I'll chime in, I have it on a simplex node with simpleusb and it doesn't work. Made it 10,000 ms and no effect
 
GeorgeC
W2DB 2360
----- Original Message -----
From: tom
To: app_rpt-users@ohnosec.org
Sent: Wednesday, August 28, 2013 1:11 PM
Subject: Re: [App_rpt-users] RXONDELAY not working?

The chan_simpleusb.c code clearly has the rxondelay parameter. However, I tested it on a couple of half-duplex nodes and didn’t see any effect. A bug?

Tom / K5TRA