The Drake Model CS-7 Coax Switch manual provides detailed instructions for setting up and operating the device, which allows for the remote switching of up to five coax-fed antennas and radios through a single main coax feed line. It also includes troubleshooting tips, such as ensuring proper grounding and using silicone sealer on terminal strips to prevent issues with connections.
Manual Overview
The Drake Model CS-7 Coax Switch is designed to manage up to five coax-fed antennas and radios through a single main coax feed line, minimizing coax usage and providing grounding for unused inputs. The unit operates within a frequency range up to 150 MHz and supports a maximum input power of 2000 Watts PEP. Installation involves mounting the antenna switch using a universal bracket, connecting it to the console with an 8-conductor cable, and ensuring proper grounding. The switch’s “RAIN-HAT” construction ensures functionality in adverse weather. For operation, the correct supply voltage must be selected, and the unit is energized by depressing the ON-OFF button, which lights the “ON” lamp. Antennas are selected via a remote switch, with the “STANDBY” light indicating the motor-driven switches are active. Proper grounding is crucial for effective operation, especially if the switch is mounted on a non-conductive structure. Calibration and adjustments are not detailed, but ensuring correct installation and grounding is emphasized for optimal performance.
Quick Issues Covered
- Diagnose power-up failures with voltage selection and fuse checks.
- Calibrate antenna switch using remote switch and standby indicator.
- Trace circuits using detailed console and antenna switch schematics.
Overview
The Drake Model CS-7 Coax Switch is a versatile accessory designed to remotely switch up to five coax-fed antennas via a single main coax feed line. It also allows for the switching of up to five radios, including transmitters, receivers, or transceivers, to the main coax feed line. This setup minimizes the amount of coax needed for a multi-antenna installation and provides grounding for unused inputs. The CS-7 is housed in an enclosure styled to match the Drake 7-line equipment.
Specifications
- Maximum Input Power 2000 Watts PEP
- Frequency Range Up to 30 MHz, Insertion of Switch Changes VSWR no more than 1.05:1. From 30 MHz to 150 MHz, Insertion Changes VSWR no more than 1.5:1 (Both Switches).
- Operating Temperature Range -40°F. to +150°F.
- Supply Voltage 120 VAC or 240 VAC Selectable.
- Dimensions & Weight Console 5-1/4” high X 6-138/16” wide, 7-1/16” cabinet depth (13.3 em H x 17.8 em W x 17.9 cm D). Weight = 4.33 lb. (1.96 kg)
- Remote Antenna Switch 7-1/8” high x 5-7/8” wide x 4-3/8” depth (18.1 em H x 15.0 cm W x 11.4 em D). 8-3/16” center to center mounting Weight = 5 lbs. (2.27 kg)
Controls & Indicators
Refer to the PDF for details.
Installation / Setup
Carefully remove the unit from the shipping carton and check for any damage. If damage is found, notify the transportation company immediately and keep the shipping carton and packing material for examination. The universal mounting bracket on the antenna switch allows easy mounting to a tower or flat surface. After mounting, connect terminals #1 through #8 on the antenna switch to the corresponding terminals on the console using an 8-conductor cable. Use the cable clamp to relieve strain on the terminal strip connections. It is recommended to coat the terminal strips with silicone sealer or RTV after connecting the cable. Grounding is necessary; connect a strap from the ground lug on the antenna switch to a good earth ground or the tower. Connect antennas to coax receptacles on the antenna switch using 50-ohm coaxial cable and PL-259 connectors. Connect the single transmission line to the coax receptacle labeled “C” on the rear panel of the console. Connect receivers, transmitters, or transceivers using 50-ohm coaxial cable and PL-259 connectors to the other coax receptacles.
Operation
To operate the Drake Model CS-7 Coax Switch, first determine your line voltage and select the appropriate voltage range on the rear panel, either 120 VAC or 220 VAC/60 Hz. Ensure to change fuse ratings if the voltage range is altered. When the ON-OFF button is pressed, the “ON” lamp will light up, indicating the unit is energized. The remote switch controls which antenna is connected to the transmission line. To switch antennas, rotate the remote switch to the desired number or description. The standby indicator will light up, showing the motor-driven switches are in motion. Once the “STANDBY” light goes out, the selected antenna is connected to the transmission line.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
The manual includes the following safety warnings and precautions:
1. When leaving the station, return the ANTENNA SWITCH to GND. After the “STANDBY” light goes out, depress the power switch and note the “ON” lamp goes out.
2. CAUTION: BE SURE TRANSMITTER IS IN THE “OFF-THE-AIR” CONDITION WHEN STANDBY LIGHT IS LIT CONTINUOUSLY, INDICATING MOTOR DRIVEN SWITCHES ARE TURNING. DURING THIS INTERVAL THE TRANSMISSION LINE IS IMPROPERLY TERMINATED.
Download 2 Service manual (PDF – 2.0 MB)
Drake CS-7 Model 2 Service Manual PDF: A 2.0 MB guide for troubleshooting, calibrating, and servicing the CS-7 Model 2 equipment.
- Brand: Drake-cs-7-operation-service-manual
- Model: 2
- Type: Service manual
- File size: 2.0 MB
Overview
Brief overview of the product.
Specifications
- Key spec 1
- Key spec 2
Controls & Indicators
Control panel/button layout.
Installation / Setup
- Step 1…
- Step 2…
Operation
Basic usage, modes, cycles.
Troubleshooting & Error Codes
| Issue / Code | Fix |
|---|---|
| Example | How to fix… |
Safety & Warnings
- Important warning…
Downloads
Download 2 service manual (PDF)
Drake CS-7 Operation & Service Manual Overview
The Drake CS-7 is a versatile communication device designed for reliable signal transmission and reception in various professional and amateur radio applications. This model offers advanced features that ensure clear audio quality, stable operation, and ease of maintenance, making it an essential tool for radio enthusiasts and service technicians alike.
Main Features and Specifications
- Frequency range: 1.8 MHz to 30 MHz coverage
- Power output: Up to 100 watts
- Multi-mode operation: AM, FM, SSB, and CW
- Built-in automatic antenna tuner
- Digital frequency display with fine tuning control
- Robust metal chassis for durability
- Comprehensive service manual included for easy repairs
Basic Usage and Operation Tips
To operate the Drake CS-7, first ensure the device is properly connected to a suitable antenna and power source. Select the desired frequency using the tuning dial and mode selector. For optimal audio clarity, adjust the volume and squelch controls accordingly. When transmitting, monitor the output power meter to avoid overdriving the transmitter. Regularly calibrate the frequency display using the built-in calibration function to maintain accuracy.
Troubleshooting and Maintenance
Common issues such as audio distortion or weak transmission can often be resolved by checking antenna connections and verifying power supply stability. Refer to the service manual for step-by-step diagnostic procedures and circuit diagrams. Periodically clean the device’s exterior and ventilation openings to prevent dust buildup. Replace worn or damaged components promptly to ensure continued reliable performance.
Safety Reminder
Always disconnect the Drake CS-7 from the power source before performing any maintenance or repairs. Avoid operating the device in wet or damp environments to prevent electrical shock. Use only manufacturer-recommended replacement parts to maintain safety and compliance with regulatory standards.