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Be careful if you are using the schematic of the raduino from the hfsigs.com website. The numbering for P3 ("The second set of 16 pins on the bottom connector...") on the schematic is reversed from

Lionised by lions....! ?John ?G0UCP

From the comments in the sketch: ?? The pins are assigned as follows: ????????? A0,?? A1,? A2,? A3,?? GND,?? +5V,? A6,? A7 ?????? pin 8???? 7??? 6??? 5????

Nope, the function button is not the 12v supply wire. ?There's more than one orange wire. ? ?The WireUp diagram only shows the wires he is using in that minimal configuration, you will still have a

Some questions about wiring up these mods.? I just got my boards in the mail yesterday and have looked them over, but I need a little help here: 1) How do I identify which pin is which?? Does

Larry, I know what u mean, mods are keeping me busy. I have 2 bitx40s. One I keep on line nearly 24/7. The other i keep testing and adding mods. On my test unit i run a homebrew dds sg5351 and nano.

Joe, Thanks for your reply. I thought I saw your QRZ station pictures a while back! I was surprised when I saw you where in the contacts! Mainly the first time on JT65 for me in the receive mode. I

LARRY, Will keep an eye open for your jt65 transmission. Rig is on most times Just with casual usage, I have 80 contacts on jt65..... Lots of fun Running raduino v 109 but will be moving to 112 on

Brian: Connect an ammeter to the power supply to the board. Measure the current draw on receive. This is your "idle" current on receive. It should be about 35 ma. Then, be sure RV1 is BELOW 3v. say

Thanks! I'll play with the numbers when I get home , I'm 1/2 way through my 48 hour shifts. Jonathan

For what it’s worth: This morning finally managed to get the BITX40 to receive JT65 (with help from longtime friend: K9HWL). My second attempt I set the WSJT-X software tuned to 7.076 USB and

I've been searching around but can't seem to find my answer. How exactly do I measure the PA voltage and bias? I have a cheap Harbor Freight multi-meter and have tried measuring at the PA Power

Brings to mind, “On the shoulders of giants!” Quite a collection of legendary folks in our hobby. 73, Dale K9NN Sent: Tuesday, May 16, 2017 6:14 PM To: [email protected] Subject: [BITX20]

It is likely that you will hear a squeal at voltages much higher than 13 Volts.

John, Thanks very much for your input. Just to clarify. * I getting 125-135 ma on RECEIVE * My Idle TRANSMIT ?was about 300and a out of the box * My HAAAA TRANSMIT was about 600 out of the box.

Hi Mike, Various BITX20 kits are available, and there is a lot of information and evolution occurring. ? A good source (one of many) of information and kits / bits

Andy: Drawing 139 ma on xmt and 300 ma idle sounds like a power supply problem. You should have one capable of 12v @ 4A connected to the PA. Make sure of that before doing other checks. Also make

A typical equalization charge for a lead acid battery is slightly over 15v. ?A few hours a month at 15v is not a bad thing, though if it's got inspection caps then the water levels should be

Very nice, Ash. Congrats. Now where is the recording of that round table...Hi. john AD5YE

Brilliant!