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Thinking over what I said earlier, likely I was simplex between two radios and not using a hotspot. At this time I don't believe my original comment is relative to the problem. First of many mistakes to make this year...

Years back when I had two DMR radios I used my DMRID in both. Testing with the hotspot one of the radios did not like to hear its cloned brother and would not open the squelch. I don't think the hotspot cared, but just for grins try changing the DMRID in one of the radios and see what happens...

I recommend running low power until you get it sorted out. Transceivers are good at protecting the output stage, but best not to exercise that protection at higher power levels more than needed.

The typical 3 element retractable tape measure antenna has a deep null on the back side for closer in work. The well equipped 'hound' will have a switch box or offset attenuator. The offset is a little pricy, but time and money to make switch box I think is offset with the simplicity of using...

I recall Chirp and one of the big 3 radio companies HTs don't play well together. I'm not a Chirp users so I don't have confidence in my recall. Google will help find any issues. Using the cloning cable and clone function in each radio does not speak well of the heath of the radio(s) data. Good...

EMSF, Not having any experience with that radio, my suggestion is to very closely compare all the data between channels that have the issue and don't have the issue. Obviously there are differences that are needed. As you know DMR programing has check boxes and links to other parts and they are...

To expand my own knowledge I looked into lithium Ion batteries from different sources for temperature range. Storage, discharge and charging each have their own range with the lower limit higher for storage and charging. I think Icom might be fast and loose for marketing purposes. They should...

Some battery chemistries do not respond well to low temperatures for discharge or charging. At least you can keep it close to the body until needed.

The 400 used a patch antenna in the control head. Likely the same in the 200 and the broadcast antenna will not suffice at GPS frequency and receive levels. P.S. Parallel typing…

Give the following link a look. I think there are hot links for addition support in the PDF file. https://www.weather.gov/media/marine/rfax.pdf

APRS does not handle packet collisions well or at all. Radios make use of closed squelch to determine if it OK to beacon. If APRS traffic is high in your area its easy to manually beacon in the middle of someone else's beacon. On receive if your radio's squelch is to high it can cause other...

I would say you are looking in the correct places. Does empty shelves mean no physical product or no product matching your needs. Detachable faceplate is not common but can be had depending on your flavor of digital. I think digital mode is the primary data point point to which path to take for...

I've found the SDRPlay RSPdx using their SDRuno software a workable & cost effective choice. As pointed out many of today's radios with a front panel are SDR behind the panel. When the front panel of your radio is a computer running SDR software many of constraints built into a front panel radio...

Long time RTS user across many radios. Last I looked many months back DMR radios were not on their agenda. Maybe you found a "bug". A few programming software packages require reading the radio first. Is your 578 model a match to their compatibly list? I have found the typical Anytone radio...

eQSL and LoTW can happen at the speed of internet... Cards take awhile longer. I've gotten cards years after the QSO. Some of my electronic ones come years later too. Mostly I think hams are setting up online and catching up their old QSO logs. Don't let the lack of a card disappoint. Mike

In the used market avoid the 400DR which I had. The followup updated XDR corrected the poor GPS lockup time of the DR version. Mike

I believe your "frequency broadcasting on 146.52" is part of the APRS data packet if enabled, but the receiving end has to be setup to decode and respond to the information. I'll admit I only read about it many years ago. Kind of like sleeping at a "Holiday Inn". Better luck to be had on APRS...

You might want to look closely at the VAC setup/configuration. At one time I had problems with mine after not using it after several months. It turns out the sampling rate had moved to a mid-range value. I bumped it up to the top and all was well. Depending on your VAC other parameters might be...

To confuse the situation the attached picture is my PC setup with hub expander that does work with my SDS100 using Sentinel and charging, but using the Hub USB port is not how I usually charge the radio. I just know it does if I want it too. Different radio and setup... Might make a difference...

I think your passive/active question sets the stage for a blanket hub not recommended. An inexpensive inline USB meter displaying volts and current helps monitor the charging process across various end devices, cables and charging devices. Showing what works and doesn't... Mike