AFTER CHAT: Why You Want A Radio Service Monitor!
ฝัง
- เผยแพร่เมื่อ 16 ก.ย. 2024
- Some good ham radio friends, @HamRadioDX and @TheSmokinApe join me on the show tonight to explain why a service monitor is something you our your club should purchase for ham radio testing!
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Great after chat! Sorry I missed it LIVE, especially Watching Josh heard cats, Maintain composure, and answer questions while debating Mike......Dad of the year!.
That knife show was AWESOME!😂 They almost had me about to buy an entire package and head to my flea market to become a millionaire!
⚠️ Nice video Josh. I have a GREAT TIP! (hopefully great - LOL)
I’ve been working on an EMP “solution” for my entire family and found an EXCELLENT item to add to any kit and even for daily use.
1. USB-C to selectable “Triggered” PD output. It’s a tiny device (1” x 2” x 1/4”) with a short 12” permanently attached cable w/USB-C connector on the end. There is another cable coming out of the device. It’s 3’ long and has a “DC coaxial plug” (5.5mm x 2.5mm). (note: it’s a plug that does BOTH 5.5mm x 2.5 AND 5.5mm x 2.1mm).
It provides DC output from USB-C input. 5VDC / 9VDC / 12VDC / 15VDC / 20VDC at up to 5A !
The amperage spec is exaggerated as always with Chinesium gear. While it will put out 4.6 amps max, I would definitely stick with 3a max under constant use.
There is a button on the unit that allows you to change the output voltage. It does NOT remember settings which is intentional. It always reverts back to the lowest output voltage. This hopefully helps prevent damage from over voltage to the item being powdered.
It’s so damn impressive! It’s actually very nicely made for a pleasant change and works phenomenally well.!
I tried over 11 separate USB to 12 VDC cable assemblies from Amazon. Most could only provide 1 amp or less and all provided very “noisy” power out. They also generated enormous amounts of heat. Most of the ads are total bullshit but Amazon has a great return policy (for now - eventually that’ll stop once they destroy the rest of small business).
I WAS planning on using these little gadgets for “survival” and “disaster” sorts of situations.
Used with lithium battery banks equipped with USB-C PD or even “regular” USB “A” with PD (it comes with a USB-A to USB-C adapter that lets you use this with virtually any USB power source. If you use it with a small or old power bank without the “PD” feature, it will simply pass only 5VDC through.
I ordered 8 more of these to add to our comm kits to power: Portable radio desktop battery chargers. Motorola’s APX and XPR radios have a desktop rapid charger with 15VDC / 2A input. ALL Hytera portables (except the oddball tiny little models 260 or 365? that have USB-Micro built in) use a 12VDC / 1a source for their desktop chargers. Most of my other gear has been equipped with PowerPole connectors and I’m currently building a bunch of adapter cables to permit them to work.
But… after using them, I was so pleased that I am now carrying them with all of my gear. I’m now able to power virtually everything I have now with this gadget and a small USB-C PD lithium battery bank.
Sorry for the long length of this post, but I really wish I had come across this device years ago.
Thanks for the videos!
Yikes! I completely forgot to include the details on the actual device.
There a huge amount of these types of devices on Amazon, eBay and other retailers.
I’ve tried a ton and only one worked well.
“FARSENSE USB C to DC Adapter,Barrel PD Trigger Cable(5ft) with 10 Connecor Tips….”
$13.95
They have 2 separate packages… the bare device/cable only @$11.95 and the above one which also includes a set of adapters to change from the 5.5mm x 2.5 male power connector to one of a dozen or so other power connector types.
This full set is only around $2 bucks more.
I’m so surprised that something this cheap has the ability to do so much.
I totally forgot…
Surprisingly, this little gadget was able to supply proper voltage and current to functionally and (hopefully 🙄🤣) safely power up my Agilent N9340b spectrum analyzer! I sure was gambling on this one - - that spectrum analyzer was over $11k when I bought it. Looking back, I should have never taken a chance like that..
The spectrum analyzer requires 15VDC with a max current draw of 1.75a. One of the output settings of the above gadget is 15 VDC and the current output is variable up to 5A.
I was at my brother’s home to wrap up a repeater installation last week. He’s adding a DMR/Analog repeater to one of our family IG (“business band”) licensed freq pairs and I brought along a “real” duplexer (Fingu/Motorola OEM BpBr UHF) to replace the crappy Chinesium mobile/notch duplexer that he’s been using for a while now. It’s a 30w “Amazon Chinesium Special” Funei unit that I had tuned up and left in his “Greenlee Faraday Cage” for use in emergencies. The Greenlee unit is another great concept for EMP protection. It’s a “job box” type thick steel box made to hold and secure tools on a job or construction site. We sanded the green paint off the seams and edges of the hinged top lid and it keeps RF out.
We actually tested it by leaving a spectrum analyzer inside and closing the top lid. Configured with a frequency range from 1Mhz to 6Ghz, it saw NOTHING from the outside world! Without the special electrically conductive gasket material we bought from the foremost EMP expert on TH-cam. He’s got a great site and store.
