Date   
Re: Allowing radio to be turned on/off by ignition power

John and Brenda Kintz <jkbk@...>
 

myoungarc wrote:
I have currently rewired my radio to work with the ignition power through via a relay. I am not drawing power through a ignition source, but to turn on and off a relay. Is this safe for the radio to be cut of power each time I turn the vehicle off or is using the power button to power on and off the unit safer and better option? Basically I want to know is it safe for the radio to have the power be turned off without turning off the radio first?
I'd say it's probably safe to switch the radio this way... I've been doing it with mine for more than 5 years without a problem.

John
AC4JK

Re: Allowing radio to be turned on/off by ignition power

Brad Smith <lists.nospam@...>
 

I've been doing it that way for years, with no apparent ill effect. I have a similar circuit, except there's a little timer that runs the relay for about five minutes after I turn off the car, so that APRS will have a chance to beacon once or twice more that I've "arrived". The radio power goes via this relay direct to the battery with decent-gauge wire. My circuit also has an "override" switch so I can leave it on indefinitely (ie. if I'm running cross-band outside the car).

The only thing I sometimes see is if I restart the car during this five minutes (ie. the radio is still running), then the short voltage drop when the starter kicks in *may* cause the display to go blank. The radio works, and next time I go through a full shutdown, it restarts properly.

Brad
VE3BSM

--- In TMD700A@..., "myoungarc" <myoungarc@...> wrote:

I have currently rewired my radio to work with the ignition power through via a relay. I am not drawing power through a ignition source, but to turn on and off a relay. Is this safe for the radio to be cut of power each time I turn the vehicle off or is using the power button to power on and off the unit safer and better option? Basically I want to know is it safe for the radio to have the power be turned off without turning off the radio first?

Re: Opinion- Replace D700A with D710A

Bob Burns W9RXR <w9rxr_@...>
 

Quoting David Struebel <wb2ftx@...>:

Anyone provide a side by side comparison of the two Kenwoods to
see what the added features are in the D710A?
I've been using a TM-D700 for about five years and bought a TM-D710 at
Dayton last weekend. I've been playing around with the D710 on the
bench, so my experience is limited, but these are the differences I've
found:

D710 has one more key across the bottom of the front panel. Some of
the key functions are the same as the D700, but others have been
remapped. I'm still learning the differences.

Of those keys, two of them can be reconfigured by the user to do
different functions. The D700 had not user-configurable keys on the
front panel.

In general, there is more information displayed on the D710 compared
to the D700, especially in APRS mode.

To access the D710 TNC with a computer, you have to plug into the
control head, not the body like on the D700.

The GPS jack is on the D710 control head, not the body like the D700.

The MIC jack is on the side of the D710 body, not the front like on the D700.

D710 has WB4APR's Decay Algorithm and Proportional Pathing tools to
cut down on network traffic. D710 also has SmartBeaconing with
CornerPegging (see www.hamhud.net for info on this).

D710 can store more APRS position reports (100, I think).

D710 can sort the list of APRS position reports and apply some simple
filters to that list.

D710 will show you some of the path that the report used to get to you.

D710 can do V/U, V/V, and U/U bands like the D700, but can also do U/V.

D710 has 1000 memories. I think the D700 only has 200.

D710 will tune to repeaters that are transmitted as APRS objects.

I'm sure I've just scratched the surface, but I'm at the bottom of the
D710 learning curve. The D710 may replace the D700 in my primary
vehicle this weekend, so I'll ride that curve pretty fast over the
next week.

Bob...

USB Adapter

Rod,VE1BSK
 

Data coming to my USB only net book via a prolific type cable appears on my UI-View32 Terminal Screen but (apparently) the Init commands do not take the data to the map screen or the other UI-View32 features that I get with a serial laptop. Does the USB system require different Init Commands or is there some other issue involved? Please & tks,Rod,VE1BSK

Re: Wanted -APRS Cable for AvMap G4T and TM-D700A

David Struebel
 

Thanks to all that responded... I now have an APRS cable for
the AvMap G4T on the way in the mail.

