Re: [Elecraft] Rx antenna protection
DXE ARAV3-1P - DXE RG 5000HD. I've ordered a DXE ARAVS-1P Receive antenna, and DXE RG 5000HD front end protector from USA, I'm building a CW skimmer project in a small ...ish back yard with close by transmitting antennas etc, my investment should ! Fit the bill nicely.I hope. Ken.. G0ORH Sent from my iPad > On 15 Aug 2017, at 22:21, Phillip Zminda wrote: > > Paul, > > I have used a BOG, a Pixel Loop and a Wellbrook loop receiving antennas. The > BOG was ok but signal levels were very low and it needed a preamp. The BOG > needs a lot of tweaking and good grounds at both ends. K1FZ is the expert on > BOGs and can provide a wealth of information as well as custom transformers. > I used it one winter but didn’t want to leave in the yard when mowing season > started. The Pixel loop worked fairly well but I sold it and got a Wellbrook > ALA 1530, which I think has a cleaner design. The Wellbrook works quite well > at reducing the noise level. The signal levels are lower but with much > reduced noise. My loop rotor died and it’s in a fixed position but at about a > 6 ft. height it doesn’t seem highly directional. I think the Wellbrook is > still cheaper than the Pixel. Andrew Ikin at Wellbrook is very helpful in > answering any questions about loop applications > > My receive antenna is far enough from the transmit antenna that I have never > had any issues with the COR activating, even at 500 watts. > > Good luck with your choice. > > Phil > N3ZP > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to g0...@sky.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] RX antenna protection
I am aware of the RFI warning however to me there is a huge difference between detecting RFI and protecting the expensive transceiver from RF damage. Apparently the K3S does both. John KK9A Bob McGraw K4TAX wrote: Tue Aug 15 11:59:04 EDT 2017 See page 63 of the manual. Also page 70 under Receive."*HI RFI* warning:" RFI DET - *NOR *enables detection of high RFI at the antenna in receive mode. (see HI RFI warning. *Troubleshooting*). Set to OFF to disable the warning. 73 Bob, K4TAX K3S s/n 10163 On 8/15/2017 9:50 AM, john at kk9a.com wrote: > Great question! I asked the same thing once and never got an answer so to > be safe I either short the RX antenna during transmit or if SO2R I use DXE > receiver guards. It would be nice if the K3S had a similar built in > protector. > > John KK9A __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] RX antenna protection
This is my experience. Making a large-signal preamp is usually a waste of power since it is a mixer that is a limiting factor. I can believe that a device from DX Engineering can be poorly designed. Have NCC-2. Weighs like a tank but fragile like a baby. Ignacy, NO9E On Tue, Aug 15, 2017 at 3:59 PM, Vic Rosenthal wrote: > I disagree. A good preamp like the DXE preamps can handle large signals > and still be linear. That means they can output a lot of power. Do not > assume you are safe if there is a preamp unless it is a lousy one! > > Vic 4X6GP > > > On 15 Aug 2017, at 18:07, Ignacy wrote: > > > > If a receive antenna has a preamp, there no need to do any antenna guard > > since the preamp cannot destroy K3. > > > > I used K9AY, K7TJR 3 el array, and a Wellbrook loop close to transmit > > antennas. None was turned off during transmit. Both have preamps and > > nothing was damaged despite running a KW. Of all 3, K7TJR was the best > by > > far. > > > > BTW, the RX ANT input in K3 is protected by a RF activated relay. > > > > Ignacy, NO9E > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] RX antenna protection
I had one once. It was a tremendous TVI generator…. K4TO > On Aug 15, 2017, at 4:07 PM, KENT TRIMBLE wrote: > > The Johnson 250-39 and B&W 380 T/R switches both had a certain amount of > "suck-out" but they did protect tube receivers. > > I had both (still do) and preferred the Johnson. > > http://wireless-girl.com/Projects/TRswitches/Johnson/ > > Note the warning about use with solid-state equipment, however. > > 73, > > Kent K9ZTV > > > > On 8/15/2017 11:58 AM, someone wrote: >> Just a note to say that years ago, I had a B&W Electronic Antenna Switch (I >> think it was called) that had one or two tubes in it. >> It worked perfectly to bias the receive completely and immediately as soon >> as transmit was detected. It allowed full break-in for CW work. I would >> like to see something like this again today in solid state. I think this >> would be the ticket for what you need. I haven’t looked, so I don’t know if >> anyone is marketing such a device. >> >> > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k...@arrl.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] RX antenna protection
The Johnson 250-39 and B&W 380 T/R switches both had a certain amount of "suck-out" but they did protect tube receivers. I had both (still do) and preferred the Johnson. http://wireless-girl.com/Projects/TRswitches/Johnson/ Note the warning about use with solid-state equipment, however. 73, Kent K9ZTV On 8/15/2017 11:58 AM, someone wrote: Just a note to say that years ago, I had a B&W Electronic Antenna Switch (I think it was called) that had one or two tubes in it. It worked perfectly to bias the receive completely and immediately as soon as transmit was detected. It allowed full break-in for CW work. I would like to see something like this again today in solid state. I think this would be the ticket for what you need. I haven’t looked, so I don’t know if anyone is marketing such a device. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] RX antenna protection
