K3S

S-Band Compact Klystron High Power Amplifier
for Satellite,Troposcatter, Terrestrial Gapfiller and Test Applications
S- Band
The Compact
High Power
Amplifier
Integrated Protection Switching
Assures high reliability in a compact design based
on field proven performance. Features Power Saver
and Power Tracker, optimizing K-HPA efficiency to
meet your operating condition.
Redundant switch controller eliminates the cost of
external controllers. System status is shown on the
display and switch controls are implemented
locally on the front panel touch-pad, or remotely
via the digital serial interface.
New Features and Options
Scopescreen provides a graphical log display. The
Ethernet Option provides higher speed connections,
can update and coordinate all clock settings, and
enables a snapshot feature where user can create
a file containing all settings, alarms and faults at a
single point in time.
Easy Maintenance, Easy Handling
All areas of the amplifier are easily accessible and
there are no large harnesses to get in the way.
Separate RF and Power Supply drawers slide out
from a standard-size, non-magnetic rack.
Worldwide Support
Useful Displays
Large, high quality, color, graphical display has a
wide viewing angle and asharp appearance. All
important functions are clearly displayed, and an
event log is included.
Backed by over three decades of satellite
communications experience, and CPI's worldwide
24-hour customer support network that includes
sixteen regional factory service centers.
811 Hansen Way
P.O. Box 51625, Palo Alto, CA 94303
tel: +1 (650) 846-3803
fax: +1 (650) 424-1744
e-mail: [email protected]
www.cpii.com/satcom
Compact Klystron High Power Amplifier
Technology Reuse At its Best
S-Band
S-Band CKPA —
provides up to
2.5 kW of power
in a dual drawer
package
S -B a n d
SPECIFICATIONS, Model K3S S-Band CKPA
Electrical
Frequency Range
OPTIONS:
• Motorized Channel
Selector:
(<10 seconds typ.)
• Remote Control
Panel
• Linearizer
• Ethernet Interface
• Power Combined
Option
Various bands within the 1.7 - 2.23 GHz
frequency range; also 2.6 - 2.7 GHz fixed and
2.0 - 2.5 GHz (wide frequency range option)
Klystron Power Output
2.5 kW min. (64.0 dBm)
Amplifier Output
at flange1
2.0 kW min. (63.0 dBm),
Bandwidth
8 MHz (P1dB)
Power Adjustability
0 to -20 dB of output with ±0.1 dB
typical resolution
Gain at Rated Power
74 dB min.
Gain Stability vs. Time
±0.25 dB/24 hr. max. at constant drive
and temperature
Gain Stability vs. Temp.
1 dB max. from 20° to 40°C; ±2.5 dB max
from 0° to 50°C (at constant drive)
Gain Slope
(at rated power)
0.2 dB/MHz max. over (Fo±2.5 MHz)
(0.5 dB/MHz max. wide freq. range option)
Gain Variation
(at rated power)
0.5 dB pk-pk max. over (Fo±2.5 MHz),
where Fo is the center freq. of the
selected channel
Input VSWR
1.25:1 max.
(1.35:1 max. with wide freq. range option)
Output VSWR
1.35:1 max.
(1.5:1 max. with wide freq. range option)
Load VSWR
2.0:1 max. for full spec. compliance;
any value for operation without damage
Residual AM2
-50 dBc maximum, 20 to 400 Hz
-60 dBc maximum, 400 Hz to 2 kHz
-80 dBc maximum, 2 kHz to 500 kHz
AM/PM Conversion
(at rated power)
3°/dB maximum
Harmonic Output1
-80 dBc
Noise and Spurious
(at rated gain)
-145 dBW/4 kHz, receive band
-60 dBW/4 kHz, in passband
-110 dBW/MHz, outside passband
(specification N/A with wide
freq. range option)
Phase Noise3
Exceeds requirements of IESS-308/309 by
10 dB at 10 dB backoff.
Intermodulation
-29 dBc with two equal carriers at total output
7 dB below rated single-carrier output
Group Delay
3.0 ns/MHz linear max.
2.0 ns/MHz2 parabolic max.
4.0 ns pk-pk ripple max.
(the above group delay specs are typical
for the wide freq. range option)
Primary Power3
All ratings are ± 10%,
47-63 Hz 3-phase with
neutral and ground:
208 VAC
380 to 415 VAC
200 VAC (without neutral)
Power Consumption4
10 kW max.
1External harmonic filter may be removed as an option. Add 0.25 dB to amplifier output for units ordered
without harmonic filter, and raise harmonic output to -30 dBc.
2Prime power AC line imbalance not to exceed 3%. Excess imbalance may cause an increase in residual
RF noise (AM, FM and PM). Phase noise increase is typically 2.5 dB / % imbalance.
Certificate Number: 30515
Please check CPI’s web site to ensure most current data sheet.
For more detailed information, please refer to the corresponding CPI Technical Description.
Note: Specifications may change without notice as a result of additional data or product refinement.
Please contact CPI before using this information for system design.
MKT 147, ISSUE 8
02/08
PDF
Mechanical
RF Input Connection
Type N female
RF Output Connection
CPR-430 G flange
(CPR-340 G flange for
2.6 - 2.7 GHz)
RF Power Monitors
Type N female
Dimension (W x H x D without waveguide, fans and handles)
RF Drawer
19 x 24.5 x 33 in.
(483 x 623 x 838 mm)
PS Drawer
19 x 8.75 x 24 in.
(483 x 223 x 610 mm)
Weight
RF Drawer
PS Drawer
280 lbs w/klystron (127 kg)
100 lbs (45.4 kg)
Cooling
Forced air with integral blower and
fans; separate klystron collector
cooling path
Air Flow Rate, Klystron
450 cfm min., at sea level
(300 cfm at 10,000 feet)
External Ducts Backpressure
0.5 inch water gauge
total, maximum
Klystron Heat Loss
8000 W max.
Heat Loss in Room
(cabinet less Klystron)
2000 W max.
Acoustic Noise
68 dBA nominal, measured
3 ft. from front of equipment
(quieter with variable fan speed
control option)
Environmental
Ambient Temperature
-10° to +50° operating;
-40° to +80° non-operating
Relative Humidity
95%, non-condensing
Altitude
operating:
non-operating:
Shock and Vibration
5,000 ft. (1525 m) with standard
adiabatic temp derating of
2.5°C/1000 ft. or 8.125°C/km
40,000 ft. (12,000 m)
As normally encountered
in satellite earth stations
and shipping
Klystron Magnet Susceptibility: Install RF Drawer at
least 12 inches from ferromagnetic structures (i.e. power
transformers, cold rolled steel racks or structural beams.
Failure to comply with this requirement may result in
degraded RF performance and/or product failures.
3AC current harmonic content: less than 20%, primarily fifth and seventh harmonics.
Harmonics must be considered when choosing UPS sources.
4Lower power consumption can be achieved if power saver (included as standard)
is employed when operating below rated output power.