Dave WB2FTX

In TMD700A@..., "David Struebel" <wb2ftx@...> wrote:


Just bought a used AvMap G4T, unfortunately it did
not come with the cable to attach it to my D700A. I understand
that this cable requires 4 connections on the GPS side.
Anyone know where I can get one locally in the US.
I tried AvMap in Italy but they want a fortune for it
plus shipping, plus I don't want to give them my credit
card data over the internet and their on line shopping is out
of service at this point.

Dave WB2FTX

Opinion- Replace D700A with D710A

David Struebel
 

I have two Kenwood TM-D700A's and two TH-D7A(G)s... Just recently
acquired an AvMap G4T.. now with the expanded capabilities of
the AvMap, is there anything I'm missing by not having a D710A?
Anyone provide a side by side comparison of the two Kenwoods to
see what the added features are in the D710A?

Dave WB2FTX

Allowing radio to be turned on/off by ignition power

myoungarc
 

I have currently rewired my radio to work with the ignition power through via a relay. I am not drawing power through a ignition source, but to turn on and off a relay. Is this safe for the radio to be cut of power each time I turn the vehicle off or is using the power button to power on and off the unit safer and better option? Basically I want to know is it safe for the radio to have the power be turned off without turning off the radio first?

Wanted -APRS Cable for AvMap G4T and TM-D700A

David Struebel
 

Just bought a used AvMap G4T, unfortunately it did
not come with the cable to attach it to my D700A. I understand
that this cable requires 4 connections on the GPS side.
Anyone know where I can get one locally in the US.
I tried AvMap in Italy but they want a fortune for it
plus shipping, plus I don't want to give them my credit
card data over the internet and their on line shopping is out
of service at this point.

Dave WB2FTX

MC53 vs MC58

kk2ed <kk2ed@...>
 

Can anyone tell me which is the MC53 and which is the MC58? I have two mics here. One has a case that is a little more to the grey side (lighter than the molded cord strain relief and cord itself), and the other is full black ( the mic housing is the same color as the cord and strain relief).

It seems as though the grey one has better audio.

Thanks
Eric
KE2D

Re: D700A Head

noskosteve
 

Hi Mike,

You can do your own investigation to see this behavior. Originally, I thought this behavior was a function of Auto-PM Store, but testing showed it was different. I just did the test over again to make sure I wasn't blowing steam. It behaves as I report in the PM OFF mode whether Auto Store is on or off. I haven't done the test in any of the numbered PMs. I expect they will behave as expected consistent with the Auto PM Store setting.

It's as if PM OFF has only Auto-Store OFF after the disconnect and the disconnect loads the radio state data into the "PM OFF" registers.

At first I figured it was just that PM OFF was just another PM (since via CAT OFF is PM 0), but with Auto Store on, the radio state PM data should change when you change the radio and then it should come up where you left it (due to the auto-store), but it doesn't. It wakes in the pre-head-disconnect state.

Another possible confusion factor is that you can't use the power button to turn off the radio after doing the disconnect sequence because it destroys this behavior. The PWR button power sown sequence reloads the PM OFF registers with the current state.


Also...
Are you sure it was me you told about the PS 1 code you wrote? I don't remember discussing CAT PS for the D700 recently and don't see it in a search of the mail. Maybe I caught dementia from my mother-in-law (:-)

I had previously done power on code for the TS-2000, but that was probably two years ago. Writing CAT for several radios has its drawbacks... (;-)

Writing code for saving and restoring the D700 PMs is tricky. There are no PM specific commands.

73, Steve, K9DCI

--- In TMD700A@..., "Michael Champion" <mikec@...> wrote:

This is a function of the PMs. The radio will always come back to the PM program. To have the radio come back to the same state as when it was turned off then you need to turn off the PM.

-Michael Champion

-----Original Message-----
From: Steve <noskosteve@...>
Sent: Thursday, May 14, 2009 11:20 PM
To: TMD700A@... <TMD700A@...>
Subject: [TMD700A] Re: D700A Head



I didn't explain well enough. I am referring to powering up by applying power, NOT by pushing the power button.

By turning it off with the power button, it comes up where you left it, as you say.

By doing the head disconnedt trick. it comes up (when power is applied) WHERE YOU DID THE DISCONNECT...REGARDLESS of where you left is when you turned off the ignition.

This way, it ALWAYS comes up one specific way, regardless where/how you left it.

