The Ailunce HD1 is a dual band amateur radio that supports both analog and DMR Tier 2 protocol. Opening the package, you receive the radio, battery, antenna, belt clip and drop in charger. The programming cable is sold separately, but it is included as part of a bundle when you order on the Retevis website. The cable connects to the multi-pin speaker mic connector and while the connection looks similar, it is not compatible with other radios, like the RT82.
If you run down the list of main features you’ll see quite a bit that are common with most DMR radios on the market. But as I said, the HD1 is designed for amateur radio use, so I’m going to pull out the few of the features that make the HD1 unique and really make it an amateur focused handheld radio.
Looking at the build of the radio, the HD1 is larger than most Chinese DMR radios, with a length of almost 6 inches and 2.5 inches wide. It’s a bit heavier too, but size and weight isn’t overwhelming and feels well balanced in the hand. The radio has two knobs on the top, one as power and volume and the other as a channel selector. On the side is a push to talk button and two programmable buttons. the other side has a connector for an optional speaker mic. The HD1 has an IP67 designation which means that it is protected from dust and can withstand water immersion. so don’t be worried about getting this handheld radio wet.
Top of the list of unique features is the transmit power. The HD1 can transmit up to 10 watts on VHF and 8 watts on UHF. Medium power drops to 5 and there’s a low 1 watt power mode. Really, the difference between 10 and 5 watts is 3db or about 1.5 S unit, so that extra boost of power could be handy in the fringe areas. But leaving it on medium power will conserve your power, giving you more life out of the hefty 3200 MaH Lithium Ion Battery.
When you first turn on the unprogrammed radio you are greeted with the VFO as the radio is in frequency mode. Yes, the HD-1 has a VFO and is fully programmable from the front panel. While I wouldn’t necessarily want to program DMR channels into the radio this way, you do have the ability to be frequency agile and change to any VHF or UHF frequency on the fly. That’s a nice feature especially if someone tells you to go to a channel you don’t have programmed in.
But to really get the radio to do something, you need to program it. The HD-1’s programming software is similar to other DMR radio programming tools, but it is different enough that you can’t import a codeplug from another model into it. So if you are upgrading from another DMR radio, you going to have to start from scratch.
Maybe if I wasn’t used to programming other DMR radios, this program would feel more intuitive. But once I got over the curve, it wasn’t too difficult. There are two big differences between programming the HD1 and another radio like the RT82 or a TYT MD380 at that matter. First, there are two contacts windows. The first is address book contacts and the second priority contacts. The address book contacts hold up to 100,000 private call contacts. You can import DMR IDs and callsigns from the DMR database so that information is automatically displayed on the screen. Separate from that are your priority contacts. These are your group call tags for your various talk groups. You can also add private calls to the priority call window if there are individuals you want to keep separate from the address book contacts.
The next big difference is the channel window. The HD1 will hold up to 3,000 channels and this window is displayed in spreadsheet format. To edit a channel you can click on the field and make changes or click on icon at the end of the line to open an edit box. Adding a channel is a bit convoluted, you need to first put a frequency in the Receive field and then you can open the edit box to add the rest of the values. But the nice thing about the channel window is you can add, edit, insert and move around channels; so it is quite easy to reorder channels in the radio.
Finally, there is a radio ID window that will hold up to 32 different DMR IDs. I like this feature as we have multiple hams in my family, so its easy to hand off a radio to my wife or daughter and with a few button clicks it becomes their radio.
One operation function that sets the HD1 apart from other DMR radios is its Promiscuous Mode. When Promiscuous Mode is enabled, you have the ability to listen to all talk groups on a repeater’s time slot and color code. So if a repeater time slot has multiple talk groups, with promiscuous mode you can listen to them all. Its a nice feature and many other DMR radios can do it, but the HD1 takes things one step further by letting you transmit back to a received talk group. The way that works is when you hear a transmission on a particular talk group that you wish to respond to: you press menu, go to Band A, select contacts and choose that talk group. You will then be keyed to transmit on that talk group. Now you won’t need to create a channel for every talk group; just create channels for time slot 1 and time slot 2 and set up the talkgroups in your contact list.