[TenTec] Model 540/544 Question

[Mike Hyder -N4NT-]

But on reflection, with an SSB signal, you'd just hear one or the other 
sidebands but only the bottom 1.2 kHz of the audio spectrum would fall 
within the 2.4 kHz filter centered on 9.0 MHz. With CW, you'd hear tones on 
both sides of zero beat for twice the QRM.

----- Original Message ----- 
From: "Mike Hyder -N4NT-" <Mike_N4NT at charter.net>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Monday, November 19, 2012 10:15
Subject: Re: [TenTec] Model 540/544 Question


> If the IF's center frequency is 9.0 MHz and your filter was centered at 
> 9.0 MHz, then you would hear the bottom half of the audio from both 
> sidebands at the same time, I'd think. If you wanted to work SSB, I'd 
> think the 1.700 kHz offset would be about right.
>
> Smarter minds than I always find fault with my logic so stand by.
>
> 73, Mike N4NT
>
> ----- Original Message ----- 
> From: "N6QW" <n6qw at jessystems.com>
> To: "TenTec Users" <tentec at contesting.com>
> Sent: Sunday, November 18, 2012 11:44
> Subject: [TenTec] Model 540/544 Question
>
>
>> What is the exact frequency of the 8 pole crystal filter used in these 
>> radios? While it is described as 9.0 MHz the service data seems to 
>> indicate the center frequency is around 9001.700 KHz.
>>
>> Thanks
>> Pete N6QW