Date   
Serial cable question

Glenn Dixon <dixonge@...>
 

So I want to connect from my PC to my radio to do some memory channel programming, etc. I bought a female-to-female null modem cable. Will this work or will I need a crossover?

D700 Turns Itself Off

Steve Agee <n5zua@...>
 

I had a similar problem and finally tracked it down to a defective fuse. The fuse looked OK but upon closer inspection, the end cap was loose and the connection to the filament was barely attached. The radio worked fine on low and medium power but would turn off on high power. As for locking up in transmit, I've never experienced that problem, but it could be RF getting back in to the radio.

N5ZUA

--- On Fri, 3/27/09, S. Peterson <kg6jev@...> wrote:
From: S. Peterson <kg6jev@...>
Subject: [TMD700A] D700 Turns Itself Off
To: TMD700A@...
Date: Friday, March 27, 2009, 7:43 PM

Anyone experienced an issue with their rig turning off after transmitting on

high power? I've owned my rig for several years and use it for APRS, which

always transmits on high power. I use low power to talk on the local

repeater. This afternoon, after transmitting an APRS packet, I noticed my

radio was shutting itself down. I brought up the simplex frequency and found

low and medium to be okay, but when I keyed up in high power, it either

locked up in transmit mode, or shut itself down. I haven't had a chance to

check power output and SWR, but it looks like the rig is going into self

protect. Anyone else seen this?

73,

Steven KG6JEV

Re: D700 Turns Itself Off

David Forbes
 

Message text written by INTERNET:TMD700A@...
I've owned my rig for several years and use it for APRS, which
always transmits on high power<

Do you really need high power to reach the network? You must live in the
sticks.

Re: D700 Turns Itself Off

Michael Champion <mikec@...>
 

Or go 9600 using 144.35 in the Puget sound. More people and less
collisions on 1 freq.



From: TMD700A@... [mailto:TMD700A@...] On Behalf
Of Herb Gerhardt
Sent: Friday, March 27, 2009 9:32 PM
To: TMD700A@...
Subject: RE: [TMD700A] Re: D700 Turns Itself Off



Folks, PLEASE don't use high power on a routine basis. On the D700 that
is
50 Watts!

Give a break to the little guy with their TH-D7A or VX-8R hand helds.
They
can only put out 5 watts and if all the mobiles use high power, then
these
little guys will never be heard.

On the D700 it is so easy to see if you are getting into the system.
Just
look for the MY PACKET after your transmission it means your radio has
heard
itself being digipeated by another station so you positively know that
you
are making it into your local APRS network.

Thanks,

Herb, KB7UVC
NW APRS Group, West Sound Coordinator
Our WEB Site: http://www.nwaprs.info

-----Original Message-----
From: TMD700A@... <mailto:TMD700A%40yahoogroups.com>
[mailto:TMD700A@... <mailto:TMD700A%40yahoogroups.com> ]On
Behalf
Of Steven Peterson
Sent: Friday, March 27, 2009 8:53 PM
To: TMD700A@... <mailto:TMD700A%40yahoogroups.com>
Subject: [TMD700A] Re: D700 Turns Itself Off


Thanks for the responses, guys. I'll have a look at it tomorrow
and see if I can find something amiss. Right now I'm trying to
remember where I installed the fuseholder for that rig... If it's
in the engine compartment, that could be the problem.

You're right - I probably don't need high power on APRS for the
local area, but we frequently get out on the fringe and it's nice
not to worry if I'm hitting the digipeater, especially if I
forget to bump it back up to high power.


Thanks and 73,

Steven KG6JEV

Re: D700 Turns Itself Off

Michael Champion <mikec@...>
 

I found that mine will shut off/ power cycle on certain frequencies with
the HF rig. I put chokes on both ends of the head cable and that seemed
to solve it. Now if yours is doing that on its own then the SWR advice
may be valid. You may have a lot of reflected power on your coax as it
does degrade over time with heating and cooling of cars.



