From list at ha3ln.hu  Sun Dec  8 07:45:47 2019
From: list at ha3ln.hu (HA3LN)
Date: Sun, 8 Dec 2019 13:45:47 +0100
Subject: [1000mp] RX Ant during TX
In-Reply-To: <b4f9c643-353c-0235-768e-f7481774d84b@ha3ln.hu>
References: <b4f9c643-353c-0235-768e-f7481774d84b@ha3ln.hu>
Message-ID: <b8199bc7-fecb-988e-aa42-9fce37a60026@ha3ln.hu>

Hi,

Can you please confirm that in case when the MP goes for transmitting 
the RX input is disconnected by the RL1001 relay?

I'm trying to trace this back on the schematic but kinda crowded.

I would like to make sure I'm not going to burn the receiver if I use 
any RX antenna.


Thanks in advance.

73!
Csaba  HA3LN / HG3N
http://ha3ln.hu/


From wa4mit at yahoo.com  Sun Dec  8 07:57:08 2019
From: wa4mit at yahoo.com (Morris Wideman)
Date: Sun, 8 Dec 2019 12:57:08 +0000 (UTC)
Subject: [1000mp] RX Ant during TX
In-Reply-To: <b8199bc7-fecb-988e-aa42-9fce37a60026@ha3ln.hu>
References: <b4f9c643-353c-0235-768e-f7481774d84b@ha3ln.hu>
	<b8199bc7-fecb-988e-aa42-9fce37a60026@ha3ln.hu>
Message-ID: <1016869923.5182502.1575809828285@mail.yahoo.com>

 The manual says this is for receive only use on either receiver hope that helps73 Morris WA4MIT
    On Sunday, December 8, 2019, 06:46:28 AM CST, HA3LN <list at ha3ln.hu> wrote:  
 
 Hi,

Can you please confirm that in case when the MP goes for transmitting 
the RX input is disconnected by the RL1001 relay?

I'm trying to trace this back on the schematic but kinda crowded.

I would like to make sure I'm not going to burn the receiver if I use 
any RX antenna.


Thanks in advance.

73!
Csaba? HA3LN / HG3N
http://ha3ln.hu/

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From k8gg at voyager.net  Sun Dec  8 11:37:58 2019
From: k8gg at voyager.net (k8gg at voyager.net)
Date: Sun, 8 Dec 2019 11:37:58 -0500 (EST)
Subject: [1000mp] RX Ant during TX
In-Reply-To: <b8199bc7-fecb-988e-aa42-9fce37a60026@ha3ln.hu>
References: <b4f9c643-353c-0235-768e-f7481774d84b@ha3ln.hu>
	<b8199bc7-fecb-988e-aa42-9fce37a60026@ha3ln.hu>
Message-ID: <12803.174.230.140.244.1575823078.squirrel@webmail.core.com>

Hello Csaba,

I believe you are correct.

However, I have always used a KD9SV front end protector relay accessory to
keep RX signals out of the transceiver when transmitting and listening on
a second antenna.

They are available from DX Engineering in Ohio, USA.  Originally this was
published in a magazine years ago.

It has a small high speed relay that opens or shorts to ground when the tx
ground contact is closed on any transceiver.

Good luck,  73,  George, K8GG






> Hi,
>
> Can you please confirm that in case when the MP goes for transmitting
> the RX input is disconnected by the RL1001 relay?
>
> I'm trying to trace this back on the schematic but kinda crowded.
>
> I would like to make sure I'm not going to burn the receiver if I use
> any RX antenna.
>
>
> Thanks in advance.
>
> 73!
> Csaba  HA3LN / HG3N
> http://ha3ln.hu/
>
> ______________________________________________________________
> 1000mp mailing list
> Home: http://mailman.qth.net/mailman/listinfo/1000mp
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:1000mp at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>



From list at ha3ln.hu  Sun Dec  8 19:42:31 2019
From: list at ha3ln.hu (HA3LN)
Date: Mon, 9 Dec 2019 01:42:31 +0100
Subject: [1000mp] RX Ant during TX 12/08/19
In-Reply-To: <fc6b91d9-0053-ebc6-9265-676b2f1c2fbc@earthlink.net>
References: <b4f9c643-353c-0235-768e-f7481774d84b@ha3ln.hu>
	<b8199bc7-fecb-988e-aa42-9fce37a60026@ha3ln.hu>
	<fc6b91d9-0053-ebc6-9265-676b2f1c2fbc@earthlink.net>
Message-ID: <33da67e0-86de-7e25-b050-49119a0aeaf3@ha3ln.hu>

Morris, George, Bill,

Thanks a lot for your response.
Good but I think the protector is a good idea. Will look it up.

73!
Csaba



On 2019-12-08 18:29, Enigma Traveler wrote:
> As I recall, when transmitting, all unused receive connectors / paths 
> are grounded.
> 73 from Bill WD8ARZ
> 
> -------- Forwarded Message --------
> Subject: ??? Re: [FT-1000MP] Auto transmit receive antenna function
> Date: ??? Tue, 17 May 2016 11:33:04 -0400
> From: ??? WD8ARZ wd8arz at ix.netcom.com [FT-1000MP] 
> <FT-1000MP at yahoogroups.com>
> Reply-To: ??? FT-1000MP at yahoogroups.com
> To: ??? FT-1000MP at yahoogroups.com
> 
> User operating manual on page 10 states:
> "RX - normally, the antenna connected to
> the ANT A or B jack is used for receive
> (and always used for transmit). When this
> switch is pressed (display indicator on),
> an antenna connected to the RX ANT is used
> during receive.
> 
> User manual can be downloaded from:
> http://www.va3cr.net/manuals/Material/Manual1000MP.htm
> 73 from Bill - WD8ARZ
> 
> On 12/8/2019 6:45 AM, HA3LN wrote:
>> Hi,
>> Can you please confirm that in case when the MP goes for transmitting 
>> the RX input is disconnected by the RL1001 relay?
>>
>> I'm trying to trace this back on the schematic but kinda crowded.
>> I would like to make sure I'm not going to burn the receiver if I use 
>> any RX antenna.
>>
>> Thanks in advance. 73! - Csaba? HA3LN / HG3N - http://ha3ln.hu/