Re: First contact today, slightly off frequency?
Another good way to do the calibration is to purchase one of the little inexpensive Pixie QRP transceivers. It puts out a CW carrier on 7040 MHz. Makes for a cheap signal generator. ?You can find them on Amazon and EBay.?
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That's what I am doing...now. Keep in mind I'm old...had my own Easter egg hunt this year.
Jack, ?W8TEE
From: Vince Vielhaber <vev@...>
To: [email protected]
Sent: Tuesday, May 30, 2017 10:13 AM
Subject: Re: [BITX20] #W8TEE Apology
Why not just send it to their registered paypal mailing address?
Vince.
On 05/30/2017 09:23 AM, Jack Purdum via Groups.Io wrote:
> All:
>
> I was sending out order notices from people who had written me about the
> board and sending the response to the group instead of the individual.
> (A lot of people placed orders, but did tell me where to ship the
> board(s).) I'll try to pay closer attention down the road.
>
> Jack, W8TEE
--
? Michigan VHF Corp.? ?
? ? ? ? ? ? ? ? ? ? ? ? ?
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Why not just send it to their registered paypal mailing address?
Vince.
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On 05/30/2017 09:23 AM, Jack Purdum via Groups.Io wrote: All:
I was sending out order notices from people who had written me about the
board and sending the response to the group instead of the individual.
(A lot of people placed orders, but did tell me where to ship the
board(s).) I'll try to pay closer attention down the road.
Jack, W8TEE
--
Michigan VHF Corp.
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Re: In praise of the BitX and this community
Great Richard. I have the same situation. HFSigs has made it fun and accessible to get on HF for under $100.?
I made a complete box for my Bitx40 before ever putting it on the air... I've never attached the cover because I like looking at the circuit and thinking through its function. I don't think that would be the case with even a used HF transceiver. ?
It's great doing mods with all the support here and elsewhere on the net. I believe the community makes this radio what it is.?
HFSigs vision likely anticipated the same.?
73
Jamie VA3RLF?
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All:
I was sending out order notices from people who had written me about the board and sending the response to the group instead of the individual. (A lot of people placed orders, but did tell me where to ship the board(s).) I'll try to pay closer attention down the road.
Jack, W8TEE
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Re: W8TEE TFT/VFO Board from FDIM talk
Each board is $7.50 postage paid to US. Send $7.50 via PayPal to
econjack@...
and put your mailing address on that order.?
Jack, W8TEE
From: KD8CGH <rkayakr@...>
To: [email protected]
Sent: Friday, May 26, 2017 11:37 PM
Subject: Re: [BITX20] W8TEE TFT/VFO Board from FDIM talk
Jack
? I would like 2 boards.
? ? ?Bob
? ? ?KD8CGH
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Re: W8TEE TFT/VFO Board from FDIM talk
Each board is $7.50 postage paid to US. Send $7.50 via PayPal to
econjack@...
and put your mailing address on that order.?
Jack, W8TEE
From: "rodwhit@..." <rodwhit@...>
To: [email protected]
Sent: Saturday, May 27, 2017 3:41 AM
Subject: Re: [BITX20] W8TEE TFT/VFO Board from FDIM talk
Jack,
hope this not late I'd like to reserve 3 boards, if I may...
73's KC5DZH Rodney Whitfield?
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Re: W8TEE TFT/VFO Board from FDIM talk
Each board is $7.50 postage paid to US. Your postage will be higher, but I don't know how much. Send $7.50 via PayPal to
econjack@...
and put your mailing address on that order. When it comes, look at the postage paid, subtract $2.62 (that's the US postage charge) and pay me the difference.
Jack, W8TEE
From: Jim McKay <mckayjim65@...>
To: [email protected]
Sent: Saturday, May 27, 2017 9:38 AM
Subject: Re: [BITX20] W8TEE TFT/VFO Board from FDIM talk
Jack,
If you are happy to export to England could I order a couple of FDIM?boards please?
73
Carl M0ICR
?
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Re: W8TEE TFT/VFO Board from FDIM talk
Each board is $7.50 postage paid to US. Your postage will be higher, but I don't know how much. Send $7.50 via PayPal to
econjack@...
and put your mailing address on that order. When it comes, look at the postage paid, subtract $2.62 (that's the US postage charge) and pay me the difference.
Jack, W8TEE
From: DJ4MU <pbepler@...>
To: [email protected]
Sent: Saturday, May 27, 2017 9:52 AM
Subject: [BITX20] W8TEE TFT/VFO Board from FDIM talk
Jack,
Thanks for all the work You put into this project.
If shipping to Germany isn't a problem I'd like
one of the boards , and please keep me in the queue for the AGC/CW/SC board when it becomes available.
Thanks
Philipp DJ4MU
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Re: W8TEE TFT/VFO Board from FDIM talk
Each board is $7.50 postage paid to US. Your postage will be higher, but I don't know how much. Send $7.50 via PayPal to
econjack@...
and repeat your mailing address on that order. When it comes, look at the postage paid, subtract $2.62 (that's the US postage charge) and pay me the difference.
Jack, W8TEE
From: CX8ABF Carlos Molina <cx8abf@...>
To: [email protected]
Sent: Saturday, May 27, 2017 9:55 AM
Subject: Re: [BITX20] W8TEE TFT/VFO Board from FDIM talk
Hi Jack
I¡¯m Carlos Molina ¨C CX8ABF
?
