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Thanks for the ad. I have? the radio a 7610 going to the Palstar LA1K . I would think with the amp off (no power} that it would be passive and the radio could Transmit and receive with it off?. This is not the case. I need to have the amp ON in standby or operate to transmit or receive on the 7610? Am i missing something?? I used t have the Auto tuner and amp inline and there was no problem.
?CW
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Hi Chris, Same thing here with my LA1K. I have to power it on to operate even if I'm only wanting to listen to the radio. Bob NN5D
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My TS890 plays through the Palstar, on or off.
On Fri, Apr 28, 2023, 10:48 AM Bob NN5D < nn5d.bob@...> wrote: Hi Chris, Same thing here with my LA1K. I have to power it on to operate even if I'm only wanting to listen to the radio. Bob NN5D
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Mine a 2019 model will Rx and Tx on or off.
On Fri, Apr 28, 2023 at 11:03?AM Ken Lemke AC0DQ < kclemke@...> wrote: My TS890 plays through the Palstar, on or off.
On Fri, Apr 28, 2023, 10:48 AM Bob NN5D < nn5d.bob@...> wrote: Hi Chris, Same thing here with my LA1K. I have to power it on to operate even if I'm only wanting to listen to the radio. Bob NN5D
-- Eric D.Clanton DVM
1519 Pelham Rd
Jacksonville, AL 36265
256-435-8387
WN4WDE
"Life's tough......it's even tougher if you're stupid"?? -- John Wayne
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Chris...
My TS-890S will feed-thru the LA-1K while the amp is off.? Is your problem due to a setup issue?? My LA-1K defaults to BYPASS at startup.? Suggest you review the LA-1K setup menu, and see if that might be the reason.? The brand of your exciter should have NO effect on BYPASS.? I used an Icom IC-7600 with the same LA-1K, and had full BYPASS when off.
Jerry Webb
KB1N
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Antenna Port # 1 of the LA-1K is engaged when the amp is powered off.
Accordingly, a transceiver hooked up to a good powered-off LA-1K will operate with the antenna connected to Antenna Port # 1 of the LA-1K, as if the amp isn’t even there.
73, Ray KJ5MI
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On Apr 28, 2023, at 11:10 AM, Chris K2HVE <hamradio49@...> wrote: ?Thanks for the ad. I have? the radio a 7610 going to the Palstar LA1K . I would think with the amp off (no power} that it would be passive and the radio could Transmit and receive with it off?. This is not the case. I need to have the amp ON in standby or operate to transmit or receive on the 7610? Am i missing something?? I used t have the Auto tuner and amp inline and there was no problem.
?CW
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Hi Chris, I operate through my LA-1K with it in the off position with no issues. Also known as ‘barefoot’ mode. The exciter is a SunSDR2 Pro. Both RX and TX. 2019 was when the amplifier was purchased.
73, Roger VA1RST?
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On Apr 28, 2023, at 12:10 PM, Chris K2HVE <hamradio49@...> wrote:
?Thanks for the ad. I have? the radio a 7610 going to the Palstar LA1K . I would think with the amp off (no power} that it would be passive and the radio could Transmit and receive with it off?. This is not the case. I need to have the amp ON in standby or operate to transmit or receive on the 7610? Am i missing something?? I used t have the Auto tuner and amp inline and there was no problem.
?CW
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My FT2000 plays through my Palstar auto tuner and la1k on or off.?
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On Apr 28, 2023, at 12:42 PM, tuneupmagic (null) via groups.io <tuneupmagic@...> wrote:
? Antenna Port # 1 of the LA-1K is engaged when the amp is powered off.
Accordingly, a transceiver hooked up to a good powered-off LA-1K will operate with the antenna connected to Antenna Port # 1 of the LA-1K, as if the amp isn’t even there.
73, Ray KJ5MI
On Apr 28, 2023, at 11:10 AM, Chris K2HVE <hamradio49@...> wrote:
?Thanks for the ad. I have? the radio a 7610 going to the Palstar LA1K . I would think with the amp off (no power} that it would be passive and the radio could Transmit and receive with it off?. This is not the case. I need to have the amp ON in standby or operate to transmit or receive on the 7610? Am i missing something?? I used t have the Auto tuner and amp inline and there was no problem.
?CW
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Only port one is connected with the amp powered down.
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Dont tell me this has also been changed like the 220/120 switch thing….. eg. New amps no longer have straight thru when amp off design?
