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  • Tempstar's Avatar
    Today, 10:49
    Tempstar replied to a thread FT8 problems in Bands & Modes
    I had to look up that cable. I think you only have audio there. You need the USB connection for CAT control.The only Yaesu I own is the 991a and it uses a USB cable for everything. A quick search reveals you also need a USB to serial cable to control the radio in addition to the DC11F.
    1 replies | 142 view(s)
  • Tempstar's Avatar
    Today, 10:40
    Windows has the advantage of more software available, but what is available on Linux is great to use home built computers and Raspberry Pi platforms.
    2 replies | 337 view(s)
  • G7NFP's Avatar
    Today, 06:39
    G7NFP replied to a thread Pre-Noob in Introduce yourself
    Ah, l thought the very same. No way could they make a murder charge stick. Especially considering that the cop was fully aware that he was being filmed by bystanders. It's also been mentioned on our news that the victim had Covid. Therefore the defense will most certainly argue that his breathing difficulties were due to the virus. They will also argue that the officer had restrained suspects in the same manner throughout his career & this was the only fatality. No doubt the defense will put police training under the microscope, and also the many cases where suspects have been restrained in the same manner by police forces nationwide & internationally which did not result in fatalities. I am not a solicitor & l, like yourself, can already see cracks in those charges. Yes you are right. After the jury let that cop walk, the riots will resume with more aggression than we have seen so far. They will also be careful to ensure the jury is 50/50. But after the cop walks, they will argue that the jury...
    36 replies | 1007 view(s)
  • dnwiebe's Avatar
    Today, 00:49
    dnwiebe replied to a thread Pre-Noob in Introduce yourself
    It depends on the location. At least in the US, the riots are almost exclusively a liberal-on-liberal phenomenon. Liberals—especially urban liberals—tend not to have guns, because they depend on police to protect them. (Until they defund the police, of course.) Some of them try to defend their businesses, mostly either in an unarmed fashion or with ineffective weapons, but others depend on luck or expressions of solidarity with the rioters. Folks in smaller cities, villages, and rural locations have police forces that are smaller, less well-trained and -equipped, and even sometimes an hour or more away. They can’t depend on police to protect them, and their mindset is more generally individualistic anyway. They’d be more likely to defend their businesses with lethal force, except that for the most part their businesses are not in danger. Antifa is safest in cities that have been run by liberals for decades. This isn’t to say that conservatives don’t have their problems or that they can’t be equally...
    36 replies | 1007 view(s)
  • G7NFP's Avatar
    Yesterday, 19:30
    G7NFP replied to a thread Another new dude in Introduce yourself
    Hi again Neil, I am 10yrs ahead of you & now retired. I was a registered nurse for 30yrs. Then decided l needed a change so l used those City & Guilds in electronics qualifications to enter the electronics industry. The intention was only for a temp job after moving from Scarborough to Nottingham. But l found that l enjoyed the work. And it also helped when my employers realised my talents & l moved from doing the repairs to testing the other repair guys work. They even bumped up my pay above the rest. Then one of my mates let slip my previous occupation. What happened then was guys who were unlucky enough to sustain an injury came to me rather than a first aider. That pissed off the company. But their solution was to send me on a first aiders course for a week. Hell they even provided me with a brand new hire car for the week as l was not permitted to use my own car on company business. Then the defib course, the oxygen administration course. So perhaps understandable that l stayed for a few...
