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OH3SPN FINLAND
OH3SPN FINLAND
OH3SPN FINLAND
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QRM Startup Captured
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How to Identify Local QRM/RFI Sources
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Комментарии
@aceventuraaceventura2003
@aceventuraaceventura2003 7 дней назад
817ND with BHI DSP is one of the most understated, underrated QRP in the second hand market, bar none. The versatility of this little gem are appreciated by hams world wide! Couple it with a Tokyo HyPower 45B amp (out of production) and you have a formidable HF rig that is about the size of a hard cover book.
@Wavelength7mhz1
@Wavelength7mhz1 8 дней назад
You should save money for a Mercury Lux for the Hermes. I already owned the 7300 and all these Yaesu's then i learned about the Hermes Lite 2 and decided to give it a try and omg I can't go back to the other radios comfortably I'm hooked probably be liquidating most of the knobs !! 73
@dannelson8556
@dannelson8556 15 дней назад
It's so sad that they're actually people who think that this is a good antenna comparison, what this actually is is a perfect example of subjective personal opinion by someone who does not understand the characteristics of different antennas. AB testing of antennas is about the most worthless way of testing an antenna. You're actually trying to compare a horizontally polarized dipole with a vertically polarized antenna using on the air signals with no idea where they're at. This is really the end result of the dumbing down of amateur radio. I suggest you look up L.B. cebik WRRNL sk and do a bit of studying. Because that's what this is lacking it is lacking a basic understanding of antenna fundamentals. Of course the vertical is going to have a higher noise floor, man-made noises almost always vertically polarized. The one thing you're ignoring is that verticals have a very low angle of radiation. That means that the signals is picking up are very low on the horizon where everything man kind makes is. This is good not bad because for DX what you want is low angle radiation. A vertical antenna is not going to be very good for domestic local Communications on HF because it has a low angle of radiation. For local Communications you want a dipole because it has high angles of radiation. Anyhow I can't believe I'm explaining basic antenna Ferry on a RU-vid video that purportedly demonstrates antenna performance. Do us a favor redo this experiment with a DX station that requires a takeoff angle of somewhere between 10 and 12° and compare the vertical to the dipole on signals arriving at that angle.
@bigdaadio.K2WW
@bigdaadio.K2WW Месяц назад
I truly appreciate your effort, BUT... Height makes ALL the difference. Get that antenna as HIGH as possible, but ANY antenna in the air is 120 db better than one on the "shelf" not hooked up.hihi 73 K2WW
@desertranger
@desertranger 2 месяца назад
Try this distro: "Andy KB1OIQ HAM radio Linux" based on Xubuntu. It has EVERYTHING you need for Amateur Radio Linux.
@tejpalsingh4860
@tejpalsingh4860 2 месяца назад
I have an issue like the IR blaster stays on all the time and if a button is pressed the IR turns off...this has happened after a incident of battery leak, and now I'm not able to operate the SONY home theatre DVD. Can anyone shed light on this issue.
@goeministriesnc
@goeministriesnc 2 месяца назад
Wish I would have seen this when I started. Also, my AGC doesn't have an off option when I toggle.
@donaldsmith3048
@donaldsmith3048 3 месяца назад
Thank You for this Info. I am just starting with JS8Call 73 W4DES
@DennisFranssen
@DennisFranssen 3 месяца назад
Thank you for this video! I am looking on running it on an real Amiga. I got a MFJ TNC modem and an Amiga 1200 with a pistorm. I'm in the process of getting a licence for permanent bbs like operation you gave me even more inspiration to do this on my Amiga! :)
@jeff-73
@jeff-73 4 месяца назад
Fantastic vid. You are really good at explaining the whole deal. thx
@kq6up
@kq6up 4 месяца назад
I am going to have to try that socat trick as it looks handy as all get out. It would probably work for a real TNC hooked up to a real serial port as well. That would be to allow access to a serial port on another machine. 73 de Chris KQ6UP
@bhamptonkc7
@bhamptonkc7 4 месяца назад
all I see is computers talking to other computers that reply to other computers.
