Nice video mate their is an exact model of that same transmitter now operating up in the great state of Main courtesy of the CBC Barry Marsh's old ship mate and co engineer from the offshore days Allen Weiner is operating it along with the aerial system and towers from the former cbc station from Nova Scotia on 7.415 medium wave AM between 40-41 meters radio new york international wbcq the planet running on 500 kws shortwave and 50 kw medium wave around 720 khz wxme with occasional broadcasts coming this summer from our radio ship the Alice a 102 f sailing vessel
They were the days, although Caroline now broadcasts on 648 Khz with 1 kilowatt from Orford Ness, it will never be quite the same as it was then back in 1983 to 1990 when it was at anchor in the North Sea, but at least we now have something again.
Kudod to Peter Chicago for inventing the system which allowed two stations to broadcast from one ship. Radio England and Britain Radio had tried to do it in 1966 with only partial success, but Caroline proved it could be done successfully in 1973 and 1976-8 from the Mi Amigo, and from 1984-89 on the Ross Revenge.
Lee : combining 2 AM stations on 1 antenna is fairly common these days as many AM stations now co-locate to save money. WPAT AM 930 kHz shares its 4 tower antenna system with WNSW 1430 kHz at Clifton NJ.
Kwam ik aan met een simpele 250 watt fm zender dacht dat ik al heel wat had toen ik op een kilowatt zat en deze moest terug brengen naar 250 watt in stereo. Dat waren nog eens tijden
The narrator speaks about a 50kW RCA Ampliphase transmitter, but the cabinet label clearly shows BTA-5G (1:33) which is a 5kW transmitter. Oh well, who cares about 3dB ;-)
The narrator also points out that there are two signals being transmitted. The first transmitter we see is the 50 kW (BTA50J IIRC) used for Monique by day and Caroline at night on 963 kHz. The 5kW (later upgraded to 10, I believe) carried Caroline's daytime service, originally on 576 kHz, and later on 558 after Laser closed down on that frequency.
I would have thought that switching between the transmitters at 50 times a second would have imposed a 50hz hum on the modulated signal it would be interesting to hear how this was dealt with
I've seen circuit of the actual combiner, which is a fairly straightforward tuned 3-port passive circuit. I don't think that has anything to do with 50Hz. Perhaps the monitoring was multiplexed?
Nice video mate their is an exact model of that same transmitter now operating up in the great state of Main courtesy of the CBC Barry Marsh's old ship mate and co engineer from the offshore days Allen Weiner is operating it along with the aerial system and towers from the former cbc station from Nova Scotia on 7.415 medium wave AM between 40-41 meters radio new york international wbcq the planet running on 500 kws shortwave and 50 kw medium wave around 720 khz wxme with occasional broadcasts coming this summer from our radio ship the Alice a 102 f sailing vessel
Jes' - is Al Weiner still going with RNYI? I was broadcasting for him in the 1990s!
Gotta thank Ronan and Chicago for making this possible !! What did YOU think of the TX room Robertgo?
They were the days, although Caroline now broadcasts on 648 Khz with 1 kilowatt from Orford Ness, it will never be quite the same as it was then back in 1983 to 1990 when it was at anchor in the North Sea, but at least we now have something again.
Kudod to Peter Chicago for inventing the system which allowed two stations to broadcast from one ship. Radio England and Britain Radio had tried to do it in 1966 with only partial success, but Caroline proved it could be done successfully in 1973 and 1976-8 from the Mi Amigo, and from 1984-89 on the Ross Revenge.
Lee : combining 2 AM stations on 1 antenna is fairly common these days as many AM stations now co-locate to save money. WPAT AM 930 kHz shares its 4 tower antenna system with WNSW 1430 kHz at Clifton NJ.
Oh what wonderful days, RCA produced workhorse transmitters
Very good.
GREAT TIME GREATER GUYs AND.......BEST MUSIC
I enjoyed this 2 keep the videos coming there exellent Thanks
Superb!
Nice video. WOnder who the artist we heard in the end is? Anyone who knows?
Sinitta... So Macho was the song.
Sinita / So Macho.
Dat waren nog eens tijden ....
Hellava transmitter. Wish I had one. Anyone know the mod level they ran? Looks like 300% or more
Kwam ik aan met een simpele 250 watt fm zender dacht dat ik al heel wat had toen ik op een kilowatt zat en deze moest terug brengen naar 250 watt in stereo.
Dat waren nog eens tijden
good stuff.. very interesting.. thanks for the post
that is so cool.......
The narrator speaks about a 50kW RCA Ampliphase transmitter, but the cabinet label clearly shows BTA-5G (1:33) which is a 5kW transmitter. Oh well, who cares about 3dB ;-)
+Jan van der Knaap Je bedoelt waarschijnlijk 10dBW (=factor 10). Op 0:53 kun je trouwens zien dat ze ook een RCA STA-50H gebruiken die 50kW is. :)
The narrator also points out that there are two signals being transmitted. The first transmitter we see is the 50 kW (BTA50J IIRC) used for Monique by day and Caroline at night on 963 kHz. The 5kW (later upgraded to 10, I believe) carried Caroline's daytime service, originally on 576 kHz, and later on 558 after Laser closed down on that frequency.
I would have thought that switching between the transmitters at 50 times a second would have imposed a 50hz hum on the modulated signal it would be interesting to hear how this was dealt with
I've seen circuit of the actual combiner, which is a fairly straightforward tuned 3-port passive circuit. I don't think that has anything to do with 50Hz. Perhaps the monitoring was multiplexed?