The Waltham ARA maintains four repeaters, all located on Prospect Hill in Waltham, MA.  Our repeaters are open for use by all radio amateurs.  All use the callsign W1MHL/R.  On certain dates, one or more of our repeaters may be reserved exclusively for use by a public service event.

Input (MHz)Output (MHz)Tone In (Hz)Tone Out (Hz)Comments
146.040146.640136.5136.5Note 1

Note 1:  The 146.64 MHz repeater has two special features:

  • It repeats both traditional analog FM and digital voice mode Apco P25. FM users can use 136.5 Hz Tone Squelch to mute digital voice “noise”.  P25 users should select NAC 293.
  • EchoLink® is available on our 146.64 MHz repeater. Connect to us via W1MHL-R, Node 490278.  To make outgoing connections over the air, touch-tone 64 and the Node number to connect, # to disconnect.  For more information about EchoLink, and to download the free software to use Echolink on a PC or mobile device:


Simple? Yes, but it’s often harder than you might think. It means that you do not say anything over the air that acknowledges that transmission.

·         Do not say “Did you hear that?”
·         Do not say “I couldn’t hear you because someone was throwing a carrier”
·         Do not complain about it.
·         Do not say ANYTHING that would tell the person that he is making it into the repeater.

Repeater Nets
Nets on the Waltham ARA 146.64 Repeater
Net NameDayTimeDescriptionNet Manager
Waltham Wranglers Swap NetWednesday9:00 PMBuy Sell and trade amateur radio equipment. Wants and offerings MUST be clearly amateur radio related. Can't get enough Swap Net? Visit our Yahoo! Group, "WalthamWranglersSwapNet"John Flood, N1JAF
SkywarnAs NeededAs NeededMeets as needed during severe weather. The Skywarn program helps the National Weather Service protect life and property by using weather spotters and amateur radio operator reports to make precise predictions. Those interested in participating should be properly trained. Several training sessions are coming up. For more info, contact: Skywarn Coordinator Rob Macedo KD1CYTerry Stader, KA8SCP


Wara repeater site view toward Boston