| Author |
Message |
    
Rumblefish
| | Posted on Thursday, June 19, 2003 - 12:16 am: | 
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Is the lsb oscillator crystal 11.2842 Mhz. This is the grant with the 858 in it. Thanks |
2600
| | Posted on Friday, June 20, 2003 - 1:56 am: |
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Hi Rumblefish,
That one runs LSB receive and transmit, sure enough.
73 |
2600
| | Posted on Friday, June 20, 2003 - 2:10 am: |
|
Hi Rumblefish,
I answered this one before I saw your previous post about lost LSB. Since the crystals are in sockets, you can identify a dead crystal by swapping it with its neighbor. The carrier crystals are at the very front edge of the circuit board behind the six small control knobs. The one closest to the right (your right) is the LSB carrier crystal. Put the radio on the antenna, and make sure you still have USB receive chatter. Switch the radio to LSB and pull the crystal nearest the center of the board. Now pull the one on the right side and insert the first crystal into that socket. If your receiver noise level returns, you need a 7.800 MHz crystal.
If this produces no change try pulling the 11.2842 crystal and inserting one of the other two next to it in that socket. If your channel chatter returns, that crystal is bad. This trick will identify a dead crystal, but the radio will be off frequency if you leave the 'wrong' crystal in one of the LSB sockets.
73 |
Rumblefish
| | Posted on Friday, June 20, 2003 - 10:51 pm: |
|
Thanks 2600, Looks like the 11.2842 is the culprit. rumblefish |
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