[time-nuts] Spectracom 8170 Receiver Trouble Requesting help please

[paul swed]

Paul
I do not own one of these but perhaps soon.
Many of the vlf receivers required a pre amplified antenna. Typically a
loop. Not saying that yours does. But if it were missing that could make
things difficult.
Paul WB8TSL near Boston

On Sat, May 28, 2011 at 2:38 PM, Paul A. Cianciolo <paulc at snet.net> wrote:

> Hello Folks,
>
>
>
> This is my first post to the list and I appreciate being able to do so.
>
>
>
> I recently acquired a Spectracom  8170 WWVB receiver.
>
> The manual is available at the Spec. site and I have downloaded it, and
> been
> reading through it.
>
>
>
> One of the problems is the lock light comes on almost immediately when the
> RX is powered up with no antenna connected.
>
> Also there is a purple wire on the A2 board, pin 6 of J5 that has been
> fitted so it can be removed and reconnected from J5 easily.
>
> This appears to be the synchronous AGC line back to the preamp board.
>
>
>
> In addition R30 on the A2 board has been adjusted.  I think this is carrier
> null.
>
> Power supplies are all within .1 volts of 12vdc -12vdc and 5 VDC.
>
>
>
> Looking for some direction from owners of this RX.
>
>
>
> Thank you
>
>
>
> Paul A. Cianciolo
>
> W1VLF
>
> http://www.rescueelectronics.com/
>
> Our business computer network is  powered exclusively by solar and wind
> power.
>
> Converting Photons to Electrons for over 20 years
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>
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