-MC



From: TMD700A@... [mailto:TMD700A@...] On Behalf
Of Steve
Sent: Friday, March 27, 2009 7:46 PM
To: TMD700A@...
Subject: [TMD700A] Re: D700 Turns Itself Off





Steve,
Yes check the 12 V power. Gotta' be. I found those wrapped sheet metal
3AG FUSE HOLDERS TO BE RATHER POOR. i DON'T KNOW IF IT IS OXIDATION OR
TENSION, BUT i HAD PROBLEMS WITH HIGH RESISTANCE AND VOLTAGE DROP FROM
THEM. i FOUND SOME ORDINARY SPRINGS THAT i SLIP OVER THE CONNECTIONS
AROUND THE ENDS OF THE FUSES. iT MAKES THE CONTACT MUCH TIGHTER AND i
DON'T HAVE ANY PROBLEMS.
OOPS! - Darn Caps lock that is Caps Invert, NOT Caps Lock! (you can tell
I'm a touch typist)

They are ordinary spiral springs and have a pretty tight fit over the
end contacts.

You can also measure the voltage drop across the fuse contacts to see
what it is.

You can try to simply tighten the fuse holders by bending them into
tighter curves, but that didn't last for me, so I came up with the
springs.... Good junk box.

I'd also wonder if you really need high power on APRS.

--
73, Steve, K9DCI

--- In TMD700A@... <mailto:TMD700A%40yahoogroups.com> , "S.
Peterson" <kg6jev@...> wrote:

Anyone experienced an issue with their rig turning off after
transmitting on
high power? I've owned my rig for several years and use it for APRS,
which
always transmits on high power.
73,

Steven KG6JEV

Re: D700 Turns Itself Off

Eric Foster <TheHaymaker@...>
 

Great in theory, but I have enough going on in the cab of my tractor trailer to begin with. She says on high power.

E

Herb Gerhardt wrote:


Folks, PLEASE don't use high power on a routine basis. On the D700 that is
50 Watts!

Give a break to the little guy with their TH-D7A or VX-8R hand helds. They
can only put out 5 watts and if all the mobiles use high power, then these
little guys will never be heard.

On the D700 it is so easy to see if you are getting into the system. Just
look for the MY PACKET after your transmission it means your radio has heard
itself being digipeated by another station so you positively know that you
are making it into your local APRS network.

Thanks,

Herb, KB7UVC
NW APRS Group, West Sound Coordinator
Our WEB Site: http://www.nwaprs.info <http://www.nwaprs.info>

--
Congress shall make no law respecting an establishment
of religion, or prohibiting the free exercise thereof;
or abridging the freedom of speech, or of the press;
or the right of the people peaceably to assemble, and
to petition the Government for a redress of grievances.

http://www.glennbeck.com/content/articles/article/198/21018/?ck=1

Re: D700 Turns Itself Off

Eric Foster <TheHaymaker@...>
 

I'd say check swr. Mine will turn itself on and off while tuning my screwdriver antenna on hf.

E

S. Peterson wrote:


Anyone experienced an issue with their rig turning off after transmitting on
high power? I've owned my rig for several years and use it for APRS, which
always transmits on high power. I use low power to talk on the local
repeater. This afternoon, after transmitting an APRS packet, I noticed my
radio was shutting itself down. I brought up the simplex frequency and found
low and medium to be okay, but when I keyed up in high power, it either
locked up in transmit mode, or shut itself down. I haven't had a chance to
check power output and SWR, but it looks like the rig is going into self
protect. Anyone else seen this?

73,

Steven KG6JEV

--
Congress shall make no law respecting an establishment
of religion, or prohibiting the free exercise thereof;
or abridging the freedom of speech, or of the press;
or the right of the people peaceably to assemble, and
to petition the Government for a redress of grievances.

http://www.glennbeck.com/content/articles/article/198/21018/?ck=1

Re: D700 Turns Itself Off

Joe Pistritto <jcp@...>
 

Almost certainly a voltage problem going into the radio. Mine used to turn itself off/on when i started the car with the radio turned on, for instance, (till i bought a new battery actually, my old battery was getting fairly weak).

If the voltage drops below about 10 volts, the radio will turn itself off. So check your power wiring and make sure the guage of wire is heavy enough and there arent any bad connections.

That would be my first guess.
-jcp-


S. Peterson wrote:

Anyone experienced an issue with their rig turning off after transmitting on
high power? I've owned my rig for several years and use it for APRS, which
always transmits on high power. I use low power to talk on the local
repeater. This afternoon, after transmitting an APRS packet, I noticed my
radio was shutting itself down. I brought up the simplex frequency and found
low and medium to be okay, but when I keyed up in high power, it either
locked up in transmit mode, or shut itself down. I haven't had a chance to
check power output and SWR, but it looks like the rig is going into self
protect. Anyone else seen this?


