I agree with Joe, although I used to charge the batteries in my MAHA charger. When the clock forgot who it was, I charged the capacitor with batteries in, but selected "no charge" and left the unit of

Maybe they have gone encrypted to "protect" personal information such as HIPA Joel R Kahn

If you are computer literate, the HPII can be even more useful by using the included Sentinel software to create lists of favorites to scan and to update the database with the most current full RadioR

Use the Sentinel program to download the radio programming, add the frequencies to a new or existing favorites list and upload back into the HP2. They will be there whenever you scan that favorites li

Unless you have the ARC program specifically for the PSR-500 it will not work. I looked on the old GRE website [greamerica.com] and do not see a program for that model although they do have ez-load fo

My original reply also suggested Butel's ARCPatrol software. With it you can download more than 1 favorites list from the radio, cut and paste as you please, and upload the new favorites list back to

Use Uniden Sentinel to edit the favorites list or Use ARCPatrol from Butel Joel R Kahn

I'll post this first and then PM Donald with attachments: Make sure you have the latest version of Sentinel (2.03 Revision 2) It will work with both HPs I & II. If you have Win10, you may have a probl

I have both a 1 and 2 along with 5 or 6 other scanners I use. I did get a stubby hi-gain antenna for the 2 which I use almost exclusively for 700/800 systems. I think it was about $30 from HRO. It wor

See UPMAN'S reply. It sounds like you only downloaded and installed the Sentinel program. You then need to update the database and then install into the scanner. You may want to create a favorites lis

Hoglegman: Without knowing more specific details, one can only make a few assumptions (and everyone know what "assume" means): Are you sure you got an HP-1 and not an HP-2 which does not need a wall w

try re-loading the USB driver for the radio. Joel R Kahn

If you use Sentinel to format the card & it still won't work, you might try sdformat. Since you have returned it, this is for someone else to try Sent from my Verizon Wireless 4G LTE smartphone

Sentinel works fine in Windows10 with my HP-1 and -2. Joel R Kahn

Sarge: Fully charged rechargables should last at least 6 hours in the HP (1 or 2). You said they were 2700MaH, which is what I have in mine, and I get about 8 hours after charging with my external "Ma

I have been unable to update my HP-1 or HP-2 using Sentinel for almost a week. I keep getting an error message saying database is invalid on one computer and the other computer says database is up to

Sorry Paul. I was not aware, since my new Surface Pro3 with windows 10 will not recognize my HP2!! (I still use the laptop with 8.1 and the jury-rigged driver) Joel R Kahn

A driver for Windows 10 is not available for either the Sentinel or ARC programs. You can try the earlier driver, but you have to go through multiple gyrations to get it to install since it is not sig

Bob: First, locate and install the latest version of the Uniden Sentinel software for the HP-1. After starting Sentinel & connecting the radio to your computer and turning it on, select the "Mass Stor

The power supply must be able to produce higher amperage than is required to power the radio. I bought a cigarette plug from Amzon that has 2 ports- 1 for 1a and the other for 2.1a. When plugged into