With the advent of Motorola switching to more Windows based RSS (CPS), the time has come to develop new out of band hacks, again.

Hopefully, the information presented below should get you started in modifying the RSS for out of band operation. Development is still underway and the hacks have not been fully tested. So, take the necessary precautions!

Astro Mobile

This example is for the Astro Spectra:

• Load AstroMob.exe into Hex Workshop
• Open the Base Converter
• Set the mode to Intel unsigned long
• Search for your band limit in Hertz, example = 136000000

The first occurrence should be around 0x00AEDD8C.

If you keep searching you should end up finding all the following tables:

00AEDD8C 136 403 450 830 136 146 136 136 403 438 450 453 433

00AEDDD4 136 403 445 830 133 142 136 136 403 438 440 453 475

00AEDE1C 136 403 450 825 136 146 136 136 403 438 450 450 482

00AEDEF4 136 403 450 830 136 146 136 136 403 438 450 453 482

00AEDF3C 136 403 445 830 133 142 136 136 403 438 440 453 475

The limits have been rounded off from Hz to MHz. There are lots of 800/900 MHz band edge info outside the table ranges shown here. They are still under investigation.

These first five tables look like lower band edges while the last two (below) are top band edges.

OK, so we've found some low band edges, lets look for the high band edges. Starting with 178 MHz we find this around 0x00AEDF84.

00AEDF84 178 470 520 915 162.55 174 174 174 433 470 482 490 512

00AEDFCC 179 477 521 915 171 175 174 174 441 470 491 490 515

Which, of course, are the top edges.

Now you know where all the tables should be. Now you can go ahead and modify the limits as you require to stretch the bandsplit for the radio you are trying to program. But be careful, don't change every occurrence unless it is clearly in a sequence of band edges at the top or bottom edge as required! You need to inspect either side of your suspected band edge to make certain it is not actually a bit of code you've found.

VHF/UHF Astro Spectra frequency ranges published in the service manual are:

• 136-162
• 146-174
• 403-433
• 438-470
• 450-482
• 482-512

Astro Portable

OK, now for the Astro Portable Windows CPS (R01.00.00)...

The process is the same as used above on the mobiles. The only difference is the location of the bandsplit tables.

The lower edge tables should be located as follows:

00AC47EC 136 403 450 830 136 146 136 136 403 438 450 453 482

00AC4834 136 403 445 830 133 142 136 136 403 438 440 453 475

00AC487C 136 403 450 825 136 146 136 136 403 438 450 450 482

00AC4954 136 403 450 830 136 146 136 136 403 438 450 453 482

00AC499C 136 403 445 830 133 142 136 136 403 438 440 453 475

And the upper limit tables as:

00AC49E4 178 470 520 915 162.55 174 174 174 433 470 482 490 512

00AC4A2C 179 477 521 915 171 175 174 174 441 470 491 490 515

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