Cheep Service Monitor - Take a receiver and an oscilloscope and calibrate the scope to measure transmitter deviation. Then use an inexpensive frequency counter. For receiver testing find a surplus generator and use it with the counter and home made deviation meter (receiver / scope combination). Filter / cavity duplexer tuning will not be as easy, but it can be done. Better yet if the receiver has a discriminator zero output for freq setting.
Steve NU5D On 4/21/07, Jack Taylor <[EMAIL PROTECTED]> wrote:
Along with a custom built repeater project, how about a custom built basic service monitor? The $1500 and up used/new service monitors are a necessity for those in the business but for those who only have a need to tune an occasional radio, a less expensive tool would be nice. Any suggestions? 73 de Jack - N7OO
-- Ham Radio Spoken Here.....NU5D Nickel Under Five Dollars
