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Tx current draw

 

Evan, no problem. Just enjoy your ride. I gave up my bike a while ago as it was getting too dangerous out there with the idiots on their cell phones and high on some junk.
Be safe.
Barry

On Tue, Jun 8, 2021, 1:16 AM Evan Hand <elhandjr@...> wrote:

Barry,

That current sounds high. I am on an overnight motorcycle trip so cannot measure my v6 for comparison.?

There is a voltage chart in the files section of this group for a v4. The circuits are the same as the v6 for the sections from Q90 on through the finals.? Search for Raj¡¯s spreadsheet using his call sign - vu2zap.?

I will check tomorrow when I am back at my shack.?

73
Evan
AC9TU
 

Barry,

That current sounds high. I am on an overnight motorcycle trip so cannot measure my v6 for comparison.?

There is a voltage chart in the files section of this group for a v4. The circuits are the same as the v6 for the sections from Q90 on through the finals. ?Search for Raj¡¯s spreadsheet using his call sign - vu2zap.?

I will check tomorrow when I am back at my shack.?

73
Evan
AC9TU
Mark - N7EKU
 

I saw the link in a post from 2018,

So the idle current draw may be higher now that there is a large display to power.? Maybe someone here has done a recent bias adjustment...
Mark - N7EKU
 


 

Evan, both bias pots are set fully CW, zero gate voltage. In SSB mode, the TX idling current is over 900ma. Something is pulling a lot of current but nothing seems hot. In RX the current draw is about 450ma.
Barry


On Mon, Jun 7, 2021, 5:21 PM Evan Hand <elhandjr@...> wrote:

Barry,

The best way is to measure the current is to first rotate both bias pots to full clockwise position, ?note the current, then increase each pot one at a time to get the total current 200 ms above the full clockwise of both pot values.?


Hope this helps

73
Evsn
AC9TU
 

Barry,

The best way is to measure the current is to first rotate both bias pots to full clockwise position, ?note the current, then increase each pot one at a time to get the total current 200 ms above the full clockwise of both pot values.?


Hope this helps

73
Evsn
AC9TU
 

Can someone give me an idea what typically is the V6 current draw in SSB mode with no modulation??
Thanks
Barry
K3bo

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