Not sure if that is the same manufacturer from the 70s that was using repurposed TV antennas.?
That actually works to a great extent, but the SWR variations may be too wide for transmitting.?
Still you can take a standard design antenna and do some pruning and matching to improve on
the SWR performance if you got tired of the TV.?
|
Re: QUANTAR VHF Audio Interface...
All I can say is check the menu options on the radio. Both the Yaesu FT8800 and FT-8900 list wide/narrow as a mic/deviation setting. It is global for each band. Best I can tell it does nothing to the RX, so not truly wideband/narrowband.
"Someone" questioned me about a ham rig that they had and I looked it up and it had low/medium/high mic level settings. I do not recall what rig, but the individual refused to change it anyway, even after I gave them the menu number.
I also know of some radios that have no adjustment.
Chuck
WB2EDV
toggle quoted message
Show quoted text
On 11/6/2022 1:24 PM, Jim Barbour wrote: Honestly, I'd be hard pressed to find a made-for-ham rig that has a mic gain adjustment. It is something that has finally made it's way back into many of the better commercial rigs though.
On 11/6/2022 9:24 AM, Chuck Kelsey wrote:
I have to agree about users not being trainable on audio and microphone technique. It has developed into a big problem. Some guys blast the microphone while others hold it at arm's length. Asking them to adjust their microphone gain results in them thinking that I've asked them to redesign their radio. You mention the issue, they adjust for a couple transmissions, then go back to their old ways. Ugggg!
Chuck
WB2EDV
I consider the repeater a repeater for all users, not just those that have the technical ability and knowledge to adjust mic gain and deviation, or speak from the diaphragm and always use proper mic technique. Not to put anyone down, but trying to get users to correct audio issues is a fruitless adventure. I choose to take care of the problem on my end, where I have the ability to do something about it and sleep at night. Besides, it makes for a better "user experience" and the user doesn't have to put up with me nagging on them to fix their audio problems.
|
Re: Occupied bandwidth - (was Windows 7 config)
I agree with Aspinwall's thought.?
Just because someone got a license by memorizing some Q n A doesn't absolve any responsibility for damage.?
You don't get plausible deniability just because you don't know what you're doing.
ARRL and FCC both have clauses that refer to "good amateur practice" and in my mind, this speaks to being
able to test and verify the signal quality of one's emissions.? Site owners also have been instituting tightened
standards for communications equipment.? When these ideas are disregarded, then rules get tightened because
experimenters are making the same bad mistakes over and over again.? I just heard of a site that just did an
inspection and found a guy sneaked in some of his ham friends and now they all owe a whole lot of money for?
back rent and got tossed out the door.? Since this tower owner owns a LOT of sites, look out people.
Note that even if specs and standards are met, there may be problems that still must be corrected.
Experimenting is OK, but when you take it off the dummy load, you are responsible for emissions.? When you put
something on a mountain top,? you might create a lot of damage and hatred for hams before being found out.?
Plausible deniability won't fix it.
The other thing I notice, is that some people come here for advice before they even learn how to test and
troubleshoot for themselves.? That can be a long process of training and experience you can't get from Dear Abby.?
I welcome someone asking the question, because we can't know it all.? Asking for help is a good thing.? We should
try to discern when someone is in over their head and suggest they step back and study up on some things before
trying to save the day with a quick quip.
On Sun, Nov 6, 2022 at 08:20 AM, Jim Aspinwall wrote:
"... weak area for many hams." - amen.? This is at the forefront of many evolving discussions.
I'm no where near the level of expertise and experience of most/all here, but in the band-planning and repeater coordination world I/we need to absorb, understand and reference a lot of this as some/many in the ham community want accommodations for or to "sneak in" some generic piece of ham gear to promote/expand/implement more narrow-band digital gear and modes amid the analog FM world.?
For a stand-alone 'experiment' whatever desired or incidental results of occupied bandwidth may not matter much.? It's when we 'present' our work amid the shared/coordinated spectrum with others (just have to have that new repeater...) that all the specs and standards become essential.
If the ARRL or anyone else has ever addressed this at some point, it needs to be re-visited, and if not, authored and put out there.
Thank you!!
?
|
Re: QUANTAR VHF Audio Interface...
Many of the dual-band radios have mic gain settings. It may only be low-med-high, but they do have it.
Mick - W7CAT
toggle quoted message
Show quoted text
----- Original Message ----- From: "Jim Barbour" To: [email protected]Sent: Sunday, November 06, 2022 11:24:29 AM Subject: Re: [repeater-builder] QUANTAR VHF Audio Interface... Honestly, I'd be hard pressed to find a made-for-ham rig that has a mic
gain adjustment. It is something that has finally made it's way back
into many of the better commercial rigs though.
