Some have found that they need a smaller resistor value than Allard's 47k
to get 5 watts out, some have gone as low as 10k. ??That's a better
solution than turning up R136. ??That variation is due to how the BFO
lands on the edge of the crystal filter, so different rigs wind up with
different drive levels into the IRF510. ??My guess is that everybody could
do just fine using 10k and thus drive the IRF510 relatively hard, since
the IRF510 does not have to be a linear amp when transmitting CW. ??Though
Q13 is already out beyond its dissipation limits, as is R141. ??So those
parts might possibly blow with too high of a drive level, though nobody
has reported a problem like that recently.

I'll let somebody who has gotten around to doing it give advice on how to
get digital modes going.

On Tue, May 30, 2017 at 11:42 pm, John Smith wrote:

When you say BFO is on the skirt of the filter, do you mean CW will need
to be turned up?

And with clean CW we drive it really hard.--- How hard?

Do you offer any words of advice about safely interfacing with isolated
audio and switches? I am planning on something like Easy Digi from
scratch
with a DB9 breakout board with screw terminals, plus the two audio cable
connections. Do I need pots for audio levels? Or do you think in windows
audio settings will be enough.

When you say BFO is on the skirt of the filter, do you mean CW will need to be turned up?

And with clean CW we drive it really hard.--- How hard?

Do you offer any words of advice about safely interfacing with isolated audio and switches? I am planning on something like Easy Digi from scratch with a DB9 breakout board with screw terminals, plus the two audio cable connections. Do I need pots for audio levels? Or do you think in windows audio settings will be enough.

?

I was happy with a SSB Transceiver to go with my CW transceiver, but I
can't help thinking I am missing a great opportunity to try digital very
cheaply with the Bit-X 40. Especially since Allard has made it so easy
with enabling the functions in the code and tweaking them so they work and
work well. Thanks for that.

But I don't know what kind of CW this is. Is it MCW or regular (No Oo
Card) CW? Non engineer needs simple answer.

And now for some friendly feedback. Allard, would you consider changing
the "Function Button Wiring" instruction to include the 8 pin connector in
addition to the orange wire. Both connectors have an orange wire, and I
had to look up Randy's Raduino Pin Out PDF to find out which one has Pin
A3.

I have no idea what commercial rigs do these days. ??But I'd think that in
all cases the display should show the transmit carrier frequency whether
transmitting or receiving. ?? (The carrier is suppressed when in SSB mode,
but the carrier is still the frequency that gets displayed.) ?? ?? The vfo
would have to move to one side by an amount equal to the sidetone
frequency (as set during configuration) when receiving in CW mode. ??
Which side it gets moved to is determined by whether we are in UCW or LCW
mode. ??Of course, Receive Incremental Tuning can be used to adjust the
vfo further during receive. ??I'd prefer that the main display always show
the transmit frequency, but with an RIT delta frequency shown in the
bottom line of the display if RIT is enabled.
??

On Tue, May 30, 2017 at 03:53 pm, Allard PE1NWL wrote:

So the actual transmitted frequency is indeed a few hundred hertz off
the
dial frequency as shown on the display. This may be confusing for some.
I
will see if I can improve this in the next version so that the dial
frequency is updated during TX (same as in some commercial rigs).

i have got it working at last. i downloaded the driver from GOGO:TRONICS

thanks for the info from everybody

73's de terry gm4dso

Allard's solution is regular CW. ?It should give a cleaner signal than the audio oscillators that are often used with the Bitx transceivers,

?

Is it MCW or regular (No Oo Card) CW?

?

That will work.

Jack, W8TEE

---

From: William R Maxwell <wrmaxwell@...>
To: [email protected]
Sent: Wednesday, May 31, 2017 1:12 AM
Subject: Re: [BITX20] #W8TEE TFT/VFO Boards Gone

So, just to be absolutely clear, Jack, I emailed requesting 4 boards but had not received a response from you before you ran out of stock and as a result, I hadn't made any payment.

Now, once you receive more stock and let the group know, I will need to replace my order for 4 boards, being sure to provide my shipping address and then await your reply before taking Paypal action?

