Try using the same number of channels at the site and see what you get. That should start you down the right path for troubleshooting.
Milt N3LTQ > All three amplifiers are connected in series. I shall correct my > statement: in the lab, we get 0dBm output on the last stage of amplifier. > However, when we are at the site, it max at -24dBm (it is -ve, sorry). > There is no difference in the configuration but number of channel. > > Best Regards, > > Chong Kwan Meng > > > > ----- Original Message ---- > From: Yahoo <[EMAIL PROTECTED]> > To: [email protected] > Sent: Thursday, 10 January 2008 2:45:53 > Subject: RE: [Repeater-Builder] Amplifier > > We would need more information for a proper response. Are you terminating > the unused ports in the LAB? If the amplifier is 22dBm then 24dBm would be > normal. > > Jeff > > > > > From: Repeater-Builder@ yahoogroups. com [mailto:Repeater- > [EMAIL PROTECTED] ups.com] On Behalf Of Kent Chong > Sent: Wednesday, January 09, 2008 9:47 PM > To: Repeater-Builder@ yahoogroups. com > Subject: [Repeater-Builder] Amplifier > > > Hello, > > Good day. A question on the amplifer specifications. We are using a few > amplifiers for our RX signal. The amplifier has 22dBm - 1dB compression > point. We the have 5~6 channels input into the amplifers, we could obtain > about 0dBm output power in the LAB. However, at the site, when we have > total 16 channels input into the amplifiers, the output power per channel > max. at 24dBm. > > Anybody could give some advices. > > Anybody could advise how could we get 0dBm output at the site? > > Best Regards, > > Chong Kwan Meng > > > > > > Real people. Real questions. Real answers. Share what you know. > > > > __________________________________________________________________ > Yahoo! Singapore Answers > Real people. Real questions. Real answers. Share what you know at > http://answers.yahoo.com.sg
