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Antenna monitoring device Antenna checker (TV/FM common)-DCRDK-SJJ-733L
Antenna monitoring device Antenna checker (TV/FM common)-Japan Koshuha Co., Ltd.

Antenna monitoring device Antenna checker (TV/FM common)
Japan Koshuha Co., Ltd.


About This Product

SAMJ-200 antenna checker is an antenna inspection device used at relay broadcasting stations. You can measure the VSWR and DCR (direct current resistance) of FM and TV transmitting antennas during broadcasting. This device consists of an antenna checker body and a directional coupler for the antenna checker.The directional coupler is permanently installed on the antenna, and the main body is carried to the relay broadcasting station for use.

■Features

- VSWR and DCR of all FM bands and terrestrial digital broadcasting channels 13ch to 62ch can be measured with one device. - Measurements can be made in real time while the broadcaster is operating, and there is no effect on broadcasting. ・Both VSWR and DCR have a calibration function. -The VSWR measurement system has a built-in FM tuner and TV tuner, so there is no need to prepare bandpass filters for each frequency even for composite waves. - VSWR and DCR analog outputs are provided, allowing continuous recording with a recorder, etc. ・Two power supply methods: AC100V and AA batteries. -Small size makes it convenient to carry. Main configuration

■Antenna checker body

1.Antenna checker unit 1 unit 2. Connection cable (BNC cable) ・1 for traveling wave input connection ・1 for reflected wave input connection ・1 for DCR connection 3.1 AC adapter

■Directional coupler for antenna checker

1.One directional coupler for antenna checker 2.Connection cable (10D2W 50cm with N-P on both ends) 1 piece 3. 1 side tie mounting bracket 4. Traveling wave coupling characteristic standard curve 1 part

■Directional coupler for antenna checker Main line impedance

Nominal 50Ω

  • Product

    Antenna monitoring device Antenna checker (TV/FM common)

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1 Models of Antenna monitoring device Antenna checker (TV/FM common)

Image Part Number Price (excluding tax) Directional coupler for antenna checker High frequency leakage Directional coupler for antenna checker Weight Directional coupler for antenna checker Traveling wave power Directional coupler for antenna checker Coupling degree Directional coupler for antenna checker Directional coupler for antenna checker Insertion loss Directional coupler for antenna checker Frequency range Directional coupler for antenna checker Ambient temperature Directional coupler for antenna checker Sub-line connector Directional coupler for antenna checker Main line connector Directional coupler for antenna checker Main line VSWR Antenna checker body weight Antenna checker body measurement range Antenna checker body ambient temperature Antenna checker main power supply Antenna checker body connector Antenna checker body analog output
Antenna monitoring device Antenna checker (TV/FM common)-Part Number-DCRDK-SJJ-733L

DCRDK-SJJ-733L

Available upon quote

-40dB or less at DCR output end

Approximately 600g (excluding connection cable and mounting bracket)

1W~10W

Traveling wave: Approx. 40dB *4 Reflected wave: Approx. 34dB

Traveling wave: 30dB or more

0.2dB or less (main line)

FM band

-10~+50℃

BNC-J

N-J

1.07 or less

Approximately 5kg (including accessories)

VSWR: 1.05 ~3.0
DCR: 12.5 ~500mΩ
Measurement accuracy: VSWR, DCR both within 5% of full scale

-10~+50℃

Two power supply methods: dry battery (AA) and AC100V (approx. 25VA)

RF INPUT, DCR INPUT, ANALOG OUT are all BNC-R

1 each for VSWR and DCR
Output voltage: DC 0 ~ +5V at VSWR = 1.0 ~ 3.0
     :DCR=0~500mΩ DC0~+5V

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