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Hey Guys,
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I know you're not in Southern California however, we've recently had the FCC issue Experimental Licenses to a company that is testing a Radar System with 10KW ERP causing interference to several Amateur Repeaters in the Los Angeles basin. The FCC Enforcement Bureau from the Cerritos Office was successful to get them off the air as we are Primary on the band.
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But, now the same company has received a Experimental License to conduct the same testing at the Yuma, Arizona proving grounds with an ERP of 7KW which will cause interference to 220 repeaters from Arizona to southern mountains bordering Imperial, San Diego, Riverside and even San Bernardino County. This is a serious threat to our spectrum and we need to protect it. If you were around during the UPS spectrum grab of 220-222MHz you'll know what I mean.
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I am the President of the 220 Spectrum Management Association which is the Radio Amateur organization who coordinates repeater channels in Southern California (). Please check this out, if this can happen in LA, it can and left uncheck will anywhere else.
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John N. Hudson III, WA6HYQ
iPhone: 6192648934
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Hi John,
I'm sorry to hear this news. Where is the ARRL in all of this?? The?ARRL often claims how much they do for ham radio and how they are the sole representative of amateur radio with the FCC!? Where is their ARRL WDC council?
Good Luck, dave wa3gin
On Sun, Mar 30, 2025 at 8:09?AM John N. Hudson III via <jake= [email protected]> wrote:
Hey Guys,
?
I know you're not in Southern California however, we've recently had the FCC issue Experimental Licenses to a company that is testing a Radar System with 10KW ERP causing interference to several Amateur Repeaters in the Los Angeles basin. The FCC Enforcement Bureau from the Cerritos Office was successful to get them off the air as we are Primary on the band.
?
But, now the same company has received a Experimental License to conduct the same testing at the Yuma, Arizona proving grounds with an ERP of 7KW which will cause interference to 220 repeaters from Arizona to southern mountains bordering Imperial, San Diego, Riverside and even San Bernardino County. This is a serious threat to our spectrum and we need to protect it. If you were around during the UPS spectrum grab of 220-222MHz you'll know what I mean.
?
I am the President of the 220 Spectrum Management Association which is the Radio Amateur organization who coordinates repeater channels in Southern California (). Please check this out, if this can happen in LA, it can and left uncheck will anywhere else.
?
John N. Hudson III, WA6HYQ
iPhone: 6192648934
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This is not that un-common.
There are STAs issued quite often for operations in and around multiple amateur bands.
toggle quoted message
Show quoted text
Hey Guys,
?
I know you're not in Southern California however, we've recently had the FCC issue Experimental Licenses to a company that is testing a Radar System with 10KW ERP causing interference to several Amateur Repeaters in the Los Angeles basin. The FCC Enforcement
Bureau from the Cerritos Office was successful to get them off the air as we are Primary on the band.
?
But, now the same company has received a Experimental License to conduct the same testing at the Yuma, Arizona proving grounds with an ERP of 7KW which will cause interference to 220 repeaters from Arizona to southern mountains bordering Imperial, San
Diego, Riverside and even San Bernardino County. This is a serious threat to our spectrum and we need to protect it. If you were around during the UPS spectrum grab of 220-222MHz you'll know what I mean.
?
I am the President of the 220 Spectrum Management Association which is the Radio Amateur organization who coordinates repeater channels in Southern California (). Please check
this out, if this can happen in LA, it can and left uncheck will anywhere else.
?
John N. Hudson III, WA6HYQ
iPhone: 6192648934
?
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Does anyone know the STA info and what specific frequency range the license is for? Is it actually within the 220 amateur band or adjacent? Either way its good for amateurs to make it known if any interference is detected and get that on record with the FCC and ARRL.?
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Bryan pointed out the STA info was included in the first post, thanks. I'm listening to the 220 band in SSB mode from So Cal right now and see what looks like radar from roughly 217 to 222MHz. When listening in the 222.000 to 222.050 range reserved for EME I am getting a little interference from the radar using an Icom R-8600 receiver and discone antenna.?
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I’m sure the ARRL is sitting there, wringing their hands and planning the next batch of mailings to go out and pander for additional funds. ? Mike WM4B ?
