I have never heard meteors as they flash by, but one cold, crisp night in the early 1960s the Fire Brigade (complete with rotating blue lights) called at the farm next door. I went outside to see wha
Walter, Would you send me the attachment direct please? Many thanks, 73 de John Rabson G3PAI I'll try this one again without the attachment. It didn't get through first time (too long? or was it the
Your water supplier should be able to tell you the hardness of the water. They are sending me the figures. I had in mind doing my own checks on the effectiveness of the softener. John
My ion-exchange resin water softener needs replacing. I am thinking of trying one of the electronic systems, but wonder if there are any LF QRM concerns (and how do I measure the hardness of the wate
-- Original Message -- From: <[email protected]> Now, I realize the traditional "etaoin" sequence may not in fact be the most common characters found in proper amateur QSOs. Does anyone have a corpus
May I contribute to the discussion? If you don't normally wear glasses, but are considering using them for IC work, I suggest you consult an optician for advice on the most appropriate form of vision
-- Original Message -- From: "Martin M0MGM" <[email protected]> thought that such projects are the cream of armature tradition. ...................................................................
... 4.5KHz cutoff filters that the EBU compliant broadcasters used. What was the specification of those filters? When I was involved in starting up University Radio Essex, a licensed station, in 197
Walter, I want to start with a Converter for rx. I have a home made modified NorCal 40A for the 40m band. Is it possible to made a converter for 136khz to 7,0 Mhz? For example my IC 706 are "free", w
Yes please. Could it be adapted for Loran blanking? Regards, John Rabson G3PAI ... If there is interest I am willing to translate the text into English and send text and circuit diagram by e-mail to
Hi, As people may be aware, LORAN is sometimes a problem for cave radio work. One of the things I am investigating is the possibility of using alternative low frequencies for our operations. Before I
Would it help to have the pinouts for the valves? If so, send me a list of types and I will see what I can do. 73 de G3PAI, John Rabson Dear LF Group, Lowfers I recently bought a WWII vintage LF and
Spectra claimed in the early days that PB will 95% understand QB code - the only problems I had in translation related to keywords being used as variable names; a practice allowed by QB but not PB. I
Over the weekend of 17th/18th August, in Ipswich dock, a restored light vessel will be the host to some special event stations. The organiser tells me that 136 kHz specialists would be very welcome.
Unfortunately, I can't make it. It's the time to Chase the Authors for the next copy of the CREG Journal. Regards, John Rabson (G3PAI) Editor Cave Radio and Electronics Journal
... What credit could I claim for a a signal on 73/136 khz swamping the band at hundreds of DB's over S9 Hmm..... What is he using for a power source? Taking S9 as 50uV in 50 ohm I get -103dBW. Assu
In fact, make it completely free format so no one can crash it. I've spent many a happy hour making the most bomb-proof user entry code then challenging people to make it fail. Then someone does som
