Date   

Re: [IC-7000] IC-7000 In a Car,

Jim VE4CY <jwt@...>
 

On Wednesday 14 April 2010 11:17:28 am you wrote:

Jim VE4CY,
I have checked all that you have mentioned.SWR is 1.3 on the Yaesu YS-500 meter and the radio says the same,It has full output but no receive.Does the ic-7000 have any protection on the antenna side and how can I check it????????

There is no receive protection that I know of. If the radio isn't
receiving properly and everything else is OK, then I would suspect
a failed component in the IC-7000 VHF receiver circuits.

73 de Jim VE4CY


Re: [IC-7000] IC-7000 In a Car,

BASILIE <n8nqu@...>
 

Jim VE4CY,
I have checked all that you have mentioned.SWR is 1.3 on the Yaesu YS-500 meter and the radio says the same,It has full output but no receive.Does the ic-7000 have any protection on the antenna side and how can I check it????????

--- In ic7000@yahoogroups.com, Jim VE4CY <jwt@...> wrote:

On Wednesday 14 April 2010 10:32:27 am BASILIE wrote:

With the ht TX 5 watts in the car I only have a S-5 Signal,Pre Amp ON ATT OFF.
Have you checked the antenna?

Make sure you've got the plug installed on the correct SO239
at the back of the radio. (On the VHF and not on the HF).

Make sure the antenna mount, coax, and the connections to the
PL259 plug are still good.

If you have a VHF SWR bridge, check the SWR If you don't have a
bridge, use the power output meter on your IC-7000 on transmit.
If the power is folding back a lot, then you probably have an
antenna problem.

If your antenna and coax are all OK, then it sounds like you might
have to send the rig in to ICOM for repair.....

73 de Jim VE4CY


Re: [IC-7000] IC-7000 In a Car,

Jim VE4CY <jwt@...>
 

On Wednesday 14 April 2010 10:32:27 am BASILIE wrote:

With the ht TX 5 watts in the car I only have a S-5 Signal,Pre Amp ON ATT OFF.
Have you checked the antenna?

Make sure you've got the plug installed on the correct SO239
at the back of the radio. (On the VHF and not on the HF).

Make sure the antenna mount, coax, and the connections to the
PL259 plug are still good.

If you have a VHF SWR bridge, check the SWR If you don't have a
bridge, use the power output meter on your IC-7000 on transmit.
If the power is folding back a lot, then you probably have an
antenna problem.

If your antenna and coax are all OK, then it sounds like you might
have to send the rig in to ICOM for repair.....

73 de Jim VE4CY


Re: uk emc power cable

g1mhu <zen22486@...>
 

--- In ic7000@yahoogroups.com, Graham Saville <graham.saville@...> wrote:

Email sent on Tuesday 13/04/2010 at 16:27:19
Hi not sure if this has been discussed in the past but why does the ic7k
that are sold in the uk have emc filters and the ones in the us don't?
also does the filter stop rf getting into the radio?
73's Graham G1rnz
In Europe the rig has to conform to CE regulations,the filter is fitted to get the rig through the emissions tests. The none CE version may be sold elsewhere.
Robin G1MHU


Re: [IC-7000] IC-7000 In a Car,

BASILIE <n8nqu@...>
 

With the ht TX 5 watts in the car I only have a S-5 Signal,Pre Amp ON ATT OFF.

--- In ic7000@yahoogroups.com, "JV" <jv@...> wrote:

Is the attenuator on?




-------Original Message-------

From: BASILIE
Date: 4/14/2010 10:05:39 AM
To: ic7000@yahoogroups.com
Subject: [IC-7000] IC-7000 In a Car,


I lost my 2 meter receive,With a ht at 5 watts output I am only getting a
S-5 with the pre amp on.The local repeater I was getting it at S-50 with no
pre amp and now I can't even heAr it with thE pre amp.Has one of you members
had this happen and how can I fix it ???????
Thanks Bill N8NQU

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


Re: [IC-7000] AH4 connector

Alan Beagley <ajbeagley@...>
 

Yes, it's a 4-pin Molex connector, and I did buy one of the male connectors at RadioShack -- but at least on the 706MkIIG it's a different shape from those used in PCs. RS# 274-224.

73

Alan NV8A

On 04/13/10 02:40 pm, Jim Wright wrote:

It's a 4-pin Molex connector. The same connectors are used in PCs for power
to peripherals, so you may already have some in a junk computer that you can
reuse. The connector has sort of a gender identity problem... the male
pins go in the female plastic housing, and vice versa.
I need to whip up a patch cable for an AH4. The back of the 7K has a
connector on the back referred to as "tuner control socket". (Manual, page
11, #6) I should probably know this but what do you call that socket. If you
were going to order a few of those - both male and female - what do you ask
for?


