• Triplexer VA6AM with 10, 15, and 20m Band Pass Filters

VA6AM High Performance Triplexer  200W Model  VA6AM-200

Includes 10, 15, and 20m Cauer  Band Pass Filters

The Triplexer converts a single feed line from a tribander, multiband vertical or wire antenna into 3 independent bands allowing you to transmit and listen on different bands the same time.

It can be a valuable addition to your station in SO2R and Multi-Op contesting, Field Day operations, DX-peditions and in many other special events.

 The Triplexer together with band-pass filters allows you to transmit and listen on different bands simultaneously.

The idea to have a triplexer with a good isolation came to VA6AM when he realized that -27dB attenuation between 10 and 15 meter bands in his 28MHz BPF (5B4AGN design) was not a sufficient number! At least -60dB is required between bands to work comfortably and safely in a SO2R single tribander 100-150 watt station setup. A  good triplexer should deliver 30-35dB attenuation in addition to a good BPF.  We recommend the  Array Solutions K7MI built Cauer  20,15, and 10m Cauer200W BandPass Filters which have greater than 60 dB of attenuation in the adjacent bands. 

VA6AM Specifications

•             200 Watts – ICAS

•             100 Watts -  100% Duty Cycle

•             Isolation is better then 30 dB 

•             Insertion loss less then .15 dB

•             Retern loss better then 26 dB  (SWR less than 1.1 dB on all bands

•             Box size 13 X 8 X 3.5 inches

•             SO-239 RF Connectors

Designed to enhance 15m performance and deliver better performance than all the other triplexers on the market which all suffer on the 15m band.

The triplexer central frequency is 20MHz. This is how the software calculated it and there is some sense to do this way to have  the same isolation between 15 and 10 meter bands as it is between 15 and 20 meter bands.

If the triplexer central frequency  is moved to 21MHz it will increase isolation of  the 20m band to -35dB and decrease  the 10m band isolation to -25dB.

The 15m band triplexer leg is quite wide by parameters which allows it to have good VSWR, Insertion Loss and Return Loss for this band despite the  fact that triplexer tuned for 20MHz.

The graph below shows how a good triplexer should be built. It is not a perfect shape  like  a software simulated design, but it is a well-balanced triplexer. 

The VA6AM is a well balanced triplexer . This plot was taken from the the Antenna Port.


Every band filter has LC traps for other bands, such as 10M HPF has LC traps for 21MHZ and 14MHz, 20M LPF has LC traps for 21MHz and 28MHz and 15M BPF has LC traps for 14MHz and 28MHz. Band traps allow to achieve a very good band isolation.

Triplexer VA6AM with 10, 15, and 20m Band Pass Filters

  • Brand: Array Solutions
  • Product Code: Triplexer VA6AM with Band Pass Filters
  • Availability: In Stock
  • $579.00

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