On 11/6/2022 9:24 AM, Chuck Kelsey wrote:
I have to agree about users not being trainable on audio and microphone technique. It has developed into a big problem. Some guys blast the
microphone while others hold it at arm's length. Asking them to adjust
their microphone gain results in them thinking that I've asked them to
redesign their radio. You mention the issue, they adjust for a couple
transmissions, then go back to their old ways. Ugggg!
Chuck
WB2EDV
I consider the repeater a repeater for all users, not just those that
have the technical ability and knowledge to adjust mic gain and
deviation, or speak from the diaphragm and always use proper mic
technique. Not to put anyone down, but trying to get users to correct
audio issues is a fruitless adventure. I choose to take care of the
problem on my end, where I have the ability to do something about it
and sleep at night. Besides, it makes for a better "user experience"
and the user doesn't have to put up with me nagging on them to fix
their audio problems.
-- Untitled Document
|
Re: Yearly support request - Repeater Builder? website - W3KKC
|
Re: QUANTAR VHF Audio Interface...
Honestly, I'd be hard pressed to find a made-for-ham rig that has a mic gain adjustment. It is something that has finally made it's way back into many of the better commercial rigs though.
toggle quoted message
Show quoted text
On 11/6/2022 9:24 AM, Chuck Kelsey wrote: I have to agree about users not being trainable on audio and microphone technique. It has developed into a big problem. Some guys blast the microphone while others hold it at arm's length. Asking them to adjust their microphone gain results in them thinking that I've asked them to redesign their radio. You mention the issue, they adjust for a couple transmissions, then go back to their old ways. Ugggg!
Chuck
WB2EDV
I consider the repeater a repeater for all users, not just those that have the technical ability and knowledge to adjust mic gain and deviation, or speak from the diaphragm and always use proper mic technique. Not to put anyone down, but trying to get users to correct audio issues is a fruitless adventure. I choose to take care of the problem on my end, where I have the ability to do something about it and sleep at night. Besides, it makes for a better "user experience" and the user doesn't have to put up with me nagging on them to fix their audio problems.
|
Re: Quintron Corporation / Glenayre 70cm pager transmitter & Power Supply. Need info.
Yes Joe, that's it. Where/how could I get a copy of the manual or schematics.? I'm only using the last stage 90watt amp driven by 25 watts from a CDM750. I tested with 3 watts (from a Bowfeng) into the 10watt board driving the 90watt board, but couldn't come up with a 10db 25 watt attenuator from the CDM750, so just driving straight into only the 90 watt board. If anyone has use for the other (non-amp) boards, they are free. Frank N6CES
Does this look like the PA board layout?? This is from the Quintron
QT-6700 manual.
Joe
|
Re: Occupied bandwidth - (was Windows 7 config)
"... weak area for many hams." - amen.? This is at the forefront of many evolving discussions.
I'm no where near the level of expertise and experience of most/all here, but in the band-planning and repeater coordination world I/we need to absorb, understand and reference a lot of this as some/many in the ham community want accommodations for or to "sneak in" some generic piece of ham gear to promote/expand/implement more narrow-band digital gear and modes amid the analog FM world.?
For a stand-alone 'experiment' whatever desired or incidental results of occupied bandwidth may not matter much.? It's when we 'present' our work amid the shared/coordinated spectrum with others (just have to have that new repeater...) that all the specs and standards become essential.
If the ARRL or anyone else has ever addressed this at some point, it needs to be re-visited, and if not, authored and put out there.
Thank you!!
?
|
Amen to that Bruce....a single tower is usually pretty easy to work with using the ATU at the base...but in a Directional Array, it can be a nasty issue.... Stations at the low end of the band have taller towers than those at the high end of the band and are usually directional. The shorter towers are somewhat useless as you can find a higher communications tower.. More and more AM operators are looking at leasing out space on their towers to cell operators... But I doubt they would be open to allowing a ham or even commercial repeater on it. Not enough money ?
Chris WB5ITT?
On Sun, Nov 6, 2022, 8:49 AM Burt K6OQK < biwa@...> wrote: Please be aware that using an Iso-coupler or installing any antenna on an AM tower can change the impedance of the tower and trigger the need for a proof, especially if you're doing this on a tower that's part of a directional antenna system.? The Iso-coupler will add a shunt capacitance to the tower and the antenna can also change the base impedance and current distribution of a tower.??
An ISO-coil can add a shunt inductance and may need a parallel capacitor to detune it at the stations operating frequency.
Be careful when fooling with AM towers.
Burt, K6OQK
|
Please be aware that using an Iso-coupler or installing any antenna on an AM tower can change the impedance of the tower and trigger the need for a proof, especially if you're doing this on a tower that's part of a directional antenna system.? The Iso-coupler will add a shunt capacitance to the tower and the antenna can also change the base impedance and current distribution of a tower.??
An ISO-coil can add a shunt inductance and may need a parallel capacitor to detune it at the stations operating frequency.
