Return to KLUBNL.PL main page

rsgb_lf_group
[Top] [All Lists]

Re: LF: Coherent BPSK on LF using EbNaut

To: [email protected]
Subject: Re: LF: Coherent BPSK on LF using EbNaut
From: IZ7SLZ <[email protected]>
Date: Sat, 24 Oct 2015 00:57:08 +0200
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type; bh=rUGMe7ZFIQ7ad7myfVi0PXCjQYJxK54rrhIzXXJmkRY=; b=TVDcnPj1qTDchDA1ZQAeWGPCwcQGFALCzh/Cm30Ux6lvGToiIRP5+RnVXEu0g2aKnD +aaIBkrYX18MYpIf/tJjtFiM4oA6+BpjVw8QHkbLHA320uL8uz0piN8FnQZTVe2HW9bX YYXNIyapEByA7UFupWQa4fBuIOwoDDgn44rW5HhGQc/Wf3bRA/UG2D//utbjvRlqw98Q vBYO4MnaFmc5dNr9dy/so7sdak21tdZWKmSJfaBDGRu52TFsDY1GuBiVyc0jfbgjg5d9 Ub6rL2M7JmxwaOtJip/H30FvoZCm0HL4oeHVL02HSPH7uNfvo+igmjcVESKrRdapl0fB ONfA==
In-reply-to: <[email protected]>
References: <[email protected]> <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
User-agent: Mozilla/5.0 (Windows NT 5.1; rv:17.0) Gecko/20130620 Thunderbird/17.0.7
In fact, impedance transformer was by-passed also.
Now it is fixed. I have driver stage to the variometer through the transformer. Neon lamp lights up more !

Please check next transmission

Thank you.

Dom.




On 10/24/2015 12:46 AM, IZ7SLZ wrote:
No Markus, i'm not sure now !

The power reduction that i'm now using is the built-in circuit of the PA (ex-marine reserve transmitter): one relais takes the output of the driver stage and
brings it directly to variometer.

To match my antenna it is necessary one transformer before the variometer.  I'm now checking if there is some impedance mis-matching when final stage is by-passed.
So, work in progress.

Domenico



<Prev in Thread] Current Thread [Next in Thread>