Models
Directivity
(dB)
Accuracy➀
Input Z
(ohms)
Test Port
Connector
Physical
59 Series Comparison SWR Autotester
,
10 MHz to 18 GHz
59A50 36
0.01–8 GHz:
0.016 ±0.06ρ
2
➁➂
8–18 GHz:
0.016
±0.1ρ
2
50 GPC–7
Dimensions:
7.6 x 5.1 x 2.8 cm
(3 x 2 x 1
1
⁄
8
in.)
plus connectors
Weight:
340 g (12 oz)
63 Series SWR Autotesters, 10 MHz to 4 GHz
63A50
40➃
0.01 ±0.06ρ
2
50
GPC7
Dimensions:
6.7 x 5.1 x 2.54 cm
(2
5
⁄
8
x 2 x 1 in.)
plus connectors
Weight:
340 g (12 oz)
63N50 Type N Male
63NF50 Type N Female
97 Series SWR Autotesters
,
10 MHz to 18GHz
0.01–8 GHz 8–18 GHz
50
GPC–7
97A50 36
0.016 ±0.06ρ
2
0.016
±0.1ρ
2
Dimensions:
7.6 x 5.1 x 2.8 cm
(3 x 2 x 1
1
⁄
8
in.)
plus connectors
Weight:
340 g (12 oz)
97A50-1 40
0.01 ±0.06ρ
2
0.01
±0.1ρ
2
97S50
35
0.018 ±0.08ρ
2
0.018
±0.12ρ
2
WSMA Male
97SF50 WSMA Female
97S50-1
38
0.013 ±0.08ρ
2
0.013
±0.12ρ
2
WSMA Male
97SF50-1 WSMA Female
97N50
35
0.018 ±0.08ρ
2
0.018
±0.12ρ
2
Type N Male
97NF50 Type N Female
97N50-1
38
0.013 ±0.08ρ
2
0.013
±0.12ρ
2
Type N Male
97NF50-1 Type N Female
All Models
Insertion Loss (from input to test port): 6.5 dB nominal
Detector Output Polarity: Negative
Output Time Constant: 2 µs
Maximum Power Input: 0.5 watts (+27 dBm)
Input Connector: Type N Female
Detector Output Connector: BNC Female
➀ Where ρ is the reflection coefficient being measured. Accuracy includes the effects of test port reflections and directivity.
➁ When used with 28A50-1 Precision Termination. The effective directivity of the SWR Autotester can be increased to 60 dB by using the
Ripple Extraction return loss measurement technique with the 18A50 Air Line and 29A50-20 Offset Termination.
➂ See paragraph 4 for explanation of accuracy and other terms.
➃ 46 dB directivity available as Option 1. Option 1 accuracy: 0.005 ±0.06ρ
2
.
Table 1. SWR Autotester Performance Specifications
2 SWR OMM
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