[OZAPRS] Re: Bad Signal on 30m

[Larry]

Hi All

Well I think the duck is dead!  Seems like I may have been the guilty 
party.  It seems a program running on the gateway server has reset drive 
levels to the HF radio so that it was overdriving.  As I dont monitor my 
HF packets locally except when HF mobile (which hasnt been for a few 
months) I wasnt aware of the reset.  My station gates directly to the 
net so as Tony has correctly pointed out I was not aware it was not 
beaconing correctly - lesson here is to monitor your own transmissions 
from time to time!.  In any case the HF beacon has been turned off until 
I can complete some station reconfiguring which is currently going on.

Apologies to all animal lovers who are concerned for the duck's welfare.

Larry vk5ly

Tony Hunt wrote:
> Yep .. I gotta agree with Rod.. Its like a Duck dying or being strangled
> perhaps.. Ive heard this on and off for over 12 months. Usually when I am
> listening mobile its around on 30m. I tend not to listen to 30m via a
> speaker at home. I think its been raised before on this group some time back
> but was never solved.
> 
> Dont be fooled though.
> Just because you get a good decode on a station at times does not mean he is
> on the clear list so to speak.. HF mobile and RF feedback can be a funny
> thing. The whole thing can be a bunch of variables.
> 
> Think about it. Who of us would not start wondering about the functionality
> of our gear and start looking if it wasnt showing up on maps? Thats if we
> checked occasionally on the intenet or Findu etc.. Chances are this "dead
> duck" RF feedback candidate is sitting there now thinking its not him
> because he gets reasonable tracking on HF and others are seeing him ok. It
> just takes the occasional decode to lull us into a false sense of "it must
> be all working ok" .. If its a Home station then its probably connected to
> the internet feed and will allways show up on Findu even though its warbling
> dead ducks on air..
> 
> Occasionally I turn the radio on in the car with no antenna and listen to
> the packets comming from the HF station inside to see if it sounds ok on air
> and also Vice Versa. I even turn the power up beyond normal and see if it
> starts to goto RF feedback.
> 
> I rarely hear Larry 5LY-4 here because he is too far to work direct most of
> the time and too close via the E and F layers but I have not seen him listed
> as copied in VK2 VK4 as yet.. He may not be beaconing on HF presently
> either.
> 
> All I can say as a definite is thats its not 3MY-4 as the signal strengths
> are vastly different.
> Perhaps one trick would be to sit across the Internet feed and see if any HF
> home/Gate stations are beaconing around the time this warble goes to air.
> Thats assuming its a home station and assuming its beaconing at the same
> time on HF as the Net.
> 
> I would really love to know where this one is comming from so we can put a
> stop to this cruelty to ducks..
> 
> Tony Hunt VK5AH
> 
> --- Original Message ----- > Date: Sat, 14 Jun 2008 12:13:51 +1000
>> From: Ray Wells <vk2tv at exemail.com.au>
>> Subject: [OZAPRS] Bad Signal on 30m
>> To: VK / ZL APRS Users <ozaprs at aprs.net.au>
>> Message-ID: <4853295F.50409 at exemail.com.au>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> Hi All,
>>
>> A few days ago I was monitoring the 30m aprs frequency (I don't normally
>> have the volume turned up) and I heard a "crook" signal that won't
>> decode. I've heard the signal on suvsequent days and as recently as this
>> morning.
>>
>> The preamble (during TXD) sounds ok but then the signal sounds like
>> there is a hash (for want of a better decription) mixed with the tones.
>> RF feedback?
>>
>> It is not coming from the following stations ....
>> vk3my-4
>> vk7dik-4
>> vk4yro-4
>> vk4kmr-4
>>
>> The absence of any particular callsign in that list does not imply it is
>> your station, but it might be. I'll add to the list of callsigns as I
>> log them.
>>
>> Perhaps other 30m stations might like to have a listen.
>>
>> I'm sure the station responsible would like to know, because the beacons
>> are currently a waste of time.
>>
>> Ray vk2tv
>>
> 
> 
> _______________________________________________
> Ozaprs mailing list
> Ozaprs at aprs.net.au
> http://aprs.net.au/mailman/listinfo/ozaprs
> 
> 
> ------------------------------------------------------------------------
> 
> 
> No virus found in this incoming message.
> Checked by AVG. 
> Version: 8.0.100 / Virus Database: 270.3.0/1503 - Release Date: 6/14/2008 6:02 PM
_______________________________________________
Ozaprs mailing list
Ozaprs at aprs.net.au
http://aprs.net.au/mailman/listinfo/ozaprs