| Author |
Message |
    
Freebird
Intermediate Member
Username: Freebird
Post Number: 495
Registered: 1-2003
| | Posted on Sunday, October 01, 2006 - 3:02 am: | 
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Is there a mod to get channels 41 to 44 on a uniden madison and a uniden washington?they also seem to skip a few other channels above 40 here and there is there a mod for those too?thanks |
Starface
Advanced Member
Username: Starface
Post Number: 785
Registered: 1-2005
| | Posted on Sunday, October 01, 2006 - 2:10 pm: |
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you can do one of two things
1. Add a expro kit 100
that will give you 40 channels above and below the normal 40 cb channels.
or
2.Add a Digi Scan 400 to it and you'll go from
25.999-28.000 MHz
I have a Uniden/President Washington with the Digi Scan and lets me get 25.999-28.000 MHz on it.
Good Luck
Starface |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 3238
Registered: 7-2004
| | Posted on Sunday, October 01, 2006 - 4:56 pm: |
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madison is like the grant xl:
SPST switch mb8719 pins 11 & 12 to each other
SPST switch mb8719 pin 10 to ground
SPST switch mb8719 pin 9 to IC side of cut trace at pin 14
the 9 to 14 switch gets you .415-.445 on 37-40.
washington is the same but crystal needs to be changed, in fact 99% of mb/rci8719 radios mod for channels this way, just some need xtal swap. MOST BUT NOT ALL mmb8719/mb8734 radios will mod this way too, if you change to mb/rci8719 chip
to get the skipped 'A' channels add a + and/or 10 kc switch, or go with the BIG clarifier mod that gets 15-20kc slide range. it'll cover 12-15 one way & 3-5 the other. |
Fusebreaker
Intermediate Member
Username: Fusebreaker
Post Number: 231
Registered: 3-2004
| | Posted on Saturday, November 18, 2006 - 4:34 am: |
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DO NOT DO PIN 14 it has issues,you can cut the trace to pin 13 and install a switch and you will get uniden grant/148/madison (mb8719)
ch / freq
36 27415
37 27425
38 27435
39 27445
it took me 2 yrs to find that mod no one wanted to let it slide out of there wallet if you get my drift. Enjoy |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 3373
Registered: 7-2004
| | Posted on Monday, November 20, 2006 - 11:49 am: |
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what are the issues, fusebreaker? the pin 14 mod has worked for 20 years. |
Fusebreaker
Intermediate Member
Username: Fusebreaker
Post Number: 237
Registered: 3-2004
| | Posted on Tuesday, November 21, 2006 - 4:31 am: |
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not really issues i guess i stated that wrong,less involver with pin 13 on pin 14 you have to use a resistor right? |
Yankee
Senior Member
Username: Yankee
Post Number: 1404
Registered: 7-2003
| | Posted on Saturday, December 30, 2006 - 9:50 am: |
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If using pin 13 for channels 41-44 the channels come up on these channels.
Chnl. 33-41
Chnl. 34-42
Chnl. 35-43
Chnl. 36-44
When using pin 13 to get channels 41-44 no bridge resistor is required.
At present it's a little difficult to locate a model L Expo kit, as they are now out of production. |