Be careful when fooling with AM towers.
Burt, K6OQK
|
Re: QUANTAR VHF Audio Interface...
This variable audio issue isn't confined to amateur radio.? It's a big issue in public safety too.
?
Some users have good mic technique but many don't.? Police seem to be worse than fire.? It isn't acceptable for a public safety dispatcher to have to "ride the gain" so dispatch console products 'process' user audio.
?
Retired console equipment or components can be -re-tasked to amateur repeater service to provide consistent user audio on repeater outputs at minimal expense.
|
Re: QUANTAR VHF Audio Interface...
I have to agree about users not being trainable on audio and microphone technique. It has developed into a big problem. Some guys blast the microphone while others hold it at arm's length. Asking them to adjust their microphone gain results in them thinking that I've asked them to redesign their radio. You mention the issue, they adjust for a couple transmissions, then go back to their old ways. Ugggg!
Chuck
WB2EDV
toggle quoted message
Show quoted text
I consider the repeater a repeater for all users, not just those that have the technical ability and knowledge to adjust mic gain and deviation, or speak from the diaphragm and always use proper mic technique. Not to put anyone down, but trying to get users to correct audio issues is a fruitless adventure. I choose to take care of the problem on my end, where I have the ability to do something about it and sleep at night. Besides, it makes for a better "user experience" and the user doesn't have to put up with me nagging on them to fix their audio problems.
|
Re: Yearly support request - Repeater Builder? website - W3KKC
|
Re: Yearly support request - Repeater Builder? website - W3KKC
Done, Thanks for all you do Kevin!
--
Joe Orrico?
WB6HRO / WR6AAC Repeater System
|
Re: QUANTAR VHF Audio Interface...
Chris, I will not disagree with you, but it's just that you and I have different approaches to the on-going problems of audio levels of repeater users. I consider the W6MEP repeater a repeater for all users, not just those that have the technical ability and knowledge to adjust mic gain and deviation, or speak from the diaphragm and always use proper mic technique. Not to put anyone down, but trying to get users to correct audio issues can be a fruitless adventure. I choose to take care of the problem on my end, where I have the ability to do something about it and sleep at night. Besides, it makes for a better "user experience" and the user doesn't have to put up with me nagging on them to fix their audio problems. I will agree that a lot of the so called "processors" built in to some radios are junk. Don't base all processing on the junk ones. I've played with some of those radios, and most recently, the so called processing in a QUANTAR. It essentially just drives the masher a little harder and, in my opinion, makes for unpleasant sounding audio. I recently ran a stock QUANTAR for W6MEP for a little over a week and didn't care for the sound of it. Some users said it sounded fine, many complained. A lot of the opinions are based on the sound quality of the users receiver.? As they sometimes say in broadcasting, "The stations only sounds as good as the engineer's radio." Obtaining an older FM Optimod, such as the 8100A, is really not that difficult, especially if you're in the technical side of broadcasting like you and I. So many stations have upgraded to the latest Belch-Fire 7+ processors and have relegated their older (but excellent) Optimod 8100A's to the back shelf. Speak to them, it won't hurt to ask. Please, don't think for a moment that I had the money to spend for one, although I did re-cap and proof the one I'm using. Burt, K6OQK ***
Well, an 8100 is nice, especially with the XT chassis lol, but not everybody can afford an Optimod or Orban audio processor..... I have a 6300 but it's for sale... Kind of overkill for ham radio and my FM translator fell through so what the heck. My feeling is if somebody has a problem with their audio THEY need to fix it, not the repeater.... in my book, a repeater should do nothing to a user's audio except pass it as is. When I got my RC850, the first thing I did was pull out the AGC that was in there because I felt it was pumping the audio too much. And I never looked back.
|
Re: CAT WX-250 Programming Software
any news on this, as I am looking for one also...
|
Re: Quintron Corporation / Glenayre 70cm pager transmitter & Power Supply. Need info.
Does this look like the PA board layout? This is from the Quintron QT-6700 manual.
Joe
|
Re: Need documentation for SS-32M tone encoder
Nice list on R-B.? On the SS-32, there's just the basic drawing.? Here's the 4-page version for Mike as well.
-
Regards, Karl Shoemaker
To contact me, please visit SRG's web site at?
for the current email address.
|
Re: Yearly support request - Repeater Builder? website - W3KKC
|
Re: Need documentation for SS-32M tone encoder
On Fri, Nov 4, 2022 at 05:02 PM, Nate Bargmann wrote:
Good news!
I sent an email to Communications Specialists this afternoon and
received a reply from Randy with the instruction sheet for the SS-32M
attached. I will attach it to this email. Mike, I suspect you can add
it with the other SS-32 documentation.
Done ! Mike WA6ILQ
|
Chris Boone WB5ITT
Burt K6OQK
WB6HRO
Karl Shoemaker