Welcome to the new FlexRadio Community! Please review the new Community Rules and other important new Community information on the Message Board.
If you are having a problem, please check the Help Center for known solutions.
Need technical support from FlexRadio? It's as simple as Creating a HelpDesk ticket.

Reversible Beverage On Ground

Rich McCabeRich McCabe Member ✭✭
edited November 2019 in FLEX-6000 Signature Series
I think I am going to setup a reversible beverage antenna and in the typical configuration they use a pre-amp for 160 meters.  I have been very happy with the pre-amp in my 6600 so wondering if I need an external unit. The feedpoint for the on ground beverage is 75 ohm and about 10-15 feet from the radio. The unit is fed with two coax's so I would have to rig up a relay to switch it back and forth (for direction) but would rather just use the Flex preamp of possible.

Anyone have experience with this?



  • Kam SirageldinKam Sirageldin Member
    edited August 2019
    I run a KD9SV on ground beverage with my 6600M (actually I keep it an average of 2 feet above the ground).. Preamp built into the 6600M works fine. 73 Kam TI5/N3KS
  • Tom WorthingtonTom Worthington Member ✭✭
    edited December 2018
    You should be able to use the two Rx ports and just switch between them to change directions.

  • Rich McCabeRich McCabe Member ✭✭
    edited December 2018
    Thanks guys. I thought about using two ports but I think that ties up both SCUs so I cant have another band being monitored. Correct?

  • Tom WorthingtonTom Worthington Member ✭✭
    edited December 2018
    That's correct, I think but you could use a transverter port instead.
  • Clay N9IOClay N9IO Clay N9IO Member ✭✭
    edited December 2018
    How long is your BOG Kam?
  • Kam SirageldinKam Sirageldin Member
    edited December 2018
    It's about 680ft Clay
  • John - K3MAJohn - K3MA Member ✭✭
    edited January 2019
    Another option is to use.  https://jkantennas.com/jkstore/jk-bevflex-4.html

    I have it configured as a BOG 250ft long.  Uses all RG6.  One BOG wire that can be tapped at any point along the BOG.  Can change directions.  The RX lines back to the Flex are 150ft long and the Preamp in the Flex work well enough for 80M and 160M RX.  If you want to use it on higher freq bands then additional preamp might be needed.

    John K3MA
  • Rich McCabeRich McCabe Member ✭✭
    edited December 2018
    I looked at that one as well John but in my setup it made things a lot more complicated.  The KD9SV would be much easier to implement and is ready for the elements without adding enclosures.

    I might have ran out of time to do this as I live in Iowa and getting ground rods down and staples for the wire is going to be a challenge. Unless we see some 40 degree days.
  • Joe N3HEEJoe N3HEE Member ✭✭
    edited December 2018
    This is probably too long for optimum directivity and f/b ratios. Try something closer to 200 feet first. Depending on your soil type you may need something a little longer. The preamps in the 6600 will work fine. I use them on my K9AY loops. You can use RXA and XVA for switching directions on 160 meters on the same slice receiver. Joe - N3HEE
  • Stan VA7NFStan VA7NF President Surrey Amateur Radio Communications Member ✭✭
    edited December 2018
    I'll disagree with the 200 ft unless you are looking at 20M and higher.
    Used two beverages, 575 feet N and S and 400 feet E and W, each with two RG6 feed lines (4 total) which ran into a TV 4:1 switch.  That switch happened to permit two buttons pressed at once so many combinations were available.
    I didn't have a need to remote this switch.
    An aside, the West direction pointed directly (1000 foot away) at a traffic light coil in ground pickup sensor which created significant EMI.
  • philip.theisphilip.theis Member
    edited January 2019
    Here's the test: in the middle of the day when noise is lowest, connect the beverage. Does the noise increase over no antenna connected? If it shows an increase you do not need a preamp.
  • Lin NI4YLin NI4Y Member ✭✭
    edited November 2019
    I know this is very late post, but I used an ARR preamp with my 1700' BOG for 2200m, 630m and 60khz (WWVB) this past winter at the lake QTH.  I could only use about +6-8db of the preamp on the Flex combined with the ARR P0.01-20/20VD.  Otherwise it was just a mess of noise. I compared this with just the Flex preamplifier set to +20 and +30 and the only real improvement was on WWVB.  So unless your really going low just stick with the preamp in the 6600 crank it up to near max and you should be hearing as well as someone with an ARR and a regular HF radio maybe better. 

Leave a Comment

Rich Text Editor. To edit a paragraph's style, hit tab to get to the paragraph menu. From there you will be able to pick one style. Nothing defaults to paragraph. An inline formatting menu will show up when you select text. Hit tab to get into that menu. Some elements, such as rich link embeds, images, loading indicators, and error messages may get inserted into the editor. You may navigate to these using the arrow keys inside of the editor and delete them with the delete or backspace key.