Therefore, when I stopped, if I was operating on an unusual repeater, when I get back in the car and TURN ON THE IGNITION, it will power up without pushing the button and be back on my favorite repeater or scanning my favorite repeaters or where I left it when I did the disconnect. *Regardless* of how I had it when I turned the ignition off.
It's in one and only one defined state every time I turn on the ignition.

Is that clearer?

73, Steve, K9DCI


--- In TMD700A@..., Dave <bluesoftail_98@> wrote:

If you power down (with power button) while scanning it will power up scanning. No need to disconnect the head.

--- On Thu, 5/7/09, Steve <noskosteve@> wrote:

From: Steve <noskosteve@>
Subject: [TMD700A] Re: D700A Head
To: TMD700A@...
Date: Thursday, May 7, 2009, 6:29 PM



I first accidently disconnected the control head while the radio was on. The radio powers-down after a few seconds. You hear it clunk in the speaker.



I found that the radio will subsequently power up in the state it was left in when the head was disconnected, if the head is connected before power is restored. (This may be due to having Auto-PM Save enabled) I started doing this intentionally since I like to have the radio power up scanning my favorite channels - and never had any problems.

However, there have been reports of this causing a fuse to blow and/or breaking something else. When I heard this, I considered adding a switch to switch off the power lead to the head, but never tried it.



I gotta try sending a Power On command with the head disconnected. I am surprised that works, but is interesting. ..



73, Steve, K9DCI



--- In TMD700A@yahoogroups .com, "Michael Champion" <mikec@> wrote:

No there is a rumor that unplugging and plugging the head in while it
has power applied to the radio can blow the internal fuse.
From: TMD700A@yahoogroups .com [mailto:TMD700A@yahoogroups .com] On Behalf
Of tablacom
Sent: Monday, May 04, 2009 1:14 PM
To: TMD700A@yahoogroups .com
Subject: [TMD700A] Re: D700A Head
I gather you're saying a fuse might blow on the internal board in the
main unit if the control head is not present when the unit powers up?
Hmmm, odd.






























[Non-text portions of this message have been removed]

Re: Operating WITHOUT the Control Head is Possible

noskosteve
 

Hi Mike,

What baud rate are you running?

I used an Excel workbook (VBA) I wrote that sends it all at once with no delays between any of characters. I'm also using 9600. I did quite a bit of mucking about and reported what I saw. I tried two other characters with similar results, but the CR is the safest since the radio will ignore lone CRs, whereas with other characters, if the processor wakes in the middle of the command, it may balk, or at least give an error. Do you read what the radio responds with?

I did see some conditions where the radio turns on, but responds with "?" rather than PS 1.


73, Steve

--- In TMD700A@..., "Michael Champion" <mikec@...> wrote:

My visual basic program just sends PS1 3 times. But I told you that about
2 weeks ago when you orignally asked.

-Michael Champion

-----Original Message-----
From: Steve <noskosteve@...>
Sent: Friday, May 15, 2009 12:04 AM
To: TMD700A@... <TMD700A@...>
Subject: [TMD700A] Operating WITHOUT the Control Head is Possible



I posted this separately from the recent thread so future searches can spot it easier from the subject. Perhaps it should go in the Files Area.

The following applies WITH or WITHOUT the Control Head connected.

You can turn on the radio from the serial port. The command is simple ASCII "PS 1" no quotes, end with a Carrage Return (CR)character. In Hex this is &h50 &h53 &h20 &h31 &h0D.

HOWEVER ONE WON"T DO IT.

It appears to be an issue of having serial port activity for some time period because of the following observations.

Typing manually with Hyperterm, it takes only 2 or 3 PS 1 commands.

Testing at 9600 baud, it takes about 35 characters to wake up the processor to then accept the command.

I found that sending 35 or more CRs followed by the PS 1 CR does it. In HEX this is 35 &h0D's then &h50 &h53 &h20 &h31 &h0D. You can use other characters, but if you have more than 35 before the PS 1 command, the radio will balk at the command and respond with "?". The number 35 seems to be different slightly for different characters. Sending complete PS 1 commands takes 8 of them which is 36 characters before the final command.
Sending from 32 to 34 CRs in the "prefix" will turn on the radio, but it responds with "?". This is not recommended, use = or > 35.

