GREAT VIDEO! I’m a big proponent of beverage antennas for receive. A good receive antenna can make the difference between making the QSO and not making it. Great comparison video as well. Keep up the great work!
With VHF, is it even worth the trouble? Even with a very good "Beam" antenna, your not going to follow the curvature of the Earth with your signal. I've done 100 mile simplex contacts with 10 watts! But our antennas were exceptional at both ends.
This was just a test of concept with single band filters. I have since installed 2 multi band units that are switched with band data. They help for sure, high power is still difficult due to lack of antenna separation.
Do you think setting up a hexbeam straight on the rotor like that is strong enough for permanent setup? Or better use a side rotor mount? My mast is stronger than a pushup pole. 73
It was plenty strong in this configuration, I've since added a 2nd tower for the Hexbeam. It gets a bit top heavy pushing it up but once it's guyed there is no issue.
Have you tried to talk to them about it? While it is not your place to spend the money you may be better off just replacing the lights for them with a different model. I've done this with a battery charger with a neighbor. Otherwise the mfj 1026 may be a good option. the ncc2 is very expensive if you're only using it for phasing out rfi.
@@GreyGhost-r4z You may try sending them a certified letter and include the FCC information stating that intentional interference is against the law. I try to explain that I will make the fix as painless and as easy as possible but I have thousands invested in this hobby and it will be resolved in one manor or another.
Можно было удлинить горизонтальное полотно до получения R=50 Om, и далее скомпенсировать реактивность конденсатором. В согласовании останется один элемент вместо двух. У меня spider beam pole 12m работает на 160м. Вертикальная часть 12м, горизонтальная 38-40. Одно но-с берега океана. 😊
I ordered one of ldg transformers it had the chineseuim stank. So from here on ill twist my own wires. I got a cheap 3d printer so files are free for almost any type of box to hold everything
@@N9TTK I have the same question. G-450ADC reads the rotor position using a potentiometer in the rotor. I believe it's just a simple voltage divider relative to the heading. Since the ERC appears to control only the CW ad CCW switch, I don't see how it can KNOW where the rotor is pointed at. My guess is, it's operating blind with a timer, which means the heading shown on the PC (and therefore the heading ERC points at) will slowly drift based on the rotor tolerance and environmental factors. Are there additional wires you wired up to the ERC to feedback the rotor position?
@@yoheishimazaki - Those 2 wires that tap the connector (the white and brown wires he splices to on the rear connector) are actually for sensing the the rotor position feedback voltage, which is what tells the ERC what the actual rotor position is (the installation instructions make this clear). He says those are for "power", but they are not, and the docs actually say to NOT tap into the internal power supply for power -- the usb version gets its power through the USB connection, ie, from the PC you are connecting to. So, to answer your question, the ERC does in fact know the actual rotor position via those two wires. The install does require an extended calibration procedure via a software tool to be able to accurately map the position feedback voltage range to actual position in degrees.
All you have proven is the TRANSFORMER spec. The PRIMARY purpose of a balun is to allow an unbalanced feedline (coax in this case) to feed a balanced antenna. In order to do this, the balun must have a high impedance (and preferably resistive component) to common mode at the feed. You have not measured this spec or the insertion loss. Until you know the Zcm (which you can measure with the VNA, along with the S21 spec= insertion loss), you do not know if you have a balun at all. What you currently know is that it is a transformer. Hint- it is impossible make a 4:1 Current balun with a single core. So, what you have at best (and we still do not know, until you measure Zcm of the device) is a Voltage balun- which is useful in mixers etc but not in antennas.
Hi Mike, thanks for the sub! The beverages were 200' long, they have since been taken down for mowing season. I had them 2' off the ground, my NE beverage lays on the ground, I'm not sure there's a lot of difference.
Sorry I missed the comment, I downloaded from someones QRZ page. I can't remember who it was, email me and I'll send you the download file. justin.eric.ogle at gmail.com
Thank you for the tour and thank you for sharing your passion. Good to see. I love to see the inside of other operators shacks and see what they are into. 73's
Hey Jay, I must have missed the comment. The radials are various lengths. Many short 16' radials leftover from my vertical, there are also 33' and some that are 132' or so. I tried to spread them out so the long ones aren't all going the same direction.
Hi Jay, at one point I only had 8 short radials on this antenna. I was able to work EU with it still so put down what you can, your performance will increase with more radials. I still only have a handful of long radials with the majority being 16-35ft and the long ones being 100-140ft. I ran this antenna without the matching network for over a year because the lack of radials provided a closer match to 50 ohms. With the radials I'm about 25 ohms where X=0, the LC circuit brings that back to 50 ohms to make the amp happy. The low band dxing book by ON4UN is a fantastic resource as well as W8JI's website. Also checkout the K2AV folded counterpoise, I know a lot of folks running that system, I just don't have the room for it. That would take place of the ground radials but needs to be elevated. N9TTK
@@N9TTK thanks man! I’ve tried the elevated radial system but only with a city lot I decided to lay a few 160 ft radials under the wire. Looks like you have 45-50 there which is great. My antenna is a 80-10 efhw bypassing the unun as inverted L but only 30 ft high. I need to find some scrap wire somewhere and lay more. Lawn staples absolutely wear my back out hehe. Great info! I try to work at n4ss during top band Cw contest. Bryan uses this antenna at 120 ft with 64 radials and beverage antennas to eu ,ja and vk. Pretty amazing how well people hear the antenna that we can’t hear without the beverages. Maybe one day I’ll have a place in the country. 😆
Sorry I missed the comment, the box is 4 inches wide so the coil is probably 3.5 inches or so and maybe an inch in diameter. I used the sim smith program to determine the inductance needed and an online calculator to give me a rough idea of the coil. I used an LCR tester to get it close and then spread the coil once installed to fine tune the antenna. It is not perfect as I needed around 1300PF and only had a 1000PF doorknob cap. It's close enough and seems to work well.
@N9TTK radio Thanks for the information, I think once my factory warranty is up I'll try this. I have some armoloq rails on mine and a fan zip tied for heat dissipation. 73 God bless!
thanks! I've actually changed it quite a bit since the video. I have replaced the SB200 and AL80b with a Flex PGXL. It was a nice upgrade, especially with the rest of the band switching being automated.
Justin - Hex looks great! Mine is still in the "get it on the mast stage" and is only 4ft off the ground - but works. Mast is also a 28' ROHN. Hal, AF5J
The mast really starts leaning while installing so make sure to have a couple people on guy lines while you're raising it. Turns out I don't have enough rotor cable to go to full height so mine is stuck at 20'
@@N9TTK Yeah, I noticed that when I attached the 450 rotor. Realized its a push up mast and not a tilt over. Plan on raising with about 15' extended, mount the hex and then push up as high as I can, keeping it "behind" the house.
Try replacing the inverted V dipole with a vertical for Forty, the cross polarisation will help as will having the shortest leads between the tcvr and the band pass filters, preferably with good quality shielded coax ! Good luck with the SO2R its also my latest move.
@@N9TTK I'm interested on this antenna, do you have a diagram of this antenna? quite don't understand how to get the return to the same transformer. Thank you 73
@@adriansaldana7127 I'm actually using 2 separate transformers and feedline so I can listen in diversity. You're looking for a reflection transformer diagram, I think I've seen one online before. I'll look for it.
