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I am using a Legacy base 2 with a TMCC base 1 and a TIU to run various DCS, TMCC and Legacy engines. Lately I seem to be getting more and more issues with communication with various TMCC engines using Cab1's and a CAB 1L. I retired a spare command base a couple of years ago for the same reason. My guess is that they have drifted off frequency and need to be re-tuned. As a temporary measure though I am wondering if I can swap in my base 1L in place of the base 1, and still run TMCC engines with either a Cab1 or a Cab1L?

Rod

Original Post

So it turns out after some testing, that out of 4 TMCC command bases (how did I happen to get that many?), 3 of them seem to work and run engines just fine. And the one I had on the layout seems out of tune and mostly not responsive. Simple matter to replace it with a good one and all is well once again. Now I may give a try to the re-tuning method developed by Dale Manquen and see if I can get it operable as a spare. It also happens to have the oldest date code of the works; 1998. Yikes! The rest are '02 to '04 date code.

Rod

Last edited by Rod Stewart

Another weird discovery: With the base 1 and Legacy base 2 hooked up as above in the OP, and since the cab1L only talks to the Legacy base; not the base1, how come when using the cab1L the red light on the old base 1 flickers on and off, just as if you were using cab1?? I am a bit puzzled by this.

I was able to re-tune the unreliable base 1 I replaced using Dale's technique, no problem. The full range of rotation for L8 where it would operate the whistle was only about 1/4 of a turn. And the position I left it in is about 1/8 turn from where I found it, so it seems it was borderline out of tune. Seems to work fine now.

Rod

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