Microwave Video

Southwest Microwave Series 900/902 23 GHz Microwave Radio Systems Real Time Video with Audio/Data Channels 1/2 Mile (800m) to 10 miles (16km)

Series 900/902
Wireless Video 
Transmission Links


he Series 900 and 902 Microwave Video Transmission Links are the high performance answer for long range wireless video transmission requirements, full color or black and white. Applications include remote surveillance, industrial, institutional, remote telemetry, production control, and video teleconferencing. In addition, built-in sub-carriers are capable of carrying an analog or digital signal for remote camera control: pan, tilt, zoom and switching. High selectivity and precise beam control enables the links to be located close together for multiple channel operation. The FM super-heterodyne design assures superior picture quality in adverse weather conditions.

Flexibility The simplex video transmission series has the capability of providing sub-carriers for transmitting audio or data information. These sub-carrier interfaces include audio/FSK, RS-232, RS-422, and most all camera control system interfaces. These sub-carriers may be used for two-way (duplex) audio, camera control, or video switching. This two-way data transmission also makes it possible to remotely operate card readers, gates, and turnstiles. When multiple sub-carrier configurations are used, a separate desktop BMS unit is provided which includes a built-in 24VDC power supply. Rackmount and weather-resistant outdoor BMS modules are available.

All systems are individually tuned to a specific assigned frequency to ensure interference free operation and provide a reliable communication link. Frequency and FCC license easily obtained. No customer adjustments are required.

900 Video Link

The Series 900/902 Microwave Radio System offers following features:
  • FM Superheterodyne Operation

  • Compatible with NTSC or PAL Color Video

  • Transmits up to 10 Miles (16km)

  • Low Power Consumption

  • Quick and Easy Installation

  • Resistant to RFI/EMI effects

  • Licensed frequency for secure interference free operation

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Frequency Range: 21.2 to 23.6 GHz (FCC Part 21 and 94 bands)
Modulation: FM ( 4 MHz deviation)
T/R Separation: 50 MHz
Video bandwidth
900 Series: 10 MHz
900 BMS Series: 4.5 MHz NTSC, 5.5 MHz PAL
902 Series: 6 MHz
902 BMS Series: 4.5 MHz
Radio Capacity: 525/625 line video plus subcarrier
Video S/N Ratio: 65 dB min.@ - 35 dBm RCL (weighted)
System Gain: 165 dB w/ 2 ft. antenna

Subcarrier Options
     900: 1 Forward
     900 BMS: 3 Forward
     902: 1 Reverse
     902 BMS: 2 Duplex

 Digital: RS-232/RS-422 9.6 Kbps,
     19.2 Kbps, Manchester, BiPhase
 Analog: 1 volt p-p into 600 ohm balanced

Input Voltage: TX or RX 12 to 24 VDC 1.2 Amp
Temperature: - 30F to 131F
(- 30C to + 55C)
Relative Humidity:100%
Size - RF Unit: 26 in. (66cm) dia., 14 in. (35.5cm) deep
Weight - RF Unit 26 lbs. (12kg)
Mounting: 2.5 in. (6.5cm) O.D. Pole Clamps Emission Designator:
900 Series: 33MOF9W
902 Series: 22M0F9W

FCC Identifier
900 Series: CA6900
902 Series: CA6902


Power Output: 20 mW typical
Frequency Stability: 0.03%
Spurious Response: Per FCC Part 21 and 94
Video Input: 1 volt p-p into 75 ohm (BNC)


Type: FM superheterodyne
Receiver Threshold: - 73 dBm (37dB weighted S/N)
Loss of Carrier: 6.2 KHz signal on align terminal
Video Output: 1 volt p-p into 75 ohm (BNC)

Polarization: Vertical or Horizontal
Size: 24 in. (60cm),
48 in. (120cm) optional
Gain: 39 dBi - 2 ft.,
44 dBi - 4 ft.
Beamwidth: 1.6 degrees (3 dB) 2 ft.
0.8 degrees (3db) 4 ft.

BMS Units

115 or 230 VAC input
24 VDC output to RF Unit
+14 F to +104 F (-10 C to +40 C) non condensing 95%
BNC and terminal strip to RF Unit
13.75 in. (34.9cm) W, 3.5 in. (8.9cm) H, 13.5 in. (34.3cm) D
Weight:10 lbs. (4.5kg)

How to Order
Specify configuration and operating frequency and include sub-carrier formats. See price schedule for accessories. All systems include appropriate mounting hardware. Specifications subject to change without notice.


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call 301-924-7400 EXT 25
 or e-mail sales

a DCE Company

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