I haven't checked. am going to look at it tomorrow.
On 7/29/2022 8:10 PM, gudguyham@aol.com wrote:
Once again the relay is engaging in operate because the ptt line is
shorted or closed by radio. Do you see plate idle current?
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On Friday, July 29, 2022, 6:12 PM, Ed Swiderski, KU4BP
<ku4bp@triad.rr.com> wrote:
Forgive my ignorance but I thought it was to put the amp in circuit.
Which it does because power is output. Unkeying the amp and the
receive
is weak. When the op switch is on.
On 7/29/2022 5:13 PM, donroden@hiwaay.net wrote:
>
> Isn't that the way the relay is supposed to work ?? W4DNR
>
>
>
> On 2022-07-29 11:30 am, Ed Swiderski, KU4BP wrote:
>
>> I have a confusing problem with my AL1200. During operation
when the
>> stdby/oper is on, the received signal is very weak. Switching
back to
>> standby and the signal level is fine. Checked the relay and it was
>> operating correctly. Engaging with 12v applied to it. With no
power
>> to the amp and a rx signal going through, manually engaging the
relay
>> weakens the signal. Releasing it and it's back to normal.
Cleaned the
>> contacts using the method described by W8JI on his site. Still
no go.
>> Stumped on where to look next to track this down. A tests on
another
>> radio produced the same results.
>>
>> With no power to the amp, I connected my RigExpert analyzer to the
>> "RF in" and a dummy load to "RF out". Doing a sweep, the SWR reads
>> around 1:1. Engaging the relay by hand shoots the SWR very
high. Goes
>> back down when released.
>>
>> That's the best symptoms I can give. Any suggestions would be an
>> immense help.
>>
>> Thank you,
>> Ed KU4BP
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>> Amps@contesting.com
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