Cobra 148GTL-DX - Page 63

C148GTL DX ALIGNMENT PROCEDURE
STEP
PRESET ТО
ADJUSIMENT
REMARKS
7
Same as Step 3.
VR12
Adjust for 24.5V reading on RF VTVM.
8
Same as Step 1.
VR 7 Adjust for Min. reading on Spectrum
Analyzer for both USB and LSB.
9 Same as Step 1,
except:
Mode :AM
VR13 Adjust for 5.0W reading on RF Power
Meter.
10 Same as Step 9. VR 8 Set the meter SW to S.RF position.
Adjust the VR 8, so that the radio's
meter reads 5W (Between Green zone and
Red zone).
11 Same as Step 9,
except Mic input
30mV.
VR14
Adjust 90% modulation on Oscilloscope
12
Same as Step 1,
except:
Mode SW: Ш
Band : 40
Mic input 30mV
VR 5
Adjust for 5kHz déviation.
13
Same as Step 12,
except:
Mode : CW
VR15 Adjust 0.2V reading on AF VTVM
when CW key is keyed.
14
Same as Step 1,
except:
CH9 SW : CH9
Check that the output frequency is
27.065MHz.