[R-390] W. RF Alignment
Flowertime01 at wmconnect.com
Flowertime01 at wmconnect.com
Sun Mar 20 12:25:44 EDT 2011
W. RF Alignment
___ 01 Install a 600 ohm resistor on the line level output.
___ 02 Place a meter and 600 ohm load on the Local Audio output TS 585
___ 03 Connect the generator to the receiver's balanced antenna input
___ 04 Place a DC meter on the diode load
___ 05 Turn the receiver on and allow it to warm up for 1 hour
___ 06 Turn the signal generator on and allow it to warm up for 1 hour
___ 07 Set the R390 or R390A Function switch to "MGC
___ 08 Set the R390 or R390A Bandwidth to 2kc
___ 09 Set the R390 or R390A RF gain full CW (Clock Wise)
___ 10 Set the R390 or R390A AF line gain full CW
___ 11 Set the Line Meter range switch to + 10
___ 12 Set the R390 or R390A AF local gain full CW
___ 13 Set the R390 or R390A BFO off
___ 14 Set the Audio response to wide
___ 15 Set the Limiter to off
___ 16 Set the receiver and generator to the same frequency of choice
___ 17 Rock the generator for a peak in to the band pass
___ 18 Set the initial generator output to 10uv
___ 19 Set the generator modulation level to at 30% 400 Hz or 1 KHz
___ 20 Use the Ant Trim to peak the receiver
___ 21 Reduce the signal generator RF output for -7 volts DC
___ 22 Use 550 for L213, L224-1,, L224-2 Slugs 1st Octave
___ 23 Use 950 for C201-B, C230-1, C230-2 Caps 1st Octave
___ 24 Use 1,100 for L215-1, L215-2, L215-3 Slugs 2nd Octave
___ 25 Use 1,100 for C291-1, C291-2, C291-3 Caps 2nd Variable IF
___ 26 Use 1,250 for L232-1, L232-2, L232-3 Slugs 1st Variable IF
___ 27 Use 1,900 for L233-1, L233-2, L233-3 Slugs 2nd Variable IF
___ 28 Use 1,900 for C205-B, C233-1, C233-2 Caps 2nd Octave
___ 29 Use 2,250 for L217, L226-1, L226-3 Slugs 3rd Octave
___ 30 Use 3,800 for C209B, C236-1, C26-2 Caps 3rd Octave
___ 31 Use 4,400 for L219, L227-1, L227-2 Slugs 4th Octave
___ 32 Use 7,250 for C283-1, C283-2, C283-3 Caps 1st Variable IF
___ 33 Use 7,600 for C213B, C239-1, C239-2 Caps 4th Octave
___ 34 Use 8,800 for L221, L227-1, L227-2 Slugs 5th Octave
___ 35 Use 15,200 for C217B, C242-1, C242-2 Caps 5th Octave
___ 36 Use 17,600 for L223, L229-1, L229-2 Slugs 6th Octave
___ 37 Use 30,400 for C221B, C241-1, C241-2 Caps 6th Octave
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