Advice Needed Amiko DM2400 (DG240) motor would not turn to western positions

ac1139

ac1139

Member
Joined
Jun 30, 2018
Messages
54
Reaction score
29
Points
18
My Satellite Setup
120 cm PF, 180 cm offset.
My Location
100 km north of Vienna
I can remember from discussion on the other forum, that some receivers are not able to provide enough current for diseqc motor and/or cable run has low quality to carry such current. And it can cause problems.

It`s long time ago, so I can`t remember details.
 
ozumo

ozumo

te wo tsuite
Staff member
Joined
May 26, 2020
Messages
5,312
Reaction score
2,708
Points
113
My Satellite Setup
Raven mk2 zone 2 x4, Channel Master: 90cm x3, 1.2m x2, 1.8m PF. CM polar mount x2, Az/El x3.
My Location
South Durham
pbasista said:
Hi, FYI, I have created a Python tool called diseqc-tool for experimenting with custom DiSEqC commands. It should be possible to easily run it on any Linux-based receiver, notably on an Enigma2 receiver, without the need to install additional dependencies.
Click to expand...
It enables an Enigma2 receiver to send any DiSEqC command, not just those for switch/motor control? For example to switch a SUP2400 on and off:
www.satellites.co.uk

..and so it begins ..

..My Directv lnb arrived this morning ..a strange looking beast to be sure .. The B band IF convertors are still in transit ..but first things first.. First job ..get it mounted . Neil being the experimental type ..was chosen ..mostly because he's 1.2m ..and a convenient height at which to work...
www.satellites.co.uk www.satellites.co.uk
If yes that would be useful for QO100 :cool:
 
jeallen01

jeallen01

Specialist Contributor
Joined
Oct 12, 2003
Messages
6,674
Reaction score
2,630
Points
113
My Satellite Setup
See Signature
My Location
Somewhere in England (possibly?)!
ac1139 said:
I can remember from discussion on the other forum, that some receivers are not able to provide enough current for diseqc motor and/or cable run has low quality to carry such current. And it can cause problems.

It`s long time ago, so I can`t remember details.
Click to expand...
Then, maybe it's a combination of two or three separate issues: the receiver current capbility (as you mention above - particularly for the physically small receivers with even smaller power supplies/circuits), a "sticky" gearbox (especially in cold weather when the grease will be thicker &/or tolerances may have closed up) &/or microcontroller corruption as discussed earlier?????

TBH, I've always been somewhat surprised that receivers not much larger than the proverbial "fag packet" are able to drive the motors under relatively large dishes (1m & above).

Edited: and maybe again there's a fourth factor, i.e. the length and type of the cable(s) connecting the receiver to the motor - especially if there cable damage &/or there are other switches (DiSEqC, Priority, or otherwise) and cable joints, all of which will introduce some extra voltage losses between the two?
 
Last edited:
P

pbasista

New Member
Joined
Dec 28, 2022
Messages
4
Reaction score
4
Points
3
Age
54
My Satellite Setup
none
My Location
none
ozumo said:
send any DiSEqC command, not just those for switch/motor control?
Click to expand...
Yes, the binary payload representing the DiSEqC command to send needs to be provided by the user. It is therefore fully customizable.

From my experience, however, it seems that the DVB frontends that are typically used in satellite receivers only support sending the DiSEqC commands. They are typically unable to receive the replies from other connected DiSEqC devices, i.e. they do not support DiSEqC version 2.

Receiving data from DiSEqC devices might be beneficial e.g. for reading a positioner's status.
 
Top