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ALC
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One to one and a half, Mike KR9G On Fri, Jul 10, 2020 at 12:53 PM Steve Shep <shepsvettes@...> wrote: Who all uses ALC? About what setting do you have? |
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开云体育Mine is at -1, and I have no idea what happens if I change it. ? 73, Bernd – KB7AK ? From: [email protected] <[email protected]> On Behalf Of Hobart Poyser
Sent: Friday, July 10, 2020 10:16 AM To: [email protected] Subject: Re: [la1k] ALC ? One to one and a half, Mike KR9G ? On Fri, Jul 10, 2020 at 12:53 PM Steve Shep <shepsvettes@...> wrote:
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开云体育I do not use it.I do use the Band-Data DE-9 jack, however, and Direct Keying. 73, Kent? K9ZTV On 7/10/2020 12:15 PM, Hobart Poyser
wrote:
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开云体育Does the cable just do band selection and keying? ? From: [email protected] <[email protected]> On Behalf Of Kent Trimble, K9ZTV
Sent: Friday, July 10, 2020 2:05 PM To: [email protected] Subject: Re: [la1k] ALC ? I do not use it. On 7/10/2020 12:15 PM, Hobart Poyser wrote:
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Danny K5CG
Two different cables. Serial RS232 (DB9) for band data and an RCA Phono input for key input. From: "Steve Shep" <shepsvettes@...>
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开云体育Steve ... Which cable are you referring to ... ALC, PTT, RS232 Band Control (Kenwood), or Radio Interface (Icom/Yaesu)? 73, Kent ?K9ZTV On Jul 10, 2020, at 2:45 PM, Steve Shep <shepsvettes@...> wrote:
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-------- Original message -------- From: "Kent Trimble, K9ZTV" <k9ztv@...> Date: 7/10/20 3:55 PM (GMT-06:00) Subject: Re: [la1k] ALC Steve ... Which cable are you referring to ... ALC, PTT, RS232 Band Control (Kenwood), or Radio Interface (Icom/Yaesu)? 73, Kent ?K9ZTV
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On Jul 10, 2020, at 4:13 PM, Steve Shep <shepsvettes@...> wrote:
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Hi Steve - there was a customer that asked a similar question, the answer from one of the engineers might help you or others so I'm posting it here:? ?
ALC is NOT required and should ONLY be used on SSB. It’s kind of a leftover from when transceivers had poor output power regulation. ? Most modern rigs need only -1.5V ?to -3V for ALC voltage to start reducing their power output. ? ALC setting is highly dependent on which transceiver is being used. Setup is a simple two-step process. ? I suggest, as outlined in the LA-1K owner’s manual FIRST to set drive level (with ALC set for minimum or disconnected on LA-1K). Drive would be set on CW for desired output (Example 800W) ? After setting for desired output power, ?switch to SSB mode. While speaking in microphone, slowly advance the ALC setting on the LA-1K until PEAK RF power output just slightly drops. This is the desired setting.? Any higher will degrade the transmit quality. ? Alternatively, this may be adjusted by looking for a small INCREASE in the transceiver’s ALC meter reading. ? These settings should be checked or readjusted when switching bands. |