Thanks

Bill, VK7MX

On 31/05/2017 2:40 PM, Jack Purdum via Groups.Io wrote:

That would have been the smart thing to do, but I did send out multiples on some orders and then realized I wasn't going to have enough boards. So if your order comes up short, you need to reorder those additional board(s) you did not receive. Anyone who ordered over 5 boards will definitely be short as I did not send more than 4 boards to anyone. Please write before any order or payment stating how many you want. I will respond with the number I will send and then you can make the payment. Be sure to include your shipping address on your order to me.?

Thanks for your support...the XYL can SuperSize her meal several times this month!

Jack, W8TEE

---

From: William R Maxwell <wrmaxwell@...>
To: [email protected]
Sent: Wednesday, May 31, 2017 12:07 AM
Subject: Re: [BITX20] @W8TEE TFT/VFO Boards Gone

Thanks for that update, Jack. Are you maintaining a list of those who have ordered but are awaiting your advice as to the number you are able to supply before making their Paypal payment, or will we need to re-order once your new stock arrives?

Bill, VK7MX

On 31/05/2017 1:26 PM, Jack Purdum via Groups.Io wrote:

All:

I am out of my order of 100 boards.

A few of you have already paid me and you will receive those orders, but it will take about 2 weeks for me to get more boards produced and shipped here. Also, When you order boards, PLEASE send a shipping address to me. Most of you have added the shipping address on your paypal payment and that's fine. Some of you have faith that I'll be able to divine the mailing address...almost never works. If you would include the shipping address at the time you tell me about the order, that would be a big help. Also, all foreign orders require me to fill out an export declaration form, which is a royal pain for both of us, but I don't have a choice. I have declared the board to be valued at $3.25 to you will have to pay duty on that amount.

I will announce when the new boards come in.

Jack, W8TEE

That would have been the smart thing to do, but I did send out multiples on some orders and then realized I wasn't going to have enough boards. So if your order comes up short, you need to reorder those additional board(s) you did not receive. Anyone who ordered over 5 boards will definitely be short as I did not send more than 4 boards to anyone. Please write before any order or payment stating how many you want. I will respond with the number I will send and then you can make the payment. Be sure to include your shipping address on your order to me.?

Thanks for your support...the XYL can SuperSize her meal several times this month!

Jack, W8TEE

---

From: William R Maxwell <wrmaxwell@...>
To: [email protected]
Sent: Wednesday, May 31, 2017 12:07 AM
Subject: Re: [BITX20] @W8TEE TFT/VFO Boards Gone

Thanks for that update, Jack. Are you maintaining a list of those who have ordered but are awaiting your advice as to the number you are able to supply before making their Paypal payment, or will we need to re-order once your new stock arrives?

Bill, VK7MX

On 31/05/2017 1:26 PM, Jack Purdum via Groups.Io wrote:

All:

I am out of my order of 100 boards.

A few of you have already paid me and you will receive those orders, but it will take about 2 weeks for me to get more boards produced and shipped here. Also, When you order boards, PLEASE send a shipping address to me. Most of you have added the shipping address on your paypal payment and that's fine. Some of you have faith that I'll be able to divine the mailing address...almost never works. If you would include the shipping address at the time you tell me about the order, that would be a big help. Also, all foreign orders require me to fill out an export declaration form, which is a royal pain for both of us, but I don't have a choice. I have declared the board to be valued at $3.25 to you will have to pay duty on that amount.

I will announce when the new boards come in.

Jack, W8TEE

All:

I am out of my order of 100 boards.

A few of you have already paid me and you will receive those orders, but it will take about 2 weeks for me to get more boards produced and shipped here. Also, When you order boards, PLEASE send a shipping address to me. Most of you have added the shipping address on your paypal payment and that's fine. Some of you have faith that I'll be able to divine the mailing address...almost never works. If you would include the shipping address at the time you tell me about the order, that would be a big help. Also, all foreign orders require me to fill out an export declaration form, which is a royal pain for both of us, but I don't have a choice. I have declared the board to be valued at $3.25 to you will have to pay duty on that amount.

I will announce when the new boards come in.

Jack, W8TEE