73,

Steven KG6JEV



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Re: D700 Turns Itself Off

skagenin
 

could it be a faulty power supply,, sometimes my switch mode psu turn off
fore some reason when i transmit


From: Steven Peterson
Sent: Saturday, March 28, 2009 4:53 AM
To: TMD700A@...
Subject: [TMD700A] Re: D700 Turns Itself Off


Thanks for the responses, guys. I'll have a look at it tomorrow and see if I can find something amiss. Right now I'm trying to remember where I installed the fuseholder for that rig... If it's in the engine compartment, that could be the problem.

You're right - I probably don't need high power on APRS for the local area, but we frequently get out on the fringe and it's nice not to worry if I'm hitting the digipeater, especially if I forget to bump it back up to high power.

Thanks and 73,

Steven KG6JEV

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



Steve,
Yes check the 12 V power. Gotta' be. I found those wrapped sheet metal 3AG FUSE HOLDERS TO BE RATHER POOR. i DON'T KNOW IF IT IS OXIDATION OR TENSION, BUT i HAD PROBLEMS WITH HIGH RESISTANCE AND VOLTAGE DROP FROM THEM. i FOUND SOME ORDINARY SPRINGS THAT i SLIP OVER THE CONNECTIONS AROUND THE ENDS OF THE FUSES. iT MAKES THE CONTACT MUCH TIGHTER AND i DON'T HAVE ANY PROBLEMS.
OOPS! - Darn Caps lock that is Caps Invert, NOT Caps Lock! (you can tell I'm a touch typist)

They are ordinary spiral springs and have a pretty tight fit over the end contacts.

You can also measure the voltage drop across the fuse contacts to see what it is.

You can try to simply tighten the fuse holders by bending them into tighter curves, but that didn't last for me, so I came up with the springs.... Good junk box.

I'd also wonder if you really need high power on APRS.

--
73, Steve, K9DCI

Re: D700 Turns Itself Off

Herb
 

Folks, PLEASE don't use high power on a routine basis. On the D700 that is
50 Watts!

Give a break to the little guy with their TH-D7A or VX-8R hand helds. They
can only put out 5 watts and if all the mobiles use high power, then these
little guys will never be heard.

On the D700 it is so easy to see if you are getting into the system. Just
look for the MY PACKET after your transmission it means your radio has heard
itself being digipeated by another station so you positively know that you
are making it into your local APRS network.

Thanks,

Herb, KB7UVC
NW APRS Group, West Sound Coordinator
Our WEB Site: http://www.nwaprs.info

-----Original Message-----
From: TMD700A@... [mailto:TMD700A@...]On Behalf
Of Steven Peterson
Sent: Friday, March 27, 2009 8:53 PM
To: TMD700A@...
Subject: [TMD700A] Re: D700 Turns Itself Off


Thanks for the responses, guys. I'll have a look at it tomorrow
and see if I can find something amiss. Right now I'm trying to
remember where I installed the fuseholder for that rig... If it's
in the engine compartment, that could be the problem.

You're right - I probably don't need high power on APRS for the
local area, but we frequently get out on the fringe and it's nice
not to worry if I'm hitting the digipeater, especially if I
forget to bump it back up to high power.


Thanks and 73,

Steven KG6JEV

Re: D700 Turns Itself Off

Steven Peterson
 

Thanks for the responses, guys. I'll have a look at it tomorrow and see if I can find something amiss. Right now I'm trying to remember where I installed the fuseholder for that rig... If it's in the engine compartment, that could be the problem.

You're right - I probably don't need high power on APRS for the local area, but we frequently get out on the fringe and it's nice not to worry if I'm hitting the digipeater, especially if I forget to bump it back up to high power.


Thanks and 73,

Steven KG6JEV

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



Steve,
Yes check the 12 V power. Gotta' be. I found those wrapped sheet metal 3AG FUSE HOLDERS TO BE RATHER POOR. i DON'T KNOW IF IT IS OXIDATION OR TENSION, BUT i HAD PROBLEMS WITH HIGH RESISTANCE AND VOLTAGE DROP FROM THEM. i FOUND SOME ORDINARY SPRINGS THAT i SLIP OVER THE CONNECTIONS AROUND THE ENDS OF THE FUSES. iT MAKES THE CONTACT MUCH TIGHTER AND i DON'T HAVE ANY PROBLEMS.
OOPS! - Darn Caps lock that is Caps Invert, NOT Caps Lock! (you can tell I'm a touch typist)

They are ordinary spiral springs and have a pretty tight fit over the end contacts.

