Re: Band Data Cable FTDX10 to LA-1K
UPDATE: I assembled and installed the cable from the FTDX10 to the LA-1K and all seems well. The cable wires are extremely small and fragile and I just didn't trust the screw-down connectors to hold them firmly. So I soldered the wires to the underside of the pc board. The photo shows the underside of the pc board and how I secured the assembly with a nylon strap.
On Mon, Jan 9, 2023 at 6:42 PM Joe Loverti WW8X via <jloverti= [email protected]> wrote: Yes, I can confirm the? DB-10MY cable is out-of-stock nearly everywhere. The alternative suggestion is the best?way to proceed without having that hard to get cable. I've ordered the components (CSU-28 cable and the 9-pin connector) which I hope to receive soon. I put together a wiring guide to help me make the correct connections. If you see something wrong, let me know. Hopefully?it may prove useful to others with the same connection conundrum.?Joe WW8X
K9TRX:
So glad you made your own cable.... once you have the parts then it is rather simple.
Enjoy your rig and the AMP.
It is a great amp.
I also have the RFKIT RF2K-S ?amp as well.?
Have fun and enjoy your FTDX10 now that you have some extra "Grunt".
Higher power does require that all the little details are perfect in the transmit stream.
73 Art W1SWL
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Re: Band Data Cable FTDX10 to LA-1K
Yes, I can confirm the? DB-10MY cable is out-of-stock nearly everywhere. The alternative suggestion is the best?way to proceed without having that hard to get cable. I've ordered the components (CSU-28 cable and the 9-pin connector) which I hope to receive soon. I put together a wiring guide to help me make the correct connections. If you see something wrong, let me know. Hopefully?it may prove useful to others with the same connection conundrum.?Joe WW8X
K9TRX:
So glad you made your own cable.... once you have the parts then it is rather simple.
Enjoy your rig and the AMP.
It is a great amp.
I also have the RFKIT RF2K-S ?amp as well.?
Have fun and enjoy your FTDX10 now that you have some extra "Grunt".
Higher power does require that all the little details are perfect in the transmit stream.
73 Art W1SWL
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Re: Band Data Cable FTDX10 to LA-1K
K9TRX:
So glad you made your own cable.... once you have the parts then it is rather simple.
Enjoy your rig and the AMP.
It is a great amp.
I also have the RFKIT RF2K-S ?amp as well.?
Have fun and enjoy your FTDX10 now that you have some extra "Grunt".
Higher power does require that all the little details are perfect in the transmit stream.
73 Art W1SWL
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Re: Band Data Cable FTDX10 to LA-1K
I cannot affirm that the cable you mention is suitable, but here is my experience.??Mark at Palstar suggested the cable made for the Ameritron 1306 Solid state amp.? It is compatible with the LA-1K.? ?The specific model for the FTDX-10 is the?Ameritron Band Data Interface Cable DB-10MY.? DX Engineering shows them on backorder until June!? After reading many helpful posts on this forum, I built my own.? Extremely easy.? Although there is some debate about it's usefulness, I find the band data cable is a better and safer option than the PTT connection/"Normal" keying mode.? The sequencing attained under the "Direct Keying Mode" is shown on p. 21 of the Palstar manual.?
If you roll your own, here's one approach:?
Note:?My LA-1k is fairly new so older manuals may be different..??The manual has the pinouts for the DB-9 "Radio Interface for Yaesu/Icom" on p.13 , bottom left hand table.? Also, you need to reference the "Linear" jack 10 pin wiring on P.13 of the FTDX-10 manual.??
I bought a multiconductor cable with the 10 pin mini-din attached because I couldn't find a connector (reasonably priced).? DX Engineering sells this and a Yaesu cable that is basically the same for more money:?
?DXE-YSU-10PMD-UN, about $25.? The DB-9 connector can be found everywhere, either solder type or terminal strip.? This is from a lead by W1SWL (Thanks Art) and is on Amazon.? There are lots of look-alikes by various company names (probably all made at the same plant) but this was as advertised and excellent quality.? Two for about $13.? I wound up using the other one on another project.??ANMBEST 2PCS DB9 Solderless Connector, RS232 D-SUB Serial to 9-Pin Port Terminal Female Adapter Connector Breakout Board with Locking Housing.??No soldering involved and you only need a small flat-blade screwdriver and a wire stripper.? The part that requires the most thought is mating the colors of the cable to the appropriate functions.? It's pretty obvious from the drawings what has to happen(a wiringto get the two ends connections ends to?It is true that this cable also enables activating the amp by keying the radio.? You must remove any connection to the PTT jack on the linear.? On the amp menu "Select Mode Option,"? you'd choose "Direct Keying."? If all is good, it gives you confirmation that the cable is detected.? In operation, when you change bands, the amp goes into standby and selects? the proper band settings thereby giving you a chance to tune up (barefoot).? When you hit the amp with a little r.f., it is set to go and you'll get the frequency readout to match the radio.? FYI, In the "Direct Mode" Palstar recommends a transceiver keying delay of approximately 11 milliseconds.? This is most important for CW.? ?The FTDX-10? "QSK Delay Time" (p. 96) can be be from 15 to 30 ms, so you are safe with any of these.? Thanks to W1SWL and all the others for help in going through this myself!
