The MacKay auto alarm keyer only sends the alarm signal… 4 second dashes separated by 1 second spaces…. no SOS or other data, that is sent manually. Same with the auto alarm receiver it listens for 4 second dashes and 1 second spaces…. it should ring after 4 consecutive ones. The auto alarm is to maintain a distress watch on 500 KHZ when the Radio Officer is off watch.
Great video! Seeing the E.H. Scott SLRM receiver’s cameo appearance made me smile. I have one that was given to me by my grandfather in 1964. Was my first real short wave receiver, the receiver for my first amateur station WN2ZPS in 1967, and still in use today at AJ1G in Stonington CT. Nice Mackayradio suite, appears to be 1970s vintage. I suspect the original HF equipment would have been a Mackey suite with a Federal 167B transmitter and. an E. H. Scott SLR-12B receiver, The SLR in the Scott model numbers stood for super low radiation. Their design included extensive shielding and filtering to minimize their superheterodyne circuits local oscillator from radiating a signal back to the antenna that might be detracted and homed in via radio direction finding systems on enemy submarines. 73 de Chris AJ1G Stonington CT
At 19:00 , ITT Mackay 3020A receiver, it's my first radio use on 1978! Almost the best radio receiver at that era! The whole MM console seems built around 1976
Want yo visit. Was next to my cruise ship 3 weeks ago but i was injured on trip. Straight to hospital. Line by Tarpon Spr, so plan visit when better. 73 wa2kbz
The MacKay auto alarm keyer only sends the alarm signal… 4 second dashes separated by 1 second spaces…. no SOS or other data, that is sent manually. Same with the auto alarm receiver it listens for 4 second dashes and 1 second spaces…. it should ring after 4 consecutive ones. The auto alarm is to maintain a distress watch on 500 KHZ when the Radio Officer is off watch.
Great video! Seeing the E.H. Scott SLRM receiver’s cameo appearance made me smile. I have one that was given to me by my grandfather in 1964. Was my first real short wave receiver, the receiver for my first amateur station WN2ZPS in 1967, and still in use today at AJ1G in Stonington CT.
Nice Mackayradio suite, appears to be 1970s vintage. I suspect the original HF equipment would have been a Mackey suite with a Federal 167B transmitter and. an E. H. Scott SLR-12B receiver, The SLR in the Scott model numbers stood for super low radiation. Their design included extensive shielding and filtering to minimize their superheterodyne circuits local oscillator from radiating a signal back to the antenna that might be detracted and homed in via radio direction finding systems on enemy submarines.
73 de Chris AJ1G Stonington CT
At 19:00 , ITT Mackay 3020A receiver, it's my first radio use on 1978! Almost the best radio receiver at that era! The whole MM console seems built around 1976
Want yo visit. Was next to my cruise ship 3 weeks ago but i was injured on trip. Straight to hospital. Line by Tarpon Spr, so plan visit when better. 73 wa2kbz
Mackay 3030 sitting above the 3020... a far superior receiver about 10 years newer design... early 80’s instead of early 70’s...
FB fist at 18:20