #amateurradio #antennas

[Justin Johnson - G0KSC @G0KSC]

Using a rear splitter mounting bar (particularly on 70cms) ensures all cables remain short and thus losses reduce. https://t.co/R1wYJn13w0 #hamr #hamradio #antennas #amatuerradio #70cms #eme

[Justin Johnson - G0KSC @G0KSC]

Ideally X-pol Yagis will have a non-metallic cross-boom and coax will exit the rear of the antennas #hamradio #hamr #antennas #AmateurRadio

[Justin Johnson - G0KSC @G0KSC]

A nice shot of one on my twin-boom 144-146MHz LFA-Q 'quad style ' Yagis. #hamr #hamradio #antennas #amateurradio https://t.co/R1wYJn13w0

[Justin Johnson - G0KSC @G0KSC]

This antenna was the starting point of my HF BOLPA Log Periodic range. square booms as the feed lines with half element sections altering between top and bottom boom to adjust phase. #logperiodic #logp #antennas #hamradio #hamr #AmateurRadio

[Justin Johnson - G0KSC @G0KSC]

The wife and I strolling around Alicante, Spain today #Alicante #spain #vacation #holiday #may2023 #funtimes