Date   

Re: TNC Transmit Problem

George Miller W3GWM
 

I switched to TNC APRS and listened on my HT. I can hear data going out. Still nothing on the APRS Map. I think maybe I'm not being heard.


Re: TNC Transmit Problem

George Miller W3GWM
 

Still not sending data. I did a full reset my D700 and reloaded my code plug. Still not getting data out. Receiving ok.

My setting for APRS:
GPS Unit - NOT USED
Packet Path wide1-1,wide2-2
TX Interval 3 minutes
Data Band A
Packet Speed 1200
Digipeter Off
TNC set to TNC PKT (someone said not to use TNC APRS)

I'm just trying to send my data and see it on APRS.FI as an APRS station.

What am I doing wrong?


Re: D700 APRS mode Left Display shows busy

Lee Besing
 

I'll have to go back and re read it. I created it as an easy reminder on how to turn it on or off.

I have often used my d700 as a fill-in digipeater. It works quite well for that. I've been using my d710 for aprs, but I used to use my d700 with a TinyTrak3+ or TT4 for APRS.

Lee Besing
210-771-7075
San Antonio TX


-----Original Message-----
From: Bob KE6GYD <ke6gyd@...>
To: TMD700A@groups.io
Sent: Wed, 16 Feb 2022 9:29 AM
Subject: Re: [TMD700A] D700 APRS mode Left Display shows busy

Lee, 
I'm interested in using my D700 as a fill in digipeater.  Are you saying that you thought you had a document on a "How to?"  The pdf you attached is nicely done on how to set up X-Band and what looks like setting up the 700 to transmit APRS position, not as a digipeater.

Regards
Bob
KE6GYD


Re: D700 APRS mode Left Display shows busy

Camp
 

I hope you get (US) a answer! I've had the same issue for a year.
Gerald
KJ4SVL


Re: D700 APRS mode Left Display shows busy

Bob KE6GYD
 

Lee, 
I'm interested in using my D700 as a fill in digipeater.  Are you saying that you thought you had a document on a "How to?"  The pdf you attached is nicely done on how to set up X-Band and what looks like setting up the 700 to transmit APRS position, not as a digipeater.

Regards
Bob
KE6GYD


Re: D700 APRS Send

Adam Mahnke
 

First guess is that you're packet isn't making it to an igate. Do you have another radio that you can see if it's receiving you on? 

What are your path settings on the radio? 

Adam
KC2ANT

On Wed, Feb 16, 2022, 10:11 George Miller W3GWM via groups.io <w3gwm=ptd.net@groups.io> wrote:
I'm receiving packets from other stations, but I don't think I'm transmitting data. I see the Xmit key, but when I look on APRS.FI I see my weather station but not my APRS from the D700.

Any ideas?


D700 APRS Send

George Miller W3GWM
 

I'm receiving packets from other stations, but I don't think I'm transmitting data. I see the Xmit key, but when I look on APRS.FI I see my weather station but not my APRS from the D700.

Any ideas?


Re: D700 APRS mode Left Display shows busy

Lee Besing
 

George, I think this 2 page PDF file has just the instructions for setting up crossband mode & for turning it on & off.  I keep a copy in the suitcase where I store my D700 when not in use, along with the cables I use for Packet operation.

It's only about 23k in size, so it ought not blow up this group's email. LOL

Perhaps if the admins like it, somebody might add it to the files upload section for future reference.

I also have a full collection of all of the manuals in electronic form as well.

Hope it helps.

Lee Besing, N5NTG
210-771-7075
San Antonio TX


-----Original Message-----
From: "George Miller W3GWM via groups.io" <w3gwm@...>
To: TMD700A@groups.io
Sent: Wed, 16 Feb 2022 12:49 AM
Subject: [TMD700A] D700 APRS mode Left Display shows busy

I’m trying to set up my D700 for a Digipeter. I’ve followed the steps and the “A” channel is “busy”. Adjusting squelch doesn’t fix it. Any suggestions? I saw this problem discussed before but no one seems to have been helpful.


Re: D700 APRS mode Left Display shows busy

Lee Besing
 

George, send me a direct email and I'll send you the pdf guide on how to set it up in digipeater mode.  I use my D700A like that oit in Big Bend Ranch State Park when we help put on the Big Bend 50 Ultra Marathon (cross country trail run out in the desert).


Lee Besing, N5NTG
lee@...
210-771-7075
San Antonio TX


-----Original Message-----
From: "George Miller W3GWM via groups.io" <w3gwm@...>
To: TMD700A@groups.io
Sent: Wed, 16 Feb 2022 12:49 AM
Subject: [TMD700A] D700 APRS mode Left Display shows busy

I’m trying to set up my D700 for a Digipeter. I’ve followed the steps and the “A” channel is “busy”. Adjusting squelch doesn’t fix it. Any suggestions? I saw this problem discussed before but no one seems to have been helpful.


