Bob, Yes, a simple 8 bitter, even a PIC could make a DTMF, RS232, or about anything else except maybe Ethernet or 1553 put out the bit stream and read any rig on the market. For Ethernet or 1553 ($1000/port), etc an off the shelf interface could be used. It could also read the weather stations, packet, PSK31, etc etc etc.
This is garage low level electronics that is old 30 year old technology. However, setting down and doing it can be a chore especially if the rigs are taking in data in different formats such as the ICOMs of old that grouped digits together where some sent individuality. Also bet one could come up with 50 formats that has been used in rigs over the last 20 years. Obviously HRD was a garage project and doable. Also leading command data. Again very old and really easy to do, but takes hours to do. Most even 30 year MPUs have built in serial ports with multi-speed programmable serial ports and most rigs use a RS232 port. All is simple, just doing it. Of course building a 5000 sq ft house is doable, old tech, etc just one has to do. This is the issue. Even allowing for remotely selecting with say DTMF the format one wants is simple. 73, ron, n9ee/r >From: [EMAIL PROTECTED] >Date: 2008/05/04 Sun AM 11:19:48 CDT >To: [email protected] >Subject: Re: [Repeater-Builder] Re: Still looking for an RBI-1; maybe I have >to build one > >At 5/4/2008 04:48, you wrote: > >>Setting up a remote base can be a chore. >> >>Now if one wants freq control then the various manufactures use different >>standards requiring a custom interface for each. > >I think microcontrollers of today are capable enough to handle this. All >that is needed is some memory to handle lookup tables for the various >protocols & extra program code, and maybe even a DTMF encoder for >controlling radios like the Kenwood TM-G707. Speed should not be an issue. > >Bob NO6B > > > Ron Wright, N9EE 727-376-6575 MICRO COMPUTER CONCEPTS Owner 146.64 repeater Tampa Bay, FL No tone, all are welcome.