    3 replies | 207 view(s)
  • timthetwin's Avatar
    Yesterday, 19:18
    timthetwin started a thread New Guy in Introduce yourself
    Hi All, I am new to HAM radio world. I need a new hobby, and radios have intrigued me for some time. I am interested in getting my HAM licence and learning more! I am in the Sacramento, CA area! Thanks, TtT
    0 replies | 24 view(s)
  • essbee's Avatar
    Yesterday, 17:44
    Hi Gene - sorry for the late response. You'll be fine. I can't imagine you'd have interference. I think just the opposite would be the case because the metal would be an extra shield. Very fortunate for you to have such an easy route. Sent from my SM-G973U using Tapatalk
    1 replies | 135 view(s)
  • pmh's Avatar
    Yesterday, 17:10
    pmh replied to a thread Hi all in Introduce yourself
    Hello, and welcome to the forum. Kind regards, Phil
    2 replies | 321 view(s)
  • pmh's Avatar
    Yesterday, 17:10
    Hello Trevor, Welcome aboard. Kind regards, Phil
    3 replies | 292 view(s)
  • pmh's Avatar
    Yesterday, 17:09
    pmh replied to a thread Greetings in Introduce yourself
    Congratulations on your pass. Kind regards, Phil
    4 replies | 161 view(s)
  • R2D2's Avatar
    Yesterday, 16:09
    R2D2 replied to a thread A selling question in The Junk Box
    I knew of a club in the southern portion of TEXAS that was a school club, their students were mostly Latinos and Anglo's and were very poor. They had no budget and their instructor was looking for anything he could use to help them get their start. I will try to see if I can find their QSL Card in my files. Those people were very deserving and would have appreciated anything you could possibly send them! I think their call was K5LBJ
    4 replies | 296 view(s)
  • R2D2's Avatar
    Yesterday, 15:54
    R2D2 replied to a thread A selling question in The Junk Box
    In the life of a ham, in the beginning, a person owns no equipment, or at the very least, they have a relative or a friend that gives them some equipment to get their start. As their amateur radio career begins, they accumulate a lot of junk and a little good stuff. As times goes by you make friends, your friends also has a laundry list of junk which gets traded, bought, sold back and forth until finally all of your friends are dead and you are the last remaining soul. As long as you make friends and have friends you always have a venue for your used radio equipment. Your mom would be well aware of who your dad's friends were and how they helped him thru the years. Usually those people will come forward and make remarks about how they were friends and how they would like to have this, that or the other. The best thing you can do is ask your mom - was this guy / gal really dad's friend.. Did they ever offer to help him, or were they only his friend when they wanted something?
    4 replies | 296 view(s)
  • G7NFP's Avatar
    Yesterday, 10:53
    G7NFP replied to a thread Greetings in Introduce yourself
    That's a nice little handy you have. Mine is a few years old now (VX-8). In UK, the equiv exam to the tech is the "Foundation". However, many in the UK sit that exam & never bother with the rest. Reason = with a Foundation license they can use "all" ham bands. The only restriction is that their power is limited to 10w. The next licence up (Intermediate) the power is restricted to 50w. Then the top licence permits full power of ofcourse. Having said that it would very difficult to police how much power anyone was using
    4 replies | 161 view(s)
  • anne's Avatar
    Thu 4th Jun 2020, 19:58
    With 11 Ohms limiting resistor the array drawa 90 mA and there is 1 V across the resistor. Currently running "smoke test".
    7 replies | 152 view(s)
  • anne's Avatar
    Thu 4th Jun 2020, 17:36
    I woudl not say you have made an error / wrong assumption when it comes in connecting serial / parallel LED array. You are just working what is known / given , same as I. This whole exercise did not started as theoretical application of Ohmís law, but as an experiment with real limitations, including wallwart DC supply. I need to point out that the specification for the LED is not written in stone, just my best guess. I really do not have real data what is maximum current before LED became "fast blow fuse". Here is the latest. With the fan running @13V , drawing 55mA I added 100 Ohms limiting resistor connected to 3 LED's in series.
    7 replies | 152 view(s)
  • brandon lind's Avatar
    Thu 4th Jun 2020, 16:50
    Admittedly, i made two critical errors in my first response. The first error was suggesting a single resistor for the entire array. Diodes in parallel to other diodes have the strange ability to unevenly pass current. This means every parallel path of LED lights will need an individual limiting resistor. The other error i made was making the assumption your supply was regulated. Being it is typical for wall worts to be rectified sine waves with no regulation, the unloaded peak voltage and the loaded RMS voltage prior to rectification will be different ~ hence the 16v you see with nothing connected This needs to be taken into consideration when designing the system.
