Re: top band ubitx

bill richardson

Doing some testing with my uBitx on 160m with a 160m LPF attached to the output. I’m seeing about 15 Watts out but the current draw is running very high at just over 3 amps. So not usable on 160m at the finals will blow I’m sure. The bias stays normal so it’s something else? I wonder what others are seeing?

Doing the same test on my Bitx40 on 160m I see about 10 Watts out and the current is about 1.5 amps and very usable.

Thanks Bill Ng1p

On Jan 14, 2018, at 1:40 PM, Art Olson <olson339@...> wrote:


On Jan 14, 2018, at 1:29 PM, bill richardson <ng1p.bill@...> wrote:

I got the connector from Amazon

On Jan 14, 2018, at 1:17 PM, Art Olson <olson339@...> wrote:

What are you using to connect the filter to the antenna connector on the back of the rig

Art - N2AJO 

On Jan 14, 2018, at 1:12 PM, K9HZ <bill@...> wrote:

Very smart.  External. Then you can change it to whatever band you want at any time. 

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ


Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois


Owner – Operator

Villa Grand Piton - J68HZ

Soufriere, St. Lucia W.I.

Rent it:

email:  bill@...


On Jan 14, 2018, at 12:00 PM, bill richardson <ng1p.bill@...> wrote:

This is what I did for my bitx40 for use on 80 and 160. Using the Qrp lab filters

On Jan 14, 2018, at 12:31 PM, Michael Babineau <mbabineau.ve3wmb@...> wrote:

.. and QRP Labs have some very nice and inexpensive LPF kits which includes one for 160m :


Michael VE3WMB

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