On Fri, Apr 28, 2023 at 09:48 Bob NN5D < nn5d.bob@...> wrote: Hi Chris, Same thing here with my LA1K. I have to power it on to operate even if I'm only wanting to listen to the radio. Bob NN5D
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There is a caution to be remembered in this
regard and it has to do with having two ATUs in the
circuit.
A transceiver can be used barefoot through the LA-1K
provided the external ATU (HF-AUTO or whatever) is the active ATU
in order to protect the LA-1K.
There have been instances where hams have put their
external ATU (HF-AUTO or whatever) in OFF or BYPASS, believing
they could then use the transceiver's internal ATU to do
the matching.
Paul warned against doing this in a similar discussion a year or
so ago, and the caution is printed in the HF-AUTO manual:
Bypass
mode bypasses
the matching network.? Some users have the tuner in
Bypass
allowing them to use their radio’s internal antenna tuner.? Caution is
needed in this last case if
an amplifier is in the circuit and turned off or in
bypass.
The standing waves (SWR)
will potentially have high voltage nodes that can
cause damage to the bypass components in
the amplifier.
In
short, when operating a transceiver barefoot through the
bypassed LA-1K, the operative ATU should remain the external
ATU, not the transceiver's internal one (which should be
disabled).
73,
Kent
K9ZTV
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Great reminder Kent - thanks! Paul NO0T
On Sat, Apr 29, 2023 at 6:32?PM Kent Trimble, K9ZTV < k9ztv@...> wrote:
There is a caution to be remembered in this
regard and it has to do with having two ATUs in the
circuit.
A transceiver can be used barefoot through the LA-1K
provided the external ATU (HF-AUTO or whatever) is the active ATU
in order to protect the LA-1K.
There have been instances where hams have put their
external ATU (HF-AUTO or whatever) in OFF or BYPASS, believing
they could then use the transceiver's internal ATU to do
the matching.
Paul warned against doing this in a similar discussion a year or
so ago, and the caution is printed in the HF-AUTO manual:
Bypass
mode bypasses
the matching network.? Some users have the tuner in
Bypass
allowing them to use their radio’s internal antenna tuner.? Caution is
needed in this last case if
an amplifier is in the circuit and turned off or in
bypass.
The standing waves (SWR)
will potentially have high voltage nodes that can
cause damage to the bypass components in
the amplifier.
In
short, when operating a transceiver barefoot through the
bypassed LA-1K, the operative ATU should remain the external
ATU, not the transceiver's internal one (which should be
disabled).
73,
Kent
K9ZTV
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I bought mine within the last 6 months and it does not need to be powered on to use my radio.
Get
On Apr 29, 2023, at 1:09 PM, Barry < barplo@...> wrote:
Dont tell me this has also been changed like the 220/120 switch thing….. eg. New amps no longer have straight thru when amp off design?
On Fri, Apr 28, 2023 at 09:48 Bob NN5D <
nn5d.bob@...> wrote:
Hi Chris,
Same thing here with my LA1K. I have to power it on to operate even if I'm only wanting to listen to the radio.
Bob NN5D
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I run my FTDX 101 with the HF Auto and LA 1K with the Palstars turned off most of the time. I also operate them independently with one or the other turn on or off.? They are here to use as needed not an appliance. My radio is on from 6 am to 10 pm 7 days a
week. I sure don't want to run those fans all the time. If the new ones won't it must be a chip thing. I think all understand that issue. Palsar is the best IMHO. Great product and service.
Steve W7CM
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There is a caution to be remembered in this regard and it has to do with having
two ATUs in the circuit.
A transceiver can be used barefoot through the LA-1K provided the external ATU (HF-AUTO or whatever) is the active ATU in order to protect the LA-1K.
There have been instances where hams have put their external ATU (HF-AUTO or whatever) in OFF or BYPASS, believing they could then use the
transceiver's internal ATU to do the matching.
Paul warned against doing this in a similar discussion a year or so ago, and the caution is printed in the HF-AUTO manual:
Bypass mode
bypasses the matching network.? Some users have the tuner in
Bypass allowing them to use their radio’s internal antenna tuner.?
Caution is
needed in this last case if an amplifier is in the circuit and turned off or in bypass.
The standing waves (SWR) will potentially have high voltage nodes that can
cause damage to the bypass components
in the amplifier.
In short, when operating a transceiver barefoot through the bypassed LA-1K, the operative ATU should remain the external ATU, not the transceiver's internal one (which should be disabled).
73,
Kent
K9ZTV
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I operate my Yaesu FTDX101D (internal ATU disengaged) as an exciter for my LA-1K (both on and off) into antennas with acceptable SWR at each operating frequency; all without the use of any external antenna tuner.
