Re: FT-847 Interfacing cables

This warning Jeff?

Re: FT-847 Interfacing cables

I was more concerned with the diodes they show in the Yaesu manual in the ALC cable, The cable in manual was designed to connect to 4 amps. My 847 may never see an amp inline if it does it will most likely be vhf and uhf.

Re: FT-847 Interfacing cables

#867

I think you will find it is the PTT you are not supposed to use with an amplifier. This is a low level, low current switch and meant for foot pedals as an input. The Standby socket however can switch relays up to 24vdc at 100ma but a typically the switching relay voltage is 12vdc 25ma ~ 75ma. The circuit is open collector transistor.

Regarding the PTT:

Note: This jack is designed to be used for external
PTT input only. Do not attempt to use the PTT jack for switching amplifiers or other external devices (use the STBY jack for  controlling such devices .

   Without the ALC (which will accommodate up to -4vdc) you will guarantee to put any connected amplifier at risk of runaway.

   Personally I run my FT847 into my VL1000 at full output (100w) and then adjust the ALC to 1000w.  No matter how much input I put into my VL1000 it won’t be overdriven. The limit in the UK is currently 400w so can be safely driven at much lower drives to achieve that and just in case of band switching and then running 100w into a relatively low ALC and overdriving my amplifier and damaging it. With this simple precaution it’s impossible to run more than 1000w.

De Spence M0STO

Sent while portable! please excuse typos.

Re: FT-847 Interfacing cables

#866

开云体育

If you read your manual, you will see there is a warning not to use the ALC for an amplifier.?

Sent from Jeff M0UHF?

Show quoted text

On 18 Dec 2023, at 01:32, Andy Bosworth <sidthepop@...> wrote:

?
There is an ALC connector on rear panel.
This is an RCA/phono connector. Most linears use the same, I suggest a phono to phono lead, which are commonly used for connecting hi-fi units together.
Andy
G4XNG

On Sun, 17 Dec 2023 at 19:23, Tim Davis KJ4DHF via <kj4dhf=[email protected]> wrote:

Hello All,

Looking for a little help on the FT-847 EXT ALC Cable. I could find no reference to a part number in my manual. I did locate on pg 14 both the STBY Cable and the ALC Cable. Was the ALC? Cable ever available from Yaesu?

Please sign your posts ( GW3FSP - Moderator )

Re: FT-847 Interfacing cables

#865

There is an ALC connector on rear panel.
This is an RCA/phono connector. Most linears use the same, I suggest a phono to phono lead, which are commonly used for connecting hi-fi units together.
Andy
G4XNG

Show quoted text

On Sun, 17 Dec 2023 at 19:23, Tim Davis KJ4DHF via <kj4dhf=[email protected]> wrote:

Hello All,

Looking for a little help on the FT-847 EXT ALC Cable. I could find no reference to a part number in my manual. I did locate on pg 14 both the STBY Cable and the ALC Cable. Was the ALC? Cable ever available from Yaesu?

Please sign your posts ( GW3FSP - Moderator )

Re?: [YaesuFT847] FT-847 Interfacing cables

#864

better way DIY...

gl hb9csm

Show quoted text

Le dimanche, décembre 17, 2023, 20:11, Tim Davis KJ4DHF via groups.io <kj4dhf@...> a écrit?:

Hello All,

Looking for a little help on the FT-847 EXT ALC Cable. I could find no reference to a part number in my manual. I did locate on pg 14 both the STBY Cable and the ALC Cable. Was the ALC? Cable ever available from Yaesu?

Please sign your posts ( GW3FSP - Moderator )

--
Yvan

FT-847 Interfacing cables

#863

Hello All,

Looking for a little help on the FT-847 EXT ALC Cable. I could find no reference to a part number in my manual. I did locate on pg 14 both the STBY Cable and the ALC Cable. Was the ALC? Cable ever available from Yaesu?

