Sentinel will always be needed for Uniden Firmware updates but BUTEL ARC PRO and PROSCAN are also available. Here is a link showing a description of the Butel ARC PRO product…
ARC536PRO software download
Another consideration is with Sentinel I believe you can get database updates every week for free, simply by using Sentinel to link up with RR (Radio Reference) without needing to become a “Premium Member” on (RR).
Sentinel, of course, is required to main the database on the HP, x36HP, & SDS series scanners (separate versions, one for the HP-1 & HP-2, a different one for the x36HP & SDS scanners). And, if and when a firmware update is available, then sentinel is needed to handle that task.
RR is where the database is. In order to get the data to download into whichever software program you use (ARC, SENTINEL, ProScan) you link into it using your software programming, do any editing you think necessary and then, using the appropriate programming cable, send or write your scanner. I’d you use Butel ARC PRO I believe there is a condition set where you must subscribe to RR. But the charge is very reasonable. I also have ProScan but don’t use it and I didn’t research if you need (it’s been a while) to do the same RR subscription as with the Butel ARC product.
A Premium Subscription is required for direct database imports from the RR Database, for both ProScan & the ARC software. It's also needed for imports in FreeSCAN, which does not support any of the database scanners, and does not support DMR and NXDN systems for the P2 series scanners.
I use Butel. I’m NOT saying it’s better than ProScan. And I do believe any popularity survey will show ProScan the overall winner. Maybe because it works with just about every scanner model out there, so, one price gets you more versatility, where the Butel programming is more customized to work optimally on one series of scanners at a time. For example, DMA scanners may use different software than SDS scanners. In my case, I started with Butel before FreeScan and then ProScan came alive. And I just stuck with what I knew.
There's nothing inherently "wrong" with the ARC software, If you are comfortable with it's layout & operation, then use it,. I try to suggest that new users download & try
both ProScan as well as the ARC version for their scanners.
To me, the biggest drawback for the ARC software is it's pricing structure, and the need for multiple versions. Initially, the ARC software programs were specific for a specified model, such as ARC396, ARC996, and and ARC330. Later editions of the software devolved into category software, with several scanners using the same program, such as ARCXT, which covers the XT and P2 series scanners, and ARC536, which is for the x36HP & SDS series scanners. ProScan handles all of the scanner models noted, in one version, and at a single purchase cost (for
all of these scanners @ $50. ProScan gives you programming capability, as well as logging & virtual control, in it's one price purchase. For the ARC software, you have to choose between the Basic version, imports & programming only, for about $40, or, if you want logging & control, then the "Pro" version is required, at about $70. So, your choice is either a couple of editions, at either $40 (Basic) or $70 (Pro) each, in order to cover the XT/P2 scanners, & the database scanners (x36HP & SDS), verses a one time, $50, purchase of ProScan which covers all of these, as well as including logging & virtual control. Both the ARC software programs, & ProScan, offer free lifetime updates whether refining the current capabilities or adding new functionality.
ProScan has extra capabilities that I don't believe Sentinel has such as:
- Multiple Favorites on the same tree which makes it easy to Copy & Paste and Drag & Drop systems
- Find Duplicates utility
- Find & Replace utility
- Update Text Tags utility
- Import directly from RRDB. RadioReference subscription required
- Import from the Win Clipboard or from a RR web page. No RadioReference subscription required
- Versatile Sorting options
- Google Maps showing all the systems with circles or rectangles
- Export nicely formatted web page showing any or all (user selectable) FQK's, SQK's, Number Tags, and systems
- Copy & Paste and Drag & Drop nodes to other systems and other ProScan instances
- SDS200 FTP Read & Write using the Ethernet connection
- View the differences between ProScan and the Scanner favorites when writing and reading to and from the scanner
- Modify Uniden (HPDB) Database utility
- Change the system type in one step
The above features (among others), as well as more comfortable pricing, are why I use ProScan instead of buying multiple ARC programs.