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icom&ameritron
- Thread starter 1iwilly
- Start date
ALC and send, have nothing to do with each other. Send will key the amp.
i assume you key both at the same time or radio then amp my othe amps didn't need anything extra to make them key
Yes, your assumption is correct. A foot switch is generally required when the ham amplifier brand is different than the transceiver. Just a foot switch connected.
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The radio's 'send' jack on the rear should be compatible with Ameritron amplifiers. The schematic shows a relay in the radio connected to the send jack. You should be good to go with just a patch cord with a RCA plug on each end.
Oddly enough the owner's manual fails to mention any limits on what you may switch using the send jack.
73
Oddly enough the owner's manual fails to mention any limits on what you may switch using the send jack.
73
Yes i found a heavy-duty 90-degree RCA cable it's working radio is keying the amp thanks for the replies
Being of different brands has nothing to do with it. An Icom radio can key a Kenwood amp. A Kenwood radio can key a Yaesu amp. A foot switch is required when the radio does not have a send port such as when using an 11m radio with a ham amp. Some older tube type amps require either a slight mod or the use of a foot switch because the voltage/current required to key them is beyond the capabilities of the relay in the driving radio.
This is not the case. Send is nothing more than a key line to ground, when the radio is in TX. It is not brand specific. The only thing of concern, is the keying voltage of the amps T/R relay, which may exceed the T/R relay or send circuit of the radio, which s why there are amplifier buffers.
Captain Kilowatt and SuperLid.
You are right. If the transceiver doesn’t have a Send RCA, these type of amplifier won’t work. In my station, I have 4 transceivers, 2 HF and 2 CB transceivers. For obvious reasons, CBs don’t have the Send RCA like HF transceivers to activate a HF amplifier. In my case the easiest way was a foot switch. Not a big deal. You get used to use the foot switch.
You are right. If the transceiver doesn’t have a Send RCA, these type of amplifier won’t work. In my station, I have 4 transceivers, 2 HF and 2 CB transceivers. For obvious reasons, CBs don’t have the Send RCA like HF transceivers to activate a HF amplifier. In my case the easiest way was a foot switch. Not a big deal. You get used to use the foot switch.
If running a foot switch, Always key the Amp first, you don't want to hot-switch with drive going through the contacts in the relays.
73
Jeff
If you apply drive before switching the relay it's more wear on the contacts, Ideally it is better to open/close them when they are not carrying rf.
73
Jeff
73
Jeff