[Elecraft] K3 6m birdies

[Johnny Siu]

I got one at 28.13471Mhz and reduced it by moving the TMP cable between J84 and J85 of KRX3.  Moving the TMP cables does have effect on the birdies.
 
Just try to resit and change the positions of the TMP cables, you will get some improvements.

TNX & 73,


Johnny VR2XMC

從︰ Mike Rodgers <mikerodgerske5gbc at yahoo.com>
收件人︰ Robert Redmon <k5sm.bob at gmail.com>
副本(CC)︰ "elecraft at mailman.qth.net" <elecraft at mailman.qth.net>
傳送日期︰ 2011年07月7日 (週四) 6:04 AM
主題︰ Re: [Elecraft] [k3] 6m birdies

I have a birdie at 50.09465 cw  normal not rev on a cold k3 and the one at 14.186. The latter being weaker and neither adding to the s meter. My shack has no computers but a wal wart or two so I can confirm those two. 
Auto notch has no effect. 

I believe as Tom mentioned there is a method to remove them or that specific frequency they are on ( not sure which) but I havnt been bothered enough by them yet. 

73
Mike R

Sent from my spy ring

On Jul 6, 2011, at 12:44 PM, Robert Redmon <k5sm.bob at gmail.com> wrote:

> I also have a pretty strong (-120dbm) and annoying 6 meter birdie. It is when I am in cw mode and moves when I tune, intersecting with the passband at 50096 or so . It moves with VFO tuning, but at a much higher rate (viewing on the P3). When I have tuned 1 khz higher, it has moved almost seven khz higher. It also seems to drift a bit...unlike the stationary (internal) birdies that are rather weak and stable. I have cleaned up my cabling and tried to make sure all the boards and case bits were bonded properly, but those efforts have had no effect. I have noticed a similar birdie on 20 meters (ssb) around 14186 or so, but it moves opposite the direction of tuning. My efforts seem to have had no effect on them (including Sig Rmv). I have been told I will just have to live with them, and I can, but it is frustrating nonetheless.
> 
> Bob K5SM
> 
> On 7/6/2011 8:31 AM, Mike Rodgers wrote:
>> None of those 6m birdies here in Texas
>> 
>> 73
>> Mike R
>> 
>> Date: Mon, 04 Jul 2011 13:45:11 -0400
>> From: John Ragle<tpcj1r03 at crocker.com>
>> Subject: Re: [Elecraft] Zipper Noise and Birdies on 6M -- FIXED!
>> To: elecraft at mailman.qth.net
>> Message-ID:<4E11FC27.7090506 at crocker.com>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>> 
>> Allen...
>> 
>>    I have these same birdies (at least I suppose they're the same) and
>> I suspect that all K3 have them. The most annoying ones are where the CW
>> action usually occurs (50.09430, 20 dB above noise floor) and a number
>> of minor ones around 50.098 (3-5 dB above the noise floor), as well as
>> several major ones up where the SSB action occurs: 50.21050, 50.24055,
>> etc. which are all 20+ dB above the noise floor. These are not
>> "external" blips (not computer, not router, etc.) as they are present
>> when nothing else is on, and they are present when the antenna is
>> disconnected.
>> 
>>    I "treat" them by ignoring them. They are sharp, stable, and
>> unmodulated. My ear can differentiate between them and real signals
>> without any problem. They are "features" for "calibration.".. ;>) Every
>> modern rig I have ever owned has had similar warts.
>> 
>> John Ragle -- W1ZI
>> 
>> 73
>> Mike R
>> 
>> 
>> Sent from my spy ring
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