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Robyn executive 240 or GEMTRONICS GTX-5000 channel mod info

dss56

Well-Known Member
Sep 27, 2010
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If anyone has done the channel mod on either of these radios Robyn executive 240 or GEMTRONICS GTX-5000
both radios have the MSM5907 pll to do channel mod, Im looking for a channel list after doing the mod.
Supposed to get uppers and lowers and would appreciate if someone has a channel mod list.

thanks
 

All the info I have on these rigs is: Connect pin 3 of the pll chip to pin 5 for extras.
Connect pin 2 of the PLL to pin 5 for more extras. No freq chart. . . Sorry.

- 399
 
All the info I have on these rigs is: Connect pin 3 of the pll chip to pin 5 for extras.
Connect pin 2 of the PLL to pin 5 for more extras. No freq chart. . . Sorry.

- 399
I have the pll mod info just wanted a channel chart.
 
As I understand it with the Pin 3 mod you will get the following frequencies

Chan 12 - 27.425
Chan 13 - 27.435
Chan 14 - 27.445
Chan 15 - 27.455
Chan 16 - 27.475
Chan 17 - 27.485
Chan 18 - 27.495
Chan 19 - 27.505
Chan 20 - 27.525
Chan 21 - 27.535
Chan 22 - 27.545
Chan 23 - 27.575
Chan 24 - 27.555
Chan 25 - 27.565
Chan 26 - 27.585
Chan 27 - 27.595

I think Chan 1 thru 11 is Chan 28 thru 40 minus Chan 31 & 36
And Chan 28 thru 40 are normal

No info on the pin 2 mod
 
As I understand it with the Pin 3 mod you will get the following frequencies

Chan 12 - 27.425
Chan 13 - 27.435
Chan 14 - 27.445
Chan 15 - 27.455
Chan 16 - 27.475
Chan 17 - 27.485
Chan 18 - 27.495
Chan 19 - 27.505
Chan 20 - 27.525
Chan 21 - 27.535
Chan 22 - 27.545
Chan 23 - 27.575
Chan 24 - 27.555
Chan 25 - 27.565
Chan 26 - 27.585
Chan 27 - 27.595

I think Chan 1 thru 11 is Chan 28 thru 40 minus Chan 31 & 36
And Chan 28 thru 40 are normal

No info on the pin 2 mod
thanks for the chart. Im more so looking for the low chart as a friend wanted to know if he would get 26.915? And 26.895? hope someone will chime in
 

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    Hello gentlemen and Ladies. I have the dreaded RCI-2990 receive issue where my radio gets distorted when people get close to my location. I found the C90 Capacitor, but I can not for the life of me find the C89 capacitor. Can or does anyone have a picture of the exact location of C89 ? Thank you in advance, Wes
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