Re: [IC-7000] IC-7000 In a Car,

JV <jv@...>
 

Is the attenuator on?

-------Original Message-------

From: BASILIE
Date: 4/14/2010 10:05:39 AM
To: ic7000@yahoogroups.com
Subject: [IC-7000] IC-7000 In a Car,


I lost my 2 meter receive,With a ht at 5 watts output I am only getting a
S-5 with the pre amp on.The local repeater I was getting it at S-50 with no
pre amp and now I can't even heAr it with thE pre amp.Has one of you members
had this happen and how can I fix it ???????
Thanks Bill N8NQU


IC-7000 In a Car,

BASILIE <n8nqu@...>
 

I lost my 2 meter receive,With a ht at 5 watts output I am only getting a S-5 with the pre amp on.The local repeater I was getting it at S-50 with no pre amp and now I can't even heAr it with thE pre amp.Has one of you members had this happen and how can I fix it ???????
Thanks Bill N8NQU


Re: [IC-7000] AH4 connector

Troy Griffin
 

These Molex plugs are also commonly available at Radio Shack.

73,
Troy
KH6PA



________________________________
From: James - KB7TBT <kb7tbt@gmail.com>
To: ic7000@yahoogroups.com
Sent: Tue, April 13, 2010 8:49:09 AM
Subject: Re: [IC-7000] AH4 connector

 

The connector on the back of the radio is the same that are used in
computers, cut a plug off an old machine and you then can wire cat 5 or
phone wire to the AH4.
You don't have to rewire each connector on the plug, just add new wire and
tape it.
I used duct tape for mine... hi hi

James
KB7TBT
www.kb7tbt.com


I need to whip up a patch cable for an AH4. The back of the 7K has a
connector on the back referred to as "tuner control socket". (Manual, page
11, #6) I should probably know this but what do you call that socket. If
you
were going to order a few of those - both male and female - what do you
ask
for?

Thanks,

Ron W9XS







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


Re: [IC-7000] AH4 connector

James KB7TBT
 

The connector on the back of the radio is the same that are used in computers, cut a plug off an old machine and you then can wire cat 5 or phone wire to the AH4.
You don't have to rewire each connector on the plug, just add new wire and tape it.
I used duct tape for mine... hi hi



James
KB7TBT
www.kb7tbt.com


I need to whip up a patch cable for an AH4. The back of the 7K has a
connector on the back referred to as "tuner control socket". (Manual, page
11, #6) I should probably know this but what do you call that socket. If you
were going to order a few of those - both male and female - what do you ask
for?

Thanks,

Ron W9XS


Re: [IC-7000] AH4 connector

Jim Wright
 

Ron -

It's a 4-pin Molex connector. The same connectors are used in PCs for power
to peripherals, so you may already have some in a junk computer that you can
reuse. The connector has sort of a gender identity problem... the male
pins go in the female plastic housing, and vice versa.

-jim KS4O

On Tue, Apr 13, 2010 at 11:10 AM, Ron Baran <ronbaran@hotmail.com> wrote:




Hi All,

I need to whip up a patch cable for an AH4. The back of the 7K has a
connector on the back referred to as "tuner control socket". (Manual, page
11, #6) I should probably know this but what do you call that socket. If you
were going to order a few of those - both male and female - what do you ask
for?

Thanks,

Ron W9XS



PTT with Berhinger x802

mark <n8ibz@...>
 

I have tried to get the ic7000 to transmit using pin 4 and 7 though the rear mic connector with the pr781 connected to the 13pin acc port(2/11) but it will not go into transmit.

My question is with the Berhinger going to pins 2/11 can I use Pin 3 and pin 2 for the PTT on the 13 pin port?

Bob Heil suggested I use the rear mic connector but I can't get it to transmit(go to tx)using(4/7, with pin 4ptt and 7gnd), anyone use the this method and which pin# did you use????


73 Mark


uk emc power cable

Graham Saville <graham.saville@...>
 

Email sent on Tuesday 13/04/2010 at 16:27:19
Hi not sure if this has been discussed in the past but why does the ic7k that are sold in the uk have emc filters and the ones in the us don't? also does the filter stop rf getting into the radio?
73's Graham G1rnz


AH4 connector

Ronald Baran
 

Hi All,

I need to whip up a patch cable for an AH4. The back of the 7K has a connector on the back referred to as "tuner control socket". (Manual, page 11, #6) I should probably know this but what do you call that socket. If you were going to order a few of those - both male and female - what do you ask for?

Thanks,

Ron W9XS


Re: RTTY or CW to check SWR on 7000 I am having problems

Jack Rucker <jackr1@...>
 

Steve,

HV Mica caps can be found in WW2 surplus BC-375E. Be sure to get one with a complete set of tuning units.

