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JB1-1G

Miniature Junction Box
Description
  • Miniature junction box = coupling in or out of supply on the coaxial cable.
  • Large frequency range: 1 MHz → 1.6 GHz.
  • Excellent isolation between RF and supply : > 60 dB (@ 10-1600 MHz).
  • To be used where coupling in or out of DC supply on the coaxial cable is required:
  • Power supply to a mast amplifier or active antenna.
  • DC supply at duplex filters.
  • Spectrum analyzer with external preamplifier.
  • Provided with FME-male connector or SMA-female connector on input and output.
  • Quick installation using the dual-adhesive pad provided.
Specification
Electrical
Power Supply Red/black double cable
Model JB1-1G
Frequency 1 – 1600 MHz
Insertion Loss 0.6 dB typ. < 0.3 dB @ 1000 MHz
Max. Voltage 50 V
VSWR Max. <1.4:1 typ < 1.3:1
Max. Current 500 mA
Isolation RF-DC Min. 60 dB typ. ≥ 75 dB (@ 10 – 1600 MHz)
Mechanical
Connection(s) RF : FME(m) or SMA(f)
DC : Red/black flexible wire
Historic Brand Amphenol Procom
Dimensions 50 x 50 x 21 mm / 1.97 x 1.97 x 0.83 in.
Weight Approx. 0.65 kg / 1.43 lb.
Ordering Codes
Model Product No. Additional Information

JB1-1G-SMA

 200001698 RF connector : SMA(f)

JB1-1G-FME

 200002581 RF connector : FME(m)
Additional Information
EU and UK Declaration of Conformity

Hereby Amphenol Procom declare that the product type JB1-1G is in compliance with EU Directive 2014/53/EU and
the UK Radio Equipment Regulations 2017 (S.I. 2017 No. 1206).
The full text of the Declaration of Conformity is available at:

https://s3.us-west-2.amazonaws.com/catsy.1080/Declaration-of-Conformity-JB.pdf

Diagrams

TYPICAL RESPONSE CURVE

MOUNTING DETAILS

PROCOM A/S reserves the right to amend specifications without prior notice
PROCOM A/S • Smedetoften 12 DK 3600 Frederikssund • Denmark
Generated : 2026-06-26 Version 1