Re: [Discuss-gnuradio] RFX400 Antenna Connection

2007-03-07 Thread David Scaperoth
- Original Message - From: "Matt Ettus" <[EMAIL PROTECTED]> To: "Jeremy Chew" <[EMAIL PROTECTED]> Cc: Sent: Tuesday, March 06, 2007 1:40 AM Subject: Re: [Discuss-gnuradio] RFX400 Antenna Connection Jeremy Chew wrote: Hi, I am trying to eliminate channel err

Re: [Discuss-gnuradio] RFX400 Antenna Connection

2007-03-07 Thread Jeremy Chew
Message - From: "Matt Ettus" <[EMAIL PROTECTED]> To: "Jeremy Chew" <[EMAIL PROTECTED]> Cc: Sent: Tuesday, March 06, 2007 1:40 AM Subject: Re: [Discuss-gnuradio] RFX400 Antenna Connection Jeremy Chew wrote: Hi, I am trying to eliminate channel error by using

Re: [Discuss-gnuradio] RFX400 Antenna Connection

2007-03-05 Thread Matt Ettus
Jeremy Chew wrote: Hi, I am trying to eliminate channel error by using a cable to connect two RFX400s together. The strange thing is that nothing useful seems to get through when the radios are connected by cable. I have tried attenuation in the range from 0 to 40dB and with several cables to

Re: [Discuss-gnuradio] RFX400 Antenna Connection

2007-03-05 Thread David Scaperoth
what is the receive PGA set to? I find it works best at the midpoint (35 or so). you may want to simply scale back your transmit power with a multiplier block: gr.multiply_const_cc(0.1) I don't know exactly what the correct amount of attenuation is, but 40dB sounds like enough (you'll ha

[Discuss-gnuradio] RFX400 Antenna Connection

2007-03-05 Thread Jeremy Chew
Hi, I am trying to eliminate channel error by using a cable to connect two RFX400s together. The strange thing is that nothing useful seems to get through when the radios are connected by cable. I have tried attenuation in the range from 0 to 40dB and with several cables to no avail. Using ant