If you need the compact footprint go for the Q2220E. If size is not an issue, I highly recommend the Q202 or Q201, especially for high power operation.
Another good option, especially for a 600Khz split, is a Q2330E, 6 cavity. Stay away from the "compact" duplexers sinclair makes. I use two older style Q202 duplexers in VHF service at about 75 watts. Very low loss, and good isolation. Additional bandpass cavities always provide more isolation (A Q201 is a Q202 with a single bandpass cavity on each of the TX and RX legs). They are also very simple to tune. To be honest, I butchered my Q2220E after poor performance at 75 watts / 600 khz and turned it into a very good 220Mhz duplexer. http://www.irlp.net/duplexer/ Dave Cameron VE7LTD --- In [email protected], Azam <[EMAIL PROTECTED]> wrote: > > > > > Hi, > > > I need advise and recommendation from any of you repeater guru's here and > help me to choose between this two filter. Sinclair Q202GR or Q2220E? > > Thanks > > Azam >
