| Author |
Message |
    
Highlander
| | Posted on Monday, February 16, 2004 - 6:54 pm: | 
|
Can the Grant LT be expanded for freeband frequencies? If so, how?
Thanks. |
Bruce
| | Posted on Monday, February 16, 2004 - 9:40 pm: |
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I saw this mod and have no idea if its valid but check it out ......
1-Install two spst switches, or make two of the front panel switches available.
2- Wire one of the switches to where it grounds pin 10 of the pll chip
3- Wire the ohter switch to where it connects pins 11 and 12 together..
The frequency range is now 26.815-28.045 |
2ir473
| | Posted on Monday, February 16, 2004 - 9:48 pm: |
|
Forget who put this on the web, so sorry I can't credit them, but one this works.
The grant lt is very easy to modify. You can do it very easily with two single pole switches. Connect one switch from ground to pin # 10 and connect the other switch from ground to pin # 11. That's it. You're done.
Both switched open = normal channels
Both switches closed = middle HF channels
Switch for pin # 10 closed = upper HF channels
Switch for pin # 11 closed = below one channels
I may may switch 10 and 11 funtions backwards but you should get the general idea.
use the Bright and dim and also the Hi and Low tone switches.
Here is the channel map after the above mod
channel FREQUENCY FREQUENCY FREQUENCY
1 - 27.605
2 - 27.615
3 - 27.625
4 - 27.645
5 - 27.655
6 - 27.665
7 - 27.675
8 - 27.695
9 - 27.705
10 - 27.715
11 - 27.725
12 - 27.745
13 - 27.755
14 - 27.765
15 - 27.765 27.455 26.815
16 - 27.795 27.475 26.835
17 - 27.805 27.485 26.845
18 - 27.815 27.495 26.855
19 - 27.825 27.505 26.865
20 - 27.845 27.525 26.885
21 - 27.855 27.535 26.895
22 - 27.865 27.545 26.905
23 - 27.895 27.575 26.935
24 - 27.875 27.555 26.915
25 - 27.885 27.565 26.925
26 - 27.905 27.585 26.945
27 - 27.915 27.595 26.955
28 - 27.925
29 - 27.935
30 - 27.945
31 - 27.955
32 - 27.965
33 - 27.975
34 - 27.985
35 - 27.995
36 - 28.005
37 - 28.015
38 - 28.025
39 - 28.035
40 - 28.045 |
Highlander
| | Posted on Tuesday, February 17, 2004 - 7:53 am: |
|
Thanks guys! |
|
