MODEL 200T4G8
M1, M3
200 WATTS CW
4 - 8 GHz
The Model 200T4G8 is a self contained, forced air cooled, broadband traveling wave tube (TWT)
microwave amplifier designed for applications where instantaneous bandwidth and high gain are
required. A reliable 250 watt TWT provides a conservative 200 watts minimum at the amplifier output
connector. Stated power specifications are at the fundamental frequency.
The amplifier's front panel digital display shows forward and reflected output plus extensive system
status information accessed through a series of menus via soft keys. Status indicators include power
on, warm-up, standby, operate, faults, excess reflected power warning and remote. Standard features
include a built-in IEEE-488 (GPIB) interface, 0dBm input, VSWR protection, gain control, RF output
sample port, plus monitoring of TWT helix current, cathode voltage, collector voltage, heater current,
heater voltage, baseplate temperature and cabinet temperature.
Modular design of the power supply and RF components allow for easy access and repair. Use of a
switching mode power supply results in significant weight reduction.
Housed in a stylish contemporary cabinet, this unit is designed for benchtop use but can be removed
from cabinet for rack mounting. The Model 200T4G8 provides readily available RF power for a
variety of applications in Test and Measurement, (including EMC RF susceptibility testing), Industrial
and University Research and Development, and Service applications.
See Model Configuration for package alternatives.
200T4G8 TYPICAL POWER OUTPUT
350
CW
300
250
WATTS
200
LINEAR @ 1dB COMPRESSION
150
100
50
3
4
5
6
7
FREQUENCY (GHz)
8
9
REV081099
SPECIFICATIONS
M o d el 200T4G8
POWER (fundamental), CW, @ OUTPUT CONNECTOR
Nominal........................................ 2 2 w t s
6 at
Minimum ....................................... 2 0 w t s
0 at
L n a @ 1dB Compression ............................ 100 watts minimum
ier
FLATNESS (at rated power) ............................. ±6 dB maximum at rated power
FREQUENCY RESPONSE.............................. 4 8 G z i s a t n o s y
- H ntnaeul
INPUT FOR RATED OUTPUT ........................... 10 milliwatt maximum
.
GAIN (at maximum setting) ............................. 53 dB minimum
GAIN ADJUSTMENT (continuous range) .................... 35 dB minimum
INPUT IMPEDANCE ................................. 5 o m , VSWR 2.0:1 maximum
0 hs
OUTPUT IMPEDANCE................................ 5 o m , V W 2 5 1 t p c l
0 hs SR .: yia
MISMATCH TOLERANCE ............................. O t u p w r f l b c p o e t o a r f e t d
u p t o e odak rtcin t elce
pwr eceig 4 wts Wl oeae wtot
oe xedn 0 at. il prt ihu
dmg o oclainwt aymgiuead
aae r silto ih n antd n
p a eo s u c a d l a i p d n e M y o c l a e
hs f ore n od meac. a silt
wt usile oe det culn t ipt
ih nhedd pn u o opig o nu.
Sol ntb tse wt cnetrof
hud o e etd ih onco f.
MODULATION CAPABILITY ........................... W l f i h u l r p o u e A , F , o p l e
il atfly erdc M M r u s
m d l t o a p a i g o t e i p t s g a . AM
ouain pern n h nu inl
p a e v l p p w rl m t dt s e i i dp w r
e k neoe oe iie o pcfe oe.
NOISE POWER DENSITY.............................. M n s 6 dBm/Hz (maximum)
iu 4
Mns7 dmH (yia)
iu 0 B/z tpcl
HARMONIC DISTORTION ............................. M n s 4 dBc maximum, Minus 5.2 d c t p c l
iu
B yia
PRIMARY POWER................................... 190-260 VAC
5/0H snl pae
06 z ige hs
2.0 KVA maximum
CONNECTORS
RF input ......................................
RF output .....................................
RF output sample port .............................
GPIB ........................................
I t r o k ......................................
nelc
Tp Nfml o ra pnl
ye eae n er ae
Tp Nfml o ra pnl
ye eae n er ae
Tp Nfml o ra pnl
ye eae n er ae
I E ( )o r a p n l
EE f n er ae
D - 5( )o r a p n l
B1 f n er ae
COOLING ........................................ F r e a r ( e f c n a n d f n ) a r e t y a d e i
o c d i sl otie as, i nr n xt
i ra.
n er
Model Number
200T4G8
200T4G8M1
200T4G8M3
MODEL CONFIGURATIONS
Dsrpin
ecito
With removable enclosure
Sipdwtota otrcbnt
hpe ihu n ue aie
Ecouermvdfrrc mutn –sie adfothnls
nlsr eoe o ak onig lds n rn ade
isald
ntle
Weight
5 k ( 2 l)
4 g 10 b
4 k ( 0l)
1 g 9 b
4 k ( 5l)
3 g 9 b
Sz ( x H x D
ie W
)
5. x2. x6. c
03 97 86 m
1. x1. x2 i
98 17 7 n
4. x2. x6. c
83 67 86 m
1. x1. x2 i
90 05 7 n
4. x2. x6. c
83 67 86 m
1. x1. x2 i
90 05 7 n
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