| Parameters |
Model 2424 |
Model 2424A |
| Frequency |
| Range |
10 KHz to 1040 MHz |
10 KHz to 600 MHZ |
| Resolution |
10 Hz ( < 128 MHz), 100 Hz (>128 MHz) |
| Accuracy |
+5E-8 ex-factory, 20°C |
| Stability |
Standard : +1E-6 (0 to 55°C); +2E-7 per month
|
Option 01 : +2E-7(0 to + 40°C); +1E-7per month
|
| RF Output |
| Range |
-137dBm to + 13dBm (0.03 µV to 1 V p.d)
|
| Resolution |
0.1 dB |
| Units |
dBm, dBµV, mV, µV, pd, emf. |
| Accuracy |
(Carrier level : +1dBm at +13 dBm > -127 dBm)
|
| +1.5dB (<500MHz) |
| +2.5 dB (> 500 MHz) |
| Source impedance |
50 ohms
|
| VSWR |
<1.5:1 (<-3 dBm) |
| Reverse power protection |
50 W Max. DC-1040MHz(User reset) |
| Trip level |
200 mW typical |
| Spectral Purity |
| Harmonics |
< - 25 dBc (carrier <+7 dBm)
< - 30 dBc (typical)
|
| Non-Harmonics |
< - 60 dBc |
| Residual FM |
<50 Hz r.m.s. at 1040 MHz (CCITT P53A) improving 6dB/octave to <1.25 Hz r.m.s. at 16 MHz, |
| <6Hz r.m.s. below 16 MHz |
| Residual AM |
<0.1 % (50 Hz to 15kHz bandwidth) |
| SSB noise |
Typical characteristics shown for carrier frequencies of 80 & 800 MHz |
| Noise Floor |
<-130 dBc |
| AM on 20kHz FM |
0.5% (50Hz to 15 kHz Band width) 1 kHz rate. |
| FM on 30% AM |
<200 Hz (50 Hz to 15 kHz band width),1 kHz rate |
| RF Leakage |
<0.5µV (induced in 2 turn 25 mm loop 25 mm away) |
| Amplitude Modulation |
| Depth |
0 to 99.9%(< 500 MHz <+7 dBm) |
| |
0 to 50% (>500MHz <+7 dBm) |
| Resolution |
0.1 % |
| Accuracy |
+ 5 % of reading (<90 % depth) |
| Bandwidth (+ 1 dB) |
d.c./10 Hz to 25 KHz |
| Distortion |
< 2% at 50% depth, 1 KHz rate. |
| Frequency Modulation |
| Max. Peak Deviation |
250 KHz (10 KHz to <16 MHz) |
| |
62.5 KHz (16 MHz to <32 MHz) |
| |
125 KHz (32 MHz to <64 MHz) |
| |
250 KHz (64 MHz to < 128 MHz) |
| |
500 KHz (128 MHz to <256 MHz) |
| |
1000 KHz (256 MHz to <512 MHz) |
| |
1000 MHz (> 512 MHz) |
| Resolution |
carrier frequency >64MHz |
| |
10Hz (< 5% Max. peak) |
| |
100Hz (>5% Max. peak) |
| Carier frequency |
<64MHz |
| |
10Hz (10% Max peak deviation) |
| |
100Hz (>10% Max peak deviation) |
| Accuracy |
+5% of reading |
| Bandwidth (+ 1 dB) |
d.c./50 Hz to 25 KHz |
| Distortion (THD) |
<1 % < 10 KHz deviation 1 KHz rate |
| Phase Modulation |
| Deviaton |
0 to 3 rads. |
| Resolution |
0.01 rad. |
| Accuracy |
+ 20% of reading excluding residual PM |
| Bandwidth (+ 1 dB) |
50 Hz to 10 KHz |
| Distortion (THD) |
< 2% at 1KHz rate, 300 Hz to 3 KHz band width. |
| Internal Modulation Sources |
| Synthesizer range |
10 Hz to 9.999 KHz |
| Resolution |
0.1 Hz <1 KHz, 1 Hz > 1 KHz |
| Accuracy |
+2E-5 |
| Distortion |
<2% <5KHz |
| Output (Synthesized) |
0 to 1 V r.m.s. (emf, 50 ohms) in 1 mV steps |
| Single spot frequency |
1 KHz |
| Accuracy |
+2E-5 |
| Distortion |
<0.2% |
| Simultaneous tones |
Ratio fixed to variable tone 5 : 1 |
| Internal 1 KHz output |
1 V r.m.s. (emf, 50 Ohms) |
| Sequential Tones |
| System covered |
CCIR, EEA, ZVEI-1, ZVEI-2. EIA, NATEL |
| External Modulation |
| Impedance |
50 Ohms |
| Level |
1 V r.m.s. for f.s.d. (front panel control adjustment) |
| Indication |
Analogue meter (scaled 0 to I with CAL marker) |
| Simultaneous tones |
The external input may be mixed with the internal synthesizese Ratio of external tone to internal tone 5 : 1 |
| Pulse Modulation (Option 02) |
| Frequency range |
25 MHz to 1040 MHz (2424) |
25 MHz to 600 MHz (2424A) |
| Carrier on/off ratio |
60 dB at 70 MHz |
| |
45 dB at 500 MHz |
| |
40 dB at 800 MHz |
| Pulse rise time |
2 µs |
| Pulse fall time |
1 µs |
| Minimum Pulse width |
4 µs |
| Modulator lnsertion loss |
<4.5 dB |
| TTL Logic Drive |
TTL high = (Carrier ON) Max. 5 V peak |
| |
(Max 5 V pk) TTL low = (Carrier OFF) |
| Carrier Leakage |
<0.5µ V (induced in 2 turn 25 mm loop 25 mm away carrier level < - 3 dBm)
Sinad |
| Input Frequency |
1 KHz |
| lnput Level |
30 mV to 3 V r.m.s. |
| Indication |
analogue meter, scaled range 30 dB to 6 dB |
| Impedance |
> 7/5 K ohms |
| Bandwidth (+ 3dB) |
60 Hz to 6 KHz |
| Sweep |
| Functions |
Carrier frequency, Carrier level, Modulation frequency, Modulation level. |
| Range (Start, Stop) |
Any within setting range |
| Total sweep time |
2 seconds to 200 seconds. |
| General |
| Programmability |
GPIB (IEEE 488) |
| Memory |
100 complete front panel set-ups, Last |
| |
(Non-Voletile) front panel set-up, IEEE 488 address |
| Internal crystal reference |
TCXO, 10MHz. |
| Internal reference output |
3 V pk. - pk. (emf 50 ohms) |
| External reference freq. |
10MHz |
| External reference level |
1 V r.m.s. |
| Voltage Input |
220/240 V + 10% AC |
| Frequency |
45 Hz - 440 Hz |
| Ext. DC Input |
11.5 to 15 V |
| Power Consumption |
30 VA max. |
| Operating Temperature |
0 to 55°C |
| Humidity |
95% RH at 40°C non condensing |
| Dimensions (approx.) |
Height (Incl. feet) 145 mm |
| |
Width 330 mm |
| |
Depth 405mm |
| Weight (approx.) |
8.6 kg |
| Accessories Standard |
N to BNC adaptor |
| |
BNC to BNC cable |
| |
Mains lead |
| |
Instruction/Service Manual |
| |
DC Power Cord |
| |
PCB Extractor |
| |
|
