Ranger RCI-2950, Руководство по обслуживанию

Страница: 126 / 154

Press the "ENT" button while in CB mode for instand channel 9.
*NOTE: The battery and the CPU reset have been eliminated in the newer versions, the new system
uses memory capacitors for memory backup
IF YOU FILL BOTH PINS J1 AND J2 ON THE NEW VERSION OF THE RANGER 2950 YOU WILL GET 26.000-32.000 JUST LIKE
THE OLD VERSION.THE SAME FOR THE 2970. TRY IT IF YOU HAVEN'T YET.
Extra notes
In the early versions, there are two black plugs located near the center of the PC board on the rear of the LCD display.
Remove the right-hand plug for coverage down to 26.0000 MHz. The other plug was just hanging on one pin; use it to short
the two left-hand pins for coverage from 29.7000 to 32.0000 MHz. If for some reason either or both ranges do not come up,
press the white reset button next to the right-hand plug.
For some odd reason, later models were distributed with both plugs missing- possibly to keep some folks from monitoring
above 29.7000 MHz- so the radios came ready to operate from 26.0000 to 29.6999 MHz ! For replacement shorting plugs/
obtain Radio Shack #276-1512 (10 count for S1.39}, or equivalents from your local electronic store.
Next, notice the two black shorting plugs on the FAR right-hand and left-hand sides of the same PC board; first, the left plug.
You'll notice the plug shorting pins 1 and 2; use the plug to short pins 2 and 3. Press LOCK, which will result in a 40 channel
eleven meter readout. Press LOCK again and the frequency of the channel is displayed. Press MAN to revert back to normal
VFO. NOTE: frequency LOCK function is lost and SHF (shift) won't work after this change is made; see switch mod following.
Over to the right plug: again, this plug will be shorting pins 1 and 2; use it to short pins 2 and 3. Press R.BEEP to get instant
Channel 9. Press R.BEEP again and the frequency of channel 9 will be displayed {27.0650) Press MAN to revert back to VFO
status. NOTE the "roger beep" function is lost after this change; see switch mod following.
The above frequency modifications SHOULD NOT BE USED WITHIN THE U.S. except in dire emergencies or for MARS/CAP
functions with proper license/permits, although radio hobbyists can MONITOR activities outside the Amateur band such as the
range above 29.700 Mhz
* Frequency Modification *
Remove the bottom cover to gain access to the small PC board immediately behind the front panel. There will be a set of
jumpers marked "J1" and "J2". Move the jumper from the top two pins to the bottom two pins. Frequency coverage will now
be expanded to 26mhz-29.7mhz.
Press the "MAN" button to switch between CB operation and normal operation.
Press the "SHF" button while in CB mode to switch between CB channel readout and frequency readout. Press the "ENT"
button while in CB mode for instand channel 9.
*NOTE: The battery and the CPU reset have been eliminated in the newer versions, the new system uses memory capacitors
for memory backup
www.radioaficion.com