Thanks. Here is an update...
So far I have tried all the following together:
- Increasing the cable attenuation value to 50dB
- Cutting the receive gain setting to 0
- Using high-frequency cables
There is no apparent change, so I may have to cut the transmit power.
Jeremy
----- Original Message -----
From: "Matt Ettus" <[EMAIL PROTECTED]>
To: "Jeremy Chew" <[EMAIL PROTECTED]>
Cc: <Discuss-gnuradio@gnu.org>
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 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 antennas works much better.
Do you know what is wrong? And what should the cable attenuation be?
The cable attenuation needs to be at least 40 dB for safety. It
probably needs to be more for signal integrity. Have you adjusted the
receive gain downwards to compensate for the high signal levels?
Matt
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