They were easily found in 1948 for ~$15. Y$MV

Jack_son
=================================================

----- Original Message -----
From: Steve
To: ic7000@yahoogroups.com
Sent: Tuesday, April 13, 2010 12:45 AM
Subject: [IC-7000] Re: RTTY or CW to check SWR on 7000 I am having problems

Mac,
Do you remember the size and number of turns for the High Sierra HS-1500 coil?
Not easy to "find" higher voltag equality MICA caps.......

Regards.
Steve
AB2ET/4

- - - - S N I P - - - -


Re: RTTY or CW to check SWR on 7000 I am having problems

Steve Sawicki
 

Mac,
Do you remember the size and number of turns for the High Sierra HS-1500 coil?
Not easy to "find" higher voltag equality MICA caps.......

Regards.
Steve
AB2ET/4

--- In ic7000@yahoogroups.com, D C *Mac* Macdonald <k2gkk@...> wrote:


The matching device needed is simply a coil with the
proper inductance SHORTED from the feedpoint to the
chassis ground. This coil along with a small portion
of the loading coil of the antenna forms an "L" network
to match the very low impedance on 40 and even lower
on 75/80 meters to the 50 Ohm impedance of your coax.
It is virtually lossless.

A fixed capacitor at the same location will also serve
to get you a correct match. Try 1,000 or 470 pFd for
75/80 and 470 or 270 for 40. It's been so long that I
have forgotten the actual starting values. Use good
quality MICA caps, the higher voltage rating the better
(within reasonable phyisical size limits).

With the High Sierra HS-1500 (replaced by HS-1800)
one coil is used for all bands from 80M through 10M.

The old Master Mobile (60s and 70s) setup, there was
a manually variable inductor in the same location that
could be reset for each band. I still have that setup
(that I bought in 1962) out in the garage with lots of
other old stuff.

If you don't need help to match your antenna to 50
Ohm coax, you have an antenna that is excessively and
unnecessarily lossy!

73 - Mac, K2GKK/5
(Since 30 Nov 53)
Oklahoma City, OK


Re: IC-7000 50 watts on some bans?????

Steve W3AHL
 

What mode were you using for the testing? On 160m & 80m, what does the ALC indicator and the internal SWR meter show at 100% power? If the ALC has ALL of the right most red bars ON, then something is causing the APC to reduce the power. If the internal SWR is below 1.5, that isn't the problem. Based upon your voltage measurements the PA isn't drawing too much current, so that isn't the problem.

About the only thing that makes sense is there is a logic problem selecting the correct HP & LP filters for the lower bands.

Give Icom Service a call and see if they have any ideas. It probably needs to be returned.

Steve, W3AHL

--- In ic7000@yahoogroups.com, "BASILIE" <n8nqu@...> wrote:



Have you measured the TX power into a known good dummy load, bypassing the
tuner? It is unlikely this is a problem with the radio.
Yes,i went into a heath cantenna with no tuner inline and I did check the voltage on pin 3 and 4,I am using a VS-70amp Astron.Here is what I found.

160 meters
100% rf power 20 watts Idle 14.00 volts under load 13.61 volts
50% " " 2 watts " " 13.65 "

80 meters
100% 48 watts " " 13.37 "
50% 5 watts 13.62 "

40 meters
100% 50 watts 13.10 "
50% 8 watts 13.45


20 meters
100% 105 watts 13.29
50% 50 watts 13.05
10 meters 100 watts
100% 100 watts 13.00
50% 50 watts 13.32

I hope this makes sense.











--- In ic7000@yahoogroups.com, "Steve W3AHL" <w3ahl@> wrote:

Have you measured the TX power into a known good dummy load, bypassing the tuner? It is unlikely this is a problem with the radio.

Also, verify the DC voltage at the radio while transmitting at full power. The best place to measure it is on pins 3 & 4 of the antenna tuner connector. It should be 12.8-13.2 volts to get full power output.

More details on your test method would help.

Steve, W3AHL

--- In ic7000@yahoogroups.com, "BASILIE" <n8nqu@> wrote:

Does anybody know why 10-20 meters I have 100 watts and 40-160 meters only have 50 watts??????I am using the radio with the LDG IT-100.It's got me thinking that I have something major wrong with the radio.Serial Number is 05107xx.Thanks Bill N8NQU.73.........


Re: IC-7000 50 watts on some bans?????

scott_scheirman <ad7xv@...>
 

And I don't know what a *heath antenna* is, It sure sounds like it's an antenna and not
a dummy load
A Heath(kit) cantenna is a 50 ohm resistor in a gallon can (like a paint can) of oil. An SO239 connector is on the lid.

So yes, it is a dummy antenna.

