Marin County Airport - Gnoss Field frequencies

Marin County Airport - Gnoss Field (DVO · KDVO · NOT) in Novato, CA has no control tower, so nobody is sequencing traffic here — you announce your own position on 123.075. Every frequency below is in the order you tune it. · Open on the map

All of Marin County Airport - Gnoss Field — runways, frequencies, charts and live weather

Before taxi

ASOS/AWOS 120.675
An automated weather station reading the field conditions aloud — wind, visibility, ceiling, temperature and altimeter. It replaces ATIS at a field with no controller to record one. Get the altimeter setting before you descend below the transition altitude.

Taxi & takeoff

CTAF 123.075
The common frequency pilots use to announce themselves to each other at a field with no operating control tower. Nobody is controlling traffic — you are self announcing. Report your position and intentions on entry and on each leg of the pattern, and listen well before you transmit.
UNICOM 123.075
A ground station run by the FBO rather than the FAA, for fuel, parking and airport services. Use it for services. Where the field has no separate CTAF, the same frequency doubles as the advisory frequency.

Also

Flight service 127.8 (LOW)
Flight Service handles briefings, flight plans and en route advisories, reached here through a remote outlet. Open and close VFR flight plans, and get updated weather in the air. 1-800-WX-BRIEF reaches the same specialists from the ground.

What to say on 123.075

Nobody is sequencing traffic at KDVO, so every call is you telling other aircraft where you are. Open and close with the field name so a pilot tuned to a shared frequency knows which airport you mean — 123.075 is not unique to Marin County Airport - Gnoss Field.

  • Inbound, 10 miles out Marin - Gnoss traffic, Skyhawk one two three four five, one zero miles south, inbound landing runway 13, Marin - Gnoss.
  • Entering the pattern Marin - Gnoss traffic, Skyhawk one two three four five, entering left downwind runway 13, Marin - Gnoss.
  • Before taking the runway Marin - Gnoss traffic, Skyhawk one two three four five, departing runway 13, Marin - Gnoss.

Pattern direction is not always left here — check the KDVO traffic pattern before you announce a leg. The Chart Supplement is authoritative if KDVO publishes a call name that differs from the airport's. Full guidance →

By procedure & sector (1 more)
353.5MOUNT TAMALPAIS RCAG (LOW)
Every KDVO frequency, as one table
ASOS/AWOS120.675
CTAF123.075
UNICOM123.075
Flight service127.8 (LOW)

Frequently asked

What is the CTAF at KDVO?

Marin County Airport - Gnoss Field is non towered. The common traffic advisory frequency is 123.075 — announce your position and intentions on entry and on each leg of the pattern.

What is the ASOS/AWOS frequency at KDVO?

ASOS/AWOS at Marin County Airport - Gnoss Field is 120.675. It is an automated broadcast, so there is no letter to report — just take the altimeter setting and wind.