@DK5ONV
@DK5ONV 5 месяцев назад
Hello Steve, may be you can help me to solve a Problem with my IC-7300 using the CG-3000 with the matching Remote Control Box for iCOM...? Here is my Story: Here is a funny Story which is actually not funny. On my IC-7 2 0 0 the CG3000 with the Control Box works fine. On the IC-7300 the Tuner makes energizing Noises but cannot find a Match. And the Green OK Lamp on the Remote Control never flashes because the Tune Proicess does not stopp. I checked all Tuner Settings in the Menu of the IC-7300. I cannot find the Problem. I am sue this has worked before with the IC-7300. when i bought the CG3000 2 Years ago. I was just not using the Combination IC-7300 + CG-3000 CTU for a while. May be you have the Answer what I am doing wrong...? 73 de Your Friend Günter 💯🙋‍♂
@joebirdwell5071
@joebirdwell5071 5 месяцев назад
Thanks I will be putting up a horizontal dipole this week! You have a beautiful home and lot. I wish I was on a lake! WB9VVH in TN. USA
@NavyFE
@NavyFE 6 месяцев назад
Great video! Thanks for sharing
@Yosemite_Sam
@Yosemite_Sam 6 месяцев назад
I bought an Apache Labs Hermes late 2023 production run and run it with Thetis and a 500 w amp. Head and shoulders above the IC7300. The biggest advantage is the in depth capability of the software frankly and playing around with dozens of settings won't suit everyone. However you have menus and multifunction knobs etc to work with on all modern radios
@mikesmith1290
@mikesmith1290 6 месяцев назад
I have a cheap GoPro knockoff that I’ve removed the IR filter from the sensor. It displays IR signals nice and bright on the lcd display
@iw7dny
@iw7dny 7 месяцев назад
the bandwidth on sdr receiver is 2.49 .
@elesjuan
@elesjuan 7 месяцев назад
man.. I wish my noise floor was an S5... Most of the time on all HF bands it's 10-15 over 9. Haven't been able to REALLY test if its coming from my own home or not, despite having turned off the mains breaker in the panel, but that doesn't completely kill everything in my hosue as I've got several UPS devices (which are probably also responsible for noise) on a server rack in my basement, my main tele, office PC, my 3d printer..... UGH. Maybe sometime this winter the power will go out and I'll break out my FT817 before bringing everything back up.
@chublez
@chublez 6 месяцев назад
Can you not shut off the UPS's also? They can usually be turned off. I turned mine off when hunting noise.
@jamesanderson3799
@jamesanderson3799 7 месяцев назад
Not on the google play store
@user-ss6zt2mo1l
@user-ss6zt2mo1l 7 месяцев назад
Try running those Mics thru a “Studio V3” preamp.
@schwellenkleineisen
@schwellenkleineisen 8 месяцев назад
habe heraus gefunden das die antenne ihre wirkung zeigt wenn man sie auszieht . und dann geht was 73 Tom DG1XT
@northmanproject4007
@northmanproject4007 9 месяцев назад
Thank you for that explanation! I will start to leave my own node up 24/7 as soon as possible. I'm trying to get my family set up in another state. I'm not sure I will be able to reach them directly but it's nice to know that this is an option.
@robertw5iua938
@robertw5iua938 9 месяцев назад
The TX audio on the 7300 is fantastic. I just ordered an HL2, and my plan is TX 7300, RX HL2/Thetis. That should be incredible.
@3v068
@3v068 9 месяцев назад
I have a 15 year old laptop from my brother in law given to me for free. I put linux mint on it, got SDR++ and im on my way. Definitely easy to install and get up and running for receiving.
@FilipeJorgeSilva
@FilipeJorgeSilva 10 месяцев назад
It's possible to do Star with 7300 ?
@seeharvester
@seeharvester 10 месяцев назад
It's probably the heating system next door. Some sort of faulty circuit. Could be dangerous. His house could catch fire and burn to the ground. You never know. BTW, I know a guy who knows a guy that might could help you out. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ZPtjyqgZAUk.html :)
@-VK2NP
@-VK2NP 10 месяцев назад
Decided to give Quisk a go after watching, compiled it ok on Debian 12, had trouble getting Cat to work but found Quisk not only sets up 2 virtual digital audio but also a temporary Cat /tmp/QuiskTTY0 Now running WSPR etc from WSJTx 73 VK2NP
@allanjones4283
@allanjones4283 10 месяцев назад
Wonderful work. Hope you're well and in good health!! ;-)
@allanjones4283
@allanjones4283 10 месяцев назад
Sorry to hear matey. Your videos are hands down the best I have found as a new HAM... I hope you are OK and all is good. 73
@allanjones4283
@allanjones4283 10 месяцев назад
Brilliant video matey!! Thankyou 🙂
@bawanazad4997
@bawanazad4997 11 месяцев назад
My friend let me tell you one thing , nothing destroyed hf more than LED lights ! I have no hf signal since 2015 here in my city in Iraq ! I can say RIP hf
@carl-gunnarhillefors7612
@carl-gunnarhillefors7612 11 месяцев назад
GET A EFHW FOR 40M/15M AND HAVE THAT INSTALLED ON A REAL DISTANCE FROM YOUR LAPTOP!
