Hello Jan-Martin The SPM-3 has a single xtal filter at the 650kHz 1st IF followed by a narrow LC filter at the 1.5kHz 2nd IF. The 1.5kHz filter is something like 100/120Hz wide at -6db. 73s Tracey SP
Hi Jan_Martin I've got a similar problem with my level meters, they all seem to output tones between 1000Hz and 1500Hz. I'm considering using a cheap "Voice Modulator" IC the HT8950 from Holtek on th
Hi Dave "Anyone" might be able to receive NDBs over a reasonable distance but like any other area of listening there are some who manage to hear things that most others don't. Perhaps you'd better gi
Hi Rich John Wilson did a comparison test in the Nov 2001 Short Wave Magazine between the RF Systems 520 and the Wellbrook Communications LFL1010 VLF loop antenna and the 520 was well beaten by the 1
Hi Mal There's a complete 1154 on ebay at the moment if you fancy splashing out! :-) http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=1502&item=3007576812&rd=1 Or you could have a word with w
Has anybody on the list used aluminium irrgation piping for a mast/antenna? I'd be grateful for any pointers if anyone has. It's not overly expensive secondhand and comes in 3", 4", 5" and 6" diamete
Or even better, http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=3025368877&category=1502 Tracey Thought it may be of interest to someone here: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=
I wonder if anyone on the list knows where I can purchase 500m rolls/drums of either RG58 or RG59 from in the UK? I've just picked up a brand new 500m roll of RG59 on ebay for the grand price of £6.5
There is a Wayne Kerr B601 RF Bridge 15kHz to 5MHz, on ebay at the moment with only 12hours left. It's currently sat at £10.50. http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=2549539049&categor
For anyone who is interested here are some 136kHz EWE/Flag dimensions from Floyd Koontz The top wire is 15ft above ground and the bottom wire is 5ft above ground the lengths 100ft - 350ft are for the
It's the magazine produced by the Longwave Club of America (LWCA) 73s Tracey What is the LOWDOWN? Bryan -- Original Message -- From: <[email protected]> To: <[email protected]> Sent: 17 Feb
Hello Dick I have an original W&G manual for the SPM-3. 73s Tracey Tracey -- Original Message -- From: [email protected] Dick Rollema To: [email protected] LF-Group Cc: PA3duk@muurkra
Mike A quick "google" for, earth rod suppliers uk, produced this URL which lists 12 suppliers. http://www.cjdirectory.com/product-2477326.html 73s Tracey Does anyone know of a UK source for earthing
Yes the space above all your property is a "free for all for telecommunications purposes" that means front, back and side gardens! :-) Flying Wire powers were granted to the Post Office early in the
