WISI OH 38 Compact Headend Instruction Manual
- June 5, 2024
- WISI
Table of Contents
WISI OH 38 Compact Headend
Operating instructions
- Modulation of 2 A/V signals to 2 analog TV channels
- Multi standard operation
- Stereo capable vestigial sideband modulator, independently adjustable in 250 kHz steps
- Interface for audio/video with BNC/Cinch
- Output frequency range 45–862 MHz
Headend OH 41 (OK 41 A) (Accessory)
Note: After programming disconnect the handset.
Stand by
Supply voltage connected to basic unit and wait till mode “Initialising the
modules” has finished. Plug the handset into the socket on the basic unit.
Press any key to call the module menu or System menu.
Module menu
Modul menu
▲▼ Tasten / keys — Select module 1…14
▶ Taste / keys — Move to parameter sub-menu
◀ Taste / keys — Back
Parameter menu
▲▼ Tasten / keys — Select parameter
▶ Taste / keys — Move to parameter sub-menu
◀ Taste / keys — Back
Parameter sub-menu
◀▶ Tasten / keys — Select the digit to be changed Cursor blinks below the
digit, e.g. 1894
If the permissible range is exceeded, the unit returns to the parameter menu
▲▼ Tasten / keys — Change the value, e.g. change 1894 to 1834
Saving data
Data are saved automatically after leaving the parameter, or 60 seconds after
the last entry.
Instructions
Update
OH 38 module update
-
no A controlled software update of the selected
-
yes module can be done by selecting “yes”.
-
Insert USB Stick Connect a USB-stick with the OH 38 software to the USB-connector.
-
V159.bin It displays the software with the highest version
number first. Other versions can be selected with the “Up” and “Down” keys. The versions are sorted in ascending order. The selection of the version can be done by the “right”-key. -
Start Update: Yes Now select Start Update ‚yes‘, and confirm it V1_59.bin with the “right”-key. The update will be started. Selecting “no” skips the update of the module software.
Note: If in the Update files extention updates are available they will be also displayed. The update procedure is the same as described in the module update.
Specifications
Input
- Video input impedance 75 Ω
- Video input level 1 Vss ± 0,4 V
- Video input bandwidth 20 Hz – 5 MHz
- Audio input impedance 600 Ω / 15 kΩ
- Audio input level (for nom. deviation) -4 dBm / 1 kHz
- Audio level range +6 dB … -6 dB
- Audio input bandwidth 40 – 15000 Hz
Output
- Output impedance 75 Ω
- Output frequency range 45 – 862 MHz
- Frequency steps 250 kHz
- Stability of output frequency ± 30 kHz
- Output channel bandwidth 7/8 MHz
- Output level (1dB steps) 90 – 105 dBμV
- TV-standards B/G, D/K, I, L, M
- Audio format Mono, Stereo, Dual
- Group delay (-0,5….4,43 MHz) < 80 ns
- S/N video (CCIR-rec. 567-1) > 57 dB
- S/N audio (color test pattern) > 50 dB
- Stability of output level ± 1,5 dB
- Spurious
- inside TV-channels > 55 dB
- outside a TV-channel > 55 dB
General specifications
- Dimensions 220 (253 *) x 105 x 29,5 mm
- Connectors * with F-connector
- Video 2 x BNC
- Audio L/R 4 x Cinch
- RF-output 1 x F-connector
- Power Connector on board
- Control Connector on board
- Current consumption (without CAM module or LNB-supply) 0,80 A / 12,5 V
- Power consumption < 10 W
- Operating temperature range – 20 °C to + 55 °C
- Nominal temperature range + 5 °C to + 55 °C
Switching from normal mode to Macrovision mode
- Normal mode > Jumper X8 and X9 plug right side (see red marking)
- Macrovision mode > Jumper X8 and X9 plug left side (see green marking)
- Remark: In Macrovision mode the Video-AGC is deactivated!
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Straße 5–7
75223 Niefern-Oeschelbronn, Germany Tel.: +49 72 33-66-292, Fax: 66-320,
E-mail: [email protected], wisigroup.com
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