Re: [Elecraft] OT: USB and LSB - How we got there

2018-02-15 Thread Fred Jensen
nal Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft- boun...@mailman.qth.net] On Behalf Of Ian White Sent: 15 February 2018 10:11 To: 'Alan'; elecraft@mailman.qth.net Subject: Re: [Elecraft] OT: USB and LSB - How we got there In 2003 I researched the subject for my RSGB Q

Re: [Elecraft] OT: USB and LSB - How we got there

2018-02-15 Thread Mike Harris
Members only. Regards, Mike VP8NO On 15/02/2018 14:37, donov...@starpower.net wrote: The 5.2 MHz SSB exciter construction article that Ian referred to in January 1949 QST is here: http://p1k.arrl.org/pubs_archive/29327 73 Frank W3LPL _

Re: [Elecraft] OT: USB and LSB - How we got there

2018-02-15 Thread donovanf
Subject: Re: [Elecraft] OT: USB and LSB - How we got there Thanks Ian, very interesting reading! http://p1k.arrl.org/pubs_archive/28966 73 Frank W3LPL - Original Message - From: "Ian White" To: elecraft@mailman.qth.net Sent: Thursday, February 15, 2018 11:27:15 A

Re: [Elecraft] OT: USB and LSB - How we got there

2018-02-15 Thread donovanf
Thanks Ian, very interesting reading! http://p1k.arrl.org/pubs_archive/28966 73 Frank W3LPL - Original Message - From: "Ian White" To: elecraft@mailman.qth.net Sent: Thursday, February 15, 2018 11:27:15 AM Subject: Re: [Elecraft] OT: USB and LSB - How we

Re: [Elecraft] OT: USB and LSB - How we got there

2018-02-15 Thread Ian White
m Ian GM3SEK >-Original Message- >From: elecraft-boun...@mailman.qth.net [mailto:elecraft- >boun...@mailman.qth.net] On Behalf Of Ian White >Sent: 15 February 2018 10:11 >To: 'Alan'; elecraft@mailman.qth.net >Subject: Re: [Elecraft] OT: USB and LSB - How we got th

Re: [Elecraft] OT: USB and LSB - How we got there

2018-02-15 Thread Ian White
In 2003 I researched the subject for my RSGB Q&A column, 'In Practice', and was fortunate to be in contact with some amateurs who were personally involved in the decision to switch sidebands at 10MHz. This decision was made in April 1952 and eventually became an IARU standard - but its origins are

Re: [Elecraft] OT: USB and LSB - How we got there

2018-02-14 Thread donovanf
orner). http://p1k.arrl.org/pubs_archive/29337 73 Frank W3LPL - Original Message - From: wb6r...@mac.com To: "Elecraft" Sent: Wednesday, February 14, 2018 11:15:54 PM Subject: Re: [Elecraft] OT: USB and LSB - How we got there GM3SEK, Ian White's pos

Re: [Elecraft] OT: USB and LSB - How we got there

2018-02-14 Thread wb6rse1
GM3SEK, Ian White's posting here in 2008 is much more illuminating. > https://marc.info/?l=elecraft&m=121161637904298&w=2 > Steve WB6RSE On Feb 14, 2018, at 12:08 PM, Ken G Kopp wrote: Here's a URL to a website with lots of information:

Re: [Elecraft] OT: USB and LSB - How we got there

2018-02-14 Thread Don Wilhelm
Ken and all, BUT, that information is incorrect. The sidebands will NOT invert with a 9 MHz IF and a 5 MHz VFO. A little simple math should convince you. Assume a 9.000 MHz IF and a 5.200 MHz VFO and a modulating frequency of 1kHz. 9.000 + 5.200 = 14.200 for the carrier frequency 9.001 + 5

Re: [Elecraft] OT: USB and LSB - How we got there

2018-02-14 Thread Alan
It amazes me that there is still so much confusion and misinformation about something so simple. There are two ways to get 80 meters (3.5-4 MHz) and 20 meters (14-14.5 MHz) using a single VFO and IF: 9 MHz IF, 5-5.5 MHz VFO: - Sideband direction is the same on both bands - VFO tuning di

[Elecraft] OT: USB and LSB - How we got there

2018-02-14 Thread Ken G Kopp
Here's a URL to a website with lots of information: http://www.ac6v.com/73.htm#LSB Or, search "BC-458 command set transmitter" and "Central Electronics 10A" with your browser. 73! Ken Kopp - K0PP __ Elecraft mailing list Home: http://m