[Lowfer] (wm remote rx)

[N8OOU]

Mike - TTS,  Thanks for the feedback on rx levels.  I haven't said much 
about what I'm working on there because I'm am still getting the kinks 
worked out.  I plan to put a raspberry Pi there with an RTL-SDR and up 
converter. That setup will be using direct signal strength numbers, no argo.

For the time being, while I work on the Pi, I put the IC-706 in there 
with Argo. The antenna is a 1 meter square, 8 turn loop with a preamp. 
The 706 is soooooo deaf at 185, that I don't have an audible copy of the 
Wm beacon. Also you can't turn the AGC off on it, but I do have the rf 
gain turned down some. At least it is a stable receiver.  My tests 
yesterday showed I could see 5dB reductions in the drive level down to 
.6 watts input power. The next drop was not enough to drive the P.A.

Mike - OOU

73   de   N8OOU - Mike Meek

On 02/09/2015 10:27 AM, wa3tts wrote:
>
> Mike: You may need some attenuation on the remote rx input as well...my guess is a rx level around minus 40 in argo would greatly assist in the linearity of results as well as having agc off on both rx and argo....
>
> 73, Mike wa3tts
>
>
>
> Sent from Samsung tablet.
>
>
> -------- Original message --------
> From: N8OOU <n8oou at meekfarm.us>
> Date: 02/09/2015  10:43 AM  (GMT-05:00)
> To: "Discussion of the Lowfer (US, European, &amp;	UK) and MedFer bands" <lowfer at mailman.qth.net>
> Subject: Re: [Lowfer] DK7FC WSPR-15
>
> Garry, yesterday, I was testing my remote receiver which is located
> about 5 miles away.  Two tests took about a half hour each around 17:xx
> and 22:xx utc.  I put an attenuator box in the coax feed to the P.A.
> which dropped the drive level. I was documenting the P.A. input V. / A.
> while getting captures from the remote.
>
> This morning I see from the remote capture, that my signal looks about
> the same as when I had 15 dB of attenuation in the test yesterday. I
> left the attenuator inline overnight, but with no reduction of power.
> I'll take it out of line (15:35 utc) and see if my next capture at 15:58
> utc comes back up.
>
> The only other change is the temps and ground thaw yesterday. Today we
> are getting a little colder again. For the next few days we are going
> above 32 daytime and below at night.  I don't expect the ground to freeze.
>
> Mike - OOU
>
>
> 73   de   N8OOU - Mike Meek
>
> On 02/09/2015 08:38 AM, Garry Hess wrote:
>> Mike, I looked too but nothing noted here other than a constant weak
>> spur practically on top of DK7FC's frequency. Interesting that it's
>> present in your capture too so it must not be local. As mentioned before
>> I'm not seeing RTTY from HGA22 and DCF39 like last year when DK7FC did
>> decode here.
>>
>> Incidentally, lowfer WM is not currently visible here, after a few days
>> of very strong signals. EAR, MLS, and MP are coming in fine so think WM
>> has issues again.
> ______________________________________________________________
> Lowfer mailing list
> Home: http://mailman.qth.net/mailman/listinfo/lowfer
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Lowfer at mailman.qth.net
> Post must be less than 50KB total for message plus attachment!
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> ______________________________________________________________
> Lowfer mailing list
> Home: http://mailman.qth.net/mailman/listinfo/lowfer
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Lowfer at mailman.qth.net
> Post must be less than 50KB total for message plus attachment!
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>