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Re: How to pronounce "BITX"?
¿ªÔÆÌåÓýAll the Americans I know ?(only about 10) that know the bitx say it as bit ex. All west coasters except two from Nevada.?I don't care how it is said as long as folks buy 'em and get 'em on the air! Jonathan? -------- Original message --------
From: Ashhar Farhan <farhanbox@...> Date: 05/30/2017 12:38 PM (GMT-08:00) To: [email protected] Subject: Re: [BITX20] How to pronounce "BITX"? americans have taken on saying 'bee-tex', while some others , notably the english and their indian cousins, say 'by-tex'. we havent had any name nazis here yet. choose your own! - f On Wed, May 31, 2017 at 12:31 AM, John <easydogxray@...> wrote:
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Re: TFT/VFO Board from FDIM talk
#w8tee
Hi Jack,
Is there a link for the source file for TFT/VFO Board? I have been digging, but could not find one? I would like to start taking a look at the code while I am waiting for my pieces parts. I have pulled the lib links from the doc and I am starting to get the IDE setup. Thanks, Kevin - KB0VHA |
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Re: How to pronounce "BITX"?
This American has taken to saying "bit-X"
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So guess I'd choose Jack as my Name-Nazi. On Tue, May 30, 2017 at 12:49 pm, Jack Purdum wrote: #############################
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Re: Raduino_v1.13 with scan function released
Hello Allard,
A BIG thanks for your work on making the raduino software more functional and user friendly. I use my bitx40 for CW only and before your sketch supprted cw, I used the capacitor mod by Jerry KE7ER and it worked great. But after changing the keying as you described on github I now send 1 kHz higher then 1 receive. So after calling CQ I can not receive the other station replying to my cq... I tried different settings as calibrating and rit , but this makes no difference.? Have you heard from other user who also report this issue? I am stuck on how to solve this for now .... Best Regards, Lex - PA1LEX |
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Re: How to pronounce "BITX"?
John
I've had a reply from Radio Royalty! Thank you so much for responding to me. It's By-Tex for me from now on. Thank you too for such a brilliant design which has brought inexpensive HF operation to so many. I'm helping a friend at our local club, the South Nottinghamshire Amateur Radio Club (SNARC) in what will be his first HF construction project. Of course, I have to build on too! We're building modules on 2 inch/50mm squares of copper-clad board. We're right at the start of the project, and I'm working on the AF amplifier board first. I just came to the computer to look up the details of some relays I've found for the Tx/Rx changeover, and saw your reply.? Thanks again for your reply and all you've given to this great hobby! Maybe we'll meet on the air sometime. Vy 73, John G4EDX/G4JBC (John's Building Club) On 30 May 2017 at 20:38, Ashhar Farhan <farhanbox@...> wrote:
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Re: How to pronounce "BITX"?
Vince Vielhaber
I pronounce it the same as Jack does.
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Vince - patiently awaiting DHL with my Bitx40 - KA8CSH. On 05/30/2017 03:49 PM, Jack Purdum via Groups.Io wrote:
I like "bit-X" --
Michigan VHF Corp. |
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Re: How to pronounce "BITX"?
Jack Purdum
I like "bit-X" Your friendly Name-Nazi From: Ashhar Farhan <farhanbox@...> To: [email protected] Sent: Tuesday, May 30, 2017 3:38 PM Subject: Re: [BITX20] How to pronounce "BITX"? americans have taken on saying 'bee-tex', while some others , notably the english and their indian cousins, say 'by-tex'. we havent had any name nazis here yet. choose your own! - f On Wed, May 31, 2017 at 12:31 AM, John <easydogxray@...> wrote:
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Re: How to pronounce "BITX"?
americans have taken on saying 'bee-tex', while some others , notably the english and their indian cousins, say 'by-tex'. we havent had any name nazis here yet. choose your own! - f On Wed, May 31, 2017 at 12:31 AM, John <easydogxray@...> wrote:
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Re: First contact today, slightly off frequency?
Correction: ?The SW Broadcasters are assigned frequencies on 5khz increments. ?But a stock Bitx40 should still be accurate enough to know which 5khz step the broadcaster is on.
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On Tue, May 30, 2017 at 11:28 am, Jerry Gaffke wrote:
as broadcasters are almost always on 10khz increments. ? |
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Re: First contact today, slightly off frequency?
I sincerely doubt the crystal used on an $3 ebay Pixie would be any more accurate than the crystals used on the Bix40.?
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Allard's suggestion of calibrating to one of the SW AM Broadcast stations is a good one, as broadcasters are almost always on 10khz increments. ?All AM SW Broadcasters should be above 7.2mhz, and all their images should be below 7.2mhz, ?avoid using those images. ?The tuning knob will tune through an image 4 times as fast as a normal signal since it is received using the 4'th harmonic of the VFO. If we assume the 25mhz crystal in the Raduino and the 12mhz BFO crystal on the Bitx40 main board are both correct within 100 parts per million, we might have as much as 200ppm error on a stock Bitx40. ? ?200 ppm at 7mhz is 200*7mhz/one-million = 1400 hz. ? Most rigs should start out much closer than that, so will be easy to tell which 10khz increment some SW Broadcaster is on.? From post 25393: ? "In addition to the 7.2mhz birdie, we also have a problem with images from SW broadcasters getting through due to the 4'th harmonic of the VFO mixing with the incoming signal. ?For example, when receiving at 7.1mhz, the vfo is at 12-7.1 = 4.9mhz, the 4'th harmonic of which is 4.9*4 = 19.6 mhz. ?That 19.6 mhz is present in the diode ring mixer, and mixes with a signal at 7.6 mhz to create a 12mhz if signal." Jerry, KE7ER On Tue, May 30, 2017 at 10:39 am, Guy N7BIR wrote:
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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Re: Apology
#w8tee
Jack Purdum
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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Re: Apology
#w8tee
Vince Vielhaber
Why not just send it to their registered paypal mailing address?
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Vince. On 05/30/2017 09:23 AM, Jack Purdum via Groups.Io wrote:
All: --
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? |
PA1LEX
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