The Greenlee… the size of a chest type freezer.. approx $500 delivered from Home Depot.
We bought them back in 2010, so they might be more expensive now,but an excellent idea.
In addition to the Greenlee boxes, definitely get a smaller steel “garbage can” type Faraday Cage for the portability feature.
How would any of this prevent damage from an EMP??
Im working on getting my technician and maybe the general around the same time. Regarding to conversation around 2:44:00 FCC rules are not law. I think the FCC is mainly concerned about people that are running a broadcast on ham frequencies to make money. I just couldn't imagine them caring about any of the other small stuff.
So, answer me these: (I actually have 2 old CT systems 3000 series, 2 old IFRs 1000/1100S, and 2 Motorola 2002D/ 2008D etc series. WHAT ARE YOU SUPPOSED TO DO with the big thrill with "digital?"
And why do people need a service monitor, when most hams DON'T KNOW a good or bad signal WHEN THEY HEAR IT?
Around here, 2M is nearly a cemetery. "We" have a traffic net every night--where no traffic is ever handled, in once case a family checks in about 8 hams to raise the total, and they could not handle more than 1 piece of traffic between them. There's some ham down in a hole with no signal that used to check in with (net) "That you chuck? Click your mike twice" AND SURE ENOUGH ----squisssssqk ---squissssskzzzz and "OK you're checked in". (How do you handle emergency traffic like that?
Are you kidding? Reading electronic schematics is an old skill? That’s how electrical engineers work. It’s not an old out of date skill.
As a former chemical engineer, who has been teaching himself electrical engineering, (I designed and built my own tattoo power supply, bench power supply, and a few other very elementary projects, after speaking with people all over the world in different languages but they all use conventional circuit and can share circuits without need to translate anything. Science and math being a human race wide communal language is beautiful to me. We need more things to bring the world together as one people, not find ways to further seperate us
O
I’m am electrical engineer and I read and look at schematics almost weekly.
I was still taking drafting in high school in 2007. I even had my father's mechanical pencil. I wouldn't be surprised if he's got an electric eraser. He's an EE that started in the 70's or so. He used to fab up cases for the circuit boards he designed. I even got to assemble some of the boards he made at one point when he was working for a smaller company.
As for the 1" conduit mast question. I was running a 1" EMT mast with 20M & 40M dipoles (the other ends go to a couple trees) and a Diamond X200 on top. I used a wall TV antenna mount about a foot and a half down from the peak of my house. I did put a guy wire with a turnbuckle opposite the dipoles to help it out and it's actually bent in the direction of the guy slightly. The 1" did fine here in NJ, through snow and wind for a few years, the trees I picked don't sway much. That was until a tree came down across the dipoles and bent it over, now I put a 1.5" stick up there. Although I think the dipoles survived because it worked like a failure point and relieved the tension of the tree. YMMV
I am sorry I missed this conversation that started out about the Buddi pole. I am with Adam lol go with an efhw or OR a G5RV. I worked some serious DX with a 100 Watts and G5RV and everything in between from western colorado.
Did you and your boys ever finish the Star Trek communicators?
Awesome thanks VP8A
Mike has a brother!!!!!!!!!!!!!! OMG!
An FT-710 has a service monitor . When you key your mic you can see on the oscilloscope display your microphones audio.
nope- Miller High Life (love the hoppy taste),
The knife show is on an info channel most of the day, channel 227 on my direct tv
I miss my slide rule. It was great. It's a shame people steal. I used it, and it was always awesome, showing people how it worked. Folks thought I was a genius just because I accepted the math and how to use the thing. Damn I miss it. We had a very old school electronics class in college. They no longer have any courses, and I can't even buy the old gear that they were throwing away. I offered to teach a couple of classes, and I haven't heard a damn thing about my proposal.
Can I use the Nano VNA to calibrate my analog SWR and power meter test equipment?
Ape will like the Rigexpert when they come up with Farms On The Air (FOTA)
I'm a 20wpm extra. I've always supported no code and rtty other than baudot. I thought by doing that, it would help bring us together rather than tear us apart. But here we are. We'll be dead soon and you'll not have to put up with us anymore. I can still pass the exams as I take sample tests. Tech, general, and extra. I love the hobby although I don't have the time for it much anymore since my xyl's health is not so good. Good luck with getting a million subscribers ragging on people you want to subscribe. Tearing each other down and bragging that you don't know what we know is not becoming of a goodwill exercise.
I thought this was going to be a nice comment, but no, the expected twist at the end. You come out as a curmudgeon.
May I ask, how did you help educate the hams of today and tomorrow? Why do our TH-cam channels exist if all you, smarter than Marconi, hams with your vaulted up wizards towers of knowledge did such a great job sharing it?
BusdriverRFI is clearly just a troll 🧌.
73
Unless you're a teacher, then you can be underpaid to be on the air. 😉
You still have me blocked!