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Yes, we’ve been talking about it for a couple days in the section of the forum dedicated to this site.
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TD-H3 transmitting but not showing up on SWR meter
hxpx replied to hxpx's question in Technical Discussion
Tidradio has their own Amazon shop which is probably why the replacement came from Amazon. Took about a week to get it to me once they sent the "replacement is on the way!" email. They're good to work with. They did ask me for pictures for their engineering team since I mentioned hooking it up to an SWR meter, but they never followed up on them. -
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TD-H3 transmitting but not showing up on SWR meter
WSIA835 replied to hxpx's question in Technical Discussion
Good to know. I would have figured that replacements would have come direct from China. -
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TD-H3 transmitting but not showing up on SWR meter
hxpx replied to hxpx's question in Technical Discussion
Alright, finished charging sometime after 2am, so here's the album. Battery read 8.57v both on the little single port charger and the Anker charger after being fully charged. Maybe they fixed them? I'm going to run this battery down to ~50% to replicate the condition of my first battery and then we'll charge it again to confirm. Edit: Put the old battery on the charger out of the box: 12v again. It's gotta be something with the internal charging circuit on the battery. -
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I got it
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constant static
WSHR719 replied to WRUC846's topic in South Central Tennessee GMRS's Club Forum Page
If you're on a HT you wont hit any repeaters in or around Clarksville and defiantly not in Nashville. - Today
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No. Sounds like you're using the wrong browser. Use Firefox with Ublock Origin and Ghostery Add-ons and you won't have to put up with that crap.
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Anyone else getting a Password Expired Notice when reviewing the latest Repeater updates just sent? I'm getting the notice even though I am logged in. Looks a bit suspicious
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Any mobile radios that do 2 Watt FRS TX/RX?
jwilkers replied to CoffeeTime's topic in General Discussion
Frs is handheld only Sent from my SM-S911U1 using Tapatalk -
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There is no such thing Sent from my SM-S911U1 using Tapatalk
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WSIK532 reacted to an answer to a question: TD-H3 transmitting but not showing up on SWR meter
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Wasn't really talking about testing, but real world conditions. The conditions between my house and repeater are sort of at the fringe even though it's only 1.9 miles as way of the crow. And while walking around my neighborhood I can usually reach the repeater and transmit audio through my 5 watt HT. There are times where I can hit the repeater and get nothing, just a blank receive from the repeater for the whole transmission and then the courtesy tone. I have a courtesy tone on my repeater so I know when I hit it with absolute certainty. But I've never heard what I would consider an oscillation. This theoretical oscillation would only happen as long as the HT is keyed up.
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TD-H3 transmitting but not showing up on SWR meter
SteveShannon replied to hxpx's question in Technical Discussion
That’s just about ideal. So the charger is definitely putting out 12 volts once the battery is fully charged. That seems completely wrong to me. For the example I listed earlier, the Baofeng charger displayed a green light and was putting out 8.08 vDC. The Alinco charger is still charging and it shows 8.34. When it turns green I’ll measure it again. -
TD-H3 transmitting but not showing up on SWR meter
SteveShannon replied to hxpx's question in Technical Discussion
That could be. When transmitting the battery will provide the necessary power but I would expect a slight voltage drop which might cause issues for the charger. -
TD-H3 transmitting but not showing up on SWR meter
hxpx replied to hxpx's question in Technical Discussion
Right around 8v. The one I pulled out of the box was at 7.5v and is currently charging. Bumped up to 7.7v on the included charger. I'll test it again and post photos when it's done charging (maybe in the morning depending on when it's done). -
Hmm. I'm not sure what you are describing is all that unusual. Every radio that is on the ragged edge of a repeater can cause that 'oscillation' condition if the duplexer is not tuned correctly. There really isn't anything you can do beyond a properly tuned duplexer. Now when I am testing, I do run repeaters with the receive input not connected to anything, a dummy load on the transmit side and no duplexer. I have never had a transmit signal from the repeater desense my test HT to the point where there was a failure to operate correctly. I'm not sure you can create that condition unless something is horribly wrong somewhere.
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TD-H3 transmitting but not showing up on SWR meter
SteveShannon replied to hxpx's question in Technical Discussion
Which is why I suspect a firmware issue with the charger increasing. Once the light turns green the charger should only provide the voltage necessary to maintain the battery. It shouldn’t increase the voltage that high. What does the fully charged battery voltage show when it’s out of the charger? -
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Spanish for "bear"
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TD-H3 transmitting but not showing up on SWR meter
hxpx replied to hxpx's question in Technical Discussion
Wonder if the Alinco warning is due to the sudden voltage dip/current draw on power up messing with the charger. Kenwood's TH-D75 manual recommends not TXing while the battery is charging because the sudden power draw causes issues: The H3 batteries charge over USB-C and I'm using an Anker charger that I've used on pretty much everything else. While the battery is charging, it only showed 7.5-8v across the terminals. Shot up to 12v as soon as the light turned green. I can try it with the little single port USB block they included with the radio if you want another data point. Lemme unpack this radio and let's see what happens (assuming the battery isn't fully charged from the factory). -
TD-H3 transmitting but not showing up on SWR meter
SteveShannon replied to hxpx's question in Technical Discussion
That’s what I’m saying; I don’t think it’s the battery. I think your charger is pushing too high of voltage. Take the battery off the charger and then measure the voltage at the battery terminals. -
TD-H3 transmitting but not showing up on SWR meter
SteveShannon replied to hxpx's question in Technical Discussion
My Alinco charger with battery shows 7.93 vDC. My Baofeng shows 8.08 vDC. None of my battery chargers put out anything close to 12-15 vDC to a 7.4 volt lithium battery. -
TD-H3 transmitting but not showing up on SWR meter
hxpx replied to hxpx's question in Technical Discussion
It's a known issue that's resulted in some fried radios. Someone made a video about it a while back (I think someone shared it on here - maybe in GrouserPad's thread?) and Tidradio made a note in my warranty replacement emails to always disconnect the battery when charging. Don't know if newer batteries have addressed the issue. I actually haven't unpacked my latest warranty replacement - I should see if that battery has the same issue. -
TD-H3 transmitting but not showing up on SWR meter
SteveShannon replied to hxpx's question in Technical Discussion
It appears that your battery is in the charger while you’re measuring the voltage at the terminals that connect to the radio. I could see a firmware error (maybe even intentional but not what I would expect) in the charger increasing the charging voltage to the wrong voltage. If so, that should be a fairly obvious error that TidRadio should remedy. If that is what’s happening it could definitely let the magic smoke out of radio circuits. That would match your picture. My Alinco radio has a warning about powering on the radio while the radio and battery is on the charger. I’ll plug it in and see what voltage appears on the battery terminals while charging outside of the battery. -
OK, I'm thinking again....sorry LOL So you have a repeater and an HT that is near the receive limit of the repeater. Why doesn't it oscillate? You transmit with the HT, the repeater receives the signal activates the transmitter, desenses the receiver and the transmitter stops and then the HT signal is received again and it oscillates back and forth on this. Is there a delay or something designed in a repeater to prevent this? I also have observed that there is a point where you can activate the repeater and keep it up but you can't push your audio through it, not ever scratchy audio, it's basically blank. But get a bit closer and you get scratchy audio. I assume that's when you are able to overcome the desense of the system?
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TD-H3 transmitting but not showing up on SWR meter
hxpx replied to hxpx's question in Technical Discussion
I've heard the issue is that it's dumping the battery voltage plus the charging voltage once it hits 100% instead of shutting off the charger.