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When the SX-115 came out, a club member volunteered it's use for Field Day, replacing a 75A4 in our 80/40 meter CW station.? Turns out it suffered terribly from IMD problems and by midnight one of

Hi Walt.? Well, I guess the drive to make old stuff better is just in my bloodstream.? Some guys collect old stuff and display it on shelves and never turn it on.? Nice to look at.? That's just

At my age and with my poor propagation location, doing well in the contests isn't really my goal.? I have other rigs that comprise a modern station that are capable of all mode contest operation.? I

One of the reasons I run some of my old stuff in CW contests is that it's a good way to root out forthcoming failures and design flaws.? I have the SX-117 and HT-44 to the

I ran these radios for years back in the late 70's into the mid 80's. I mostly operate CW and used them to contest many time (won the 10 meter contest for EPA one year). I really liked these radios

FWIW, the Hallicrafters SX-115 “uber” receiver??has a CW pitch control. They cheaped out on the SX-117 unfortunately. The Collins 75S3B/C S-line??receiver did include a pitch/RIT control. Bob

At least some contests use a points multiplier that consists of the sum of the ages of the transmitter and receiver whether or not they are combined in a transceiver. I sometimes use an Elmac AF-67

Couldn't agree more with " instead of modifying a vintage setup that was never really intended to do that."Th If you want to stay with vintage equipment. The Hallicreafters SR-150 is a transceiver

I suppose it would add extra steps in the process.....I guess I'm implying that the HT44/SX117 (or any separate transmitter/receiver combo)? wouldn't be my "go-to" set up for rapid "contest" like

Floyd, I've operated old separates here in some contests and definitely feel your pain.? The only set I have that works easily is the Collins S line but even to get that behaving properly took some

Dave,? ? ?Inside pics attached below. Sorry it took so long. Yesterday was a long day. 73, RonK9RH

Wow - everyone has missed the point entirely.? Guess there aren't many folks using Hallicrafters gear in CW mode, particularly in contests.? I will go into greater detail and hope I don't offend

Rick, I'm afraid that doesn't make a lot of sense to me.? When I'm operating in a CW contest in search-and-pounce mode, when I want to call a station I hear, I want to be able to hit the key

Yes. The entire SR series of transceivers has receiver incremental tuning, RIT. Hallicrafters had the original patten on the RIT concept and was the first to go into production with it. Walt Cates,

My Swan 270B and 350B shift the oscillator between receive and transmit so that you can transmit and receive on the same frequency but still have nice receive audio tone frequency. But tuning so that

"Do any tranceivers actually have a way to change the received CW tone without changing the receiver frequency?' ?Sure -? Many of the modern HF transceivers have a "CW tone/pitch" control that

Richard, I was going to reply to your last sentence, but my AI editor refused to allow it to be transmitted Sent: Friday, November 22, 2024 4:12 PM To: [email protected] Subject: Re:

It seems to me that having differential tuning for RX and TX serves two purposes: one is to tune a received signal that is drifting slightly, the other, and I think what is meant here, is to set

Floyd, I have the same twins (plus the HT45) It would appear that using a varicap,? "switched-in" when selecting CW would probably do the job.? It would require a little experimentation

I wonder if anyone has looked at a modification to the HT-44 to provide a CW mode offset in transceive?? I tried adjusting C1 in the HT-44 to get an offset in the area of 500-700 Hz, but could get it