I did find some variations from the 35 character "prefix" that would both power up the radio and respond with a "?". Then, subsequently sending any other command resulted in receiving a PS 1 from the radio. It has to get that out of it's system, so to speak.

When the radio powers up, it responds with the same thing as the command, namely "PS 1".

I also found some variations (usially 2 or 3 less characters) that did NOT power up the radio, but responded with the "?".

Less than about 30 or 31 characters of prefix has no effect (no response from radio).

I did not do any exhaustive testing of other commands once powered up sans head, but a few worked normally, so It's a safe bet that everything that can normally be done from the serial port works and pretty much normal radio control is possible. I know that there are some things that can only be done with the Control Head, however, I do not have a complete list compiled.

I also have an Excel spreadsheet that does control and memories including ALL PMs. I'll have to add the power up sequence in the future.

Other key words for a search.
Head stolen missing

73, Steve, K9DCI

Re: D700 MCP crashes

sailingto <sailingto@...>
 

Perhaps you've found an anser to your problem by now, and not sure what you mean by "MCP software crashes" do you mean the computer locks up? the program shuts down? OR you get an error msg?

I get error msgs - after chasing a lot of stuff, it does seem like the TNC in my D700 has gone bad - doesn't communicate with the computer using any of the radio/computer programs, or any of the TNC programs. Could you have a similar problem?

Good luck finding a cure/cause.

73 de Ken H> K9FV

--- In TMD700A@..., "sitkabustclub" <nw5s@...> wrote:

Couldn't find any relevant info while doing a cursory search through the archives.

It's been a while since I've used the MCP to read and write data from and to the D700A, but I seem to be having trouble saving data to file after reading the radio. I can chose the floppy disk icon, save or save as and the MCP software crashes after typing in a name for the file and selecting 'ok' or save. Anyone seen this issue before?

Windows 98 SE is the current OS on a 486 laptop with 128mb of ram.

Best regards,

Bruce
nw5s

Re: Operating WITHOUT the Control Head is Possible

Michael Champion <mikec@...>
 

My visual basic program just sends PS1 3 times. But I told you that about
2 weeks ago when you orignally asked.

-Michael Champion

-----Original Message-----
From: Steve <noskosteve@...>
Sent: Friday, May 15, 2009 12:04 AM
To: TMD700A@... <TMD700A@...>
Subject: [TMD700A] Operating WITHOUT the Control Head is Possible



I posted this separately from the recent thread so future searches can spot it easier from the subject. Perhaps it should go in the Files Area.

The following applies WITH or WITHOUT the Control Head connected.

You can turn on the radio from the serial port. The command is simple ASCII "PS 1" no quotes, end with a Carrage Return (CR)character. In Hex this is &h50 &h53 &h20 &h31 &h0D.

HOWEVER ONE WON"T DO IT.

It appears to be an issue of having serial port activity for some time period because of the following observations.

Typing manually with Hyperterm, it takes only 2 or 3 PS 1 commands.

Testing at 9600 baud, it takes about 35 characters to wake up the processor to then accept the command.

I found that sending 35 or more CRs followed by the PS 1 CR does it. In HEX this is 35 &h0D's then &h50 &h53 &h20 &h31 &h0D. You can use other characters, but if you have more than 35 before the PS 1 command, the radio will balk at the command and respond with "?". The number 35 seems to be different slightly for different characters. Sending complete PS 1 commands takes 8 of them which is 36 characters before the final command.
Sending from 32 to 34 CRs in the "prefix" will turn on the radio, but it responds with "?". This is not recommended, use = or > 35.

I did find some variations from the 35 character "prefix" that would both power up the radio and respond with a "?". Then, subsequently sending any other command resulted in receiving a PS 1 from the radio. It has to get that out of it's system, so to speak.

When the radio powers up, it responds with the same thing as the command, namely "PS 1".

I also found some variations (usially 2 or 3 less characters) that did NOT power up the radio, but responded with the "?".

Less than about 30 or 31 characters of prefix has no effect (no response from radio).

I did not do any exhaustive testing of other commands once powered up sans head, but a few worked normally, so It's a safe bet that everything that can normally be done from the serial port works and pretty much normal radio control is possible. I know that there are some things that can only be done with the Control Head, however, I do not have a complete list compiled.

