relay that is bad.
I do need to get it fixed,
Larry k6ro
-Original Message-
From: Andy Durbin
Sent: Monday, January 17, 2022 7:20 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA1500 problem
"No, RX audio just appears greatly attenuated - acting like the antenna is
di
I have the similar problem with one of my 1500 amps.
Elecraft says it is a relay that is bad.
I do need to get it fixed,
Larry k6ro
-Original Message-
From: Andy Durbin
Sent: Monday, January 17, 2022 7:20 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA1500 problem
"N
"No, RX audio just appears greatly attenuated - acting like the antenna is
disconnected. There is still the ambient hiss from the K3 speaker."
Isn't that exactly what you would expect to hear if the amplifier was
spuriously keyed but the K3 was not keyed? All it would take is a faulty
keying
Hi Andy,
No, RX audio just appears greatly attenuated - acting like the antenna is
disconnected. There is still the ambient hiss from the K3 speaker. The symptom
reminds me of a problem I has with my Alpha 86 that ended up being a dirty T/R
relay. He’s close to end of warranty so he probably
"A buddy of mine is having a problem with his KPA1500 where the receive path is
cutting out intermittently when he switches to OPER. It comes back when he
switches back to STBY. This occurs occasionally, sometime it works fine.
Any comments?"
Does the "keyed" indicator change at the same time
A buddy of mine is having a problem with his KPA1500 where the receive path is
cutting out intermittently when he switches to OPER. It comes back when he
switches back to STBY. This occurs occasionally, sometime it works fine.
Any comments?
73,
Bill WE5P
Comfortably Numb
Roy,
The very first thing you do is attach a dummy load to the antenna jack on the
back of he amp and isolate the problem to the amp or feedline and/or antenna.
If you don't have one, you should purchase one right away.
I have seen the type of fault many times, and a good percentage of the it
" My KPA1500 (s/n 121) has developed a problem:
When applying power (15-20W) from the K3 to the amp, it immediately faults
to:low gain fault ratio 3 (sometimes ratio 2 to ratio 6). The SWR indicator
shows high SWR as the amp faults. 100w only from exciter will cause ATU to
tune to 1:1 but
Elecraft
Sent: Friday, July 20, 2018 8:54 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] KPA1500 problem
I received my new KPA1500 in mid April. After giving it a test drive and making
a few QSOs here at home in Madison I took it up to our cabin in northern WI
where it will live. I operated
You probably need a replacement T/R module. Were the pin diodes exposed to
super high SWR?
John KK9A
Jim Fitzpatrick WI9WI Wrote:
I received my new KPA1500 in mid April. After giving it a test drive and
making a few QSOs here at home in Madison I took it up to our cabin in
northern WI
It sounds like the PIN diode switches are either stuck in the transmit
position, or the receive path has failed. Since a mechanical relay
bypasses the PIN diode switches in STBY, received signals would then get
through normally.
73,
Scott K9MA
On 7/20/2018 19:54, Jim Fitzpatrick via Elecraft
Jim,
No answers here, but email supp...@elecraft.com.
I have heard of this sort of problem before, but do not know the answer.
73,
Don W3FPR
On 7/20/2018 8:54 PM, Jim Fitzpatrick via Elecraft wrote:
I received my new KPA1500 in mid April. After giving it a test drive and
making a few QSOs
I received my new KPA1500 in mid April. After giving it a test drive and
making a few QSOs here at home in Madison I took it up to our cabin in
northern WI where it will live. I operated the Florida QSO party with
it, as well as the ARRL VHF contest with no problems. I also made quite
a few
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