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From: [email protected] <[email protected]> On Behalf Of Dave Jordan via groups.io
Sent: Sunday, March 30, 2025 9:10 AM
To: [email protected]
Subject: Re: [repeater-builder] THREAT TO 222-225MHz Spectrum? Hi John, I'm sorry to hear this news. Where is the ARRL in all of this?? The?ARRL often claims how much they do for ham radio and how they are the sole representative of amateur radio with the FCC!? Where is their ARRL WDC council? ? On Sun, Mar 30, 2025 at 8:09?AM John N. Hudson III via <jake=[email protected]> wrote: I know you're not in Southern California however, we've recently had the FCC issue Experimental Licenses to a company that is testing a Radar System with 10KW ERP causing interference to several Amateur Repeaters in the Los Angeles basin. The FCC Enforcement Bureau from the Cerritos Office was successful to get them off the air as we are Primary on the band. But, now the same company has received a Experimental License to conduct the same testing at the Yuma, Arizona proving grounds with an ERP of 7KW which will cause interference to 220 repeaters from Arizona to southern mountains bordering Imperial, San Diego, Riverside and even San Bernardino County. This is a serious threat to our spectrum and we need to protect it. If you were around during the UPS spectrum grab of 220-222MHz you'll know what I mean. I am the President of the 220 Spectrum Management Association which is the Radio Amateur organization who coordinates repeater channels in Southern California (). Please check this out, if this can happen in LA, it can and left uncheck will anywhere else. John N. Hudson III, WA6HYQ
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+1 to that.
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You know, the ARRL isn't the end-all, be-all of amateur radio. No reason that a well-meaning group couldn't start another national association and weed out the corporate greed.
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Chris/AJM
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On Sun, Mar 30, 2025 at 11:30 AM, Mike Besemer - WM4B wrote:
I’m sure the ARRL is sitting there, wringing their hands and planning the next batch of mailings to go out and pander for additional funds.
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Mike
WM4B
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Chris Baldwin, CETSr. (KF6AJM)
Trustee - MetroNET Cal. Intertie (KB3PX)
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I consider this a National Threat because it started in Los Angeles where it’s cause great interference to the 222-225MHz spectrum and is now moving to Southwestern Arizona. Please remember Amateur Radio is primary on this spectrum, we do not share it will
the military. This experimentation should be conducted on NTIA Frequencies in military assigned spectrum Not Radio Amateur spectrum. While some HAMs don’t use the 222 MHz spectrum like other areas do it’s still spectrum assigned to us and where operations
such as pavepaws military UHF Radar has reduced UHF HAM operations, Note Sacramento, CA the 222-225MHz is a viable band for weak signal and repeater operations without radar.
If you experience interference, please use the link included in my letter to submit a complaint it’s the only way to stop the incursion and protect our spectrum.
John N. Hudson III, WA6HYQ
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On Mar 31, 2025, at 11:13, Chris Baldwin via groups.io <vtat1271@...> wrote:
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This Message is From an External Sender
This message came from outside your organization.
+1 to that.
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You know, the ARRL isn't the end-all, be-all of amateur radio. No reason that a well-meaning group couldn't start another national association and weed out the corporate greed.
?
Chris/AJM
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On Sun, Mar 30, 2025 at 11:30 AM, Mike Besemer - WM4B wrote:
I’m sure the ARRL is sitting there, wringing their hands and planning the next batch of mailings to go out and pander for additional funds.
?
Mike
WM4B
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--
Chris Baldwin, CETSr. (KF6AJM)
Trustee - MetroNET Cal. Intertie (KB3PX)
WARNING: Do not click links or attachments unless you recognize
the sender and know the email is safe.
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Consider this is a test of our resolve by those who stand to gain financial gain from the selling of the spectrum.? They will infringe on the known spectrum of radio amateurs to see how many squawk and file paperwork with their regional FCC Field office and then with the FCC HQ.? If the noise is weak to moderate, they move forward with their intended agenda to confiscate that particular section of spectrum at a very advantageous price.? Get busy writing to your Regional Field Office and the National HQ of the FCC and demand the protection of our spectrum that is used for a public service of backup communications.
