Wattcher Series, RF Monitors
Monitor and Protect your RF Transmission Systems
3120A Series, Bird Wattcher Single Carrier RF Monitoring Systems are designed for the protection and monitoring of radio frequency transmission systems.
3170B Series, High-Speed Wattche RF Monitoring Systems automatically activate a variety of safety and equipment protection measures when it detects an abnormal antenna system load condition.
3126A | 300 W to 60 kW, Single Carrier RF Power Monitor
The 3126A Wattcher, RF Power Monitor/Alarm, is designed to protect and monitor your RF frequency transmission system by connecting the power meter to a Bird dual port thruline line section and two elements compatible with the RF coaxial line.
The elements are selected by the user to cover the desired power levels and frequency ranges. Purpose and Function Abnormal loading conditions cause the transmitter to quickly shutdown, a user selectable audible alarm to sound, and an alarm LED to flash. Remote access is available for resetting audible and visual alarms. Fail-safe or non fail-safe modes are user selectable and the reflected power trip level is adjustable.
| product specifications | |
|---|---|
| Item No | 3126A |
| Item Name | Single Carrier, Wattcher RF Monitor |
| Power Range | 300 W to 60 kW using Bird® Plug-in Elements |
| Frequency Range | 2 MHz to 1 GHz |
| Insertion VSWR | - |
| Accuracy | ± 5% of full scale |
| Meter Scales | (FWD) 5, 30, 60 kW; (RFL) 1.5, 3, 6 kW |
| Meter Sensitivity | 100 µA/3000 ohm |
| Alarms | Front Panel Buzzer and Red LED |
| Response Time | Activate Forward |
| Front Panel Controls | Reset push-button, reflected power limit display button, adjust alarm level recessed screw |
| Rear Panel Features | FWD/RFL DC signal inputs (BNC), DC power/remote reset connector, DPDT interlock relay connector, fail-safe/nonfail-safe selector, alarm buzzer disable, AC line voltage selector, safety fuses and IEC 320 AC receptacle |
| Inputs-Outputs | Cables |
| Includes | (2) 25 ft. DC Cables; If length other than 25 ft. is desired, order two BNC (M) cables |
| AC Power | 115/230 V, 50/60 Hz @ 0.125 A max. |
| DC Power | 9 to 16 V @ 1 A max. |
| Connectors | - |
| Finish | Gray Powder Coat |
| Dimensions (W x H x D) | 19 in x 5.2 in x 3.75 in (483 mm x 132 mm x 95 mm) |
| Weight | 5 lb (2.28 kg) |
| Required Products | Line Section: 1 5/8 in, 3 1/8 in, 4 1/16 in, 6 1/8 in |
| Calibration Cycle | - |
| Elements | Two from tables 1 5/8 B, 3 1/8 B, 4 1/16 B, or 6 1/8 B |
3127A | 100 W to 250 kW, Single Carrier RF Power Monitor
The 3127A Wattcher RF Power Monitor/Alarm is designed to protect and monitor your RF frequency transmission system by connecting the power meter to a Bird dual port thruline line section and two elements compatible with the RF coaxial line.
The elements are selected by the user to cover the desired power levels and frequency ranges. Purpose and Function Abnormal loading conditions cause the transmitter to quickly shutdown, a user selectable audible alarm to sound, and an alarm LED to flash. Remote access is available for resetting audible and visual alarms. Fail-safe or non fail-safe modes are user selectable and the reflected power trip level is adjustable.
| product specifications | |
|---|---|
| Item No | 3127A |
| Item Name | Single Carrier, Wattcher, RF Monitor |
| Power Range | 100 W to 250 kW using Bird® Plug-in Elements |
| Frequency Range | 2 MHz to 1 GHz |
| Insertion VSWR | - |
| Accuracy | ± 5% of full scale |
| Meter Scales | (FWD) 5, 10, 25 kW; (RFL) 1, 2.5, 5 kW |
| Meter Sensitivity | 100 µA/3000 ohm |
| Alarms | Front Panel Buzzer and Red LED |
| Response Time | Activate Forward |
| Front Panel Controls | Reset push-button, reflected power limit display button, adjust alarm level recessed screw |
| Rear Panel Features | FWD/RFL DC signal inputs (BNC), DC power/remote reset connector, DPDT interlock relay connector, fail-safe/nonfail-safe selector, alarm buzzer disable, AC line voltage selector, safety fuses and IEC 320 AC receptacle |
| Inputs-Outputs | Cables |
| Includes | (2) 25 ft. DC Cables; If length other than 25 ft. is desired, order two BNC (M) cables |
| AC Power | 115/230 V, 50/60 Hz @ 0.125 A max. |
| DC Power | 9 to 16 V @ 1 A max. |
| Connectors | - |
| Finish | Gray Powder Coat |
| Dimensions (W x H x D) | 19 in x 5.22 in x 3.75 in (483 mm x 133 mm x 95 mm) |
| Weight | 5 lb (2.28 kg) |
| Required Products | Line Section: 1 5/8 in, 3 1/8 in, 4 1/16 in, 6 1/8 in |
| Calibration Cycle | - |
| Elements | Two from tables 1 5/8 A, 3 1/8 A, 4 1/16 A, or 6 1/8 A |
3128A | 100 mW to 10 kW, Single Carrier RF Power Monitor
The 3128A Wattcher RF Power Monitor/Alarm is designed to protect and monitor your RF frequency transmission system by connecting the power meter to a Bird dual port thruline line section and two elements compatible with the RF coaxial line.
