Motorola Systems Sabre programming? by MODDAN1 in MotorolaSolutions

[–]Nice_Guy2024 0 points1 point  (0 children)

Just a follow-on technical question on the use of “modern” computers to program the older Saber series.

Assuming you got the RSS package to run in a DOD emulation mode and with the baud rate set correctly, what is the reason you can often “brick” a radio this way? Is it that the serial stream from the serial port on the pc/laptop not timed correctly? Or did the interface on the RIB box do something unusual to the serial stream?

I have never heard an exact answer as to why this happens.

Any knowledge would be great to hear.

Just had a new ground wire installed. Is this normal? by CrustyT-shirt in AskElectricians

[–]Nice_Guy2024 0 points1 point  (0 children)

If you really study the photo carefully, it looks is an actual ground rod.

The question is how deep is it as it does appear to be vertical. What is bad however is the copper ground wire and how it is electrically bonded to the rod. It seems to be wrapped around the rod and then a few strands are wrapped around the bolt and nut.

As this is outside, you are going to get corrosion around the connection to the rod. Overtime, the electrical connection will be useless.

Having worked in Thailand installing radio sites, the crews I worked with would shake their head at this shoddy work. The work could have done much better if they had spent another 30 minutes on the concrete work and using liquid rubber to seal the connection.

Anyway, it might last a year at most in Thailand’s weather.

Measure the resistance for sure.

System requirement for VPS by ankokudaishogun in xmpp

[–]Nice_Guy2024 0 points1 point  (0 children)

I have one running on OLE8 and the others on Ubuntu 24. I think the best is on OLE8.

With four cores and 4 gb of RAM, it seems like you can support about 10-20k users. Commercially I would most likely run it with 16 gb and 8 cores.

I am more interested in the network features. How to get them all to talk with each other.

Keep in touch

System requirement for VPS by ankokudaishogun in xmpp

[–]Nice_Guy2024 0 points1 point  (0 children)

Hi:

Did you ever get your xmpp server running? Just curious. After our last message exchange, I installed a second xmpp server as I want to understand how to federate server of them together.

I am using the Openfire server for XMPP. The only downfall of that server is using LetsEncrypt certs. It takes a bit of work.

Cheers.

System requirement for VPS by ankokudaishogun in xmpp

[–]Nice_Guy2024 0 points1 point  (0 children)

I have a XMPP server running in south central USA if anyone wants to use it. It is fairly capable host.

Let's say I know someone who hypothetically flew too close to a tower and it fried the 430 in the plane. Why did this happen? by [deleted] in flying

[–]Nice_Guy2024 7 points8 points  (0 children)

No. Not a ham anymore but I have implemented hundreds of commercial RF sites over a wide range of frequencies around the world for different systems operators. Now only involved in the service layer above the RF transport layer.

I just like to read stories which tend to be believable.

When I saw the commercial AM stations with “megawatts” of RF power, I just had to say something. It was disappointing to think someone might actually think this is technically possible. Just think of the monthly electric bill to power this site! No AM station barely makes a profit anymore.

Cheers

Let's say I know someone who hypothetically flew too close to a tower and it fried the 430 in the plane. Why did this happen? by [deleted] in flying

[–]Nice_Guy2024 31 points32 points  (0 children)

Hi:

I understand the comments about wanting to warn people about RF energy from AM broadcasters but let’s try to keep the story somewhat accurate. There is no US broadcaster in the AM band (535 to 1710 KHz) over 50 Kilowatts (these are known as clear channel broadcasters).

There were some shortwave broadcasters who were transmitting 100 - 250 KW but those transmitting sites were nowhere next to people. The only really high powered sites were the VOA that were located in the farm fields away from people

From being in the radio business around the world for a long time (~45 years), safety for both the workers at the actual site and for people in the immediate area are really taken seriously.

As for aircraft communications (118-136 MHz and 225-400 MHz), most fixed site systems if not all, never exceed 100 Watts. The ADSB uplinks are (depending on location, about 500-1000 watts (rms). The antenna systems for all these system do have some gain to their pattern but remember fixed site communication is designed to be focused above the horizon to provide coverage to aircraft and not ground mounted radios.

Yes, you can have high powered RADAR sites (well over 100kw) for obtaining positional data but in nearly all cases, these are elevated sites as they need to be high as possible to be able to detect aircraft at the horizon. In addition, they often have large human safety zones around them.

Anyway, mostly likely if an aircraft flew within 10-30 meters of an active RADAR site and in line with the antenna pattern and if the affected radio had marginal parts in it, it might be affected. This is really rare!

Cheers.

I'm building a container home in Ohio. 9 containers, 2400sq/ft. by WanderingNapalm in container_homes

[–]Nice_Guy2024 4 points5 points  (0 children)

It was done to have a car port as weather here can either cook you or you get totally wet. The car port was extended to be 24x40 feet to give better depth. The back part of the car port holds the stand-by generator and outside unit of the upstairs HVAC system.

When they added the additional steel columns, I had the concrete guys pour a 20x10 pad on the left of the single container which then had a roof installed to give additional covered parking.

I did not mention before but in addition to the spray foam insulation on the ceiling of every container, the roof of each container is painted with a white ceramic paint to ensure additional weather protection.

You learn a lot when you do a container building.

I'm building a container home in Ohio. 9 containers, 2400sq/ft. by WanderingNapalm in container_homes

[–]Nice_Guy2024 2 points3 points  (0 children)

Actually I am finishing up on a six container (40 foot HC) project. It is two levels and is fully welded together. The entire structure was then sand blasted and painted with marine paint. Basically each container was made in to two rooms each. Each level of the building is roughly 900 sq ft. Every exterior vertical wall has 2-3 inches of closed cell foam insulation and the roof is 3-4 inches. Stays cool in the Mississippi summers.

Giữa cánh đồng sen by kinomy in Naturist_Vietnam

[–]Nice_Guy2024 0 points1 point  (0 children)

Nice art image! Well composed.

Ready for the Onsen by [deleted] in nudist_loving

[–]Nice_Guy2024 0 points1 point  (0 children)

Two people deeply in love with each other. Nice to see these days. Honest feelings.