I disagree. A good preamp like the DXE preamps can handle large signals and still be linear. That means they can output a lot of power. Do not assume you are safe if there is a preamp unless it is a lousy one! Vic 4X6GP > On 15 Aug 2017, at 18:07, Ignacy wrote: > > If a receive antenna has a preamp, there no need to do any antenna guard > since the preamp cannot destroy K3. > > I used K9AY, K7TJR 3 el array, and a Wellbrook loop close to transmit > antennas. None was turned off during transmit. Both have preamps and > nothing was damaged despite running a KW. Of all 3, K7TJR was the best by > far. > > BTW, the RX ANT input in K3 is protected by a RF activated relay. > > Ignacy, NO9E __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] RX antenna protection
I'm using a Pixel Loop. Advantages are that it is small, can be rotated to null a noise source, and works on all HF bands. It is vertically polarized, so if you have a horizontal antenna you can get a useful diversity effect without too much physical separation. It has a built in relay that disconnects it to protect your receiver while transmitting. I use diversity almost all the time, and it definitely improves copy of CW signals. Vic 4X6GP > On 15 Aug 2017, at 17:01, Mark E. Musick wrote: > > Paul, > I use several different receive antennas and use all the ones I am going to > suggest. > For your small lot, you didn't say how small, I would look at the Pixel > loop, K9AY and RBOG. > I have used these and they work. You can get all three from DX Engineering. > From ARRAY Solutions there is the Shared Apex Loop. It will take up about > the same space as a K9AY. I have not used one of these so can't say > personally how well it works, but people I know that have used them speak > highly of this antenna. > You have gotten two good suggestions for front end protection. I use the DX > Engineering receiver guard model RG-5000. You don't need the RG-5000HD > unless you're in a contest environment. > Keep us posted on your progress. > > 73, > Mark, WB9CIF > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Chuck Milam, N9KY > Sent: Tuesday, August 15, 2017 1:16 PM > To: Elecraft Mail List > Subject: Re: [Elecraft] RX antenna protection > > Also, check out the DX Engineering Receiver Guard Electronic RF Limiters: > > > https://www.dxengineering.com/search/part-type/hf-receive-antenna-system-dev > ices/product-line/dx-engineering-receiver-guard-electronic-rf-limiters?autov > iew=SKU&sortby=Default&sortorder=Ascending > > --- > Chuck Milam, N9KY > n...@arrl.net > >> On Mon, Aug 14, 2017 at 11:07 PM, Drew AF2Z wrote: >> >> Same situation here: small space and would like to try some low noise >> receive antennas. I recently bought an Array Solutions AS-RXFEP rf >> limiter to use on the RX Ant port of my K3. Haven't tried it yet but >> looks like it will do the job. >> >> >> 73, >> Drew >> AF2Z >> >> >> >> >>> On 08/14/17 21:48, W1PEF wrote: >>> >>> I am considering a Rx antenna but my property is small and concerned >>> about strong signals over powering the receiver. Does the K3S have >>> built-in protection? >>> Does anyone use a loop receive antenna or BOG antenna ... would like >>> some recommendations from actual users of receive antennas. >>> Have the complete K-Line and would like to improve my ability to hear. >>> Thanks for any advice... >>> Paul >>> W1PEF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] RX antenna protection
John, Very sound advice. I am using a Alpha Delta T33g50 that I picked up at HRO Denver, Co; The Red Pittaya antenna (Cobwebb) is 15 feet below the TH-7 which is emitting aprox 500W. It has survived for 12 months so far, which has amazed me. Regards Tim, A45WG > On Aug 15, 2017, at 10:06 PM, John K9UWA > wrote: > > We have been operating this way with full break-in for many years using the > KD9SV products. First it was just the "Front End Saver" which removes and > grounds the incoming rcv antenna from your radio during transmit. As a "Fail > Safe" the device also prevents the Amplifier from working by removing the > PTT line to the amp if by any chance the relays in the KD9SV device fail to > operate. Later it is now incorporated into the various RBOG and other > Pre-Amp devices that KD9SV sells... through DX-Engineering. > > Disclaimer Statement: Yes I am a friend of Gary's. Call me a more than > happy customer. I complained many years ago after I fried the front end of > my IC-765 radios a couple times and Gary started building these devices. > They Work and I am happy. No more blown front ends no more blown > pre-amps. > > John k9uwa > >> Just a note to say that years ago, I had a B&W Electronic Antenna Switch (I >> think it was called) that had one or two tubes in it. It worked perfectly to >> bias the receive completely and immediately as soon as transmit was >> detected. >> It allowed full break-in for CW work. I would like to see something like >> this >> again today in solid state. I think this would be the ticket for what you >> need. >> I havenTMt looked, so I donTMt know if anyone is marketing such a device. >> >> Rich, n0ce > > John Goller, K9UWA & Jean Goller, N9PXF > Antique Radio Restorations > k9...@arrl.net > Visit our Web Site at: > http://www.JohnJeanAntiqueRadio.com > 4836 Ranch Road > Leo, IN 46765 > USA > 1-260-637-6426 > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to a4...@sy-edm.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] RX antenna protection