The elements are selected by the user to cover the desired power levels and frequency ranges. Purpose and Function Abnormal loading conditions cause the transmitter to quickly shutdown, a user selectable audible alarm to sound, and an alarm LED to flash. Remote access is available for resetting audible and visual alarms. Fail-safe or non fail-safe modes are user selectable and the reflected power trip level is adjustable.
| product specifications | |
|---|---|
| Item No | 3128A |
| Item Name | Single Carrier, Wattcher, RF Monitor |
| Power Range | 100 mW to 10 kW using Bird® Plug-in Elements |
| Frequency Range | 450 kHz to 1 GHz |
| Insertion VSWR | with N connectors 1.05 max. to 1000 MHz, 1.10 max. to 2700 MHz |
| Accuracy | ± 5% of full scale |
| Meter Scales | FWD and RFL 25, 50, 100 W |
| Meter Sensitivity | 30 µA/1400 ohm |
| Alarms | Front Panel Buzzer and Red LED |
| Response Time | Activate Forward |
| Front Panel Controls | Reset push-button, reflected power limit display button, adjust alarm level recessed screw |
| Rear Panel Features | FWD/RFL DC signal inputs (BNC), DC power/remote reset connector, DPDT interlock relay connector, fail-safe/nonfail-safe selector, alarm buzzer disable, AC line voltage selector, safety fuses and IEC 320 AC receptacle |
| Inputs-Outputs | Cables |
| Includes | two 25 ft DC cables |
| AC Power | 115/230 VAC, 50/60 Hz @ 0.125A |
| DC Power | 9 to 16 VDC @ 1A |
| Connectors | - |
| Finish | Gray Powder Coat |
| Dimensions (W x H x D) | 19 in x 5.22 in x 3.75 in (483 mm x 133 mm x 95 mm) |
| Weight | 5 lb (2.28 kg) |
| Required Products | Line Section: 4522-002-5; QC connectors: Two |
| Calibration Cycle | - |
| Elements | Two from Tables 1, 2, 3, 3A, 4, or 6 |
3170B | 100 mW to 10 kW, Dual Meter - Dual Element Single Carrier RF Power Monitor
The 3170B Wattcher, RF Monitor and Alarm System, can automatically activate a variety of safety and equipment protection measures when it detects an abnormal antenna system load condition. The 3170B simultaneously displays forward and reflected power for 100 mW to 10 kW systems. Panel configuration consist of a line section complete with two QC-type N (female) connectors to insert in the coxial transmission line.
The RF monitoring system can protect your transmitting equipment from damage and loss of air time when faults cause high-standing waves. It can warn a remote operator of low power due to detuning, component deterioration, or AC line difficulties and high reflected power due to factors such as antenna icing, transmission line problems, physical accidents and lighting strikes.
| product specifications | |
|---|---|
| Item No | 3170B |
| Item Name | Dual Meter - Dual Element, Single Carrier Wattcher® RF Monitor |
| Power Range | 100 mW to 10 kW using Bird® Plug-in Elements |
| Frequency Range | 450 kHz to 1 GHz |
| Insertion VSWR | N Connectors 1.05 max. to 1000 MHz |
| Accuracy | ± 5% of full scale |
| Meter Scales (FWD and RFL) | 25, 50, 100 W |
| Alarms | Front Panel Buzzer, "Active" and "Trip" LEDs for forward/reflected |
| Response Time | 25 µs max. |
| Activate Forward | 73 µs to 50 ms nominal (adjustable) monitor delay |
| Front Panel Controls | Reset push-button, adjust FWD/RFL alarm levels screw, element sockets |
| Rear Panel Features | DC FWD/RFL signal inputs, main and remote meter drive outputs, external 12-16 VDC supply input, alarm in/out, reset in/out, AC line voltage selector, fuse, IEC 320 AC receptacle |
| Inputs-Outputs | TTL compatible +5 V logic. Outputs for remote meter |
| AC Power | 115/230 VAC, 50/60 Hz @ 56mA |
| DC Power | 12.7 to 16.0 VDC @ 400mA max. |
| Connectors | QC Type (Female N normally supplied) |
| Finish | Gray Powder Coat |
| Dimensions (W x H x D) | 19 in x 5.22 in x 9.3 in (483 mm x 133 mm x 237 mm) |
| Weight | 7 lb (3.2 kg) |
| Required Products | Elements: Two from Tables 1, 2, 3, 3A, 4, or 6 |
| Calibration Cycle | 1 Year (for element) |
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