Caveat: I've heard that some of the original oil from 20+ years ago may have contained PCBs, so one may want to think twice before purchasing a used one unless oil has never been installed.

Scott
AD7XV


Re: [IC-7000] Re: IC-7000 50 watts on some bans?????

Luis Saavedra
 

If there is power being reflected in the 160/80/40m cases your dummy load is not
presenting a 50-ohms resistive load to the RF output of your transceiver at the given frequencies.
An antenna analyzer would be able to tell you this. This reminds me of a few months ago
when I was testing my transceiver with what I *thought* was a good dummy load.
It turns out I had exceeded the power rating of the dummy load and damaged it (should
have smelled it but I had a head cold so couldn't detect it ;-)).
In that case however all bands were affected. You may have a different situation here.
And I don't know what a *heath antenna* is, It sure sounds like it's an antenna and not
a dummy load which would explain what you are seeing. Dummy loads offer a purely (or almost
purely) resistive (real ) component of impedance to your radio depending on the frequency. The idea
is they allow you to dissipate 100% of the RF energy into it -safely- so you can measure it, tune your AMP/Radio
safely etc. etc. Dummy loads come in various types mainly depending on the amount of power they can
dissipate. I doubt your radio is the problem though.
--Luis, NY6U




________________________________
From: BASILIE <n8nqu@avci.net>
To: ic7000@yahoogroups.com
Sent: Mon, April 12, 2010 9:00:12 AM
Subject: [IC-7000] Re: IC-7000 50 watts on some bans?????

 


Have you measured the TX power into a known good dummy load, bypassing the
tuner? It is unlikely this is a problem with the radio.
Yes,i went into a heath cantenna with no tuner inline and I did check the voltage on pin 3 and 4,I am using a VS-70amp Astron.Here is what I found.

160 meters
100% rf power 20 watts Idle 14.00 volts under load 13.61 volts
50% " " 2 watts " " 13.65 "

80 meters
100% 48 watts " " 13.37 "
50% 5 watts 13.62 "

40 meters
100% 50 watts 13.10 "
50% 8 watts 13.45

20 meters
100% 105 watts 13.29
50% 50 watts 13.05
10 meters 100 watts
100% 100 watts 13.00
50% 50 watts 13.32

I hope this makes sense.

--- In ic7000@yahoogroups. com, "Steve W3AHL" <w3ahl@...> wrote:

Have you measured the TX power into a known good dummy load, bypassing the tuner? It is unlikely this is a problem with the radio.

Also, verify the DC voltage at the radio while transmitting at full power. The best place to measure it is on pins 3 & 4 of the antenna tuner connector. It should be 12.8-13.2 volts to get full power output.

More details on your test method would help.

Steve, W3AHL

--- In ic7000@yahoogroups. com, "BASILIE" <n8nqu@> wrote:

Does anybody know why 10-20 meters I have 100 watts and 40-160 meters only have 50 watts??????I am using the radio with the LDG IT-100.It's got me thinking that I have something major wrong with the radio.Serial Number is 05107xx.Thanks Bill N8NQU.73.... .....






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


Re: IC-7000 50 watts on some bans?????

BASILIE <n8nqu@...>
 

Have you measured the TX power into a known good dummy load, bypassing the
tuner? It is unlikely this is a problem with the radio.
Yes,i went into a heath cantenna with no tuner inline and I did check the voltage on pin 3 and 4,I am using a VS-70amp Astron.Here is what I found.

160 meters
100% rf power 20 watts Idle 14.00 volts under load 13.61 volts
50% " " 2 watts " " 13.65 "

80 meters
100% 48 watts " " 13.37 "
50% 5 watts 13.62 "

40 meters
100% 50 watts 13.10 "
50% 8 watts 13.45


20 meters
100% 105 watts 13.29
50% 50 watts 13.05
10 meters 100 watts
100% 100 watts 13.00
50% 50 watts 13.32

I hope this makes sense.

--- In ic7000@yahoogroups.com, "Steve W3AHL" <w3ahl@...> wrote:

Have you measured the TX power into a known good dummy load, bypassing the tuner? It is unlikely this is a problem with the radio.

Also, verify the DC voltage at the radio while transmitting at full power. The best place to measure it is on pins 3 & 4 of the antenna tuner connector. It should be 12.8-13.2 volts to get full power output.

More details on your test method would help.

Steve, W3AHL

--- In ic7000@yahoogroups.com, "BASILIE" <n8nqu@> wrote:

Does anybody know why 10-20 meters I have 100 watts and 40-160 meters only have 50 watts??????I am using the radio with the LDG IT-100.It's got me thinking that I have something major wrong with the radio.Serial Number is 05107xx.Thanks Bill N8NQU.73.........

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