D700 APRS mode Left Display shows busy

George Miller W3GWM
 

I’m trying to set up my D700 for a Digipeter. I’ve followed the steps and the “A” channel is “busy”. Adjusting squelch doesn’t fix it. Any suggestions? I saw this problem discussed before but no one seems to have been helpful.


Re: s-meter reading?

 

I found this interesting, when I set up all my radios, I have always used 50mv signal to set the S-meter to S9, but that is for an SSB or CW radio! While an S-meter is not important on FM because we use Q1-Q5, Q1 very noisy - Q-5 full quieting, the S-meter functionality wasn't  of concern! I never gave any thought to my 3 TMD-700A(G) or 2 TM-271A's! 
When I have a couple of minutes I'm going to set all my meters, why? I have no idea, except you guys got my interest! 😀

de RON K1VSC


Re: s-meter reading?

Brad (KE7HFP)
 

Thanks for the insights.  I never really thought about this before.  The only reason this came up is because I'm studying for my general, and one of the refresher topics was on reporting signal strength with an s-meter.  That got me wondering how I would report this with my radio?  I'm a visual person so I put together this graphical representation approximating of the Kenwood s-meter bars on the s-unit chart.  I guess I also have too much time on my hands if I'm doing this.  At any rate sounds like the best report is "1 bar means a weaker signal and all bars means a lot of signals."

Thanks!


 


Re: s-meter reading?

Brian / KB5EO
 

Sorry, I should have included that the TM-D700 service manual calibration procedure specifies that S1 is represented by one segment at -118 dBm and all segments should show for S7 at -96 dBm.

The S-unit to signal strength chart I've always used differs from Don's a bit (https://www.giangrandi.ch/electronics/radio/smeter.shtml), so that would make the Kenwood specs correspond to a range from S5-ish to S8.5-ish if you go by the values I use.


On Tue, Feb 8, 2022 at 11:45 AM Brian Beuershausen <KB5EO.radio@...> wrote:
Don Rolph's reply is right on.  I've "calibrated" many of my S-meters (including my TM-D700) in my lab using properly calibrated RF power sensors.  In my experience, it's most practical to think of even a "calibrated" S-meter as measuring in "grains of salt".  I find the linearity (logarity?  LOL) of digital S-meters to be no better than old mechanical movements.

Most S-meters are as precise as a hand grenade, but their value as a relative indicator between various signals on the same receiver is excellent -- calibrated or not.  Having a weird number of bars (like 5 or 7) is frustrating when you're trying to tell someone their signal level on your rig though.  Just gotta live with the ambiguity, I suppose.

-- Brian / KB5EO

On Mon, Feb 7, 2022 at 7:30 PM Don Rolph <don.rolph@...> wrote:
I was provided the following data for the D710G/A

Email from J. D. Barron jeter.d.barron@... via group.io to main, Nov. 18, 2021, 2:01 PM:

“1 bar means a weaker signal and all bars means a lot of signals.
I don't think that the correlation to a relative S meter reading is particularly meaningful, especially as it makes little difference if the signal is strong enough for full quieting. 
Full Scale 144 MHZ  –96dBm (3.54µV)
Full Scale 440 MHZ   –96dBm (3.54µV)
Min Scale 144 MHZ  –118dBm (0.28µV)
Min Scale 440 MHZ  –118dBm (0.28µV)
Other bands may vary 
As far as S meters and calibration I never thought much about it myself.”


The S meter scale is typically:


https://en.wikipedia.org/wiki/S_meter


  

image.png


so it looks like the D710G/A scale goes from about S1 to perhaps S5.


On Mon, Feb 7, 2022 at 8:20 PM Brad (KE7HFP) <BradBartz@...> wrote:

This is going to sound like a really silly question but how to you read the s-meter on a TMD700?  Generally, a S-meter will have 9 levels.  My Kenwood TH-F6 has 9 bars.   But on my TM-D700 it only has 7 bars?  Does it skip the first two and start at S3 or is there some other scaling?

 

Thanks.



--

73,
AB1PH
Don Rolph


Re: s-meter reading?

Brian / KB5EO
 

Don Rolph's reply is right on.  I've "calibrated" many of my S-meters (including my TM-D700) in my lab using properly calibrated RF power sensors.  In my experience, it's most practical to think of even a "calibrated" S-meter as measuring in "grains of salt".  I find the linearity (logarity?  LOL) of digital S-meters to be no better than old mechanical movements.

Most S-meters are as precise as a hand grenade, but their value as a relative indicator between various signals on the same receiver is excellent -- calibrated or not.  Having a weird number of bars (like 5 or 7) is frustrating when you're trying to tell someone their signal level on your rig though.  Just gotta live with the ambiguity, I suppose.

-- Brian / KB5EO


On Mon, Feb 7, 2022 at 7:30 PM Don Rolph <don.rolph@...> wrote:
I was provided the following data for the D710G/A

Email from J. D. Barron jeter.d.barron@... via group.io to main, Nov. 18, 2021, 2:01 PM:

“1 bar means a weaker signal and all bars means a lot of signals.
I don't think that the correlation to a relative S meter reading is particularly meaningful, especially as it makes little difference if the signal is strong enough for full quieting. 
Full Scale 144 MHZ  –96dBm (3.54µV)
Full Scale 440 MHZ   –96dBm (3.54µV)
Min Scale 144 MHZ  –118dBm (0.28µV)
Min Scale 440 MHZ  –118dBm (0.28µV)
Other bands may vary 
As far as S meters and calibration I never thought much about it myself.”