Best Regards, Michael L Robinson, KC0TA
Trustee - K5HLA/R, Burnet County Texas
“In the beginning of a change the Patriot is a scarce man, and brave, and hated and scorned. When his cause succeeds, the timid join him, for then it costs nothing to be a Patriot.”
― Mark Twain
When Tyranny becomes Law, Revolution becomes Duty!
On Mon, Mar 31, 2025 at 2:24?PM Hudson, John@CalOES via <john.hudson= [email protected]> wrote:
I consider this a National Threat because it started in Los Angeles where it’s cause great interference to the 222-225MHz spectrum and is now moving to Southwestern Arizona. Please remember Amateur Radio is primary on this spectrum, we do not share it will
the military. This experimentation should be conducted on NTIA Frequencies in military assigned spectrum Not Radio Amateur spectrum. While some HAMs don’t use the 222 MHz spectrum like other areas do it’s still spectrum assigned to us and where operations
such as pavepaws military UHF Radar has reduced UHF HAM operations, Note Sacramento, CA the 222-225MHz is a viable band for weak signal and repeater operations without radar.
If you experience interference, please use the link included in my letter to submit a complaint it’s the only way to stop the incursion and protect our spectrum.
John N. Hudson III, WA6HYQ
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This Message is From an External Sender
This message came from outside your organization.
+1 to that.
?
You know, the ARRL isn't the end-all, be-all of amateur radio. No reason that a well-meaning group couldn't start another national association and weed out the corporate greed.
?
Chris/AJM
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On Sun, Mar 30, 2025 at 11:30 AM, Mike Besemer - WM4B wrote:
I’m sure the ARRL is sitting there, wringing their hands and planning the next batch of mailings to go out and pander for additional funds.
?
Mike
WM4B
?
--
Chris Baldwin, CETSr. (KF6AJM)
Trustee - MetroNET Cal. Intertie (KB3PX)
WARNING: Do not click links or attachments unless you recognize
the sender and know the email is safe.
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On Sun, Mar 30, 2025 at 05:08 AM, John N. Hudson III wrote:
Note the date of the post, April 1.
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73, ron, n9ee
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On Sun, Mar 30, 2025 at 05:08 AM, John N. Hudson III wrote:
WA6HYQ post on QRZ says nothing about being repeater coordinator or 220 Spectrum Management.? Also gives different email.
Nothing yet on the ARRL site about this.
Again note the date, April 1.
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73, ron, n9ee
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At 4/1/2025 01:11 PM, you wrote:
On Sun, Mar 30, 2025 at 05:08
AM, John N. Hudson III wrote:
- Note the date of the post, April 1.
No, it was March 29th.
Not a joke: I was interfered with by one of their multi-kW comb
generators when they were operating in LA.
Bob NO6B
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At 4/1/2025 01:31 PM, you wrote:
On Sun, Mar 30, 2025 at 05:08
AM, John N. Hudson III wrote:
- WA6HYQ post on QRZ says nothing about being repeater coordinator or
220 Spectrum Management.? Also gives different email.
I believe he is president of 220SMA (SoCal 220 coordinator)
Nothing yet on the
ARRL site about this.
I talked to a couple of ARRL officials about this at the local swap meet
last Saturday, & it was clear they were already aware of it.?
Keep watching...
Again note the
date, April 1.
Again note that the original post was March 29, not April 1.
Bob NO6B
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Geniuses. Give them an STA to operate IN THE BAND and expect them to not cause interference. Sounds like the federal government alright. Milair has their own band to operate in, why not do it there?
It's okay.. give it time, PTC-220 will be coming after 1.25m next anyways, since every railroad in the US is converting to the 220MHz band for all essential wayside functions.. it'll get jammed fast, and they'll need more bandwith, if they don't already.. they're already getting the boot out of the 800/900 segment by Anterix anyways, because 3MHz x 3MHz isn't enough spectrum for private broadband deployment, allegedly.
Mike
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You might be right.? But have not heard of radars operating in 220 MHz, too low freq and need very large antennas.? Know there are radars that can be interfered with from our 440 MHz band, the reason limited to 50W unless get permission to use higher power.