    7 replies | 152 view(s)
  • flboy's Avatar
    Thu 4th Jun 2020, 15:47
    flboy replied to a thread Wires-X HRI-200 Question in Yaesu
    BTW, if you do not care about setting up your own room or analog connection on Fusion, no need for and HRI-200 with the HRI mode in new capable radios. Sent from my SM-N970U using Tapatalk
    2 replies | 232 view(s)
  • flboy's Avatar
    Thu 4th Jun 2020, 15:45
    flboy replied to a thread Wires-X HRI-200 Question in Yaesu
    I believe both are true. The newer FT-400, FT-3 and FTM-100 an FT-2D with latest firmware can go into HRI mode and make a direct connection. They can also provide a node access where you can use another mobile Fusion capable radio to connect. I use a FTM-100 in my pickup and can hit my FTM-400 from cross town similar to a repeater and connect to Fusion via the FTM-400 and PC internet connection. I hope this helps. KE4EVL Sent from my SM-N970U using Tapatalk
    2 replies | 232 view(s)
  • anne's Avatar
    Thu 4th Jun 2020, 15:01
    I realize I am getting ahead and answering / posting before my posts are approved. I run another test to get better feel for the DC supply. My ultimate goal is to pass air over the array. I am currently using 12V DC fan and the DC supply output drops to steady 13V @ 55mA I think I will size the limiting resistor to pass 150 mA to the array.
    7 replies | 152 view(s)
  • eddiek's Avatar
    Thu 4th Jun 2020, 14:59
    eddiek replied to a thread phasing harness question?? in Antennas
    Put that antenna on the VNA and started cutting the dipoles - your answer is is correct, didn't matter, least I could tell. My return-loss is in the low -30's dB. BW is about 25-30 Mhz wide. The ant really started to resonate when close to design freq. Take that any day...
    2 replies | 126 view(s)
  • R2D2's Avatar
    Thu 4th Jun 2020, 12:05
    R2D2 replied to a thread yeausu ft8900 in Yaesu
    Post a picture of what you are talking about? Center Button where? Center Button in the middle of the display is the function button. Button to its left is the scan, button to the far right is also scan.. Radio squelch needs to be closed for the radio to scan. The radio will function without the microphone. Unplug the microphone, close the squelch, press the scan button. Find yourself an Elmer!
    9 replies | 387 view(s)
  • R2D2's Avatar
    Thu 4th Jun 2020, 12:01
    R2D2 replied to a thread phasing harness question?? in Antennas
    1 inch one way or another, unless you are cutting the antenna for an exact frequency with a high q antenna isnt going to make any difference.
    2 replies | 126 view(s)
  • anne's Avatar
    Thu 4th Jun 2020, 03:21
    Sorry , your very informative analysis and actual measurements do not agree. But I do appreciate you spending your time on it, for real. I think the real problem is figuring out how "hard" these DC supplies are, AKA how does the output hold under load. Also - LED blows very fast when the current is not limited IMMEDIATELY ! I have replaced limiting resistors - two 1k resistors in parallel with four resistors in parallel. Now I am reading almost 9V across the array and almost 20mA of total current. I can accept the 9V , but 20mA is way off the scale !
    7 replies | 152 view(s)
  • rick619's Avatar
    Thu 4th Jun 2020, 02:45
    rick619 replied to a thread Mobile Radios WTF Does this mean? in Amateur Radios
    I've been using Chirp and have the cable. Mostly using it to add in repeaters of areas I will be. I was definitely appreciative of being given the radio. Seems like exactly what I need without being too fancy. The screenshot of the manual I was trying to post is the notice at the bottom of page 23. Don't think I can post attachments because it's a new account. I was just trying to understand the gist of the notice. Something about frequency mix and an equation.
    6 replies | 343 view(s)
  • brandon lind's Avatar
    Wed 3rd Jun 2020, 22:59
    Since the voltage drop remains the same across an LED bulb as the current through it changes, you subtract the LED voltage drop from the supply voltage to obtain the voltage on the resistor. (and thus the current via ohms law). Three 3v LED's in series would be a total of 9v across the string. At 30mA per series LED string, you pull 300mA having 10 of those in parallel. In other words, you have a total of 9v drop and 300mA draw through the entire network of lights. That is too much for that power supply. Given that the addition of a limiting resistor to further lower the brightness will increase the loss, its likely that trying to limit the current further with a resistor will simply shut the lights off. Step one, get a more powerful supply. For simplicity sake, lets do the math on just one 3v 30mA LED connected to a 9v supply. 9v - 3v = 6v across the load resistor. if we want 30mA through a resistor with a 6v drop, 6v / .030A = 200ohm. And the power rating of that resistor is 6v x .030A = 0.180W. This...
    7 replies | 152 view(s)
  • Grahamwms's Avatar
    Wed 3rd Jun 2020, 22:19
    Grahamwms replied to a thread yeausu ft8900 in Yaesu
    I've just ordered a new cable for the microphone will keep you updated when I receive it.
    9 replies | 387 view(s)
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