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Tam Valley no longer in radio-control
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 Posted: Tue Nov 7th, 2017 07:30 pm
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davecttr
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It is a pity that Tam Valley could not sell enough product to make it viable to carry on production but I suspect that low sales volumes plague many manufacturers.

Why could they not sell enough systems? Was is it a high price or poor specification?

What is it that DCC'rs want in a radio control system? Or maybe they are just not interested in a product that could enhance their hobby's enjoyment?

This little recent anecdote from a forum over here interests me. A group were using radio throttles with their well known DCC system at exhibitions. They have gone back to using cabled throttles because of interference at exhibitions. Apparently the problem is multiple same make radio throttle systems in the exhibition hall interfere with each other and can steal control of your locos! I wonder if this has led to them thinking all radio is bad and reinforcing their preconceived doubts.



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 Posted: Wed Nov 8th, 2017 12:08 am
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Simon Dunkley
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What I want, is what Tam Valley provided. I can do the other bits (voltage regulators, battery protection, etc) myself, or even set it up using an Arduino Mini Pro plus 2.4GHz Wireless (although the nature of the command signals is a bit cumbersome for the processor).

But ideally, to gain a wider market sector, all the extra bits and pieces would be on a single board, which plugs into the DCC socket on existing models, and which itself contains a socket for the DCC module, to which us attached a 1S1P battery, either that or a stabilised 3S1P with four wires, etc.
Edit: There is also the added perceived issue that until the NMRA creates a standard, anything purchased may go out of date... This isn’t an area where the NMRA needs to get involved, of course, but such is the power of conformity to standards.

Last edited on Wed Nov 8th, 2017 12:13 am by Simon Dunkley



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 Posted: Wed Nov 8th, 2017 12:10 am
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Simon Dunkley
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davecttr wrote: This little recent anecdote from a forum over here interests me. A group were using radio throttles with their well known DCC system at exhibitions. They have gone back to using cabled throttles because of interference at exhibitions. Apparently the problem is multiple same make radio throttle systems in the exhibition hall interfere with each other and can steal control of your locos! I wonder if this has led to them thinking all radio is bad and reinforcing their preconceived doubts.The answer to which is to use something like Bluetooth or standard network protocols.

Last edited on Wed Nov 8th, 2017 12:13 am by Simon Dunkley



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 Posted: Wed Nov 8th, 2017 12:19 am
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bobquincy
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davecttr wrote: ...snip...A group were using radio throttles with their well known DCC system at exhibitions. They have gone back to using cabled throttles because of interference at exhibitions. Apparently the problem is multiple same make radio throttle systems in the exhibition hall interfere with each other and can steal control of your locos! I wonder if this has led to them thinking all radio is bad and reinforcing their preconceived doubts.
I don't know if Tam Valley radios used frequency hopping or not but 2.4 GHz DSM2 is advertised as being very resistant to interference.  Spektrum shows where they had 100 xmtr/rcvr pairs operating in one room and reported zero interference!



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 Posted: Wed Nov 8th, 2017 04:24 am
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Bernd
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Tam Valley uses 916MHz or 869MHz. Not as sophisticated as the 2.4GHz spread spectrum and prone to interference. 
Bernd

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 Posted: Wed Nov 8th, 2017 12:39 pm
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davecttr
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Maybe that DCC radio throttle problem was not using 2.4Ghz either. I will have to try and find out.

Over here Hornby's cheaper Railroad Range are now being sold with cheap DCC sound chips as standard. They have power bogies and traction tyres giving lots of space for RC equipment and battereies but that space is full of speaker etc.

Maybe the minimum RC setup for commercial success has to include on board sound and lights?



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 Posted: Wed Nov 8th, 2017 03:13 pm
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Helmut
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The frequency alone doesn't say anything about the transmission technique used. FHSS/DSSS is possible in both 868/900MHz and 2.4 GHz bands, but you can employ simple narrow band FM as well and be prone to interference.



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 Posted: Wed Nov 8th, 2017 03:27 pm
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davecttr
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I think the DCC system was NCE which uses 916.5Mhz



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 Posted: Wed Nov 8th, 2017 04:25 pm
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Nice Guy Eddie
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" We have 6+ pages in this thread, and 5 of them have nothing to do with the OP

Much of that dross appears to be the output of a moderator, too.

Hardly a good advert for Free Rails."



Hi Guys

A member has complained about this thread

It is not the regular policy of Freerails to tell members what they can or cannot post

But in view of the members specific complaint

I am considering deleting these posts



3    davecttr

5    Rod Hutchinson

6    Helmut

7    Rod Hutchinson

8    Si.

9    mdrailbaron

10  Michael M

11  davecttr

12  Si.

13  Helmut

15  mdrailbaron

16  W C Greene

17  Si.

19  mdrailbaron

20  jtrain

21  bobquincy

23  Bob D

24  jtrain

25  bobquincy

28  Bob D

29  jtrain

30  Bob D

31  Si.

32  Bob D

33  Si.

34  Bob D

35  Si.

36  jtrain

38  Michael M

39  Si.

40  Tony Walsham

41  jtrain

42  W C Greene

43  Si.

44  Si.

45  Rod Hutchinson

46  Si.

47  Bob D

49  davecttr

50  bobquincy

51  W C Greene

52  Michael M

53  Rod Hutchinson

54  Si.

56  dan3192

57  Rod Hutchinson

58  Bernd

59  Rod Hutchinson

63  Simon Dunkley

66  davecttr

67  Helmut

68  davecttr


:f:


Eddie
 



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 Posted: Wed Nov 8th, 2017 06:02 pm
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slateworks
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That would seem to be a pity. One doesn't have to read the posts if they're becoming boring but for others the titbits of additional information add to the knowledge bank and understanding. You can't satisfy all of the people all of the time - whatever the issue!



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