I once had a client who wanted a text-only HTML link running over a telex line at 50 Baud. Code conversion to and from a 7 1/2 bit format was not a problem, but the system suffered severely from time
Petr, In the 1960s, STC (Standard Telephones and Cables) was part of ITT (International Telephone and Telegraph Corporation) so the two bottles are probably electrically similar. I never worked in Va
High LF, The Texas electricity grid used to be isolated from the rest of the US. Is this still the case? 73 John F5VLF Attachment: signature.asc Description: Message signed with OpenPGP using GPGMail
Many thanks to those who posted recordings of the transmission. Seasons greetings, John F5VLF [email protected] Researching history of RABSON, BLACKSHAW, GAUNTLETT, VERLANDER and ROBSONNE
Andy, G4JNT, had a piece in CREGJ in 2012 about assessing SNR for voice, CW and single tones. See http://bcra.org.uk/pub/cregj/index.html?j=78. John F5LVF [email protected] Researching history
I thought PC meant Philosophically Challenged. John F5VLF [email protected] Researching history of RABSON, BLACKSHAW, GAUNTLETT, VERLANDER and ROBSONNE
A day or two ago, The big boss of French public radio was being questioned about the future of broadcasting in France. It seems that serious consideration is being given to discontinuing transmission
Laurence, I wish to associate my condolences with yours, particularly in respect of the firefighters who answered the shout but did not return (and their families). John F5VLF [email protected]
Not just San Francisco. One of my mentors used to tell of calling an Alaskan coast station as he was about to enter harbour, and being answered by Wellington Harbour Radio. John F5VLF/G3PAI john.rab
It all looks great. I wish my wiring were that good. Do keep a proper record of the uses you put various colours to. I remember a QST cartoon with the caption That cant be B+. It's a black wire. 73 J
Although there is no formal archive for this, I (and possibly many other people) have kept copies of interesting emails. Checking my mail boxes I find my system reports about 40,000 messages preserve
DJ8WXs page referred to below is reported by my system to be an attack page. John F5VLF [email protected] Researching history of RABSON, BLACKSHAW, GAUNTLETT, VERLANDER and ROBSONNE
I have never found the need for this sort of thing, nor for thiotimoline, but manys the time when building an antenna farm when I wished for a Clamp, Antigravity, Large. Unfortunately, these were nev
Chris, Make sure that your radio earth and your mains supply earth are properly isolated from one another, preferably with a double wound RF transformer. Until I did this, I found that the RCD equiva
Hello Chris, I use the term isolation to emphasise the fact that it does provide galvanic isolation, which an auto-transformer does not. The transformer here is a ferrite ring type N90AB from Maplin,
