Model 6869 Specifications
SPECIFICATIONS
FREQUENCY RANGE: 8.2 to 12.4 kmc
SWEEP RANGE: 4.4 mc to 4.4 kmc in 7 steps. Continuous control between steps
RF SWEEP RATE OF CHANGE: 32 mc/sec to 320 kmc sec in 9 steps
SWEEP TIME: .0139 sec to 139 sec for full band sweep; determined by sweep range
and rate
POWER OUTPUT: Adjustable; 0 to at least 10 mw into matched load (swr - 1.25)
POWER VARIATION: With leveler operating: less than +l. 25 db over entire frequency
range. With leveler off: less than +l. 5 db over the entire fre-
quency range
RESIDUAL FM: Less than 200 kc peak
SPURIOUS SIGNALS : At least 30 db below cw output
MAXIMUM SWR: 2 or less
SWEEP MODE: Recurrent; externally triggered (20v positive with better than 3v/usec
rate of rise); manually triggered. RF Frequency sweep is linear
with respect to time and is downward from frequency dial setting
SWEEP OUTPUT: Approximately +25v peak sawtooth provided concurrently with swept
rf output for recorder and oscilloscope sweep. Source impedance
10K ohms and 20 pf in parallel
SWEEP WIDTH: Accuracy: *lo% for full band sweep. +25% -15% or *3 mc, which-
ever is greater for other calibrated sweep widths
Linearity: The half-voltage point of the SWEEP OUTPUT occurs
with 5% of mid-frequency
FREQUENCY DIAL ACCURACY: +l%
RESIDUAL AM: Greater than 40 db below carrier amplitude
MODULATION: Internal AM: Square-wave modulation continuously adjustable from
400 to 1200 cps. Peak rf output power is within 1 db of the cw level
External AM: Direct coupled dc to 300 kc/sec; -20 volts or more
reduces rf output level from rated cw output to zero. Input imped-
ance: 750K ohms and approximately 25 pf in parallel
External FM: Approximately 150 volts peak-to-peak required to
modulate full frequency range. 10 cps to 60 cps. Frequency devia-
tion and modulating voltage must be decreased with modulating
frequencies higher than 60 cps. Input impedance: 43K ohms and
approximately 100 pf in parallel; ac coupled
External Pulse: +10 volts or greater pulse required;5 millisecond
maximum pulse length. Peak rf pulse level within 1 db of cw level.
Pulse rise and decay times less than 1 usec. Input impedance:
lOOK ohms and approximately 45 pf in parallel; ac coupled
POWER 115/230 volts *lo%, 50 to 60 cps,approximately 540 watts
DIMENSIONS: Cabinet Mount: 20-9/16 in. wide, 12-3/4 in. high, 18 in. deep
Rack Mount: 17-5/8 in. wide, 10-1/8 in. high, 16-5/8 in. deep
OUTPUT CONNECTOR: X-Band Cover Flange (UG- 135/U)
WEIGHT: Cabinet Mount: Net 105 lbs, shipping 134 lbs
Rack Mount: Net 105 lbs, shipping 134 lbs
00034- 1 iii |
ACEC