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Re: Band Data Cable FTDX10 to LA-1K
Steve, Are you using the CT-118 with the ftdx-101 or the CT-178 which is the cable listed for the 101D/MP. Ron? WD8T Sent from Proton Mail mobile
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-------- Original Message -------- On Jan 4, 2023, 6:16 PM, Steve Snyder < w7cm@...> wrote:
I use one with my 101. Works good. You have to go into the menu and tell
the amp that is what you are doing. You can also do away with the Keying line.
Steve
I have a FTDX10 with the LA-1K.? I bought the cable needed off of ebay ->?
The cable goes to my MFJ998 ATU, and the output goes to the amplifier.? I have not tried to go directly from the radio to the amp with this cable. However, I sent an email to Palstar and they seemed to think this cable would work going directly from the
FTDX10 to the LA-1k.
Thanks,
David
On 1/4/2023 3:27 PM, Joe Loverti wrote:
Does anyone have experience using a Yaesu FTDX10 to drive the LA-1K? Yaesu suggests using their CT-118 band data cable for their Yaesu amp. Would it also work for the LA-1K?
Joe Loverti
WW8X
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Re: Band Data/Interface cable Elecraft K4 to LA1k
Thanks for the that info. Very helpful. Waiting on my parts to arrive and get the LA-1K on the air.
Joe WW8X
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Re: Band Data/Interface cable Elecraft K4 to LA1k
Pardon the typo... Yes, it's SCU-28 cable for sure! Thank you.
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Re: Band Data/Interface cable Elecraft K4 to LA1k
PALSTAR YAESU CABLE TO LA-1K
?
Here are the pin connections I made for the band data cable from the FTDX101D to the LA1K about a year ago.
101D ? ?LA1K
DB15? ? DB9
2? ? ---? ? 7 ? TX
3? ? ---? ? 6 ? GRND
4? ? ---? ? 2 ? BCD A
5? ? ---? ? 1 ? BCD B
6? ? ---? ? 9 ? BCD C
7? ? ---? ? 8. ?BCD D
?
 
It worked perfectly from my 101MP to the LA-1K. ?I used the two parts which I sourced from AMAZON.
Hope this helps..??
Art W1SWL
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Re: Band Data/Interface cable Elecraft K4 to LA1k
Joe ...
According to the FTDX10 manual, you want an SCU-28 cable
for connection to the LA-1K (not SCU-18).
Snip off the other end, and wire it to a break-out board:
(spring terminals and thumb screws)
73,
Kent
K9ZTV
On 1/7/2023 2:01 PM, Joe Loverti WW8X
wrote:
I plan on doing something similar with my FTDX10 to the LA-1K. The
FTDX10 uses a 10-pin mini din, so I ordered a Yaesu SCU-18 cable
to connect to a 9-pin solder-less terminal connector. I just have
to make sure I get the correct wire to the correct pin. I'm using
the chart in the LA-1K manual as a guide.
Joe - WW8X
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Re: Band Data/Interface cable Elecraft K4 to LA1k
I plan on doing something similar with my FTDX10 to the LA-1K. The FTDX10 uses a 10-pin mini din, so I ordered a Yaesu SCU-18 cable to connect to a 9-pin solder-less terminal connector. I just have to make sure I get the correct wire to the correct pin. I'm using the chart in the LA-1K manual as a guide.
Joe - WW8X?
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Re: Band Data Cable FTDX10 to LA-1K
Thanks Mike... the Linear jack shows 10 pins and the Tuner jack shows 8 pins. The link you gave has 9 pins. So, yes I'm still confused.
On Thu, Jan 5, 2023 at 1:05 PM KE0WNL < michael@...> wrote: I purchased this from GigaParts, but they are out of stock. The cable is made by Ameritron.?
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Re: Band Data Cable FTDX10 to LA-1K
I purchased this from GigaParts, but they are out of stock. The cable is made by Ameritron.?https://www.gigaparts.com/ameritron-db-10my-interface-cable.html
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Re: Band Data Cable FTDX10 to LA-1K
I use one with my 101. Works good. You have to go into the menu and tell
the amp that is what you are doing. You can also do away with the Keying line.
Steve
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Show quoted text
I have a FTDX10 with the LA-1K.? I bought the cable needed off of ebay ->?
The cable goes to my MFJ998 ATU, and the output goes to the amplifier.? I have not tried to go directly from the radio to the amp with this cable. However, I sent an email to Palstar and they seemed to think this cable would work going directly from the
FTDX10 to the LA-1k.
