[chirp_users] What are the .img, .chirp, and .icf files all about?

Bruce MacAlister, W4BRU W4BRU at ARRL.NET
Mon Oct 13 12:35:10 PDT 2014


Thanks, Tom.  As a linear thinker it's nice to know how it all fits
together as in an electronic schematic.  I'm saving your description in my
Chirp directory.

-- 
73, Peace,سلام ,שָׁלוֹם, ειρήνη, Bruce ∞

On Mon, Oct 13, 2014 at 2:53 PM, Tom Hayward <tom at tomh.us> wrote:

> On Mon, Oct 13, 2014 at 9:40 AM, Bruce MacAlister, W4BRU <W4BRU at arrl.net>
> wrote:
> > I can save or export my TH-F6A and TM-D700 memories as a .csv file but
> not
> > as an .img or .chirp file. Yet my UV-82 can be saved as both .img and
> .csv
> > files. So, of course, I'm curious what these four file formats are about
> and
> > why some formats do not work with some radios.
>
> .csv - generic format that can be imported into any radio and opened
> with 3rd-party software such as a text or spreadsheet editor.
>
> .chirp - Chirp-specific format that can be imported into any radio. It
> predates CSV. Within Chirp, it has the same features as a CSV, but
> it's not easily editable outside of Chirp. CSV is recommended in place
> of .chirp.
>
> .img - an "image" downloaded from a clone-mode radio. This is a copy
> of the bits exactly as they are found on the radio (until you edit
> it). It's great for making backups of a specific radio, but not as
> good as CSV for transferring data between radios. .img files for
> different models or firmware versions of radios are [or may be]
> completely different and not interchangeable.
>
> All of the other formats supported by Chirp are for opening files
> generated by other programming software. Examples:
> - EVE software for Yaesu VX-5 (.eve)
> - Kenwood software HMK format (.hmk)
> - Kenwood commercial ITM format (.itm)
> - Icom Data Files (.icf)
> - ARRL TravelPlus (.tpe)
> - VX5 Commander Files (.vx5)
> - VX7 Commander Files (.vx7)
>
>
> I recommend building a CSV file that has the standard programming you
> want in all your radios. Save this CSV in the stock_configs folder so
> that it is available from the File > Stock Configs menu.
>
> Now, for each of your radios:
> 1. Download
> 2. Save the resulting .img as a backup
> 3. Import the CSV you built in the last step. This adds your standard
> channels to the .img file.
> 4. Save As the modified .img file with the date in the filename so you
> can remember when you last updated the radio
> 5. Upload to the radio.
>
>
> Tom KD7LXL
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