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On Apr 29, 2023, at 2:50 PM, Paul <sobonpaul@...> wrote: ? Great reminder Kent - thanks! Paul NO0T On Sat, Apr 29, 2023 at 6:32?PM Kent Trimble, K9ZTV < k9ztv@...> wrote:
There is a caution to be remembered in this
regard and it has to do with having two ATUs in the
circuit.
A transceiver can be used barefoot through the LA-1K
provided the external ATU (HF-AUTO or whatever) is the active ATU
in order to protect the LA-1K.
There have been instances where hams have put their
external ATU (HF-AUTO or whatever) in OFF or BYPASS, believing
they could then use the transceiver's internal ATU to do
the matching.
Paul warned against doing this in a similar discussion a year or
so ago, and the caution is printed in the HF-AUTO manual:
Bypass
mode bypasses
the matching network.? Some users have the tuner in
Bypass
allowing them to use their radio’s internal antenna tuner.? Caution is
needed in this last case if
an amplifier is in the circuit and turned off or in
bypass.
The standing waves (SWR)
will potentially have high voltage nodes that can
cause damage to the bypass components in
the amplifier.
In
short, when operating a transceiver barefoot through the
bypassed LA-1K, the operative ATU should remain the external
ATU, not the transceiver's internal one (which should be
disabled).
73,
Kent
K9ZTV
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Aha! I’m using Antenna 2 . I know it was passive with my 7600 but I changed to ant 2 with the 7610. This explains it Thank you!?
73
Chris K2HVE?
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On Sat, Apr 29, 2023 at 04:58 PM, Steve Snyder wrote:
My radio is on from 6 am to 10 pm 7 days a week. I sure don't want to run those fans all the time.
Lol.. I take "those fans" you mentioned above are the ones installed in the Palstar products. What is/are the reason(s) you don't want to run those fans all the time?? Are the fans too noisy or you have doubt about their reliability?? Or both? Clearly, you and I both choose to own the reliable Yaesu FTDX101D and wouldn't hesitant to power it up all day long, same way we do with our desktop personal computers, with the fans running, as needed. 73, Ray KJ5MI
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? Great, it looks like KJ5MI ( "tuneupmagic (null)" )? got it about right about 10 posts ago!?? Happy you got it figured out.
73,? Ron?? WA2EIO
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We live in farm country and it makes less things to take apart and blow out. Plus if you own a LA-1K you know the fans are not silent.
Steve
W7CM
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On Sat, Apr 29, 2023 at 04:58 PM, Steve Snyder wrote:
My radio is on from 6 am to 10 pm 7 days a week. I sure don't want to run those fans all the time.
Lol.. I take "those fans" you mentioned above are the ones installed in the Palstar products.
What is/are the reason(s) you don't want to run those fans all the time?? Are the fans too noisy or you have doubt about their reliability?? Or both?
Clearly, you and I both choose to own the reliable Yaesu FTDX101D and wouldn't hesitant to power it up all day long, same way we do with our desktop personal computers, with the fans running, as needed.
73,
Ray
KJ5MI
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On Sat, Apr 29, 2023 at 08:17 PM, Steve Snyder wrote:
We live in farm country and it makes less things to take apart and blow out. Plus if you own a LA-1K you know the fans are not silent.
The current LA-1K Technical Manual as provided on the Palstar website says nothing about the need for any periodic preventive maintenance requirements (e.g. cleaning the fans, etc.) of the amplifier. Btw while I was on the HHH Net this morning, the replacement power switch of my LA-1K (S/N 38935) has failed after just nine (9) weeks of installation.? I have already emailed Mark Ward (Palstar technician) this video clip showing the same failure experienced by the original power switch that Mr. Ward deemed defective on February 20, 2023. Since there isn't a way to decode the LA-1K serial number to arrive at the amp's date of manufacture (confirmed by Mr. Ward) just FYI.. my LA-1K has a manufacture date of January 19, 2023.? So, how do you spell infant mortality?? And the 1-year (repeating one-year) warranty of my LA-1K started on January 19, 2023; also confirmed by Mr. Ward.? Good thing I purchased mine directly from Palstar and was in possession of my amp within a just few days, as opposed to buying a LA-1K from one of their authorized dealers that may have a LA-1K sitting around in a box for months! Bottom line:? Buyers beware! 73, Ray KJ5MI
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Chris K2HVE
Eric Clanton
Roger Stein
Paul
Ron - WD8T