I¡¯m interested in one board,
my address:
Carlos Molina
Carreras Nacionales 3990
12300 Montevideo ¨C Uruguay
?
73 de Carlos
?
Sent: Friday, May 26, 2017 6:10 PM
Subject: [BITX20] W8TEE TFT/VFO Board from FDIM
talk
?
All:
?
Attached is the manual that
will go with the TFT/VFO PCB that I am making available. I suggest that you read
through it to determine if you want to build it. The manual only talks about the
TFT/VFO board. The AGC, CW mode, and speech compressor will be on a separate
board. I've also attached a schematic, and BOM for the board. I have a limited
amount of the boards and will announce their cost after I package one up and
take it to the post office to see what it costs to send it. That won't be cheap
as the PO requires it to be Parcel Post rather than First Class.
?
The way I'd like to do
this:
?
On Monday I will give you
the cost, which will include shipping to the US. If you order more than one
board, add $0.20 for each additional board. I will give you a Paypal account for
the payment.
?
Please write an email to me
first telling me how many boards you want and the address where to send them. If
I have boards left, I will write back with "Yes", whereupon you make your
payment after which I'll send the board(s). If I say "No", I'm out of boards so
don't make a payment. I may reorder and, if I do, I'll post here that they're
back in and we start over.
?
Read the manual and figure
out if your interested. My guess is that the first board will cost $6.00.
?
72,
Jack, W8TEE
?
?
?
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Re: First contact today, slightly off frequency?
Use a website like websdr.org to tune into a strong broadcast, and then try to find that same broadcast on your bitx.
Of course, this assumes the SDR station is showing the correct frequency.
Alternatively, if you do make contact with someone who has a more precise rig, ask them what their exact frequency, then use that information to calibrate.
--
Darren, W9ZIM
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Re: First contact today, slightly off frequency?
Terry,
Here's another trick:
in the evenings there are quite a few strong broadcast stations in the
section above 7200 kHz. You should be able to hear them even when you live
"in the sticks".
As these are broadcasting an AM signal with unsuppressed carrier you can
use them for calibration your radio.
Broadcast stations are usually precisely on frequency at 10 kHz intervals.
You will hear a strong whistle when you tune to a broadcast station. As
you tune trough the signal, the pitch of the whistle will go from high to
low until it is zero and then go up again.
The point where the whistle is exactly zero Hz is "zero beat". You can use
this as a reference point for calibrating your radio. In calibration mode,
adjust the offset value so that the whistle is zero Hz.
73 Allard PE1NWL
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On Tue, May 30, 2017 12:13, terryhugheskirkcudbright via Groups.Io wrote: hi allard
the problem that i have had with calibration is finding a carrier on an
exact frequency
i live in the sticks so finding a local station is hard to come by
73 de terry gm4dso
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Re: Raduino_v1.12 released
Hi Allard,
It was very clear tone. I will check again and inform you
73 Yiannis, SV5FRI
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On Tue, May 30, 2017 at 02:41 am, Allard PE1NWL wrote:
How is the generated CW carrier? Is it still a clean CW signal with no
clicks?
?
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Re: First contact today, slightly off frequency?
I hear you loud and clear. Even if it's not a 0 or 5.
Ken,T
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Re: First contact today, slightly off frequency?
hi allard
the problem that i have had with calibration is finding a carrier on an exact frequency
i live in the sticks so finding a local station is hard to come by
73 de terry gm4dso
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Re: Raduino_v1.12 released
Thanks for feedback Yiannis,
yes apparently 47K is too high a value in some cases.
Perhaps 10K is a safer value so that it works in all cases.
How is the generated CW carrier? Is it still a clean CW signal with no
clicks?
73 Allard PE1NWL
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On Tue, May 30, 2017 11:23, sv5fri@... wrote: Hi
I have faced the same problem with the CW modification and I replaced the
resistore 47K with 10K and output power is 5,5 watt on CW
Yiannis, SV5FRI
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Re: Raduino_v1.12 released
Hi
I have faced the same problem with the CW modification and I replaced the resistore 47K with 10K and output power is 5,5 watt on CW
Yiannis, SV5FRI
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Re: First contact today, slightly off frequency?
True for normal SSB operation.
But it can be fixed easily so why not.
For certain digital modes exact frequency display may be crucial.
73 Allard PE1NWL
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On Tue, May 30, 2017 10:15, terryhugheskirkcudbright via Groups.Io wrote: hi
does it actually matter that your frequency display is slightly off. As
long as you are transmitting and receiving on the same frequency as you
contact station then all is well.
terry gm4dso
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Joe , that is a good point about bleeding the caps down not that they are a high value .
I have been looking at other circuits where the LM386 is involved and they all ( except BITX40)
have from pin 5 of LM386?? Cap ( c112) first then 10 Ohm (r110) to ground ?????
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Re: First contact today, slightly off frequency?
hi
does it actually matter that your frequency display is slightly off. As long as you are transmitting and receiving on the same frequency as you contact station then all is well.
terry gm4dso
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W9ZIM
Allard PE1NWL
Ken T VK2HXX