Bird Technologies WBC Datasheet

WBC Wideband Coupler

Bird® Electronic Corporation now oers a convenient, cost eective product for RF Power Measurement in

High Power applications. The Bird BroadBand Directional Coupler uses the Bird Model 5000-XT, a

handheld meter, with a Wideband Coupler and the Bird Terminating Power Sensor for accurate,

repeatable readings of both UHF and VHF, forward and reflected power in broadcast facilities.

PROBLEMS } SOLUTIONS

Tight budgets for power measurement

} Cost eective coupler solution

Need to support multiple transmitter stations

} Portable equipment

Limited training for station personnel

Easy-to-use

}

Once the line section is installed, power meaurement is as simple as 1, 2, 3!

1. Connect the Terminating Power Sensor to the forward or
reected socket coupler.

2. Enter the oset value using the Model 5000 keypad.

3. Read the RF power output of your transmitter in Watts, kW, or dBm.

The BroadBand Directional Coupler is a cost eective Power Measure­ment alternative for your transmitter monitoring needs.

WBC Wideband Coupler

Specication Characteristic

Frequency Range 45 MHz to 230 MHz (VHF Model)

450 MHz to 890 MHz (UHF Model)
450 MHz to 800 MHz for 6” (UHF Models)

Maximum Power Transmission line and frequency

dependent (See Graph 1)

Nominal Coupling Transmission line dependent (See Table 1)

Directivity 28 db Min.

Coupler Output

Type “N” Female

Connector

Coupler Output VSWR 1.2 Max

Main Line VSWR 1.1 Max

Coupling Uncertainty

+/- 0.05 dB

(after correction)

Operating Temperature +10° to +40°C

Storage Temperature -20° to + 85°C

Weight Transmission line dependent (See Table 2)

Dimensions Transmission line dependent (See Table 2)

TRANSMISSION LINE POWER RATING

4000

1000

100

10

8 3/16

75

9 3/16

50

6 1/8

50
8 1/8

1 5/8

AVERAGE POWER KW

9 3/16
75

4 1/16

3 1/8

VHF UHF

1-5/8” 62 dB ± 2 db 59 db ± 2 db
3-1/8” 69 db ± 2 db 64 db ± 2 db

4-1/16” 70 db ± 2 db 67 db ± 2 db

6-1/8” 75 db ± 2 db 72 db ± 2 db

Table 1

Model
Number

Line Size Frequency

Range

Length
(in.)

Weigth
(lbs.)

WBC1-45 1-5/8 Flanged VHF 6.75 3.65
WBC1U-45 1-5/8 Unlanged VHF 6.38 1.8

WBC1-400 1-5/8 Flanged UHF 6.75 3.65

WBC1U-400 1-5/8 Unlanged UHF 6.38 1.8

WBC3-45 3-1/8 Flanged VHF 7.03 6

WBC3U-45 3-1/8 Unanged

VHF 6.5 2.75

(Recessed)

WBC3UF-45 3-1/8 Unanged

VHF 6.5 2.75

(Flush)

WBC3-400 3-1/8 Flanged UHF 7.03 6

WBC3U-400 3-1/8 Unanged

UHF 6.5 2.75

(Recessed)

WBC3UF-400 3-1/8 Unanged

UHF 6.5 2.75

(Flush)

WBC4-45 4-1/16 Flanged VHF 8.38 8.88

WBC4M-45 4-1/16 Flanged

VHF 8.38 8.88

(MYAT)

WBC4U-45 4-1/16 Unanged VHF 7.5 2.88

WBC4-400 4-1/16 Flanged UHF 8.38 8.88

WBC4U-400 4-1/16 Unanged UHF 7.5 2.88

WBC4M-400 4-1/16 Flanged UHF 8.38 8.88

WBC6-45 6-1/8 Flanged VHF 10.22 13.2

WBC6U-45 6-1/8 Unanged VHF 9.63 7.2

WBC6-400 6-1/8 Flanged UHF 10.22 13.2

WBC6U-400 6-1/8 Unanged UHF 9.63 7.2

Table 2

1

.7

1 10 100 1000 4000

Graph 1

30303 Aurora Rd. Solon, OH 44139 866.695.4569 www.bird-technologies.com

Coupler_Wideband_WBC-06032013

7/8