he only difference between the old and new versions of the RCI2950 is the new CPU board. They require slightly different modifications.

                                                                                        Old Version

The old version of this radio can be expanded from 26 Mhz to 32 Mhz. Although the use of the 30 -32 Mhz range may need realignment.

First find the PC board with the jumpers on (behind the front panel).Then find 'J2',there is a jumper on pins P3 and P4.If this is jumper

 is removed you will get coverage from 26 Mhz to 29.7 Mhz.

If this jumper is then place on P1 and P2 coverage will be from 26 Mhz to 32 Mhz(re tuning may be needed to operate in 30-32 Mhz range).

The CPU now needs to be reset by pressing the button located below 'J2'

New Version

As the CPU board has changed the modification is different. On the CPU board there is only one jumper with two positions available.

In one position it covers 28 Mhz to 30 Mhz, In the other it covers 26 Mhz to 30 Mhz. But if you jump all three pins together

you'll get 26 Mhz to 30 Mhz.(If this is incorrect PLEASE tell me

roblem..........Clarifier Mod (open) for the Mirage/Ranger RCI-2950

The Fix:

First I must assume that you have the "proper" equipment for this modification.

• Locate R-197
• Unsolder the wire lead side of this resistor that goes to the black wire of plug
• Make sure that the "hole" is cleaned out good from where R-197 was removed
• Solder a piece of wire from this hole to Pin #3 of IC6  (about 6 inches)
• Remove D-59

Let your radio "cook" for a couple of hours to get "used" to the new modification

Full Time "Talk Back"

• To fix:   Remove D - 78

• RCI - 2950 & 2970   Other Tips

  1.  Receiver Temporarily Shuts Down

  • To fix:   This is an AGC overload.  Locate R49, a look resistor and replace with a 470K resistor.

  2.  Very "Noisy" Receiver

  • To fix:   Locate R78, a 2.2 K resistor and replace with a 6.8 K resistor.

Replace the 2SC1674 (Q18) with an 2SC2999 (or similar low noise and high gain transistor)
o achieve this improved signal to noise ratio. Re-Adjust L8 and L9
The gain will improved with more than 6dB with the same signal to noise ratio.

Adjustment points of RCI-2950 series

Click on the image to see a bigger view of the main board.11 Kb.

After you have the module installed, you can trick it into going to any frequency between 18.9251-36.1049mhz!
This involves a little math but you can do it!!

• You first program the split function...for our example we will use 6.965mhz..
  
   
• After this is programmed leave the spit function at -split..
  
   
• Next press manual to get to the cb display and have it on ch 1..
  
   
• Press the mic key momentarily and notice the buzzz from the radio, it's because the spit function is still active..
  
   
• Press Man again.. and Bingo "(UNQUOTE) ......

I have tried this without the module (i don't even know what module is being mentioned) and would you believe i can actually transmit and receive
on these frequency's.... In order for it to be a 100% right i will hafe to re-align the radio again........ Kind of sounds like the AR3500 in a small way...
My self i can't wait till the future when the rest of this radio's secrets are reveled

1. 1- Radio must have the module connected to rx/tx from 32.000 - 24.000 mhz.
   
    
2. 2- Open radio on the speaker side.
   
    
3. 3- Face the back side of radio towards you. leaving the front panel away from you.
   
    
4. 4- Looking where the module is plugged in on the back side of the front panel there will be 2 sets of pins right above
5. the module plug in. connect the 2 right pins together.
   
    
6. 5- Reassemble the radio.
   
    
7. 6- Turn radio on and radio should start at 21.000.

I have done this modification but have not TX on an antenna. It does TX RF but not sure how well the RX is.

Please don't do this modification if you are unsure or uncomfortable with this mod. I take no responsibility on the outcome

 RCI 2950-2970 alignment

RCI 2950 New Model, Extended RX/TX

Replace the bottom cover and you now have continuous coverage from 24-32 Mhz (but output may be reduced over 30 Mhz).

Press the "MAN" button and the display changes to the CB mode with channels 1-40 available.

Press again to restore VFO display. Be advised that this rig is NOT FCC type accepted for CB use despite the manufacturer's

provision of a CB channel display.

Amateur Ops, do not jeopardize your priveledges by transmitting on out-of-band frequencies or on the chicken band.

The best use of this mod is as a driver for a 10M to 2M transverter such as the Ten-Tec 1210, providing all modes and full coverage

of the 2 meter ham band using 28 to 32 Mhz

Frequency Modification for Ranger RCI-2950

1. 1- Remove the case. I *think* you can remove either the top cover or the bottom cover to get to the PC board
   with the jumpers. It will be a small PC board immediately behind the front panel.
   
   2- Locate "J2". There will be a jumper on pins P3 and P4.
   3- Remove this jumper to expand coverage to 26 MHz - 29.7 MHz.
   4- Move the jumper from P3-P4 to P1-P2 to expand coverage to 26 MHz - 32 MHz.
   5- After moving (or removing) the jumper, press the CPU reset button (located below J2).

CB Channel Readout Modification

1. 1- Locate J3. There is a jumper between P1-P2.
2. 2- Remove the jumper and place it on P2-P3.
   3- Press the "roger beep" button to go directly to CB Channel 9.

Pin 1  -- shield
Pin 2  -- Audio
Pin 3  -- Transmit
Pin 4  -- Receive
Pin 5  -- Frequency select up       These might be reversed.
Pin 6  -- Frequency select down  /