P3/TX Mon Coupler Switching Idea
Locked
 
|
I am thinking of getting a 2nd DCHF Coupler for my P3 TX Monitor Setup. This way I could Monitor 2 Outputs from the same P3. Currently I have a coupler right after my main linear via Ant 1 on the K3, but want to add a second coupler to the output of the KPA500 via Ant 2 on the K3. I then could switch between the outputs and use the same P3. I realize I can only use 1 coupler at a time, but changing cables etc out all the time would be a pain. Does anyone know of a switch that could handle this job. I have done a search on the internet and eBay and found nothing that would mate up to a RJ8 Connector which the TX Monitor and Couplers use. If any one is doing what I am contemplating I would like to hear from you. Tnx.
73 De Mike VE3YF http://www.ve3yf.com [http://www.ve3yf.com/] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: P3/TX Mon Coupler Switching Idea
|
|
> I am thinking of getting a 2nd DCHF Coupler for my P3 TX Monitor
> Setup. This way I could Monitor 2 Outputs from the same P3. ... > Does anyone know of a switch that could handle this job. Here's the one I use. It allows switching up to four 8P8C (RJ-45) connectors. $10 from Amazon: https://smile.amazon.com/gp/product/B00AUB3SSA/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1 Alan N1AL ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: P3/TX Mon Coupler Switching Idea
|
|
In reply to this post by Mike VE3YF
Hi Alan:
Tnx for the info, good to see someone else has done it. Question though, does the Coupler cable use RJ45 connectors, reason I ask I see on the Elecraft site it says RJ8, and I am not finding too much info on the Internet ref RJ8 Connectors. Perhaps I am reading too much into it. 73 De Mike VE3YF http://www.ve3yf.com [http://www.ve3yf.com/] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: P3/TX Mon Coupler Switching Idea
|
|
FYI, an RJ-8 modular plug will plug right in to an RJ-45 modular
jack.... The retention key on the connector centers it in the RJ-45 jack so that the 4 center conductors are lined up. The key to making this work is to verify: 1) How are the jacks wired on the switch: 568A or 568B. 2) Match up the wiring in and out on the two P3 TxMon couplers' twisted pair jumpers and the patch cable you buy/make/modify to be the common jumper back from the switch to the P3 rear panel. Eesentially, you're making sure Elecraft used straight through wiring and not some sort of crossover arrangement or other between the P3 and the couplers. DON'T plug it all up UNLESS and UNTIL you map the conductors to make SURE they have continuity and continuity in accordance with the wire conductor order used on the P3 and the coupler. PROBABLY, Elecraft used straight through wiring, so it is just a matter of making the additional straight through patch cord to go from the P3 to the switch in/out. IF you want to get fancy and have the tools/skillset, make all new cables... Use RJ-8 on the P3 and couple ends and use RJ-45 on the ends that will plug into the switch. Holler if this has completely confused you and I will amplify/clarify. 73, ______________________ Clay Autery, KY5G MONTAC Enterprises (318) 518-1389 On 6/18/2016 4:36 AM, Mike VE3YF wrote: > Hi Alan: > > Tnx for the info, good to see someone else has done it. Question though, does the Coupler cable use RJ45 connectors, reason I ask I see on the Elecraft site it says RJ8, and I am not finding too much info on the Internet ref RJ8 Connectors. Perhaps I am reading too much into it. > > 73 De Mike > VE3YF > > http://www.ve3yf.com > [http://www.ve3yf.com/] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: P3/TX Mon Coupler Switching Idea
|
|
In reply to this post by Mike VE3YF
Followup:
Looking in the manual, the picture of the TXMON board clearly shows that the modular jack has 8 conductors. I'm almost certain that is an RJ-45 8P8C jack... But from what I can see, they are using AT LEAST conductors 2,4,6, and 8... (the solid wires for both 568A and 568B). You can see traces coming back from those 4 conductors to some SMT components on the board indicating the conductors are in use. Cannot tell if the other four connect at the board for sure. So... either they are 1) using all 8 wires, 2) Using 4 wires and grounding the paired wires to reduce crosstalk or RFI, or 3) they are using 4 wires for signals and leaving the other four completely open, thus surrendering the value of twisted pair. High probability that Elecraft used straight through wiring but verify anyway... Bottom Line... LOOK at your coupler cable.... count the conductors... If there are 8, then good. Take the two ends and hold them side by side with gold conductors facing you. IF the conductor color code from left to right match between the two cable ends, it is straight through wiring on the patch/jumper cable. Pretty conclusive that all you need to do is use quality CAT5e or better patch cables... chore over. But at least go through the verification process. The more I think about it, no to, the more I am beginning to believe the "RJ8" think in the manual is a typo ripe for inclusion on an Errata sheet. :-) ______________________ Clay Autery, KY5G MONTAC Enterprises (318) 518-1389 On 6/18/2016 4:36 AM, Mike VE3YF wrote: > Hi Alan: > > Tnx for the info, good to see someone else has done it. Question though, does the Coupler cable use RJ45 connectors, reason I ask I see on the Elecraft site it says RJ8, and I am not finding too much info on the Internet ref RJ8 Connectors. Perhaps I am reading too much into it. > > > > 73 De Mike > VE3YF > > http://www.ve3yf.com > [http://www.ve3yf.com/] > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: P3/TX Mon Coupler Switching Idea
|
|
In reply to this post by Mike VE3YF
To make sure I have truly beat this horse to death...
Go here: *http://www.elecraft.com/manual/P3%20Xmit%20Mon%20FAQ-ver-A-7.pdf * This is a Tx Mon FAQ... Page 6, 3c. "These 2 items will be connected with CAT5/CAT6 cable plugging into RJ45 jacks." "RJ8" in the Tx Mon Installation Manual is a "typo". 73, ______________________ Clay Autery, KY5G MONTAC Enterprises (318) 518-1389 On 6/18/2016 4:36 AM, Mike VE3YF wrote: > Hi Alan: > > Tnx for the info, good to see someone else has done it. Question though, does the Coupler cable use RJ45 connectors, reason I ask I see on the Elecraft site it says RJ8, and I am not finding too much info on the Internet ref RJ8 Connectors. Perhaps I am reading too much into it. > > 73 De Mike > VE3YF ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: P3/TX Mon Coupler Switching Idea
|
|
In reply to this post by Mike VE3YF
One of the guys at Elecraft (Mike?) did this with a cheap switch box available off Amazon. I took that box and added some video analog switches and a band decoder to do it automagically and basis power level. Its a simple matter to do. Just get creative.
Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner – Operator Villa Grand Piton - J68HZ Soufriere, St. Lucia W.I. Rent it: www.VillaGrandPiton.com email: [hidden email] > On Jun 17, 2016, at 8:10 PM, Mike VE3YF <[hidden email]> wrote: > > I am thinking of getting a 2nd DCHF Coupler for my P3 TX Monitor Setup. This way I could Monitor 2 Outputs from the same P3. Currently I have a coupler right after my main linear via Ant 1 on the K3, but want to add a second coupler to the output of the KPA500 via Ant 2 on the K3. I then could switch between the outputs and use the same P3. I realize I can only use 1 coupler at a time, but changing cables etc out all the time would be a pain. Does anyone know of a switch that could handle this job. I have done a search on the internet and eBay and found nothing that would mate up to a RJ8 Connector which the TX Monitor and Couplers use. If any one is doing what I am contemplating I would like to hear from you. Tnx. > > 73 De Mike > VE3YF > > http://www.ve3yf.com > [http://www.ve3yf.com/] > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
«
Return to Elecraft
|
1 view|%1 views
| Free forum by Nabble | Edit this page |