Please sign your posts ( GW3FSP - Moderator )

FT847 avaiilable

#862

I have an FT847 which is now surplus to my needs since I have bought my ic7300.? I would like to make it available for free to a good home or perhaps also for parts.? It has sat on my shelf for several years since I used it.? Let me know of any interest.

I live in Ontario Canada.? Reply to my email joe at laferla dot ca.? Thanks for any interest.

Re: For sale

#861

Good price will circulate to TARS club

?Get BlueMail for Android ?

Show quoted text

On 16 Dec 2023, 12:12, at 12:12, "gw3fsp via groups.io" <gw3fsp.ldavies@...> wrote:
Hi folks, I have for sale a Yeasu FL2100Z linear with 2 spare valves,
new HT capacitors and other work done by previous owner ( now sadly SK
) not used for 2 years was used on 20M SSB and PSK / DRM 20 - 80 M.
very heavy so pick up only South Wales about 2 miles J 35 M4, looking
for ?450 ono cash on collection.
Leighton.     GW3FSP.

For sale

#860

Hi folks, I have for sale a Yeasu FL2100Z linear with 2 spare valves, new HT capacitors and other work done by previous owner ( now sadly SK ) not used for 2 years was used on 20M SSB and PSK / DRM 20 - 80 M. very heavy so pick up only South Wales about 2 miles J 35 M4, looking for ?450 ono cash on collection.
Leighton.     GW3FSP.

Unidirectional CAT

#859

I have a FT847 but my serial number 8Exxx. This corresponds to the number before the famous 8GE series. I understand that I have a one-way CAT connection. So is there a modification for this or how can I switch to a bidirectional CAT connection?

Firmware FT847

#858

Hi,
     I had been wondering if anyone has flashed the firmware on a Yaesu FT847? The original firmware allows for Doppler shifting as we all know and obviously inhibits full duplex on same band which is understandable. What CAT commands can also do is switch on SPLIT. However, SPLIT does not allow you to write to the SUB-VFO in SPLIT mode. 

  Does anyone has experience of flashing the original firmware for the FT847? I wonder is a modified Firmware could send CAT commands (if the CPU allows it) to the SUB-VFO in SPLIT mode?

  If anyone has any thoughts on this I would be grateful to hear. I honestly can’t see hardware constraints and the commands may be implemented but hidden as they may not be needed.

   I can’t see any reason to swap SUB-VFO for the main VFO set the frequency and swap it back again if it’s constrained. Every button must go via the processor and thus must be selectable from the CPU command set as a register. Simply having the code available to set a button in the firmware should unlock access to a command set for every button (totally overkill but workable). 

  Again thoughts appreciated,

Kind regards,

De Spence M0STO 

Sent while portable! please excuse typos.

Re: Din plugs for FT840 and FT847

#857

mouser.com and digikey.com have a selection of mini DIN connectors, AllElectronics and Hosfelt were good choices but they are both no longer in business.

Doug
N7BFS

Re: CAT Isolated?

#856

开云体育

Cheers

?

Show quoted text

From: [email protected] [mailto:[email protected]] On Behalf Of Paul Williams
Sent: 31 October 2023 12:35
To: [email protected]
Subject: Re: [YaesuFT847] CAT Isolated?

?

TR PayPal a branch of PayPal.

?

?perhaps Turkey !

On 31 Oct 2023, at 11:09, Andrew Lenton <a@...> wrote:

?
TR?
?
From: [email protected] [mailto:[email protected]] On Behalf Of yvan skopek via groups.io
Sent: 31 October 2023 10:56
To: [email protected]
Subject: Re: [YaesuFT847] CAT Isolated?
?
Yes, too bad for Paypal, I stop use it also...
Otherweis, it is Vesselin Kotarov LZ5VK (vesselin@...) who is conceptor of this interface.
?
Vy 73 de Yvan HB9CSM
?
Le lundi, 30 octobre 2023 à 18:15:14 UTC+1, TA2YGT <asena.34.ask@...> a écrit :
?
?
Thx Yvan for answer the question but in my country we can not order because We can not use Paypal. It is banned on TR.

