Sorry to be the bearer of bad news but John Rabson sent me the flg today from BT house magazine : BEACON AIDS SAFETY AT SEA BT is playing a key role in an initiative to deploy a navigational safety b
BT is playing a key role in an initiative to deploy a navigational safety beacon around the UK, Ireland and the Atlantic. The company has won a contract to deliver a trial long range navigation (Lora
BT is playing a key role in an initiative to deploy a navigational safety beacon around the UK, Ireland and the Atlantic. The company has won a contract to deliver a trial long range navigation (Lor
Bad news is often a different spin! I wish to hell this organisation ( in which I own stock) would get its corporate act together. In a recent article written up in a prestigious professional journal
Pat and all I think it's more a case of getting some cash in for Rugby over the next 2 years whilst they have to keep it going to complete the MSF 60kHz contract. It is the worst news I have heard fo
I think it is strategic value. There are many things that could happen to a satellite based system ranging from a really bad solar CME to ASAT weapons and jammers so it has been recognized that a bac
How diffiicult would it be to make a Loran gate to put in front of theRX? After all the station is fixed so you must, in principle, know when the pulses are due. The trouble is there isn't just one
Pat and all I think it's more a case of getting some cash in for Rugby over the next 2 years whilst they have to keep it going to complete the MSF 60kHz contract. It is the worst news I have heard f
We have 136 only on a "non-interference" basis so complaints of QRM from Loran would get us absolutely nowhere. Bit more information - it's only there until BT finally closes the site totally in 2007
Stewart, Re : Loran Blankers : It is not too difficult to build a blanker for Loran. I made one in the early days of the 136khz band to try it in comparison with antenna nulling techniques and it did
Stewart, Re : Loran Blankers : It is not too difficult to build a blanker for Loran. I made one in the early days of the 136khz band to try it in comparison with antenna nulling techniques and it di
Hi Walter and all, This is more complex than it appears. Yes, the series of 8 pulses only lasts 8 mS Well, on a master station, there is a ninth pulse with an extra millisecond gap, so you would need
Not true. For example, if you have a 100 watt CW transmitter with the key held down, the carrier power is 100 watts. Now, what happens when you send a string of dots (50% duty)? Your total power out
Not true. For example, if you have a 100 watt CW transmitter with the key held down, the carrier power is 100 watts. Now, what happens when you send a string of dots (50% duty)? Your total power out
For a dot lasting an hour, followed by a space lasting an hour and then repeated, the total power is 50 Watts, with 25W in the carrier, and the rest in the entire set of sidebands stretching out to i
For a dot lasting an hour, followed by a space lasting an hour and then repeated, the total power is 50 Watts, with 25W in the carrier, and the rest in the entire set of sidebands stretching out to i