@carl-gunnarhillefors7612
@carl-gunnarhillefors7612 11 месяцев назад
LINUX MINT VERSIONS 19/20 AND LATER IS VERY LIGHT TO UNDERSTAND AND GET A GRASP OF! THANK YOU FOR YOUR EXPOSÈ!
@rrock3957
@rrock3957 11 месяцев назад
very good rambling…makes good sense. i like your antennas. have relatives in the Ålands. 73
@mattbates6887
@mattbates6887 11 месяцев назад
That QRM could be coming from either an LED bathroom vanity mirror, or possibly a solar panel installation. I get similar QRM to that on 40, 60 and 80M, and it definitely is an LED bathroom mirror. Obviously a cheap bathroom mirror with the mains filter components missing.
@Safenick
@Safenick Год назад
Watched two years after OH3SPN published the video and glad to hear your antenna advice--you have a beautiful garden. 73 from KI7YWO in Tucson, AZ. Get on the air is best advice.
@191...79
@191...79 Год назад
Being new to Js8 I have to say this was the single most complete and informative discussion of the heart beat and its function I have come across. Thank you sir.
@dienadel30
@dienadel30 Год назад
Any antenna is better than no antenna.
@nine7295
@nine7295 Год назад
If you like the Hermes-Lite, you might like the Elad FDM-DUO, which I bought recently, after considering the Icom 7300 for the longest time. I suspect it is still very competitive. I bought a JUMA PA-100D amp to accompany it also. Also, since your video, Yaesu came out with the 710 that sends some vibes around. Hope you will make an update to this video in the future. By the way, the Elad can be run stand alone or run completely on a PC.
@suspiciouswatermelon7639
@suspiciouswatermelon7639 Год назад
I have a 817ND. What a dog crap radio. Do not recommend at all. Too many quirks for it to be usable. It astounds me how many people buy them.
@DXJungle
@DXJungle Год назад
Great radios! 🏆
@StephenCooteNZ
@StephenCooteNZ Год назад
Thank you. Best wishes from New Zealand.
@johntrott9513
@johntrott9513 Год назад
I ran one of those tuners on a near 10m pole. I helically wound the wire rather than just running it up the side or middle. I also ran random radials all over the place. It was about all I could afford at the time but was great value as I could work all the HF bands. Was also my first experience with HF. I passed the Novice in the 90s we weren't allowed on most of the HF bands back then. So yeah coming back 20 years later and working HF was a magical time for me. John 2E1HEL
@Francois_Dupont
@Francois_Dupont Год назад
sorry for you, but it is not your QRP status that is the problem here... your antenna is big garbage. i have a cheap chinese QRP radio (uSDX+) that TX@1.5W and i make contact all over the world everyday even when the band are at the worst. if you hear plenty of people, but you cannot even make 1QSO it is proof that something is very wrong with your setup.
@RedHeat
@RedHeat Год назад
New mode: Packet IL2P might be interesting for you to play with next :-) Weekend contesters demonstrate poor etiquette behaviour all round on the packet QRGs :-( IL2P is turbo charged RS hardened, and still AFSK300/1200. Its not backwards compatible with AX/FX25. Pop in sometime for a primer. - 73 PE1RRR
@abhay109
@abhay109 Год назад
Thank you for explaination
@gnormhurst
@gnormhurst Год назад
Automated? It's not automated. There are a whole series of steps I must take just to send and receive messages through the network. I have to map out the route. This is so frustrating to me. I should be able to send a message to a call sign and have it go through without me having to figure out the route. Perhaps what's missing is system acks? Another problem is that the system is wedded to JS8, which is very slow, unlike fldigi, which supports more than a dozen modes, many of them factors faster than JS8. I wish fldigi supported automatic mesh networking. Where is the system I need?
@musicM0VESme
@musicM0VESme Год назад
The dynamic Icom SM-50 microphone with built-in preamp sounds great with the IC-7300.
@bak2bassix
@bak2bassix Год назад
Thanks for the video and the off topic bits. It’s all good stuff for us newbies. M7MDO