Wavetek 147 Spécifications télécharger pdf (Page 97)

100

101

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field

problem, but an artifact of the type of test point used and impedance

mismatches in the network.

If the video carriers at the forward test point are above +20dBmV, then use a

pad to drop the levels. (Typically this will be the case only when there are

direct connections to an amplifier output.)

Fig. 4-7 SDA-5000 Connection in a Network with One Bi-directional Test

Point

• Dual cable networks: Dual cable networks are a second type of

forward/reverse network. Although this is a less common configuration, it

can also be swept in both directions.

Two separate pieces of coax are run to all points in the network. One is used

for forward path signals, the other for reverse path signals. This type of

network is more expensive to build, but it offers more return bandwidth.

Two cables can be used to sweep this type of system in both directions with

the same setup. A sample setup is shown in Fig. 4-9.

1 2 ... 92 93 94 95 96 97 98 99 100 101 102 ... 409 410

Commentaires sur ces manuels

Pas de commentaire

Wavetek 147 Spécifications Page 97

Commentaires sur ces manuels

Produits connexes et manuels pour Mesure, test et contrôle Wavetek 147