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which receiver board is the latest?
Posted: Sun Jan 03, 2010 10:38 am
by wibblywobbly
I have 3 receiver boards in my parts bin.
2 have a black component that is marked CFWM 455E.
1 has the same component but is marked LTM 455E.
Does anyone know which is the latest spec, or whether they are all ok to use with an RX18?
Re: which receiver board is the latest?
Posted: Sun Jan 03, 2010 11:00 am
by jrc
hi Rob, they are just ceramic filters doing the same job so both are ok
Ross
Re: which receiver board is the latest?
Posted: Sun Jan 03, 2010 7:28 pm
by wibblywobbly
Cheers Ross, I picked one at random, and it does the job, so all's well.
Re: which receiver board is the latest?
Posted: Mon Jan 04, 2010 6:27 pm
by xrad
455e's are generally bandpass filters. The letters after the number indicate the fq of that particular filter (ex: E may mean 455khz while f may mean 500khz..manufacturer dependent?) Special connections or additional elements in the filter as well as manufacturer can be represented by the preceeding letters..