JUst bought one of these and getting acquainted. Interesting how you were able to mount the antenna to a tri-pod in the middle of the antenna. Curious how you did that.
I’ve been fighting with RFI on my Jeep for a while. It’s almost a lost cause unless you want to sleeve every single wire and build a fariday cage around every single electrical component. I can’t even get a quiet set of spark plug wires. I ended up modifying a set of aircraft spark plug wires they are the only ones that actually are designed with RFI suppression in mind. Every single aftermarket wire I’ve tried including some that claim to have zero RFI is noisier than the OEM ones, and they were bad enough! Unfortunately without being able to run aircraft spark plugs and magneto caps you lose some of the RFI suppression that aircraft plug wires offer. I ended up giving up on mobile HF. I’m still having RFI problems with 2 meter FM. These modern cars are an absolute disaster when it comes to RFI.
@@murphybarrera3170 I have basically the same car mines a 2010 3.8 2 door manual transmission. The thing is an RF firehose! I got the ignition system quiet but literally everything else in it is spewing out RFI. I’ve given up on HF, but I’ve gotten it good enough for VHF/UHF radio. Other then the ignition system the TPMS system is very noisy but it can be shut off and the sensors can be removed from the wheels. I don’t have the time or motivation to chase down every single source of RFI, the TIPM (under hood fuse box) seems to be a big source of RFI, everything is canbus and every wire is unshielded so it acts as an antenna. There is substantially more RFI when the vehicle is moving then when it’s stopped with the engine running. The worst RFI is road speed related so I’m assuming it’s probably coming form the ABS wheel speed sensors and the related wiring and module. Being a manual transmission car there isn’t much else, however if yours is an automatic then you are going to have a lot more potential sources of road speed related RFI!
Good for you for showing your failed experiments. That's how we learn. My friend told me once, "thank goodness my experimental receiver didn't work, now he will learn something new." To me, that's the very best part of ham radio.
I'm working on this project right now. I made a crude version of this a couple years ago without access to a 3d printer. Worked pretty good with my carbon poles. I don't have an arrow antenna so I just ordered some arrow shafts on amazon and will cut them to length as needed. Thanks for the sharing the file for the part. That makes it easier to get started. Hopefully I can get it to work. I'm attempting a sota on Mt. Whitney next week.
I'm 100% phone illiterate. How are you even supposed to get this app to begin with. Also you can't zoom in to see where anything is in conjunction to where you actually are. Icons on a map can be right on top of each other but be miles apart. On top of that it doesnt display you. So lets say you need water, you would have absolutely no idea how close the water is in conjunction to where you currently are.
Ah the backside hike is dull and a long fireroad walk. Maybe I'm just young but rock scramble route is better. Hope you get to check out white oak canyon it is absolutely beautiful and nice swimming spot to cool off on hot days! Getting into HF this year and hope to start in SOTA next summer!
The Elk VHF/UHF Satellite log periodic for FM and SSB birds have all elements in the same plane and works as well as the Arrow II dual Yagi which have its VHF elements 90 degrees from the UHF elements. The Arrow II has build in 10W Diplexer which is not required by the Elk. Why does the Yagi require 90 deg phase polarization difference yet the Elk LPDA does not?
I love this design and am going to try and build for myself as the only parts I need to try it out are the 3d printed ones and the small screws to hold it together. Cheers and stay after it, Great video presentation!
"One Star" .. It is, like several competing navigation apps, pretty good at what it does, I've used it for years both for my personal outings and as a member of a Search And Rescue Team. The problems with it, and with most apps is what happens when it doesn't do what it's good at?? Then you need customer support, and in this case Good Luck. I had a pretty simple problem that I thought was only an administrative thing... I deleted the email account linked to GAIA GPS and wanted to link it to an active account. Sounds pretty simple but apparently not at GAIA. When I emailed to say that if they couldn't fix this issue I would have to cancel my subscription, since I couldn't use it. They essentially said 'Good By, come back soon'. But they didn't refund my renewal fee even though I noticed the problem and contacted them 10 minutes after I renewed. Now I have to go to my credit card company and dispute the charge... a pain to do and something that should be unnecessary!
Nice video. A question for installers out there as this is a place who has experience. I have a discone antenna which is being installed apart from metering the cable end to end for continuity inner and outa. Once connected via N type aerial end and bare on the other before going up on the wall if I meter with a multimeter the inner core should it beep out on any part of the antenna and same with the outa cable? I take it it's not a loop in anyway? Should it beep on inner core to the whole antenna? Just thinking test wise before it goes up as have to pay to take it down again if it's wrong.
Pretty decent kits. Your video came up when I was looking at videos for Trauma kits for Arborist or Loggers, to carry while in a tree or working on the ground away from the vehicle. Thanks and 73, KC0SUL
I'm looking at constructing something similar to this or K6ARK's design. How are you attaching the antena to your HT? Coax and what connectors on each end?
Thank you, thank you, thank you!!! I've been looking for a way to easily charge my qrp battery on extended hikes. This will allow me to use gear I'm already carrying! 72 de N4AAJ
I'm considering using the WRC 1000 on a Mag Mount on the vehicle roof. I use this setup with the 213" tele whip with no radials for quick 20m ops with good performance. using the WRC 1000 and 123" tele whip on a mag mount do you think radials will be needed? Thanks W1YTT 73
Very cool! I have both the Arrow and the Elk 2M/440L5 antennas. I was wondering, with the bungee corded elements do you have any problems with erratic SWR? It looks like the small amount of play where they slip together might be a problem? Great video.
I know this is an old post but for the benefit of anybody who might run into this, this is an antenna it's working at RF frequencies, this is not a DC circuit so the connections between elements don't need to be torque down, just being in very close proximity to each other they will capacitively couple. If you've done any RF engineering you'd know that in RF circuits quite often components aren't actually physically even touching they are capacitively or inductively coupled. What this means is that the parts don't need to fit really tightly together in order to get a good electrical connection because you're not really looking for a good electrical connection you're looking for a good RF connection and all a good RF connection requires is capacitive or inductive coupling. Now with that said come on an excessively loose element could generate popping noises on receive and if you're working in full duplex mode you could wind up with duplex noise, but the elements would need to be relatively loose for that to occur..
A great navigation tool.... but is missing several VERY IMPORTANT features (offered by most all other platforms), including line thickness, order of visibility, and keeping the same area of view when navigating folders. Users have been asking for these bugs to be fixed for years, but GaiaGPS has almost never responded, and when they do respond it is with platitudes that they might think about possible considering it some day down the road.
Nice video Stuart, I really like that PD concept. Now that you have been operating with it for awhile I have two follow up questions. First what is your operating time looking like with the KX3 and what is your preferred power output? Second, you had mentioned that the PD setup outputs 12.4v. How does your MTR5B seem to like it? The second question is probably more important to me as I am thinking of getting a MTR4B-v2, which I understand to be a little more forgiving on the voltage. 73
Thanks Jose. I tend to run 5-10W on CW and my average time ranges 30 min to an hour. My MTR is fine with it. I do have my end fed dialed in to reduce out of whack SWR issues which could harm the MTR (one of its' minor defects IMHO). 73
Hello Stuart. Do you have any information as to where to buy the parts to make it? This antenna was what I needed for my recent trip. Check the SOTA group for my post, about Kamuk. 73, TI2MOT
