| Author |
Message |
    
Af579
Member
Username: Af579
Post Number: 59
Registered: 6-2003
| | Posted on Sunday, April 30, 2006 - 10:59 pm: | 
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Is there a freq. modification for this radio? The original mb-8719 chip modification we are having no luck with. How do we modify the rci8719 version?
Thanks |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 2803
Registered: 7-2004
| | Posted on Monday, May 01, 2006 - 3:59 pm: |
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the mb8719 & rci8719 mod the same. the mmb8719 doesn't mod for freqs. the mb8734 needs to be changed for any mods. i have seen 148f gtl with 8734, which was in some of the NWST radios & needed to be changed to mb/rci8719 1st.
what did you try & what were the results? |
Af579
Member
Username: Af579
Post Number: 61
Registered: 6-2003
| | Posted on Tuesday, May 02, 2006 - 9:50 am: |
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Very weird. yes it worked just like the old mb8719. we compaired 2 148 gtl-f radios they both had the RCI 8719 but the one we were trying to mod had the pin 1/18 mark on the wrong side of the chip????? I have never seen this before. I even compaired it to several others I have in stock and the mark was placed on the wrong side. |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 2805
Registered: 7-2004
| | Posted on Tuesday, May 02, 2006 - 5:03 pm: |
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did you do the mod using the mark, or where pin 1 SHOULD be?
i'd check for known voltages, based on where pin 1 SHOULD be & do it that way, not just going by the mark. |
Af579
Member
Username: Af579
Post Number: 62
Registered: 6-2003
| | Posted on Tuesday, May 02, 2006 - 7:25 pm: |
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yea i checked the voltages. we got it working now. the mark was in the incorrect spot. |
Canon5218
New member
Username: Canon5218
Post Number: 5
Registered: 8-2006
| | Posted on Tuesday, August 15, 2006 - 7:22 pm: |
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So Patzerozero and AF your both saying the RCI and MB both modify the same? Is the MB the only one that will NOT modify for channels? |
Yankee
Senior Member
Username: Yankee
Post Number: 1282
Registered: 7-2003
| | Posted on Tuesday, August 15, 2006 - 9:18 pm: |
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Canon, They are saying it's the MMB-8719 PLL that's not mod friendly. But somewhere here on the forum there was posts about the MMB-8719 PLL being modified. It's the MB-8734 PLL that doesn't mod. The Cobra 2000-GTL and a few other radios comes stock with the MB-8734 PLL and must be changed to the MB-8719 PLL to do the mods. |
Canon5218
New member
Username: Canon5218
Post Number: 6
Registered: 8-2006
| | Posted on Wednesday, August 16, 2006 - 7:25 am: |
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So the RCI PLL mods the same...cool. I think the MMB8719 will not mod also from what I am reading. |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 3149
Registered: 7-2004
| | Posted on Saturday, August 19, 2006 - 12:18 pm: |
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the MMB doesn't do the FULL mod...& some MMB's will not mod at all do to programming of the chip in the factory. not sure if there is any distinguishing mark on those, though. stick with the rci or mb version & you'll be good. they can also be swapped into MMB & 8734 version radios! |
