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29th Mar 2015, 04:30
Replies: 3,529
Views: 4,935,605
Posted By Communicator

*WHICH* DRUGS - Cont'd

Not just interesting, but CRUCIAL.



The problem is MUCH worse than this - even if depression etc. is correctly diagnosed, treatment with common "anti-depressants" can lead to suicidal...
10th Jun 2014, 00:22
Replies: 11,824
Views: 21,313,547
Posted By Communicator

How is BFO Measured?

Jun stated:
I agree (and also previously stated in less detail) that pre-compensation values could readily be derived from observed Doppler shift in the download signal received from the...
9th Jun 2014, 20:35
Replies: 11,824
Views: 21,313,547
Posted By Communicator

Meaning of BFO Data

Kudos to everyone for finally publishing the Inmarsat "raw data". (BTW - Inmarsat is, of course, bound by its clients' instructions. MAS finally authorized the release of the data.)

Based on a...
9th Jun 2014, 04:19
Replies: 11,824
Views: 21,313,547
Posted By Communicator

Shadoko wrote This is an important point. ...

Shadoko wrote
This is an important point. Further comments:

(1) Conceptually, it is tidier to separate out:(a) the velocity component along the axis between the satellite and the aircraft...
10th Apr 2014, 03:11
Replies: 11,824
Views: 21,313,547
Posted By Communicator

Observed ULB Ultrasound Frequency Stability

Not so.

The frequency of sound transmitted by the ULB may be impacted by the water pressure etc. in which the transducer operates. However, for a stationary transmitter-receiver (hydrophone)...
10th Apr 2014, 01:49
Replies: 11,824
Views: 21,313,547
Posted By Communicator

Evaluation of ULB Signals

Given that the ultrasound signal exhibited very significant frequency deviation (about 33 kHz rather than the nominal 37.5 kHz) it is unlikely that the ultrasound signal itself is phase stable. ...
2nd Apr 2014, 19:53
Replies: 11,824
Views: 21,313,547
Posted By Communicator

Primary Radar Ignored - Malaysia's Baffling Initial Reaction

Another poster (D.S.) pointed out long ago that Malaysia was aware of the primary radar track on Day 1 - they referred to contact with MH370 having been lost at 2:40 am. This is the time when the...
2nd Apr 2014, 19:32
Replies: 11,824
Views: 21,313,547
Posted By Communicator

UK AAIB and Inmarsat Arcs

The published graphs are illogical and clearly misleading on their face.

I prefer to think that UK AAIB can do and is doing rather better than the pretty but grossly misleading graphs of spurious...
26th Mar 2014, 22:56
Replies: 11,824
Views: 21,313,547
Posted By Communicator

Hong Kong Paper Reports Kidnap/Crash Theory

The Chinese-language news item linked below refers to reports by the Hong Kong based Oriental Daily. The gist of that report is that after disabling other communications, Captain Zaharie Shah...
21st Mar 2014, 06:57
Replies: 11,824
Views: 21,313,547
Posted By Communicator

WSJ Story Reconsidered

I believe the original version of the WSJ story was based on the notion that substantive ACARS messages were received from the aircraft (by Boeing, Rolls Royce and perhaps MAS), and that those...
16th Mar 2014, 09:58
Replies: 11,824
Views: 21,313,547
Posted By Communicator

MAS Fined in New Zealand

This was probably mentioned here earlier, but MAS was actually fined by usually mild New Zealand.

According to the report below, MAS deliberately violated an order not to allow a named passenger...
16th Mar 2014, 09:13
Replies: 11,824
Views: 21,313,547
Posted By Communicator

Misc. Thoughts

1. Malaysian politics is turbulent and corrupt, but generally not violent.

2. The trustworthiness of Malaysia's current government is not beyond doubt in light of what has emerged in connection...
16th Mar 2014, 08:41
Replies: 11,824
Views: 21,313,547
Posted By Communicator

OTHR - Australian and Diego Garcia JORN Range Revisited

Post #4280 (http://www.pprune.org/rumours-news/535538-malaysian-airlines-mh370-contact-lost-214.html#post8379657) refers to Communicator's post #4062...
16th Mar 2014, 05:03
Replies: 11,824
Views: 21,313,547
Posted By Communicator

Malaysians Knew about Primary Radar on Day 1

D.S. pertinently reminded us that the Malaysian government must have instantly recognized the primary radar track as MH370 since the “last contact” time of 2.40 am initially disclosed by Malaysia...
15th Mar 2014, 21:26
Replies: 11,824
Views: 21,313,547
Posted By Communicator

Over-Reliance on Inmarsat Ping Data? Other Radio Signals?

Reading the Malaysian PM's statement as a whole, the thing that stands out is that it is carefully crafted to address an obvious question about the Malaysian government's handling of the matter:
...
15th Mar 2014, 19:00
Replies: 11,824
Views: 21,313,547
Posted By Communicator

Diego Garcia Radar Range

For reference - JORN in Australia publicly admits to 1,000 - 3,000 km for their OTHR system. Range would tend to be longer during the night and around dawn, but HF propagation is hard to predict. ...
15th Mar 2014, 09:47
Replies: 11,824
Views: 21,313,547
Posted By Communicator

ADS-B Hard to Jam

Like cell phones, ADS can be disrupted by jamming in interactive mode.

On the other hand, in one-way broadcast mode, ADS-B only transmits without waiting to receive any signals.

To jam the...
15th Mar 2014, 09:29
Replies: 11,824
Views: 21,313,547
Posted By Communicator

ACARS Data Switched Off, Satcom still ON

The ACARS data feed from the engine systems (for Rolls Royce) and other aircraft systems (sent to Boeing) stopped or was switched off.

The Satcom system (used by ACARS as an alternative to VHF...
15th Mar 2014, 08:54
Replies: 11,824
Views: 21,313,547
Posted By Communicator

Even more astonishing

It is, of course, all too easy to persuade oneself that one might have thought of X at the time: "hindsight is 20/20".

However, even bearing this principle in mind, it is breathtaking that the...
15th Mar 2014, 01:29
Replies: 11,824
Views: 21,313,547
Posted By Communicator

ACARS Pings

Exactly. The closest analogy is an email client (think Outlook) checking in with the server every few minutes, even when there are no messages. Note that BA and RR as final recipients would NOT SEE...
14th Mar 2014, 22:36
Replies: 11,824
Views: 21,313,547
Posted By Communicator

Radar Data from Neighboring Countries (Civilian & Military)?

There is a strange gap in news coverage relating to primary and "secondary" radar data collected by neighboring countries.

If the aircraft did indeed cross the northern part of peninsular...
14th Mar 2014, 07:44
Replies: 11,824
Views: 21,313,547
Posted By Communicator

GPS Receiver inside Cell Phones/Smartphones

Many smartphones include GPS functionality, but this is usually disabled to conserve power.

Presumably, there is an "NSA" function allowing the operator to turn on the GPS of a cell phone on a...
14th Mar 2014, 01:46
Replies: 11,824
Views: 21,313,547
Posted By Communicator

ACARS Access

There seem to be three separate issues in connection with ACARS that MAS senior management has been unclear about:

1. Human Messaging through ACARS

When MAS talks about ACARS, they are probably...
12th Mar 2014, 09:51
Replies: 11,824
Views: 21,313,547
Posted By Communicator

Mobile Phone Tracking

Nobody seems to have responded in any detail to the various points about pax phones.

It is common knowledge that many cell phones are left on during flights. Given the demographics, most MH370...
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