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Everything posted by SteveShannon
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GMRS Receives Crystal clear but transmits mostly static
SteveShannon replied to a topic in Guest Forum
I doubt it’s anything to do with your power cable. I wouldn’t even change it. Since the mag mount made no difference I don’t think it is your ground plane. Maybe the problem is the other end. Are both radios set for either wide or narrow band? They should match. Finally, I would try talking to a different radio. If the static persists then you have ruled out the other radio. -
Welcome, fellow Montanan.
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You are probably not wrong in your assumption. Your process of scanning is probably correct, but as Gortex2 pointed out the repeater might be sending its ID without any tones. That’s sometimes how repeaters are programmed in order to avoid breaking squelch for any receivers. Your explanation made sense. Record the Morse Code ID and see if you can understand it, or upload the recording here in case someone here can help you understand it.
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I reported your post, not to get you in trouble, but because it does seem as though he sees and acts on reported posts.
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I thought it was only available with a 4 cylinder.
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Wasn’t it the Chevy Vega that required the engine removed to replace the right rear plug?
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RF Spurious Emissions (aka Spurs) Example.
SteveShannon replied to marcspaz's topic in General Discussion
I couldn’t agree more. -
RF Spurious Emissions (aka Spurs) Example.
SteveShannon replied to marcspaz's topic in General Discussion
I was one of their first hires in 1991 and unfortunately they went toes up in ‘92. Like most startups it ran out of money before it could get to production. It was a great job, my first right after graduating, and I learned a lot about every aspect of both electronics and mechanical design of that particular total station. -
RF Spurious Emissions (aka Spurs) Example.
SteveShannon replied to marcspaz's topic in General Discussion
No, we were working for a startup company trying to come to market with an infrared laser surveying total station. He could do the digital or analog design like few people I’ve seen before or since. -
RF Spurious Emissions (aka Spurs) Example.
SteveShannon replied to marcspaz's topic in General Discussion
One of the very best chief engineers I ever worked under had no college degree and no P.E. He had been trained in communications by the US Navy, and he had the knack. -
Here’s more information about the company and products in a livestream format.
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RF Spurious Emissions (aka Spurs) Example.
SteveShannon replied to marcspaz's topic in General Discussion
SA is “spectrum analyzer” -
Petitioning to get a few VHF frequencies added to GMRS
SteveShannon replied to a topic in FCC Rules Discussion
This chart shows most things: https://www.ntia.doc.gov/files/ntia/publications/2003-allochrt.pdf Here’s an enlargement of one portion: -
Radios unavialable due to chip shortages?
SteveShannon replied to Lscott's topic in General Discussion
What does it demodulate then?- 34 replies
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Plus Signal Sticks are made in the USA by the guy who also runs HamStudy.
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GMRS Travel Channel (rant 2 of 3) Frequency choice criteria
SteveShannon replied to kirk5056's topic in General Discussion
If any kind of officiality is desired for things like this, GMRS users should first establish some kind of users group. Perhaps one even exists in stealth mode. Clearly the FCC intends GMRS to be used to provide traveler assistance: § 95.1731 Permissible GMRS uses. The operator of a GMRS station may use that station for two-way plain language voice communications with other GMRS stations and with FRS units concerning personal or business activities. (a)Emergency communications.Any GMRS channel may be used for emergency communications or for traveler assistance. Operators of GMRS stations must, at all times and on all channels, give priority to emergency communications. (b)One-way communications.The operator of a GMRS station may use that station to transmit one-way communications: (1)To call for help or transmit other emergency communications; (2)To provide warnings of hazardous road conditions to travelers; or, (3)To make brief test transmissions. (c)Travelers assistance.The operator of a GMRS station may transmit communications necessary to assist a traveler to reach a destination or to receive necessary services. (d)Digital data.GMRS hand-held portable units may transmit digital data containing location information, or requesting location information from one or more other GMRS or FRS units, or containing a brief text message to another specific GMRS or FRS unit -
RF Spurious Emissions (aka Spurs) Example.
SteveShannon replied to marcspaz's topic in General Discussion
The GT5R supposedly cleaned up spurious emissions: -
It’ll reset during the day. It is an odd limitation. Paying for premium membership was almost worth it just for that!
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GMRS Travel Channel (rant 2 of 3) Frequency choice criteria
SteveShannon replied to kirk5056's topic in General Discussion
@kirk5056 I enjoyed reading your post. It was well written and you did a nice job of summarizing the issues. Unfortunately, I agree with @WRUU653 that it probably won’t make any difference. -
Linked Home Repeater / Car Hotspot
SteveShannon replied to sjmahler's question in Technical Discussion
I’m not sure it matters. See the bold portion of the preceding quote. It says “or any other network…“ That seems pretty clear but I’d like to point out that the actual wording in the regulations are not phrased that way. -
Linked Home Repeater / Car Hotspot
SteveShannon replied to sjmahler's question in Technical Discussion
Here’s what the fcc site says: “You can expect a communications range of one to twenty-five miles depending on station class, terrain and repeater use. You cannot directly interconnect a GMRS station with the telephone network or any other network for the purpose of carrying GMRS communications, but these networks can be used for remote control of repeater stations.” https://www.fcc.gov/wireless/bureau-divisions/mobility-division/general-mobile-radio-service-gmrs -
Mounting antenna mast to a garage
SteveShannon replied to VETCOMMS's question in Technical Discussion
I think that would result in more torque on the mount than it’s intended to withstand. An additional brace would probably help with that. Here’s what I would suggest: https://www.solidsignal.com/easy-up-heavy-duty-y-type-antenna-mast-wall-mount-12in-standoff-ez30-12?utm_source=google&utm_medium=cse&utm_term=EZ30-12&gclid=CjwKCAiA3pugBhAwEiwAWFzwdY3qda-oqw_61X7TGKwQCM9Jm1N6tpqQHhbTkktLu-QhkUMi76GtphoCZO4QAvD_BwE but that’s a lightweight mount. DXEngineering has similar mounting brackets for heavy masts. I order cables from DXEngineering, Gigaparts, or Ham Radio Outlet. DXEngineering will build to suit. -
Radios unavialable due to chip shortages?
SteveShannon replied to Lscott's topic in General Discussion
I have a friend with a 400 who’s disappointed because it has had some problems. I don’t know exactly what they are. If a person doesn’t need C4FM, the ftm6000 looks like a decent radio.- 34 replies
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Radios unavialable due to chip shortages?
SteveShannon replied to Lscott's topic in General Discussion
Or the FTM300. Is there anything the 400 or 500 do that the 300 doesn’t?- 34 replies
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