[RFI] Utility coming tomorrow to chase RFI

[Dale J.]

Paul,

I got memories saved for 75 meters SSB lower, a couple of freq on 2 m. FM, 300 mhz AM (line noise tracking) also 500 Mhz AM, then BCB and 160 m.  

It is quite a versatile little receiver, but a PITA to use as are all of Alinco products that I've had experience with.  

I found the gain setting a little confusing, 1 being the highest gain and 10 the lowest.  The sub rx is only good for 144 and 440 with overlap into the aircraft band and above each of those bands.  The manual gives the freq range for the sub rx.  I don't use it, enough to handle just with the main rx.

Be sure you are in AM or SSB mode.  If the radio menu is set for auto detect mode then it might be automatically going into FM mode for a VHF frequency you select.  I have mine set for manual mode selection so I can manually set the mode for any frequency.  

The main rx is good from around 50 kHz to and beyond 1.2 Ghz.  

I just went though all the menu settings and didn't find anything that refers to a noise blanker or noise reduction.  Maybe it's in but not user configurable.  I'll take mine on my daily walk today and see if I can hear some power poles with it.  It's been pretty quiet around here for line noise, my only interference is the plasma next door.  

I'll let you know what I find today.  I usually walk 4 to 5 miles a day and past a lot of overhead wiring and poles.   

73
Dale, k9vuj



On 08, Jun 2014, at 6:37, N1BUG <paul at n1bug.com> wrote:

> Thanks Dale. I went through all of those settings with my DJ-X11T but did not notice any significant improvement. Maybe my unit was defective in some way.
> 
> I found it to be a reasonably competent receiver in all modes, but with respect to power line noise it was almost as if it had some noise blanker or clipping action going on.
> 
> 73,
> Paul, N1BUG
> 
> 
> On 06/07/2014 08:04 AM, Dale J. wrote:
>> I've got a DJ-X11 and there are a couple things to check.  ATT on
>> or what setting, low high or off; Audio, high cut on or off;
>> Gain 1 thu 10.
>> 
>> It's a good receiver and covers everything.  I use mine up on 350
>> Mhz AM mode. I can also go to 75 meters where the plasma gives me
>> the most trouble and look around.
>> 
>> Dale, k9vuj