Cobra 75 All Road Wireless CB Radio - Dual-Mode AM/FM, 40 Channels, Bluetooth, Noise Cancellation, Waterproof, 4W Output, Black | Trucking, Off-Roading, Emergency Communication

Short review: This CB preforms just as good as my 29LTD does on the bench. The reviews saying it’s quiet, make sure the RX audio “DSP” level is set to off vs the factory default of 1. Also make sure it’s set to “DX” and not local, it’s deaf on“local”. I found that setting it to DX, squelch off, and RX DSP to level 1 works well and it only makes noise when it hears something.I wish the included USB power adapter had the same funky twist lock port like on the “black box”. Also, if you do end up using this in something like a side-by-side, make sure that USB port is sealed. If that plug cover comes off, nothing is stopping water from entering it.Now on to a more technical review.After receiving and unpacking this radio, it was put to some tests on the bench with an IFR service monitor.First tests were receiver sensitivity. Receiver DSP doesn’t do much for RF performance other than help clean up noise. You’ll rarely need to go above level 2 because it starts sounding horrible set any higher.AM resultsDX setting: .1uV or less on AM with 50% modulation. (Pretty much as low as the service monitor will go.)Local setting: 1uV or more on AM with 50% modulation. (Very local receiving ranges)FM resultsDX: .1uV (as good or better than some of the commercial radios I’ve had to service)Local: 5uV (very, very, local)TX resultsAMAverage power: 3.69 watts (FCC complaint)Peak (TX DSP on, 1): 12.19 wattsPeak (TX DSP off): 15.4 wattsModulation (TX DSP on, 1): 80%Modulation (TX DSP off): 90%FMPower: 3.5 wattsDeviation: +.7Hz (this was impressive)I haven’t done any testing after being installed in a vehicle, but from bench testing, I don’t doubt it’ll work just fine as a CB when paired with a decent antenna. If you were wondering about making any tweaks, not reasonably possible at this time. However, the USB port appears to be an actual USB port so eventually someone will figure out how to make changes via firmware.