MCW: what a waste of bandwidth, Mal will allert OFCOM !
73, Rik ON7YD - OR7T
At 00:42 7/01/2009, you wrote:
No problem! Use MCW! Has
been typical for 500 kHz.
73 DJ1ZB
"M0FMT" <[email protected]> schrieb:
- Hi Mal and LF
-
- I am disapointed in you Mal to be considering an envelope detector. A
true CW man, I would have thought, should only entertain the use of a
Cohere detector!
-
- Having played with them, I was surprised how well they work over a
range 136kc/s to 433mc/s (the extent of my power RF O/P) probably work
over a much lager range of frequencies but not tested by me.
-
-
http://home.earthlink.net/~lenyr/coherer.htm
-
- 73 pefmt
-
- --- On Tue, 6/1/09, mal hamilton
<[email protected]> wrote:
- From: mal hamilton <[email protected]>
- Subject: Re: LF: Razor blade RX
- To: [email protected]
- Date: Tuesday, 6 January, 2009, 9:21 PM
- Your own cct and ideas and the headphone construction.
Not info from the web.
- g3kev
-
- ----- Original Message -----
- From:
[email protected]
- To:
[email protected]
- Sent: Tuesday, January 06, 2009 7:58 PM
- Subject: Re: LF: Razor blade RX
- 310113517964 E bay too
-
- On Tue, 6 Jan 2009 18:00:45 -0000 "mal hamilton"
<[email protected]>
writes:
- Since I mentioned a Razor blade and fence wire RX a
while back I have had several requests for a circuit. To give others the
opportunity to submit a cct I will await replies. This method was used
successfully at Coldiz and other POW camps to receive BBC
broadcasts.
- Let us know how you would approach the subject. This is applicable to
MF/LF since the broadcasts at the time were receicved on these
bands.
- Build one and have a QSO using this RX
- g3kev
-
-
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