[TenTec] Jupiter intermittent receive

[Stan Gammons]

I'll set it aside and look at it later. I replaced all of the relays, except for the reed relay, on the filter board. I seem to recall seeing something about the reed relay could cause this but I don't see how. It looks like it's only used for transmit. I may try replacing the connectors which connect the filter board and the RF board next.


73

Stan
KM4HQE


On April 4, 2017 8:24:49 AM CDT, Dukes HiFi <dukeshifi at comcast.net> wrote:
>Before you put it out to pasture, send it to me and I can have a look
>at it.
>
>Gary
>
>W0DVN
>
>
>> On Apr 4, 2017, at 8:02 AM, Stan Gammons <s_gammons at charter.net>
>wrote:
>> 
>> Hi Lars,
>> 
>> I doubt it's a bad connection between the radio and antenna. I have a
>Drake TR7 which works fine when I swap the coax from the Jupiter to the
>Drake.  Maybe it's time to put the Jupiter out to pasture and stick
>with my TR7's.
>> 
>> 
>> 73
>> 
>> Stan
>> KM4HQE
>> 
>> 
>> On April 3, 2017 9:56:34 PM CDT, larse at ardmore.net wrote:
>>> Stan
>>> 
>>> Maybe this will help.
>>> 
>>> I had a very similar if not the same problem with my Jupiter and it
>>> turned 
>>> out to be the coax jumper from the Jupiter to my MFJ RF Feedthru
>Window
>>> 
>>> Panel.
>>> 
>>> It took a while to troubleshoot this.  I carefully checked the
>antenna
>>> (trap 
>>> vertical), the balun mounted at the base of the antenna, the coax
>run
>>> from 
>>> house to the balun and none of this appeared to be the problem.
>>> 
>>> After bypassing the Window Panel by connecting the Jupiter directly
>to
>>> the 
>>> coax run from the antenna the problem went away.
>>> 
>>> The coax connectors on the window panel appeared to be ok so I
>bought a
>>> new 
>>> coax jumper to connect the Jupiter to the window panel and from that
>>> point 
>>> on I have not had any problems.
>>> 
>>> 73
>>> Lars
>>> KA4U
>>> 
>>> -----Original Message----- 
>>> From: Stan Gammons
>>> Sent: Monday, April 3, 2017 8:56 PM
>>> To: tentec at contesting.com
>>> Subject: [TenTec] Jupiter intermittent receive
>>> 
>>> Hi everyone,
>>> 
>>> I'm new to the list and I have a problem with a Jupiter that I hope
>>> someone here can help with.  The Jupiter I have has developed an
>>> intermittent receive problem. At times it will receive Ok, then the
>>> signal drops like the attenuator was turned on.  I first thought it
>was
>>> a bad connection on the connectors which connect the filter board
>and
>>> the RF board, but that doesn't seem to be the case. Anyone seen this
>>> before or know of any common receive problems with the Jupiter?
>>> 
>>> 
>>> 73
>>> 
>>> Stan
>>> KM4HQE
>>> 
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