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But today is not good day to be posting such.? I'll really believe it from other sources.
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73, ron, n9ee
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At 4/1/2025 02:14 PM, you wrote:
You might be right.? But
have not heard of radars operating in 220 MHz, too low freq and need very
large antennas.
When I first started using 220 in the early 1980s we were still sharing
that band with conventional pulse radar, & I do remember hearing it
on top of users.? Not often, but it was there.? So no not too
low freq.
? Know there
are radars that can be interfered with from our 440 MHz band, the reason
limited to 50W unless get permission to use higher
power.
I don't think that's the reason we're limited to 50 watts.? IIRC it
was to protect flight termination systems, used to sent destruct signals
to missiles/rockets that went off course.
Bob NO6B
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Nothing new..in the early 80s we had offshore radio location under an experimental license in the UHF...10KW Pulsed wideband and center carrier of 439.200...wiped out the input of our local ATV rptr, which I was half owner...we tracked one down to a tower on the Gulf of Mexico and the license was posted there ..the company, based out of the UK , offered to buy us "amateur hams" linear amplifiers!! NNNOOOOO that wasn't going to fix anything...finally got them off the band since they were secondary to part 97 users under the license...
Chris WB5ITT?
Geniuses. Give them an STA to operate IN THE BAND and expect them to not cause interference. Sounds like the federal government alright. Milair has their own band to operate in, why not do it there?
It's okay.. give it time, PTC-220 will be coming after 1.25m next anyways, since every railroad in the US is converting to the 220MHz band for all essential wayside functions.. it'll get jammed fast, and they'll need more bandwith, if they don't already.. they're already getting the boot out of the 800/900 segment by Anterix anyways, because 3MHz x 3MHz isn't enough spectrum for private broadband deployment, allegedly.
Mike
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Check this group out:
Just heard about it I don’t know if they’re any better than the ARRL but maybe they will give them a run for their money.?
Martin L. Grillo EMT-P, CIC, EMC
COM L Inst. / ITSL(t) / COM?T / INTD / INCM / RADO / AUXC Inst
W1EMR / Amateur Extra?
PGGB063396 / GROL/ R
8 EMS - 37 PAPD - 23 NYPD - 343 FDNY
Never forget our Brother & Sister Heroes 9/11/01.?
It was not how they died that made them heroes.....
It was how they lived!
?
Emergency Medical Rescue of New York City's?30th Anniversary 1995 - 2025
Website?
Telephone?718 474 0680
Email:?info@...
On Tue, Apr 1, 2025 at 17:39 Chris Boone WB5ITT via <setxtelecom= [email protected]> wrote: Nothing new..in the early 80s we had offshore radio location under an experimental license in the UHF...10KW Pulsed wideband and center carrier of 439.200...wiped out the input of our local ATV rptr, which I was half owner...we tracked one down to a tower on the Gulf of Mexico and the license was posted there ..the company, based out of the UK , offered to buy us "amateur hams" linear amplifiers!! NNNOOOOO that wasn't going to fix anything...finally got them off the band since they were secondary to part 97 users under the license...
Chris WB5ITT?
Geniuses. Give them an STA to operate IN THE BAND and expect them to not cause interference. Sounds like the federal government alright. Milair has their own band to operate in, why not do it there?
It's okay.. give it time, PTC-220 will be coming after 1.25m next anyways, since every railroad in the US is converting to the 220MHz band for all essential wayside functions.. it'll get jammed fast, and they'll need more bandwith, if they don't already.. they're already getting the boot out of the 800/900 segment by Anterix anyways, because 3MHz x 3MHz isn't enough spectrum for private broadband deployment, allegedly.
Mike
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Remember guys that it's not just us hams that may be interfered with either.
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Up here in Oregon the 217 to 219 MHz range is heavily used by the Electric power company for Their Tier II capacty plus DMR system.
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If we also make other non ham users of the band aware that they will also suffer then this could help us out.
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John N. Hudson III
Dave Jordan
Mike Besemer - WM4B
Chris Baldwin
Hudson, John@CalOES
Chris Boone WB5ITT