Thanks,
David
On 1/4/2023 3:27 PM, Joe Loverti wrote:
Does anyone have experience using a Yaesu FTDX10 to drive the LA-1K? Yaesu suggests using their CT-118 band data cable for their Yaesu amp. Would it also work for the LA-1K?
Joe Loverti
WW8X
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Re: Band Data Cable FTDX10 to LA-1K
I have a FTDX10 with the LA-1K.? I bought the cable needed off of
ebay ->?
The cable goes to my MFJ998 ATU, and the output goes to the
amplifier.? I have not tried to go directly from the radio to the
amp with this cable. However, I sent an email to Palstar and they
seemed to think this cable would work going directly from the
FTDX10 to the LA-1k.
Thanks,
David
On 1/4/2023 3:27 PM, Joe Loverti wrote:
toggle quoted message
Show quoted text
Does anyone have experience using a Yaesu FTDX10 to drive the
LA-1K? Yaesu suggests using their CT-118 band data cable for their
Yaesu amp. Would it also work for the LA-1K?
Joe Loverti
WW8X
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Band Data Cable FTDX10 to LA-1K
Does anyone have experience using a Yaesu FTDX10 to drive the LA-1K? Yaesu suggests using their CT-118 band data cable for their Yaesu amp. Would it also work for the LA-1K?
Joe Loverti
WW8X
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Re: LA-1K overdrive warning
PEP is just too high start with 15watts drive then move up. Monitor output power as you modulate the peaks. Good luck. It’s a wonderful Amp. ?
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On Dec 24, 2022, at 10:19 AM, Dave Bates <Kf0xq1@...> wrote:
? I’d take it down to 35 or 40 watts drive.?
I use about 3 watts FM to tune the ?tuner, then ramp it up to 35. Then go back to SSB, then take the amp out of standby
On Sat, Dec 24, 2022 at 9:01 AM Kent Trimble, K9ZTV < k9ztv@...> wrote: Joe ...
50 watts drive as measured on which meter and in what mode?
Kent K9ZTV ?Hello! I'm new to the group and my first post. Just picked up a new LA-1K yesterday and I'm driving with an Icom 7300 with 50 watts. If I speak too close into the microphone the amp displays "Overdrive" and stops transmitting. Is this normal for the amp to be so sensitive to voice peaks?? I guess I just have to learn to pay more attention to how I speak into the microphone.?
Joe WW8X
-- Dave Bates
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Re: LA-1K overdrive warning
This may be old news to some, but I found an interesting video demonstrating Bob Sherwood’s advice on how to avoid “hot switching” a linear amplifier with a IC 7300 and 7610. He suggesting setting the TX delay in the setting menu. https://youtu.be/_n64XrSziDQ
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Much appreciated, thank you
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Re: LA-1K overdrive warning
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On Sat, Dec 31, 2022 at 10:01 AM Jerry Leckness < kd4xr@...> wrote: I've been using the LA-1K and HF-Auto behind a Yaesu FTdx101MP for almost 3 years now and have never had it kick out for any reason except once when I accidentally hit it with 200w drive. Ouch!?
My recommendations are: You should NEVER EVER drive the LA-1k with more than 60 watts. And you should NEVER consistently run the LA-1K at more than 300 watts output in FT4/8 modes. You should NEVER use "Mic Gain" to control RF output.?
It is your money but running the LA-1k at 1200 watts is nuts! It will damage the output transistors and shorten the amplifiers lifespan. I never run my LA-1K at more than 800 watts because to get any significant change in signal strength you'd have to go to 1600 watts. 1000 watts isn't going to make much difference. In my opinion, with a 1kw amplifier, anything over 800 is a waste of energy and unnecessary wear and tear on the amplifier finals.
I tune the HF-Auto with the FTdx101MP in RTTY mode and 10 watts output and the LA-1K in "Standby" mode. After the HF-Auto completes tuning, I switch the LA-1K to "Operate". Using this procedure, the drive power versus amplifier output power remains consistent across all bands. 40 watts drive results in 800 watts output. I believe that is due to the LA-1K always seeing a consistent SWR of 1.5:1 or less.
Another thing to watch for is intermittent problems in feedline, connectors, and baluns. As RF output power increases, these types of problems become more apparent. Baluns will overheat or burn out, connectors will arc, and feedline will become less efficient. The result is often intermittent HI SWR which will cause the LA-1K to "kick-out" due to HI SWR.??
Anyway, this is just my opinion and is based on my experience.?
73 kd4xr
Jerry
?
?
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Re: LA-1K Max feed-through power?
No problem. I run an FTDX101MP and I turn the LA-1K off when running the Yaesu at 200 watts.
73 kd4xr
Jerry
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Ron Emerson
Craig S