Midland MXT400 MicroMobile (discontinued): FCC filing & specs

FCC filing

FCC ID: MMAMXT400 (fccid.io mirror of FCC EAS; official search: FCC OET)
Grantee: Midland Radio Corporation (grantee code MMA)
Equipment class: Licensed Non-Broadcast Station Transmitter (TNB)
Grant date: 2016-09-01 (original); Class II permissive change 2021-06-21 (Original Equipment + Class II permissive change)
Power basis: conducted: measured at the antenna jack, before the antenna (what this means)

Band (our label)	Frequency range on grant	Filed watts (conducted)	Rule part	Emission code
462 (high)	462.55–462.725 MHz	40	95E	10K5F3E / 16K0F3E
462 (low)	462.55–462.725 MHz	5	95E	10K5F3E / 16K0F3E
467 main (repeater input, high)	467.55–467.725 MHz	40	95E	10K5F3E / 16K0F3E
467 main (repeater input, low)	467.55–467.725 MHz	5	95E	10K5F3E / 16K0F3E

Grant comment: "Output Power listed is the maximum conducted output power. The transmitter has maximum duty factor of 50 %." Install for "a separation distance of at least 60 cm from all persons"; "Antenna gain is less than 2.15dBi." Rows are listed under both 95A (older numbering) and 95E. The grant lists one 462.55–462.725 MHz span at 5 W and 40 W; that span also covers the 462 MHz interstitial frequencies. Source: https://fccid.io/MMAMXT400, checked 2026-10-21. Terms such as ERP, SAR and duty factor are explained in our glossary.

Maker's claims vs FCC filing

Maker says

"40 watts of broadcasting power with a 65 mile line-of-sight range" source

FCC filing shows

40 W conducted (462 and 467 MHz main) grant

Our read

Power is consistent. The 65-mile figure is a maker range claim, quoted as-is; grants don't certify range. Midland replaced the MXT400 with the 50 W MXT500.

Specifications (maker sources)

Power & radio

Rated power: 40 W (Midland blog) sourcechecked 2026-10-21
Power levels: High / Mid / Low (Midland FAQ lists transmit current for all three) sourcechecked 2026-10-21
Channels: 15 GMRS channels + 8 repeater channels; 142 privacy codes sourcechecked 2026-10-21
Repeater support: Yes – 8 repeater channels sourcechecked 2026-10-21
Antenna: Detachable external magnetic-mount antenna (Midland blog); Midland FAQ: all MXT radios use a PL259 connector sourcechecked 2026-10-21

Build & power source

Water/dust rating: not yet verified
Battery: n/a – vehicle power; Midland: 10 A max transmit (high), 15 A fuse, 14 AWG up to 10 ft sourcechecked 2026-10-21
Battery life (maker claim): n/a (vehicle-powered) sourcechecked 2026-10-21
Charging: not yet verified
Weight: 7.3 × 5.5 × 1.6 in (Midland FAQ); weight not stated sourcechecked 2026-10-21

Price & warranty

List price: n/a – discontinued (Midland FAQ) sourcechecked 2026-10-21
Warranty: not yet verified

NOAA weather

Weather feature (maker): None – Midland FAQ: all MicroMobiles "except the discontinued MXT400 include NOAA weather channels and alerts" sourcechecked 2026-10-21
SAME county filtering: not yet verified
On NWS "All Hazards" logo list?: Not listed NWS listchecked 2026-10-21

"Not listed" means this model isn't on the NWS list of radios approved for the NOAA Weather Radio All Hazards logo. It doesn't mean the radio can't receive weather broadcasts. The maker pages we checked don't say whether alerts use SAME county codes. See the weather radio guide.

What we haven't checked

Real-world range, audio quality and battery life (not measured; see how we work).
Fields marked not yet verified above.

Other radios in the database:

Need the rules behind these numbers? See the channel & power chart. Still deciding? Read how to choose a GMRS radio.

Key specs at a glance