Fixed width file issue and resolutions

I have a fixed width file with no separators , but the file has JUNK characters in it and i know how to remove it. but in few cases these junk characters having created a mess by splitting single row into 2 or 3 rows.
I need to put them back to a single line like rest of the rows. This fixed width file as rows which is of length 1-484.

The only way to identify that the row is spilt into 2 or 3 rows is by its length only and that too is not consistent.

Example :
Row expected :

0401000000030020170628000000710000366400201706280002750035*T000100N101892928550383900000009201 00000000000008402017062800000020  0000006435000000000000000840A1E098D09D9279BE4000561510A00003220000000000000000000000FF                            05A17DD6318008000048000        83337602E0F8C80002420300    00000000000000                                                   0000002278BF8AC19546B1EE0012            A0000000042203                  A0000000042203                  R 000000199551

Row with the issue : CASE1 :

0401000000030020170628000000710000365400201706280001041125
T000100N101909856755446700000018201 00000000000008402017062800000000  00000067540000000000000008402ED730917E9D1DC040000B0810A04003240000000000000000000000FF                            083426C5739000000001000        83337602E0F8C800021E0300    00000000000000                                                   00000022F85D9594E4FC84E2031A            A0000000041010                  A0000000041010                  R 000000199442

Row with the issue : CASE2 :

0401000000480020170628000000830000656500201706280004755339
T000100N 
0000034655000000000000000840A6258473ADBF88E24000740110A04001220000000000000000000000FF                            06E09E43739000000008000        88131669E0F8C800021E0300    00000000000000                                                   00000022B050CC3E5A75C2E90012            A0000000041010                  A0000000041010                  R 000002274242

Welcome to the forum.

Why don't you post the method / script / code that you use to remove the junk characters? It might be better to avoid the errors in the first place than to run a second code to deal with them.

Welcome santoshkm,

I have a few to questions pose in response first:-

• What have you tried so far?
• What output/errors do you get?
• Can you show us the data piped through od -x so we can see the character codes? Having the original data on the next line would be useful too.
• What OS and version are you using?
• What are your preferred tools? (C, shell, perl, awk, etc.)
• What logical process have you considered? (to help steer us to follow what you are trying to achieve)

Most importantly, What have you tried so far?

There are probably many ways to achieve most tasks, so giving us an idea of your style and thoughts will help us guide you to an answer most suitable to you so you can adjust it to suit your needs in future.

We're all here to learn and getting the relevant information will help us all.

Thanks, in advance,
Robin