Choke Balun for ATU/G5RV 400w [B-STOCK]

Choke Balun for ATU/G5RV 400w [B-STOCK]
Choke Balun for ATU/G5RV 400w [B-STOCK] Choke Balun for ATU/G5RV 400w [B-STOCK] Choke Balun for ATU/G5RV 400w [B-STOCK]
Brand: Ham Goodies
Product Code: HF-5RV400B
Availability: 1
Price: £40.00 £32.00
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This is a no compromise solution.  A robust 1:1 Choke Balun for use with a Doublet or G5RV where ladder-line meets coax - Perhaps just after your ATU.  You could also position it at the base of a resonant vertical - to act as a choke/isolator.  We don't cut corners: This balun is wound using RG142 coax and the ferrite core is an FT240-31 offering resistive performance between 3.5MHz and 30MHz so a perfect solution for your all-band HF aerial - and it's rated for over 400 watts continuous.

B-STOCK : The terminals are slightly closer together than normal, and one is slightly lower (see image 4) - this does not affect the product's performance, just falls short of our usual high-standard of workmanship - so is being offered at a discount.  This is the 8-turn model.

Check out the 2nd picture showing the inside - clear casting-resin for a weather-proof seal!

  • 8 turns of RG142 on a FT240-31 core
  • 2x M4 (4mm) terminals
  • SO239 connector
  • 120x80x50mm
  • Weight: 585g
  • PDF Guide - G5RV Choke

We also offer this as a 1:1 Dipole Balun - using the same internal configuration, but with side-terminals and marine-grade eye-bolts.  Standard (100-watt) versions also available - see Related Items.

Baluns - What/Why?
It's good practice to put a Bal(anced)Un(balanced) where coax meets aerial or balanced-feeder.  A Balun will help prevent "common-mode current" on the outer of the coaxial braid - This is vital to ensure that RF does not flow down the coax, turn it into part of the antenna system and give you "RF in the Shack".  Using a 1:1 Current Balun at the junction of balanced-feeder+coax is preferable, in most cases, to a 4:1 Balun - and certainly better than the internal 4:1 (voltage) balun found in many tuners!

Made (and used) by us - Be weary of any supplier who can't (or won't) tell you what's inside the box you buy!

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