The S meter scale is typically:


https://en.wikipedia.org/wiki/S_meter


  

image.png


so it looks like the D710G/A scale goes from about S1 to perhaps S5.


On Mon, Feb 7, 2022 at 8:20 PM Brad (KE7HFP) <BradBartz@...> wrote:

This is going to sound like a really silly question but how to you read the s-meter on a TMD700?  Generally, a S-meter will have 9 levels.  My Kenwood TH-F6 has 9 bars.   But on my TM-D700 it only has 7 bars?  Does it skip the first two and start at S3 or is there some other scaling?

 

Thanks.



--

73,
AB1PH
Don Rolph


Re: s-meter reading?

Don Rolph
 

I was provided the following data for the D710G/A

Email from J. D. Barron jeter.d.barron@... via group.io to main, Nov. 18, 2021, 2:01 PM:

“1 bar means a weaker signal and all bars means a lot of signals.
I don't think that the correlation to a relative S meter reading is particularly meaningful, especially as it makes little difference if the signal is strong enough for full quieting. 
Full Scale 144 MHZ  –96dBm (3.54µV)
Full Scale 440 MHZ   –96dBm (3.54µV)
Min Scale 144 MHZ  –118dBm (0.28µV)
Min Scale 440 MHZ  –118dBm (0.28µV)
Other bands may vary 
As far as S meters and calibration I never thought much about it myself.”


The S meter scale is typically:


https://en.wikipedia.org/wiki/S_meter


  

image.png


so it looks like the D710G/A scale goes from about S1 to perhaps S5.


On Mon, Feb 7, 2022 at 8:20 PM Brad (KE7HFP) <BradBartz@...> wrote:

This is going to sound like a really silly question but how to you read the s-meter on a TMD700?  Generally, a S-meter will have 9 levels.  My Kenwood TH-F6 has 9 bars.   But on my TM-D700 it only has 7 bars?  Does it skip the first two and start at S3 or is there some other scaling?

 

Thanks.



--

73,
AB1PH
Don Rolph


s-meter reading?

Brad (KE7HFP)
 

This is going to sound like a really silly question but how to you read the s-meter on a TMD700?  Generally, a S-meter will have 9 levels.  My Kenwood TH-F6 has 9 bars.   But on my TM-D700 it only has 7 bars?  Does it skip the first two and start at S3 or is there some other scaling?

 

Thanks.


Re: D700 Cooling fan always runs

Tim Rodgers
 

My D710 fan starts as soon as I key up and will run for another two minutes after I unkey.


Re: D700 Cooling fan always runs

 

Next time fan gets noisy, peel the sticker off, drill a tiny hole if one is not already there, add 1 drop of 3n1 oil, all fixed! Replace sticker or add a day of silicon bathroom chalk


Re: D700 Cooling fan always runs

Barry Isseks
 

Normal for fan to run upon key up. Fan is fairly noisy, also normal. 

12

On Jan 25, 2022, at 2:49 PM, Ryan - K9NBG <schmilk@...> wrote:


If you need a new fan this is a great place for parts! https://www.pacparts.com/

On Tue, Jan 25, 2022, 4:22 PM Udo Visintini via groups.io <uvisintini=yahoo.com@groups.io> wrote:
Mine does the same, a few years ago I had to change the fan itself, because it came too noisy. I'm sure I got the fan from Kenwood, or Giga parts, good luck, 73 de kf4kul 


On Tue, Jan 25, 2022 at 9:45, wa6drd@...
<wa6drd@...> wrote:
The fan on my d700 always turns on the moment I key up. Is this normal, a setting change, or is it "malfunctioning"? It's a bit annoying as the fan is noisy. Wondering if anyone else has experienced this.
Kirk 
WA6DRD

--
Thanks and 73 de KF4KUL


Re: D700 Cooling fan always runs

Ryan - K9NBG
 

If you need a new fan this is a great place for parts! https://www.pacparts.com/


On Tue, Jan 25, 2022, 4:22 PM Udo Visintini via groups.io <uvisintini=yahoo.com@groups.io> wrote:
Mine does the same, a few years ago I had to change the fan itself, because it came too noisy. I'm sure I got the fan from Kenwood, or Giga parts, good luck, 73 de kf4kul 


On Tue, Jan 25, 2022 at 9:45, wa6drd@...
<wa6drd@...> wrote:
The fan on my d700 always turns on the moment I key up. Is this normal, a setting change, or is it "malfunctioning"? It's a bit annoying as the fan is noisy. Wondering if anyone else has experienced this.
Kirk 
WA6DRD

--
Thanks and 73 de KF4KUL

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