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Questions About AM DX Tests

Steve Green NEPA

Steve Green NEPA

Someone(s) here are bound to know these things.
a. Can stations already on regular schedule overmight carry a one-hour test if it's non-commercial?
2. Are directional daytime-only stations allowed to test with omni power?
3. Would modulation limits be an issue? How about maximum transmitter TPO?
4. Are there any limitations on programming fare for such tests?

As members say in the National Radio Club : Just musing here.
 
Steve Green NEPA said:
Someone(s) here are bound to know these things.
a. Can stations already on regular schedule overmight carry a one-hour test if it's non-commercial?
2. Are directional daytime-only stations allowed to test with omni power?
3. Would modulation limits be an issue? How about maximum transmitter TPO?
4. Are there any limitations on programming fare for such tests?

As members say in the National Radio Club : Just musing here.
Click to expand...

It has to be non commercial but ity cant be on a regular basis, youd have a real hard time justifying a regular test

Stations can only test in a mode theyre licensed for.. if theyre directional 24/7, they cant go non directional.

as for #3, see above.. they cant test using parameters they arent at some point, licensed to use.

No progrmaming limitations, but we've run test material past an audiologist and thats why most tests include more code and sweep tones only.
 
SomeRadioGuy said:
It has to be non commercial but ity cant be on a regular basis, youd have a real hard time justifying a regular test
Click to expand...
Back in the day, nearly all stations not near one of the commercial frequency measurement services had monthly post-Midnight tests to do the then-required measurement. Those were as regular as clockwork.
SomeRadioGuy said:
Stations can only test in a mode theyre licensed for.. if theyre directional 24/7, they cant go non directional.
Click to expand...
In the post midnight test period, any facility can be employed. For example, if a station wants to have emergency ability to run with just one tower, it can test that facility.
SomeRadioGuy said:
as for #3, see above.. they cant test using parameters they arent at some point, licensed to use.
Click to expand...
Day power and pattern can be tested post midnight.
SomeRadioGuy said:
No progrmaming limitations, but we've run test material past an audiologist and thats why most tests include more code and sweep tones only.
Click to expand...
As long as the test can be justified as having the purpose of inspecting, reviewing, adjusting or correcting equipment, the door is pretty widely opened. One thing it can not do is operate above its highest licensed power except to test the tolerance of the transmitter.
 
Steve Green NEPA said:
Just one more question, folks (thanks for the responses, btw) :

5. Should or shall the FCC be notified beforehand ?
Click to expand...
No. Testing is allowed with rules as to the "test period" and requires no authorization. Back in the 60's and 70's, stations often tested as often as once a week. In the 40's WOR in NY was off the air overnight, but had staff there adjusting, cleaning, calibrating and testing all the time.
 
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