Re: [TenTec] Paragon question

[Bwana Bob <wb2vuf@qsl.net>]

I find that if I have a relay problem causing low receiver sensitivity, 
I can fix it by transmitting (into a dummy load) on the ham band for the 
relay in question. A few pushes of the tune button or a few strings of 
dits at full power cleans the relay contacts and restores proper operation.

You're right, though Scott, the long term fix is to change the relay.

			73,

			Bob WB2VUF

Scott Prather wrote:

> Paul-This problem is almost certainly related to the filter relays on the
> LPF board.  Early Paragons used reed relays to select the LPFs, but this was
> a pretty expensive approach.  As a result, in later units Ten-Tec started
> using inexpensive frame relays instead.  I had a Paragon that would do the
> same thing you describe only on the 80 M band, and lightly tapping the top
> of the cabinet near the PA heat sink would bring signals back to normal.
>
> The relays are available from Digikey, they only cost about $1.35 each.  If
> you decide to replace the defective relay, I highly recommend that you
> replace all 14, it's a lot of work to get the LPF board out and I can almost
> guarantee that another one will probably fail if you leave the other
> originals in place. However, check to see what type of relays you have
> first.  You wouldn't want to replace all 14 if your LPF board uses reed
> relays.
>
> Scott
> N7NB
>
> -----Original Message-----
> From: tentec-bounces@contesting.com
> [mailto:tentec-bounces@contesting.com]On Behalf Of
> ultrafixedwing@juno.com
> Sent: Tuesday, 01 February, 2005 17:00
> To: tentec@contesting.com
> Subject: [TenTec] Paragon question
>
>
>
> If I tune up from 6.000 mHz, when I hit 6.500 there is a click and the
> signal strength drops way, way off. I can hear signals very faint. I
> continue up to 10.500 and it clicks and signal strength kicks back up. Any
> ideas how to cure this?
> Thanks,
> Paul
> KS2S
>
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