[600MRG] Receiver protection

[Brian Pease]

An option if high level preamp output is a concern is to cut power to 
the preamp during TX.  This can be done with the Pixel receiving loop 
preamp, for example.

On 7/10/2018 9:42 AM, Gedas wrote:
>
> Many, many years ago when I was a novice my transmitter consisted of a 
> HW-16 (with soft final) and my gem receiver SB-313 as the receiver as 
> a split set. I was an avid SWL and the SB-313 back in it's day was 2nd 
> to none for SWL'ing.
>
> Anyway, on the back of the SB-313 panel was a RCA phono jack called 
> "mute" that ran to my HW-16. It fully protected the receiver while I 
> transmitted on the same frequency. Perhaps take a look at the simple 
> circuitry of the SB-313 and see if you can adopt that to your setup. I 
> suspect the SB-303 (ham only bands) had the same provision as it was 
> designed to be used with separate transmitters like the 401 etc. 73
>
> Gedas, W8BYA
>
> Gallery athttp://w8bya.com
> Light travels faster than sound....
> This is why some people appear bright until you hear them speak.
> On 7/10/2018 9:31 AM, Joe wrote:
>> Morning Paul,
>>
>> Couldn't you use the same technology you used to protect the Pre-amp 
>> in your EME Array?
>> Or I wonder about on of those DX Engeneering RX protectors.
>> https://www.dxengineering.com/parts/dxe-rg5000hd?seid=dxese1&cm_mmc=pla-google-_-shopping-_-dxese1-_-dx-engineering&gclid=CjwKCAjwspHaBRBFEiwA0eM3ke8G-MGepvgjMyiKmAwEHS5T0s2QeUahNHusc9ezHsrWoiT6AmTGTRoCr-AQAvD_BwE
>>
>> Joe WB9SBD
>> Sig
>> The Original Rolling Ball Clock
>> Idle Tyme
>> Idle-Tyme.com
>> http://www.idle-tyme.com
>> On 7/10/2018 7:04 AM, N1BUG wrote:
>>> Does anyone have ideas for receiver front end protection at LF and
>>> MF? I am worried about my TX signal damaging receivers.
>>>
>>> Of course the best idea is to disconnect the RX antenna from the
>>> receiver while transmitting. Any good solution while leaving it
>>> connected?
>>>
>>> Now I have a pair of back to back 1N4148 diodes across the receiver
>>> front end but I don't think this offers real protection because they
>>> allow too high voltage before conducting. Also there is a preamp
>>> after the didoes which can bring the RF to dangerous levels!
>>> (Somehow nothing was damaged during last winter operating this way... :)
>>>
>>> 73,
>>> Paul N1BUG
>>>
>>> ______________________________________________________________
>>> 600MRG mailing list
>>> Home:http://mailman.qth.net/mailman/listinfo/600mrg
>>> Help:http://mailman.qth.net/mmfaq.htm
>>> Post:mailto:600MRG at mailman.qth.net
>>>
>>> This list hosted by:http://www.qsl.net
>>> Please help support this email list:http://www.qsl.net/donate.html
>>>
>>>
>>
>>
>>
>> ______________________________________________________________
>> 600MRG mailing list
>> Home:http://mailman.qth.net/mailman/listinfo/600mrg
>> Help:http://mailman.qth.net/mmfaq.htm
>> Post:mailto:600MRG at mailman.qth.net
>>
>> This list hosted by:http://www.qsl.net
>> Please help support this email list:http://www.qsl.net/donate.html
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/600mrg/attachments/20180710/942f3919/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: CLEAN-IDLE-TYME-LOGO-120x96.jpg
Type: image/jpeg
Size: 9572 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/600mrg/attachments/20180710/942f3919/attachment.jpg>