
Chapter  1  31
 Calibrating
Before You Start
Table 1-11 Recommended Adapters
Critical Specifications for Adapter Substitution 
Recommended 
HP/Agilent 
Model 
Use a
BNC (m) to BNC (m) 1250-0216 P,T
BNC tee (f,m,f) 1250-0781 A,T
Type-N (f) to APC 3.5 (f) 1250-1745 P,A,T
Type-N (f) to BNC (m) 1250-1477 P,T
Type-N (f) to BNC (m), 75 Ω (2 required for Option 1DQ)
(1 required for Option 1DP)
1250-1534 P,A,T
Type-N (m) to BNC (f) (4 required)  1250-1476 P,A,T
Type-N (m) to BNC (m) (2 required) 1250-1473 P,T
Type-N (m) to BNC (m), 75 Ω (Option 1DP) 1250-1533 P,A,T
Type-N (m) to Type-N (m) 1250-1472 P,T
Type-N (m) to Type-N (m) 1250-1475 P,A,T
Type-N (f) to Type-N (f), 75 Ω (Option 1DP) 1250-1529 P,A,T
Type-N (f), 75 Ω, to Type-N (m), 50 Ω (Option 1DP) 1250-0597 P,A,T
Type-N (m) to SMA (m)  1250-1636 P
50 to 75 Ω Minimum Loss 
Frequency Range: dc to 1.5 GHz 
Insertion Loss: 5.7 dB, nominal (Option 1DP)
 11852B P,A,T
Type N(f) to Type N(f) 1250-0777
Type N(f) to BNC(f), 75 ohm (Option 1DP only) 1250-1535
Type N (m) to APC 3.5 (f) (3 required) 1250-1744
APC 3.5 (f) to APC 3.5 (f)  1250-1749
Dual Banana to BNC (f) 1251-2277 P,A,T
Type N (m) to BNC (f) (2 required) 1250-0780
a. P = Performance Test, A = Adjustment, T = Troubleshooting