I also have an Excel spreadsheet that does control and memories including ALL PMs. I'll have to add the power up sequence in the future.

Other key words for a search.
Head stolen missing

73, Steve, K9DCI

Re: D700A Head

Michael Champion <mikec@...>
 

This is a function of the PMs. The radio will always come back to the PM program. To have the radio come back to the same state as when it was turned off then you need to turn off the PM.

-Michael Champion

-----Original Message-----
From: Steve <noskosteve@...>
Sent: Thursday, May 14, 2009 11:20 PM
To: TMD700A@... <TMD700A@...>
Subject: [TMD700A] Re: D700A Head



I didn't explain well enough. I am referring to powering up by applying power, NOT by pushing the power button.

By turning it off with the power button, it comes up where you left it, as you say.

By doing the head disconnedt trick. it comes up (when power is applied) WHERE YOU DID THE DISCONNECT...REGARDLESS of where you left is when you turned off the ignition.

This way, it ALWAYS comes up one specific way, regardless where/how you left it.

Therefore, when I stopped, if I was operating on an unusual repeater, when I get back in the car and TURN ON THE IGNITION, it will power up without pushing the button and be back on my favorite repeater or scanning my favorite repeaters or where I left it when I did the disconnect. *Regardless* of how I had it when I turned the ignition off.
It's in one and only one defined state every time I turn on the ignition.

Is that clearer?

73, Steve, K9DCI


--- In TMD700A@..., Dave <bluesoftail_98@...> wrote:

If you power down (with power button) while scanning it will power up scanning. No need to disconnect the head.

--- On Thu, 5/7/09, Steve <noskosteve@...> wrote:

From: Steve <noskosteve@...>
Subject: [TMD700A] Re: D700A Head
To: TMD700A@...
Date: Thursday, May 7, 2009, 6:29 PM



I first accidently disconnected the control head while the radio was on. The radio powers-down after a few seconds. You hear it clunk in the speaker.



I found that the radio will subsequently power up in the state it was left in when the head was disconnected, if the head is connected before power is restored. (This may be due to having Auto-PM Save enabled) I started doing this intentionally since I like to have the radio power up scanning my favorite channels - and never had any problems.

However, there have been reports of this causing a fuse to blow and/or breaking something else. When I heard this, I considered adding a switch to switch off the power lead to the head, but never tried it.



I gotta try sending a Power On command with the head disconnected. I am surprised that works, but is interesting. ..



73, Steve, K9DCI



--- In TMD700A@yahoogroups .com, "Michael Champion" <mikec@> wrote:

No there is a rumor that unplugging and plugging the head in while it
has power applied to the radio can blow the internal fuse.
From: TMD700A@yahoogroups .com [mailto:TMD700A@yahoogroups .com] On Behalf
Of tablacom
Sent: Monday, May 04, 2009 1:14 PM
To: TMD700A@yahoogroups .com
Subject: [TMD700A] Re: D700A Head
I gather you're saying a fuse might blow on the internal board in the
main unit if the control head is not present when the unit powers up?
Hmmm, odd.































Re: INFO: D700 operation without Control Head

noskosteve
 

--- In TMD700A@..., "Steve" <noskosteve@...> wrote:



I don't know if
Please excuse double post. Cockpit error.

73, Steve, K9DCI

INFO: D700 operation without Control Head

noskosteve
 

I don't know if this has been hashed out before, but a recent question on the D700 Yahoo group prompted a bit of an investigation.

The following applies WITH or WITHOUT the Control Head connected.

You can turn on the radio from the serial port. The command is simple ASCII "PS 1" no quotes, end with a Carrage Return (CR)character. In Hex this is &h50 &h53 &h20 &h31 &h0D.

HOWEVER ONE WON"T DO IT.

It appears to be an issue of having serial port activity for some time period because of the following observations.

Typing manually with Hyperterm, it takes 2 or 3 PS 1 commands.

Testing at 9600 baud, it takes about 35 characters to wake up the processor to then accept the command.

I found that sending 35 or more CRs followed by the PS 1 CR works well. In HEX this is 35 &h0D's then &h50 &h53 &h20 &h31 &h0D.

