[TenTec] Corsair 560 alignment

[Lee WA3FIY]

The Corsair (and C II) does not have the "elevator" preselector tuning.  It uses bandpass 
filters for front end selectivity.  They can be aligned but it takes the proper equipment and 
knowledge to do so.  It is also possible to ruin the frequency response curve of the filter by 
improperly tweaking the inductors.

"Aligning" those would be my last resort and I do mean LAST.  I suggest checking with Ten-
Tec service for advice.

73,

-Lee-



On 4 Oct 2013 at 8:17, Rick - DJ0IP / NJ0IP wrote:

> Yeh, EVERYTHING.
> There are no shortcuts, Spencer.
> 
> The only way you can be sure that it is performing near specs is to
> align everything., starting at the front end and working your way
> through the radio.
> 
> It's quite easy if you have the right equipment for it.
> 
> Most often the cause of a poor sensitivity on those older rigs,
> especially if it seems to different from band to band is, someone who
> didn't know what they are doing (and didn't read the book) has
> mis-alligned the several (all?) of the permeability tuned coils in the
> elevator. To align that, you will need two signals, one at the bottom
> of the band and one at the top. You only need them one at a time, so
> it's even possible to use a QRP transceiver with an A and B vfo.
> 
> Let me know if you need more info on this.
> 
> 73
> Rick, DJ0IP
> 
> 
> -----Original Message-----
> From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of
> Spencer Sent: Thursday, October 03, 2013 7:00 PM To:
> tentec at contesting.com Subject: [TenTec] Corsair 560 alignment
> 
> I have a Corsair that was given to me. The rcvr sensitivity seems
> blah, some sigs on 20 and 30 meters, thats it Puts out full power. I
> plan to check things starting at the speaker working to the antenna.
> Are there any GOTGHA's I should look out for? I will use the rig for
> CW and maybe PSK in the future. Are there any of the narrow filters
> available other than new?
> 
> Spencer
> W1GAK
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