Re: [Discuss-gnuradio] RFX900 Failure

2010-02-26 Thread Matt Ettus
On 02/26/2010 10:05 AM, David Evans wrote: Hi, Thanks for the fast response. Yes the SAW filter is broken and putting a capacitor in as you suggested has brought the output power back up to normal. :-) Great! If you can survive without the filtering, you're actually better off now because yo

Re: [Discuss-gnuradio] RFX900 Failure

2010-02-26 Thread David Evans
Hi, Thanks for the fast response. Yes the SAW filter is broken and putting a capacitor in as you suggested has brought the output power back up to normal. :-) So, a couple of questions please, * Can the SAW be damaged by too much power from the PA? (I could find no info on the maximu

Re: [Discuss-gnuradio] RFX900 Failure

2010-02-24 Thread Matt Ettus
On 02/24/2010 09:42 AM, David Evans wrote: Hi all, Power output has significantly dropped, initially by 8dB, now much more. My first thoughts are that the PA has failed, so is it possible to break the transmitter... - by prolonged transmitting at high power (i.e. setting it to/near maximum)? -

Re: [Discuss-gnuradio] RFX900 Failure

2010-02-24 Thread Marcus D. Leech
On 02/24/2010 12:42 PM, David Evans wrote: > Hi all, > > Power output has significantly dropped, initially by 8dB, now much more. > > My first thoughts are that the PA has failed, so is it possible to > break the transmitter... > - by prolonged transmitting at high power (i.e. setting it to/near >

[Discuss-gnuradio] RFX900 Failure

2010-02-24 Thread David Evans
Hi all, Power output has significantly dropped, initially by 8dB, now much more. My first thoughts are that the PA has failed, so is it possible to break the transmitter... - by prolonged transmitting at high power (i.e. setting it to/near maximum)? - using a mismatched antenna? - mismatching