[time-nuts] WWVB BPSK Receiver Project? (fwd)
Charles P. Steinmetz
charles_steinmetz at lavabit.com
Sat Mar 17 16:01:36 UTC 2012
gary wrote:
>OK, assuming type 61, it is 0.1%/deg C.
IME, Type 78 is the usual choice for resonant antennas below 200 kHz
(tempco of initial permeability = 1.0%/deg C). I have seen Type 33
used for broadband LF/MF antennas (tempco of initial permeability =
0.1%/deg C). Type 61 is generally not used below 200 kHz.
Best regards,
Charles
More information about the time-nuts
mailing list