You can use other characters, but if you have more than 35 before the PS 1 command, the radio will balk at the command and respond with "?". The number 35 seems to be slightly different for different characters. Sending complete PS 1 commands takes 8 of them which is 36 characters before the final command.
Sending from 32 to 34 CRs in the "prefix" will turn on the radio, but it responds with "?". This is not recommended, use = or > 35.

I did find some variations from the 35 character "prefix" that would both power up the radio and respond with a "?". Then, subsequently sending any other command resulted in receiving a PS 1 from the radio. It has to get that out of it's system, so to speak.

When the radio powers up, it responds with the same thing as the command, namely "PS 1".

I also found some variations (usially 2 or 3 less characters) that did NOT power up the radio, but responded with the "?".

Less than about 30 or 31 characters of prefix has no effect (no response from radio).

I did not do any exhaustive testing of other commands once powered up sans head, but a few worked normally, so It's a safe bet that everything that can normally be done from the serial port works and pretty much normal radio control is possible. I know that there are some things that can only be done with the Control Head, however, I do not have a complete list compiled.

I also have a free for the download Excel spreadsheet that does control and memories including ALL PMs. I'll have to add the power up sequence and basic volume and squelch capability in the future.

Other key words for a search.
Head stolen missing

73, Steve, K9DCI
k9dci.home.comcast.com

Operating WITHOUT the Control Head is Possible

noskosteve
 

I posted this separately from the recent thread so future searches can spot it easier from the subject. Perhaps it should go in the Files Area.

The following applies WITH or WITHOUT the Control Head connected.

You can turn on the radio from the serial port. The command is simple ASCII "PS 1" no quotes, end with a Carrage Return (CR)character. In Hex this is &h50 &h53 &h20 &h31 &h0D.

HOWEVER ONE WON"T DO IT.

It appears to be an issue of having serial port activity for some time period because of the following observations.

Typing manually with Hyperterm, it takes only 2 or 3 PS 1 commands.

Testing at 9600 baud, it takes about 35 characters to wake up the processor to then accept the command.

I found that sending 35 or more CRs followed by the PS 1 CR does it. In HEX this is 35 &h0D's then &h50 &h53 &h20 &h31 &h0D. You can use other characters, but if you have more than 35 before the PS 1 command, the radio will balk at the command and respond with "?". The number 35 seems to be different slightly for different characters. Sending complete PS 1 commands takes 8 of them which is 36 characters before the final command.
Sending from 32 to 34 CRs in the "prefix" will turn on the radio, but it responds with "?". This is not recommended, use = or > 35.

I did find some variations from the 35 character "prefix" that would both power up the radio and respond with a "?". Then, subsequently sending any other command resulted in receiving a PS 1 from the radio. It has to get that out of it's system, so to speak.

When the radio powers up, it responds with the same thing as the command, namely "PS 1".

I also found some variations (usially 2 or 3 less characters) that did NOT power up the radio, but responded with the "?".

Less than about 30 or 31 characters of prefix has no effect (no response from radio).

I did not do any exhaustive testing of other commands once powered up sans head, but a few worked normally, so It's a safe bet that everything that can normally be done from the serial port works and pretty much normal radio control is possible. I know that there are some things that can only be done with the Control Head, however, I do not have a complete list compiled.

I also have an Excel spreadsheet that does control and memories including ALL PMs. I'll have to add the power up sequence in the future.

Other key words for a search.
Head stolen missing

73, Steve, K9DCI

Re: D700A Head

noskosteve
 

I didn't explain well enough. I am referring to powering up by applying power, NOT by pushing the power button.

By turning it off with the power button, it comes up where you left it, as you say.

By doing the head disconnedt trick. it comes up (when power is applied) WHERE YOU DID THE DISCONNECT...REGARDLESS of where you left is when you turned off the ignition.

This way, it ALWAYS comes up one specific way, regardless where/how you left it.

Therefore, when I stopped, if I was operating on an unusual repeater, when I get back in the car and TURN ON THE IGNITION, it will power up without pushing the button and be back on my favorite repeater or scanning my favorite repeaters or where I left it when I did the disconnect. *Regardless* of how I had it when I turned the ignition off.
It's in one and only one defined state every time I turn on the ignition.

Is that clearer?

