D-DAY COMMUNICATIONS - Part 1
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- เผยแพร่เมื่อ 27 ก.ย. 2024
- Learn about the wideband radio links setup to allow high reliability cross-channel teletype, facsimile and voice circuits. Telephony RF carrier and repeater and wideband FM Data equipment is covered, along with conventional radio gear.
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I was Army SC brat in 50's and hung out at MARS station K2USA, which dad built and founded. Also the SC museum, so familiar w/these sets. But then went USAF and solid year of radio relay and 10KW tropo school. Learned the old trc24 ( korea version) plus FRC 39a 10kw and MRC 80 ( an ipdated TRC 24 w/ 1kw and preamp. Fun,very hi tech, 600 channels betwedn mountaintops in Turkey: 300+ miles, 99.9999% reliability. Then went to ECM/ radar then over to Army as WO-1. 21 years later retd as CW4. This training opened many doors as civilian. Nice show, am fan. 73 Karl WA2KBZ
Thanks for great videos. I love this and have memories of my after the war experience with old radio gear and my time as a cw operator in the army. I love to come back some day on the radio after more than 40 years of silence. Trying to fix my old gear but it is not easy. What I have is not bad but needs recap and alignment. Hope to get you some day. 73
Wow! That was fascinating! Look forward to the next episode. I didn't realise that communications had got so sophisticated in the war!
Hello Mike, thank you for this wonderful video. I knew nothing about the use of FDM and wide band FM equipment on D-Day. I used to be employed as a fax engineer by Muirhead, who were the only British manufacturers of fax equipment, so I'm really looking forward to episode 2.
I always love your videos Mike. 73s from GW8JHT 👍
Good morning Mike. Best way to start the day!
I was in the Navy in the 60's, we still used some of the electronics, from WW2, one type was 16 channel time share multiplexing.
It's amazing what desperate times can come up with.
Harold Beverage designed NVIS antennas for the beach to inland communications links at D-Day!!
Great job presenting this forgotten radio history!...Very clearly explained!!...Maybe you could include some background on the Fred Link Corporation in your next video!!!...Where can one obtain the War Department Technical Manuals that you’re referencing?
Thanks for sharing! Looking forward to the next video in the series !
When I first started working at the WEDU transmitter (channel 3) {in 1963} we has a FM tank radio set there and at both studios on 26.11 and 26.45 MHz (on an "intercity broadcast link" band) with a vertical dipole one hundred feet up the tower. All had H.M. AC power supplies. Worked great. Ron W4BIN
The first use of this surplus FM gear in the late 50's was in the TV broadcast business, both for audio assist on the lower band you mentioned and later for studio transmission links at 60 kHz Deviation in its extended modulation setting, which allowed early video rates.
Mike, thank you for highlighting this topic. It is something that I don't think anyone understands or has any idea of.
We are all happy to applaud the work that was done to crack Enigma, but the leading edge science and technology that was applied to warfare is not in the public's eye. You could take the view that the comms systems that were used on D-Day were just as important as Bletchley in some ways as if they hadn't have performed, the outcome may have been completely opposite.
OK, I do have an axe to grind having always been interested in communications.....:)
Another epic series in the making! 73 de Richard M0SNR
My grandfather was a radio man in D Day... My dads call sign was N3HW...
I grew up to Morse code and CQ CQ CQ November 3 hotel whiskey radio contest weekend blasting through every TV and radio in the house and in the neighborhood....
Everyone knew when it was a radio contest weekend....
Great video 73s
Do you think the air ships were used for a capacitor drawing atmospheric electricity?
WOW! Another great video! S looking forward to Part #2. W5JCS
This is very familiar! I got an MOS of 32E20 (Fixed plant carrier repairman) at Fort Monmouth in 1975. Most of the racks of equipment will trained on still used tubes, but they did use Collins mechanical filters.
Absolutely fascinating Mike ... Thank you Sir!
73 - KF6IF
Very cool Mike! 73 - Dino KLØS
Radio shoot out=ARRL contests.
Interresting.
Fascinating!
Fm can be rcvd but this is wideband with 12 to 600 channels ( korea time frame) and comes out as gibberish
rcvd?
Great stuff Mike, thanks!
Looking forward to part 2. Thanks, Mike.
Did a radio operator have to write backwards in early radio transmission? I recall my dad talking about early transmissions came in backwards and his father could write backwards?
I used, in Vietnam carrier equipment: 31M20 MOS VHF operator, 60Kc wide band VHF/UHF Transmitter receiver AN-TRC-24, and the carrier equipment AN-TRC-7, 12-channel phone and teletype (also see Communication shelter AN-MCC-69) Gen set two 10KW SF-10
Why didn't they use satellites?
16.29 shows why the southern campaign had to come through Italy: with the weight of the radios, the only camouflage was the leaning tower of Pisa.
Thanks for this video, Mike. This was a fascinating watch. I've seen pieces of this system for sale at places like Fair Radio but this ties it all together. I'll definitely be around for the future installments.
Living in England, D day has been a large part of the news recently As it is probably the last time that surviving D day military personnel will cross the channel to remember the battle and the fallen. Thanks for this very interesting series which explores and area not much documented generally. Thanks, Mike. 👍
Mike, this is very interesting history of the technical aspects of the radio and telephone communications used in WWII! What was done to utilise the bandwidth on twisted pair is now days used to carry internet data (and the regular phone voice), via what's known as DSL.
Excellent Mike! I thought that a lot of this technology didn't come around until the Apollo space program.
Hi, good video, thanks! SSB is never mentioned, as if it had never existed? Moreover the signal appears as "encrypted" on a regular AM receiver. That would be a plus during war time operations?