18-04-2014, 01:20 PM
A conservative choice is 600m; a 867/939 dc track is ac immune over that length. Can get certain tracks up to 1000m- from memory a TI21 (now evolved into Ebitrack 200) is useable up to that if have good track and can use the highest gain setting. The Western Region Quick Release I think could be around 1400m in good conditions (but only where no electric traction).
For the exam then I think no eyebrows would be raised at 800m
For the exam then I think no eyebrows would be raised at 800m
(17-04-2014, 08:15 PM)dorothy.pipet Wrote: Assuming I'm signalling a layout with Track Circuit Block working and Track Circuits (not Axle Counters), what would be a reasonable maximum TC length to assume in the exam (for plain line sections, long signal spacing).
I'm thinking somewhere between 600m and 1000m - any advice please?
PJW