• Get involved.
    We want your input!
    Apply for Membership and join the conversations about everything related to broadcasting.

    After we receive your registration, a moderator will review it. After your registration is approved, you will be permitted to post.
    If you use a disposable or false email address, your registration will be rejected.

    After your membership is approved, please take a minute to tell us a little bit about yourself.
    https://www.radiodiscussions.com/forums/introduce-yourself.1088/

    Thanks in advance and have fun!
    RadioDiscussions Administrators

The Future - AM + Streaming only (no FM & HD)

Status
Not open for further replies.
No one in any nation of the world, including China itself, was prepared for what at the time was an untreatable highly contagious disease that propagated worldwide in less than 60 days.
Which was simultaneously a) completely harmless or b) who cares about old and immunocompromised people. I demand my Constitutional right to all-you-can-eat dine-in ribs.
 
Or... a brute force type of thing could be done...use drones/small airplanes to drop many AM/FM battery powered radios into affected areas and develop some sort of portable, fairly easy to assemble AM transmitter for FEMA (set up in a nearby unaffected area - possibly run with a diesel generator), maybe just a 10kW AM signal to provide emergency info.


Kirk Bayne
 
Or... a brute force type of thing could be done...use drones/small airplanes to drop many AM/FM battery powered radios into affected areas and develop some sort of portable, fairly easy to assemble AM transmitter for FEMA (set up in a nearby unaffected area - possibly run with a diesel generator), maybe just a 10kW AM signal to provide emergency info.


Kirk Bayne
Can I have some of what you're smoking? You're totally off the deep end. :ROFLMAO:
 
Or... a brute force type of thing could be done...use drones/small airplanes to drop many AM/FM battery powered radios into affected areas and develop some sort of portable, fairly easy to assemble AM transmitter for FEMA (set up in a nearby unaffected area - possibly run with a diesel generator), maybe just a 10kW AM signal to provide emergency info.
Such technology was used in the Kuwait conflict, where the military airlifted complete radio stations in trailer containers. They just raised a tower, threw some radials on the ground and tuned the antenna and were on the air in about a day. Not efficient as they could not lay a decent ground via plowing radial trenches and raising a taller tower, but it was fast.

Such a transmitter at very low power such as 10 kw has to be really close to the intended listener as a short stick, limited ground and, probably a low conductivity location will not cover very much.

And who has a couple of hundred thousand little battery powered radios sitting around waiting to be dropped in? Add cheap radios to a bad ground system, short tower and hasty installation and you are not going to be very effective.

Before you suggest this kind of impossible/impractical/inefficient sort of thing, why not ask one of the actual braodcast engineers here what workable solutions might exist.

Example: much more practical are airborne FM transmitters flying in a circular pattern over the area. That has been done... even as far back as over 50 years ago for an educational TV station in Indiana. And the military has such gear ready to go... one set was used for a temporary Radio Martí transmitter some years back.... and that one was AM, using a 1000 foot antenna hung from the airplane!
 
I was thinking that a ground based portable, assembled on site AM transmitter (+ cheap, dropped in AM battery radios) could be OTA all the time (depends only on the power source for the transmitter), aircraft with AM or FM transmitters seem like they would be a higher maintenance, weather dependent option.

I chose 10kW AM because, back in the early 1980s, traveling through Des Moines on I-80, KCs WHB 710 (10kW daytime) was as about as strong as a local AM station on the car radio even though the transmitter was ~200 miles away.

Seems like dropping small AM (maybe + FM) battery radios into affected areas is the key to dealing with this lack of a backup system problem, possibly a nearby existing high power AM station could be required to broadcast mostly emergency info instead of regular programming.


Kirk Bayne
 
Seems like dropping small AM (maybe + FM) battery radios into affected areas is the key to dealing with this lack of a backup system problem,

What do you mean by lack of backup system? The DHS has a plan:


Developing the emergency backup plan​

The case manager or care coordinator must discuss and develop emergency backup plans with the person and their legal representative (if applicable). The case manager or care coordinator will provide information to ensure the person can make an informed choice about the people, organizations, providers, services and technology that may be available to provide support during a staffing emergency.

