""Hi; thanks.
Do I gather that I use the 'sweep' function on the SG - with the 'baseline' of 470kHz? If so, to what extremes? (e.g. +/- 100kHz).
BW
Richard""
Sweep function for radios is only of any real use when used in conjunction with a 'scope and where the alignment instructions demand that a sweep generator be used, the sweep function plus 'scope is generally only needed for IF and discriminator alignment for FM, having said that most radio manufactures gave FM IF alignment instructions using spot frequency alignment as an alternative to using sweep alignment, by spot frequency we mean a fixed frequency ie: one that isn't swept in other words you can align the FM IF in most radios by using an ordinary AM signal generator set to the IF frequency, which in most cases will be 10.7MHz.
Sweep alignment at lower IF frequencies such as those around 460kHz is very rare, mainly the reserve of some old time communications receivers in order to obtain a specific pass band shape and width.
Lawrence.
Do I gather that I use the 'sweep' function on the SG - with the 'baseline' of 470kHz? If so, to what extremes? (e.g. +/- 100kHz).
BW
Richard""
Sweep function for radios is only of any real use when used in conjunction with a 'scope and where the alignment instructions demand that a sweep generator be used, the sweep function plus 'scope is generally only needed for IF and discriminator alignment for FM, having said that most radio manufactures gave FM IF alignment instructions using spot frequency alignment as an alternative to using sweep alignment, by spot frequency we mean a fixed frequency ie: one that isn't swept in other words you can align the FM IF in most radios by using an ordinary AM signal generator set to the IF frequency, which in most cases will be 10.7MHz.
Sweep alignment at lower IF frequencies such as those around 460kHz is very rare, mainly the reserve of some old time communications receivers in order to obtain a specific pass band shape and width.
Lawrence.
