TSXV: EHT
EnerDynamic Hybrid Technologies Corp. has installed its proprietary wind system with Telenor Group at a base transceiver station site which is located approximately 10,000 feet above sea level in Pakistan. They installed the system through their business unit, Windular Research and Technologies, whose other clients include Telenor Group and Bell Canada.
"Telenor Group is a leader in the mandate towards Net Zero Sustainability and have engaged Windular to not only provide our wind system but also implement further technologies including proprietary solar systems and enhanced R-thermal solar shelters. This is an incredible opportunity for the Company with one of the world's major mobile operators and just the first step to satisfy their public ESG objectives,” stated Jerry Foster, President of EHT and Co-founder of Windular.
Source: https://ca.finance.yahoo.com/news/eht-windular-division-installs-proprietary-110000234.html
Not financial advice.
Hey HAMs!
Sorry about the long post in advance! I passed my HAM radio technician's exam (united states) this last Friday and am now starting the venture of finding a radio, which is a bit overwhelming due to so many choices. The only thing that has been helpful is I think I'm going to skip on a mobile station and focus on a base station at this time.
I haven't found an Elmer and none of my family members/friends has any experience with radio, so I doubt I'll go for the general exam until I have about a years worth of practical experience under my belt (reading is one thing, but doing always helps me understand much more). The HAM club in my area doesn't seem very active nor do we have a local HAM shop in my city or a city near by, so I am kinda going a bit on my own. What makes things a bit weird is when I make purchases I usually try to save up and spend my savings on a "longer term investment" where I know I'll be able to get a lot of use out of it and continue to learn, so I'd rather jump into something that is going to challenge me vs continually step up radios (maybe this is the wrong approach?).
In this case, I was eyeing something like a Yaesu FTdx-101D, as it looks like it has some great "guts" when it comes to processing, love that it is loaded with physical buttons, like that it has the ability to have an add-on to be used remotely if I travel, and the capabilities itself overall look like they could challenge me for a really long time to fully understand everything in the art. However, looking closer I noticed that it doesn't support any VHF/UHF bands, so not sure how useful it would be with only my technician's license. Given this, would a better radio be something like that the FT-991A? I see a ton of people go with the ICOM 7300 (which looks like it's mostly HF as well), but I've heard the Yaesu products might have a few more capabilities to fine tune what you want to do (which could be a really good learning experience).
Appreciate any thoughts in advance!
I've read that RF grounds are only required for some kinds of antennas, and that safety grounds help insulate operators from dangerous voltages caused by faults. My current train of thought is that lightning protection is as simple as placing a lightning arrestor in line with my feed line, and mechanically bonding the arrestor to my utility ground rod.
Does this sound accurate? Or do I still have a bit to learn?
Is a lightning arrestor really enough to protect the equipment connected to the antenna?
Here's a diagram detailing what I'm thinking to start with:
https://preview.redd.it/pebfnrwebjr51.png?width=936&format=png&auto=webp&s=4f044cecfbf5e2c1e4df7a3c550256d6d3a9f1c3
As I am upgrading my homelab infra to expand my load testing abilities for my open source project cachegrand I am looking for some networking equipment!
Below the list:
- 1 x 16 x 10Gbe SFP+ or 8 x 10Gbe SFP+ ports switch, for example a CRS317-1G-16S+RM or CRS309-1G-8S+IN
- 2 x 10Gbe base-t SFP+ transceiver
- 4 x SFP+ DAC cables
- 1 x 2x10Gbe SFP+ NIC or (even better) a mellanox 2x25Gbe SFP28 NIC, preferably with the half height bracket
I am located in Ireland but I am happy to cover the costs of international deliveries.
It's my understanding that a SFP28 nic it's compatible with an SFP+ cable and will simply run at lower speed, if not and I am asking for something that will not work please let me know, happy to fix the post :)
I'm trying to move up from the uv-5r to a mid level unit but don't really trust the massive online dealers as far as price goes.
I've gotten a second handed Index yesterday, barely touched for roughly 650$, I'm still using 1.0 base stations. and it seems like the index keeps losing tracking and getting into a Grey screen pretty frequently, any idea on how to fix it, or what could cause it to happen?
I'm designing a weather station for remote hang gliding and paragliding sites that lack on-site electricity and/or LoS to any internet connection. I'm planning to use 2 meter APRS (which supports weather station data natively), and I may also design an inexpensive, free standing APRS digipeater that can be set up easily on high terrain to relay the weather station's signal to the wider APRS network.
As these will be used by individuals or small non-profit clubs that are usually on a shoe string budget, I'm trying to keep the cost to an absolute minimum. One of the single most expensive components in the whole system is likely to be the transmitter. The Radiometrix HX1 would be ideally suited, but at ~$40 each, it would be nearly 1/3 of the target unit cost by itself. I've stumbled on these DRA818V modules (PDF warning) that go for about $10 each, and are based on the RDA1846 chip. They would serve the purpose quite nicely if they're reasonably reliable. I suspect they won't meet FCC emission standards but I'll put a good LPF on the output if necessary.
I've found a few project write-ups that use these modules but none so far have gone into the care and feeding. How clean is the output, is the specified power output realistic, are they a massive pain in the ass to use in some unimagined way?
Anyone have any experience or seen any particularly well documented projects that utilize them?
I'd also be interested in alternative transmitter options that can operate in the 250mW-1W range on 144.390MHz either FM voice or AFSK. I seriously considered bulk buying Baofengs, but they are power hungry beasties, and these stations are likely to be solar powered.
