I always thought that the DTR410 was the only radio in the DTR series that had the non-replaceable antenna. But I’m seeing DTR550’s show up on eBay for instance with a non-replaceable stubby antenna. It was my understanding that the DTR550 and DTR650 had replaceable antennas.
So is the eBay auction below really a DTR550, and, is that stubby antenna replaceable?
Those are generation I DTR radios. Generation II 550s and 650s have replaceable antennas, and the 410 uses the stubby antenna but has a software upgrade that includes many of the same management functions as the 650.
From what other people on this forum have stated, it appears the gen I radios don’t play well with the customer programming software (CPS.)
Personally, I wouldn’t touch them. Consider that rechargeable batteries lose life from the moment they are manufactured, you will be dealing with shortened battery life on these older radios.
The gen I sold on ebay for $165, and the new ones are just over $250 on buytwowayradios.com. I think it’s false economy to buy used gen Is. I would hold out for either new or gen II models.