Ham Radio Nets — What They Are and How to Check In

What a Net Is

A "net" (short for network) is an organized, scheduled on-air gathering of amateur radio operators on a specific frequency at a specific time. A net control station (NCS) manages the gathering — calling for check-ins, acknowledging stations, directing traffic, and closing the net. Nets run daily, weekly, or monthly, usually on a local repeater, and serve purposes ranging from casual conversation to emergency preparedness to message relaying.

Types of Nets

Traffic Nets

Traffic nets relay formal written messages (called "radiograms") between stations. The National Traffic System (NTS) operates a network of traffic nets that pass messages across states and regions. A message originated in California can be relayed through a chain of nets to reach a station in Florida — entirely by radio. Traffic nets have formal procedure; beginners should listen several times before checking in with traffic.

Information and Announcements Nets

Many clubs run weekly nets where members check in, share announcements, and discuss club business. These are conversational and welcoming to new operators. A typical format: net control checks for emergency or priority traffic first, then calls for check-ins, acknowledges each station, and gives each a chance to speak briefly.

Emergency Nets

ARES and RACES groups run training nets to practice emergency procedures. These are more formal — strict identification protocols, traffic handling procedures, and tactical call sign discipline. They are excellent training for anyone interested in emergency communications.

SKYWARN and Weather Nets

During severe weather, SKYWARN storm spotter nets activate on local repeaters. Licensed amateur radio operators trained as storm spotters report weather conditions directly to National Weather Service offices via net control. This is one of the most immediately useful public service roles for Technician operators.

How to Find Local Nets

Three methods: (1) Monitor local repeaters — net announcements are made on-air. (2) Ask at a local club — every club knows the local net schedule. (3) Search the ARRL Net Directory at arrl.org/arrl-net-directory — searchable by state and net type.

Net Check-In Procedure

Your first net check-in is simple:

1. Tune to the net frequency and listen from the start to understand the format
2. When net control calls for check-ins, wait for a short gap, then key PTT and give only your call sign — phonetically if conditions are poor
3. Net control will acknowledge you. They may ask for your name, location, or traffic
4. Give your information briefly: "[Call sign], [first name], [city], no traffic"
5. Wait for net control to call on you again before transmitting further

Net Control Etiquette

Net control has a difficult job — tracking multiple check-ins, managing traffic, and keeping the net on schedule. Respect their role: do not transmit out of turn, keep your check-in brief, acknowledge when net control calls on you by repeating your call sign, and do not side-chatter with other stations while net control is managing check-ins. After the net formally closes, casual conversation on the frequency is generally fine.

• Do I have to have something to say to check into a net?
  No. "No traffic, no comments" is a completely valid check-in. Many operators check into daily nets simply to be counted as available, to support the net's existence, and to stay connected to the local community. You are not required to have anything specific to say.
• What is "traffic" in ham radio terms?
  Traffic refers to formal written messages (radiograms) being passed through the National Traffic System. When net control asks "do you have traffic?", they are asking if you have an NTS-formatted message to pass. If you are just checking in for the community aspect, the answer is "no traffic." Traffic handling is a separate skill set within amateur radio — most casual nets do not require it.
• What is a "net control station" and can a new ham be one?
  Net control is the operator who runs the net — calls for check-ins, acknowledges stations, and manages the flow. It requires good operating procedure, familiarity with the net's format, and the ability to manage multiple simultaneous stations. Most clubs will train interested members to serve as net control after they have checked into the net regularly for a few months. It is a valuable skill and most nets welcome new net control operators once they are comfortable with the format.