The backup plan must focus on the person’s needs, desires and preferences for service delivery. The support the person chooses as part of their emergency backup plan does not need to include only formal supports and services. The person may choose to receive emergency backup support through assistive technologies, family members, friends, community organizations or other informal supports. Exploring preferences and choices with the person may lead to identifying unique and innovative backup support — something not necessarily part of their regular list of options. Each person’s strengths, needs and supports are unique. A backup plan should reflect each person’s individual circumstances and choices.

Important topics to discuss include, but are not limited to:

  • Plan for short-term staffing emergencies (e.g., staff are late, staff did not show up)
  • Plan for long-term staffing emergencies (e.g., staff resigned, staff are unable to work, primary caregiver is unable to care for the person, provider terminates services, residential site closes)
  • From whom the person wants to receive support during a staffing emergency (e.g., family, friends, organizations, providers, assistive technology, formal and informal caregivers)
  • What specific support the person needs and wants
  • When the support will occur (i.e., frequency, duration).
Planning for staffing emergencies in advance will help the person make an informed decision about the services and supports available to them.
 
I was thinking that a ground based portable, assembled on site AM transmitter (+ cheap, dropped in AM battery radios) could be OTA all the time (depends only on the power source for the transmitter), aircraft with AM or FM transmitters seem like they would be a higher maintenance, weather dependent option.
Actually, the Indiana TV operation ran all day, every school day, for several years.
I chose 10kW AM because, back in the early 1980s, traveling through Des Moines on I-80, KCs WHB 710 (10kW daytime) was as about as strong as a local AM station on the car radio even though the transmitter was ~200 miles away.
That' was a station with half-wave towers at about 500 feet high and an extensive ground system and tuner.. it would take months to build... and it was in an area with America's best ground conductivity and was on an amazing low frequency
Seems like dropping small AM (maybe + FM) battery radios into affected areas is the key to dealing with this lack of a backup system problem, possibly a nearby existing high power AM station could be required to broadcast mostly emergency info instead of regular programming.
In most of the world now there are no "nearby AM stations". And in much of the US, most of the AMs do not have enough power on a good low frequency to cover a devastated emergency area.

As I said before, "Before you suggest this kind of impossible/impractical/inefficient sort of thing, why not ask one of the actual braodcast engineers here what workable solutions might exist."
 
I was thinking that a ground based portable, assembled on site AM transmitter (+ cheap, dropped in AM battery radios) could be OTA all the time

What happens when the tower gets destroyed by a hurricane:

 
Actually, the Indiana TV operation ran all day, every school day, for several years.

True, I remember watching it in elementary school

As I said before, "Before you suggest this kind of impossible/impractical/inefficient sort of thing, why not ask one of the actual braodcast engineers here what workable solutions might exist."
True, I remember watching it in elementary school. Might have been the last year of operation
 
Last edited:
Kirk. old buddy, old pal, you do realize that there are people who no doubt didn't even turn off Netflix to watch severe weather coverage when tornadoes were bearing down on them, let alone find an AM radio, stand on their head to make an antenna, or any other Rube Goldberg thing you can come up with.
 
Battery powered AM (&FM?) radios (using AA batteries) could be stockpiled by FEMA, writing on the radios would explain how to use them.

Radios could be dropped and/or passed out at food and water centers, depending on the situation, aircraft based or ground based transmitters could be used.

I'm thinking fairly long term - when all radio and TV stations are off the air and all of the transmitting towers have been dismantled and all communications (point-to-mass and 1:1) use a single national wireless broadband network.

Anyway, considering that software continues to get more and more complex, it could be that a bored teenage hacker could take down part of the power grid and/or the (future) national broadband network for an extended period of time, and giving away emergency radios and maintaining a some means of transmitting to them seems like a necessary expense.


Kirk Bayne
 
I'm thinking fairly long term - when all radio and TV stations are off the air and all of the transmitting towers have been dismantled and all communications (point-to-mass and 1:1) use a single national wireless broadband network.

FYI there are lots of competing wireless broadband networks. Not just one. There are also underground fiber services that are competing with the towered systems. I have one in my neighborhood. And because of all the competition and money, there are lots of backups to those systems.
 
I don't see FM going off the air anytime in the near or far future. I could see IBOC (HD Radio) imploding completely though.
 
Status
Not open for further replies.


Back
Top Bottom