Holland Electronics ST-5120 - Manual (Page 7)

Operation
1. Press the

button to turn on meter. The meter will start up with the model number
and serial number, then automatically enter into the Video/Audio carrier measure mode.
2. System Setting: The ST5120 offers the options of measuring either USA CATV or
UHF/UHF channels. Press the SYS key to select the menu. Use the  key to select
either CATV or VHF/UHF mode. Use the  key to select either dBmV or dBuv
measurement units. Once set; press the SYS key again to exit and store the setting
values as the default.
 
3. Video, Audio and V-A differential measurement in Channel Mode: Press the CH
key to toggle between Video (CHV) , Audio (CHA), or V-A differential (V-A)
modes.
Use the 
keys to select the desired channel.
CATV dBmV
VHF/UHF dBuv
Press  to select
Between CATV and
VHF/UHF
Press  to select
Between dBmv and
dBuv
134 CHV 50.7 dBmv
853.25 MHz
134 CHA 32.9 dBmV
857.75 MHz
134 CH 17.8 dBmV
V-A