73, Steve, K9DCI

--- In TMD700A@..., Dave <bluesoftail_98@...> wrote:

If you power down (with power button) while scanning it will power up scanning. No need to disconnect the head.

--- On Thu, 5/7/09, Steve <noskosteve@...> wrote:

From: Steve <noskosteve@...>
Subject: [TMD700A] Re: D700A Head
To: TMD700A@...
Date: Thursday, May 7, 2009, 6:29 PM



I first accidently disconnected the control head while the radio was on. The radio powers-down after a few seconds. You hear it clunk in the speaker.



I found that the radio will subsequently power up in the state it was left in when the head was disconnected, if the head is connected before power is restored. (This may be due to having Auto-PM Save enabled) I started doing this intentionally since I like to have the radio power up scanning my favorite channels - and never had any problems.

However, there have been reports of this causing a fuse to blow and/or breaking something else. When I heard this, I considered adding a switch to switch off the power lead to the head, but never tried it.



I gotta try sending a Power On command with the head disconnected. I am surprised that works, but is interesting. ..



73, Steve, K9DCI



--- In TMD700A@yahoogroups .com, "Michael Champion" <mikec@> wrote:

No there is a rumor that unplugging and plugging the head in while it
has power applied to the radio can blow the internal fuse.
From: TMD700A@yahoogroups .com [mailto:TMD700A@yahoogroups .com] On Behalf
Of tablacom
Sent: Monday, May 04, 2009 1:14 PM
To: TMD700A@yahoogroups .com
Subject: [TMD700A] Re: D700A Head
I gather you're saying a fuse might blow on the internal board in the
main unit if the control head is not present when the unit powers up?
Hmmm, odd.






























[Non-text portions of this message have been removed]

Re: TM-D700 Coding for Controller Programming.

noskosteve
 

Kevin,
I believe Jim Gill is the originator of this information. Several versions have propagated on the net and I have found a few differences. I also did some of my own investigation and found further detail on some commands which were incomplete.
I have an Excel Spreadsheet with what I believe is the most complete set of commands that I will provide. If you have any questions, I may be able to answer some as I have an Excel workbook which does serial I/O to domall menories as well as control - and the information is relatively fresh in my mind.

73, Steve, K9DCI

This may be the original data:
http://www.on7lds.net/auto/tmd700a.htm

http://www.qsl.net/ta1dx/kenwood/thd7kom.htm

--- In TMD700A@..., "Michael Champion" <mikec@...> wrote:

http://www.qsl.net/k7jar/pages/D700Cmds.html



Google is your friend.



From: TMD700A@... [mailto:TMD700A@...] On Behalf
Of Gmail - Kevin, Natalia, Stacey & Rochelle
Sent: Saturday, May 09, 2009 3:03 PM
To: TMD700A@...
Subject: [TMD700A] TM-D700 Coding for Controller Programming.








Hi All,

I am in need of some help?

I have a repeater controller that has the ability to send out serial
(RS-232) coding.
I used to have a Doug Hall RBI-1 interface for remote switching, but
have parted with this.
I have a TM-D700 radio that I would like to try and interface.
Looking at the connection I believe this would be possible.
But I need to understand the serial codes that control the radio.
Once I have this I can then make a few macros which can have added data
control the radio.

Does anyone have a list of the computer code they would part to me?

Regards

Kevin.

Re: TM-D700 Coding for Controller Programming.

Michael Champion <mikec@...>
 

http://www.qsl.net/k7jar/pages/D700Cmds.html



Google is your friend.



From: TMD700A@... [mailto:TMD700A@...] On Behalf
Of Gmail - Kevin, Natalia, Stacey & Rochelle
Sent: Saturday, May 09, 2009 3:03 PM
To: TMD700A@...
Subject: [TMD700A] TM-D700 Coding for Controller Programming.








Hi All,

I am in need of some help?

I have a repeater controller that has the ability to send out serial
(RS-232) coding.
I used to have a Doug Hall RBI-1 interface for remote switching, but
have parted with this.
I have a TM-D700 radio that I would like to try and interface.
Looking at the connection I believe this would be possible.
But I need to understand the serial codes that control the radio.
Once I have this I can then make a few macros which can have added data
control the radio.

Does anyone have a list of the computer code they would part to me?

Regards

Kevin.