You can also measure the voltage drop across the fuse contacts to see what it is.

You can try to simply tighten the fuse holders by bending them into tighter curves, but that didn't last for me, so I came up with the springs.... Good junk box.

I'd also wonder if you really need high power on APRS.

--
73, Steve, K9DCI

Re: Is there a mod to transmit on 477 MHz ?

paul dallard
 

So the CB band in Australia is 477 or Tband here in the USA? The UHF CB band is 462 here..interesting.

de KM3W

--- On Thu, 3/26/09, Milan v.d. Swaluw <milan@...> wrote:

From: Milan v.d. Swaluw <milan@...>
Subject: [TMD700A] Is there a mod to transmit on 477 MHz ?
To: TMD700A@...
Date: Thursday, March 26, 2009, 6:13 PM
Hello,

my friend wants to travel to Australia for a few months.
There he wants to use his TMD700E to transmit on a 477 MHz
CB band. Is this possible with one of the mods ?

Milan, PE1RYY.

Re: D700 Turns Itself Off

noskosteve
 

Steve,
Yes check the 12 V power. Gotta' be. I found those wrapped sheet metal 3AG FUSE HOLDERS TO BE RATHER POOR. i DON'T KNOW IF IT IS OXIDATION OR TENSION, BUT i HAD PROBLEMS WITH HIGH RESISTANCE AND VOLTAGE DROP FROM THEM. i FOUND SOME ORDINARY SPRINGS THAT i SLIP OVER THE CONNECTIONS AROUND THE ENDS OF THE FUSES. iT MAKES THE CONTACT MUCH TIGHTER AND i DON'T HAVE ANY PROBLEMS.
OOPS! - Darn Caps lock that is Caps Invert, NOT Caps Lock! (you can tell I'm a touch typist)

They are ordinary spiral springs and have a pretty tight fit over the end contacts.

You can also measure the voltage drop across the fuse contacts to see what it is.

You can try to simply tighten the fuse holders by bending them into tighter curves, but that didn't last for me, so I came up with the springs.... Good junk box.

I'd also wonder if you really need high power on APRS.

--
73, Steve, K9DCI

--- In TMD700A@..., "S. Peterson" <kg6jev@...> wrote:

Anyone experienced an issue with their rig turning off after transmitting on
high power? I've owned my rig for several years and use it for APRS, which
always transmits on high power.
73,

Steven KG6JEV

Re: D700 Turns Itself Off

dan_kc5pcb
 

Hi Steven!

Before you check power output and SWR, you might want to check your 12vdc power connections.  When you are testing in low & medium power, you are not drawing enough current to effect the voltage level as bad.

I would check that first, before I tore into anything else.

Dan KC5PCB

--- On Fri, 3/27/09, S. Peterson <kg6jev@...> wrote:
From: S. Peterson <kg6jev@...>
Subject: [TMD700A] D700 Turns Itself Off
To: TMD700A@...
Date: Friday, March 27, 2009, 7:43 PM












Anyone experienced an issue with their rig turning off after transmitting on

high power? I've owned my rig for several years and use it for APRS, which

always transmits on high power. I use low power to talk on the local

repeater. This afternoon, after transmitting an APRS packet, I noticed my

radio was shutting itself down. I brought up the simplex frequency and found

low and medium to be okay, but when I keyed up in high power, it either

locked up in transmit mode, or shut itself down. I haven't had a chance to

check power output and SWR, but it looks like the rig is going into self

protect. Anyone else seen this?



73,



Steven KG6JEV




























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

APRS packets

VE3FAL-Fred <flesnick@...>
 

Gang:
I have been running my TMD700 on APRS on 144.390 with no problems.
When on the road I set my beacon to every 3 minutes, if the locals want to do some land/propagation/power/antenna tests I run it at 30s intervals when travelling the area roads.

I have wanted to set up one of the PM channels for the ISS packet on 145.825, I have set all my paths etc. just as I would at home running UISS and AGW.
My set up at home will send my data when a certain string or call is heard, like RS0ISS etc.
My question is how do I set that up in the vehicle to do the same thing using the D700, or does the BCON set up have to be on to respond if listening to ISS.

