Free e-Book version of The ARRL Antenna Book
-
Many thanks to Alex (KR1ST), on Mastodon, who notes that the e-Book version
of The ARRL Antenna Book 25th Edition is free on the ARRL website. Simply
go t...
4 hours ago
Enjoyed muchly, just didn't explain the role(s) of the filter and its relationship to the BFO/Carrier Oscillator for Rx selectivity and cutting both carrier and unwanted sideband on Tx.
ReplyDelete1960s was likely too early for phasing (e.g. NZART/Break-In 'Tucker Tin').
Modern 'kits' e.g. BITX are still 'filter' rigs just like this.
FB and 73!
That was *remnant* carrier.
Delete