User`s guide

AutoTune™ for VX-P820/P920 Rev. C

4.2. VX-P820/P920 Test Setup

Figure 4-1. General Radio Test Setup

Cable Connections Cable Description

1 VX-P820/P920 Antenna port to R2670 RF IN/OUT port Coaxial BNC Cable

2 PC COM port OR USB to Serial Adapter to VX-P820/P920

Accessory Port

Vertex Standard Part Number

CT-109 and (optional) USB to

Serial adapter.

3 PC COM port OR USB to Serial Adapter to R2670 RS-232

Port

See APPENDIX B.

Table 4-1. Radio Test Setup Connections.

Note: For Cable 2 in Table 4-1, the Accessory Port connector must be configured as

described in Figure 4-1, with the cable wire leading to the PC pointing in the same

direction as the radio antenna connector. Incorrect orientation of Cable 2 will result in no

radio power-up or radio communication failure.