I have read the manual but find some data very vague in there.

Thanks for any help.

Fred
VE3FAL

Re: D700 Turns Itself Off

w0web <w0web@...>
 

check your antenna and then check output power

----- Original Message -----
From: S. Peterson
To: TMD700A@...
Sent: Friday, March 27, 2009 17:43
Subject: [TMD700A] D700 Turns Itself Off


Anyone experienced an issue with their rig turning off after transmitting on
high power? I've owned my rig for several years and use it for APRS, which
always transmits on high power. I use low power to talk on the local
repeater. This afternoon, after transmitting an APRS packet, I noticed my
radio was shutting itself down. I brought up the simplex frequency and found
low and medium to be okay, but when I keyed up in high power, it either
locked up in transmit mode, or shut itself down. I haven't had a chance to
check power output and SWR, but it looks like the rig is going into self
protect. Anyone else seen this?

73,

Steven KG6JEV

D700 Turns Itself Off

Steven Peterson
 

Anyone experienced an issue with their rig turning off after transmitting on
high power? I've owned my rig for several years and use it for APRS, which
always transmits on high power. I use low power to talk on the local
repeater. This afternoon, after transmitting an APRS packet, I noticed my
radio was shutting itself down. I brought up the simplex frequency and found
low and medium to be okay, but when I keyed up in high power, it either
locked up in transmit mode, or shut itself down. I haven't had a chance to
check power output and SWR, but it looks like the rig is going into self
protect. Anyone else seen this?


73,

Steven KG6JEV

Is there a mod to transmit on 477 MHz ?

Milan v.d. Swaluw <milan@...>
 

Hello,

my friend wants to travel to Australia for a few months. There he wants to use his TMD700E to transmit on a 477 MHz CB band. Is this possible with one of the mods ?

Milan, PE1RYY.

Re: MARS Mod still not working...

Schwartz Sr. William <wa5hsv@...>
 

Hope you fix it soon

Bill

On Mar 21, 2009, at 12:31, "Michael Champion" <mikec@...> wrote:

You just heat up the component in the center and the solder melts.
It's
a zero ohm resistor so if you want to replace it later just use a
piece
of wire.

From: TMD700A@... [mailto:TMD700A@...] On
Behalf
Of Jim Shorney
Sent: Friday, March 20, 2009 6:14 PM
To: TMD700A@...
Subject: Re: [TMD700A] MARS Mod still not working...

On Fri, 20 Mar 2009 08:57:17 -0700, w0web wrote:

At first, I also was very reluctant to
remove W601 due to its micro size and difficulty of removal.
Removing surface moutn componentes is NOT difficult, you just have to
think a little differently. All that is required is a little finesse
and a GOOD soldering iron with a blob of solder on the end. I've been
doing surface mount for years with NO special tools.

73

-Jim

--
Ham Radio NU0C
Lincoln, Nebraska, U.S.S.A.
TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A,
GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time!

"Give a man a URL, and he will learn for an hour; teach him to Google,
and he will learn for a lifetime."

HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/
http://radiojim.exofire.net
http://incolor.inetnebr.com/jshorney
http://www.nebraskaghosts.org



Re: MARS Mod still not working...

Michael Champion <mikec@...>
 

You just heat up the component in the center and the solder melts. It's
a zero ohm resistor so if you want to replace it later just use a piece
of wire.



From: TMD700A@... [mailto:TMD700A@...] On Behalf
Of Jim Shorney
Sent: Friday, March 20, 2009 6:14 PM
To: TMD700A@...
Subject: Re: [TMD700A] MARS Mod still not working...



On Fri, 20 Mar 2009 08:57:17 -0700, w0web wrote:

At first, I also was very reluctant to
remove W601 due to its micro size and difficulty of removal.
Removing surface moutn componentes is NOT difficult, you just have to
think a little differently. All that is required is a little finesse
and a GOOD soldering iron with a blob of solder on the end. I've been
doing surface mount for years with NO special tools.

73

-Jim

--
Ham Radio NU0C
Lincoln, Nebraska, U.S.S.A.
TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A,
GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time!

"Give a man a URL, and he will learn for an hour; teach him to Google,
and he will learn for a lifetime."

HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/
http://radiojim.exofire.net
http://incolor.inetnebr.com/jshorney
http://www.nebraskaghosts.org