Let me start off with I am a huge fan of Diamond antennas. I use them on my handheld scanners, my amateur radio setup, my scanner setup, and on my vehicle. 9 times out of 10, I have a Diamond antenna in use on my setup.
However - with the design of the SMA mount on the SDS100, I was very disappointed that my Diamond antenna would not fit. Since the SMA is recessed, the Diamond antenna would screw into the threads, but not far enough that the center pin would make contact.
This is of no fault to diamond. This is the way the SDS100 was designed and it requires an antenna with either a very long pin, or a thread mount that goes deep enough into the case so that the antenna can make contact with the center point.
I'm not a fan of using the SMA to BNC adapter. I'm not a fan of using a SMA to SMA barrel connector.
I did find someone who manufactured a SMA to BNC that would sit flush with the SDS100, but I don't think he is making any more of them.
So - I picked up a Remtronix 800 to try.
I was under the impression that the antenna would sit flush with the radio. It does, but you still see a chrome piece under the black coating of the antenna. A problem with me, not the antenna. I like things clean.
Overall, I am very impressed with the Remtronix antenna. It picks up the neighboring 800 Motorola Type II and P25 Phase 2 systems much better than I could have expected. It blows the stock antenna out of the water on those band. Truthfully, it isn't hard to beat the performance of many stock antennas..
So from a faithful and loyal Diamond user, I am very happy with the Remtronix purchase and would strongly recommend one for your SDS100 for 800 reception