--
Yvan

Re: CAT Isolated?

#855

TR = Turkey

Le mardi, 31 octobre 2023 à 13:35:00 UTC+1, Paul Williams <gw4zyg@...> a écrit :

TR PayPal a branch of PayPal.

?perhaps Turkey !

On 31 Oct 2023, at 11:09, Andrew Lenton <a@...> wrote:

?

TR?

?

From: [email protected] [mailto:[email protected]] On Behalf Of yvan skopek via groups.io
Sent: 31 October 2023 10:56
To: [email protected]
Subject: Re: [YaesuFT847] CAT Isolated?

?

Yes, too bad for Paypal, I stop use it also...

Otherweis, it is Vesselin Kotarov LZ5VK (vesselin@...) who is conceptor of this interface.

?

Vy 73 de Yvan HB9CSM

?

Le lundi, 30 octobre 2023 à 18:15:14 UTC+1, TA2YGT <asena.34.ask@...> a écrit :

?

Thx Yvan for answer the question but in my country we can not order because We can not use Paypal. It is banned on TR.

--
Yvan

Re: CAT Isolated?

#854

开云体育

TR PayPal a branch of PayPal.

?perhaps Turkey !

Show quoted text

On 31 Oct 2023, at 11:09, Andrew Lenton <a@...> wrote:

?

TR?

?

From: [email protected] [mailto:[email protected]] On Behalf Of yvan skopek via groups.io
Sent: 31 October 2023 10:56
To: [email protected]
Subject: Re: [YaesuFT847] CAT Isolated?

?

Yes, too bad for Paypal, I stop use it also...

Otherweis, it is Vesselin Kotarov LZ5VK (vesselin@...) who is conceptor of this interface.

?

Vy 73 de Yvan HB9CSM

?

Le lundi, 30 octobre 2023 à 18:15:14 UTC+1, TA2YGT <asena.34.ask@...> a écrit :

?

?

Thx Yvan for answer the question but in my country we can not order because We can not use Paypal. It is banned on TR.

--
Yvan

Re: CAT Isolated?

#853

开云体育

TR?

?

Show quoted text

From: [email protected] [mailto:[email protected]] On Behalf Of yvan skopek via groups.io
Sent: 31 October 2023 10:56
To: [email protected]
Subject: Re: [YaesuFT847] CAT Isolated?

?

Yes, too bad for Paypal, I stop use it also...

Otherweis, it is Vesselin Kotarov LZ5VK (vesselin@...) who is conceptor of this interface.

?

Vy 73 de Yvan HB9CSM

?

Le lundi, 30 octobre 2023 à 18:15:14 UTC+1, TA2YGT <asena.34.ask@...> a écrit :

?

Thx Yvan for answer the question but in my country we can not order because We can not use Paypal. It is banned on TR.

--
Yvan

Re: CAT Isolated?

#852

Yes, too bad for Paypal, I stop use it also...

Otherweis, it is Vesselin Kotarov LZ5VK (vesselin@...) who is conceptor of this interface.

Vy 73 de Yvan HB9CSM

Le lundi, 30 octobre 2023 à 18:15:14 UTC+1, TA2YGT <asena.34.ask@...> a écrit :

Thx Yvan for answer the question but in my country we can not order because We can not use Paypal. It is banned on TR.

--
Yvan

Re: CAT Isolated?

#851

I found that RT Systems programing software provided a USB to serial interface for the FT-847.

Also enabled PCSat32 (and Ham Radio Deluxe)? to work fine.?

73 Dennis VE3XC

Re: CAT Isolated?

#850

开云体育

Need Guide to Use FT-847 For Digital Modes

groups.io

Sent from Jeff M0UHF?

Show quoted text

On 30 Oct 2023, at 18:13, Jeff M0UHF <jeff.elliott45@...> wrote:

? Hi, I’m not sure of the question you’re asking exactly, but I think what you are asking requires one of these forget the price just look at the item and find one of these.?