Atec Keithley-2820 - Manual (Page 8)

www.keithley.com
1.888.KEITHLEY
(U.S. only)
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2820 RF Vector Signal Analyzer
400MHz to 4GHz or 6GHz
Generator output
FrequenCy rAnge 1 : 400–2500MHz.
Sweep SpAn 2 : 0–2100MHz.
Sweep pointS: 1 to 501.
dwell Setting: 1ms to 1s in 1ms increments.
AMplitude: Fixed: –18dBm ±5.0dB (typical).
NoTES
1. Over range operation provided: 325MHz to 2.7GHz. Performance below 400MHz and above 2.5GHz
is not specified.
2. Over range operation provided: Maximum span: 2.375GHz. Performance below 400MHz and above 2.5GHz
is not specified.
Measurement Speed characteristics
GENERaL PURPoSE MoDE
SpeCtruM or zero SpAn 1 : 19ms.
ACpr 2 : 9.5ms.
acPR/acLR FUNcTIoN 3
Center, upper And lower Adj, upper And lower Alt: 9.5ms.
Center ChAnnel only (measurement of Adj and Alt off): 6.0ms.
cHaNNEL PowER LIST FUNcTIoN 4
Single FrequenCy: 0.9ms per point.
FrequenCy Step Size
≤1Mhz: 1.66ms per point.
MAxiMuM reAding rAte (minimum step width) 5 : 100µs per point.
GSM-EDGE PERSoNaLITY (GSM and GPRS Measurements) 6
phASe error, ChAnnel power And tiMe MASk: 24.0ms.
phASe error And ChAnnel power Free run trigger: 16.5ms (6.33ms/burst
7 ).
phASe error And ChAnnel power Video trigger: 16.5ms (4.73ms/burst 7 ).
orFS due to ModulAtion or SwitChing: 23.5ms.
GSM-EDGE PERSoNaLITY (EDGE Measurements) 8
eVM, ChAnnel power And tiMe MASk: 26.3ms.
eVM And ChAnnel power: 20.8ms (6.40ms/burst
9 ).
orFS due to ModulAtion or SwitChing: 24.9ms.
cDMa PERSoNaLITY (cdma2000 Measurements)
deModulAtion MeASureMent 10 : 50.5ms.
ACpr: 60.7ms 11 (230ms 12 ).
SpeCtruM eMiSSionS MASk: 125.2ms.
oCCupied bAndwidth: 51.9ms.
wcDMa PERSoNaLITY
deModulAtion MeASureMent 13 : 60.5ms.
AClr: 9.33ms 14 (208.1ms 15 ).
SpeCtruM eMiSSionS MASk: 129.14ms.
oCCupied bAndwidth: 45.14ms.
wLaN PERSoNaLITY 16
802.11a: 18ms
802.11b: 38ms.
802.11j: 18ms.
802.11n 20Mhz: 18ms.
802.11n 40Mhz: 18ms.
MAxiMuM diSplAy reFreSh rAte For A CoMplete updAte oF A 640×480 pixel VgA
SCreen, internAl diSplAy: 30 sweeps/s (33ms/sweep).
dAtA trAnSFer oVer lAn/tCp/ip: Up to 0.4MByte/s.
REMoTE TRacE DaTa TRaNSFER 17
lAn: 5.7ms.
uSb: 12.7ms.
gpib: 20ms.
TIME To SwITcH BETwEEN MEaSUREMENTS 18
within generAl purpoSe Mode: 10ms.
FroM SignAl AnAlySiS to generAl purpoSe Mode: 10ms.
FroM generAl purpoSe to SignAl AnAlySiS Mode: 10ms.
within gSM-edge perSonAlity: 10ms.
FroM CdMA or wCdMA perSonAlitieS, non-deModulAte to deModulAte: 11ms.
FroM CdMA or wCdMA perSonAlitieS, deModulAte to non-deModulAte: 1ms.
NoTES
1. Instrument preset, all settings auto coupled: 300kHz ≤ span ≤ 300MHz. In zero span, sweep time ≤5ms and
1MHz BW. Time is trigger to data available.
2. Fast mode on, noise correction off, range check off, randomize start off, 100µs sweep time, 4MHz BW,
brickwall, display off.
3. Fast mode on, noise correction off, range check off, randomize start off, 100µs sweep time, 3.84MHz BW, RRC
filter, display off.
4. 101 point list, 400µs acquisition time, ≥1MHz BW, brickwall, noise correction off, fast mode on, range check
off, randomize start off, display off.
5. ≤50µs acquisition time, ≥1MHz BW, brickwall, noise correction off, fast mode on, range check off, randomize
start off, display off.
6. Single burst, no averaging, display off.
7. 100 averages, over range check and randomized time off.
8. Single burst, no averaging, display off.
9. 100 averages, over range check and randomized time off.
10. Parameters measured: Rho, code domain power, RMS EVM, peak EVM, peak code domain error, frequency
error, IQ offset and total channel power, display off.
11. Fast mode on, noise correction off, 100µs sweep, display off.
12. To preset condition accuracy, display off.
13. Parameters measured: Code domain power, RMS EVM, peak EVM, peak code domain error, frequency error, IQ
offset and total channel power, display off.
14. Fast mode on, noise correction off, 100µs sweep, display off.
15. To preset condition accuracy, display off.
16. Display off, plots turned off, mean of 100 iterations, no frequency change, time includes GPIB transfer time
(802.11b waveform with 504 chips).
17. Zero span, sweep time 100µs, binary data transfer, 501 data points, display off.
18. Display off, MEAS1;INIT;IMM;*WAI;;MEAS2;INIT;IMM;*OPC
1 10 100 1000 10,000 100,000 1,000,000 10,000,000
100
10
1
0.1
0.01
0.001
0.0001
0.00001
0.000001
Resolution Bandwidth (Hz)
Trace Update Rate vs. Measurement RBM
(Spectrum Analysis Mode)
Tr
ace Update Rate
(G
H
z/
s)