We have been operating this way with full break-in for many years using the KD9SV products. First it was just the "Front End Saver" which removes and grounds the incoming rcv antenna from your radio during transmit. As a "Fail Safe" the device also prevents the Amplifier from working by removing the PTT line to the amp if by any chance the relays in the KD9SV device fail to operate. Later it is now incorporated into the various RBOG and other Pre-Amp devices that KD9SV sells... through DX-Engineering. Disclaimer Statement: Yes I am a friend of Gary's. Call me a more than happy customer. I complained many years ago after I fried the front end of my IC-765 radios a couple times and Gary started building these devices. They Work and I am happy. No more blown front ends no more blown pre-amps. John k9uwa > Just a note to say that years ago, I had a B&W Electronic Antenna Switch (I > think it was called) that had one or two tubes in it. It worked perfectly to > bias the receive completely and immediately as soon as transmit was detected. > It allowed full break-in for CW work. I would like to see something like this > again today in solid state. I think this would be the ticket for what you > need. > I havenTMt looked, so I donTMt know if anyone is marketing such a device. > > Rich, n0ce John Goller, K9UWA & Jean Goller, N9PXF Antique Radio Restorations k9...@arrl.net Visit our Web Site at: http://www.JohnJeanAntiqueRadio.com 4836 Ranch Road Leo, IN 46765 USA 1-260-637-6426 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] RX antenna protection
I just read Ignacy’s post telling that the K3 receive ant input has a RF activated relay. I’m glad to see that. Rich, n0ce From: Richard Fjeld<mailto:rpfj...@outlook.com> Sent: Tuesday, August 15, 2017 12:00 PM To: Bob McGraw K4TAX<mailto:rmcg...@blomand.net>; elecraft@mailman.qth.net<mailto:elecraft@mailman.qth.net> Subject: Re: [Elecraft] RX antenna protection I haven’t been following this, and just noticed it, so I hope I am in sync with this. Just a note to say that years ago, I had a B&W Electronic Antenna Switch (I think it was called) that had one or two tubes in it. It worked perfectly to bias the receive completely and immediately as soon as transmit was detected. It allowed full break-in for CW work. I would like to see something like this again today in solid state. I think this would be the ticket for what you need. I haven’t looked, so I don’t know if anyone is marketing such a device. Rich, n0ce From: Bob McGraw K4TAX<mailto:rmcg...@blomand.net> Sent: Tuesday, August 15, 2017 11:00 AM To: elecraft@mailman.qth.net<mailto:elecraft@mailman.qth.net> Subject: Re: [Elecraft] RX antenna protection See page 63 of the manual. Also page 70 under Receive."*HI RFI* warning:" RFI DET - *NOR *enables detection of high RFI at the antenna in receive mode. (see HI RFI warning. *Troubleshooting*). Set to OFF to disable the warning. 73 Bob, K4TAX K3S s/n 10163 On 8/15/2017 9:50 AM, j...@kk9a.com wrote: > Great question! I asked the same thing once and never got an answer so to > be safe I either short the RX antenna during transmit or if SO2R I use DXE > receiver guards. It would be nice if the K3S had a similar built in > protector. > > John KK9A > > W1PEF wrote > Mon Aug 14 21:48:29 EDT 2017 > > I am considering a Rx antenna but my property is small and concerned about > strong signals over powering the receiver. Does the K3S have built-in > protection? > Does anyone use a loop receive antenna or BOG antenna ... would like some > recommendations from actual users of receive antennas. > Have the complete K-Line and would like to improve my ability to hear. > Thanks for any advice... > Paul > W1PEF > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcg...@blomand.net > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rpfj...@outlook.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rpfj...@outlook.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] RX antenna protection
I haven’t been following this, and just noticed it, so I hope I am in sync with this. Just a note to say that years ago, I had a B&W Electronic Antenna Switch (I think it was called) that had one or two tubes in it. It worked perfectly to bias the receive completely and immediately as soon as transmit was detected. It allowed full break-in for CW work. I would like to see something like this again today in solid state. I think this would be the ticket for what you need. I haven’t looked, so I don’t know if anyone is marketing such a device. Rich, n0ce From: Bob McGraw K4TAX<mailto:rmcg...@blomand.net> Sent: Tuesday, August 15, 2017 11:00 AM To: elecraft@mailman.qth.net<mailto:elecraft@mailman.qth.net> Subject: Re: [Elecraft] RX antenna protection See page 63 of the manual. Also page 70 under Receive."*HI RFI* warning:" RFI DET - *NOR *enables detection of high RFI at the antenna in receive mode. (see HI RFI warning. *Troubleshooting*). Set to OFF to disable the warning. 73 Bob, K4TAX K3S s/n 10163 On 8/15/2017 9:50 AM, j...@kk9a.com wrote: > Great question! I asked the same thing once and never got an answer so to > be safe I either short the RX antenna during transmit or if SO2R I use DXE > receiver guards. It would be nice if the K3S had a similar built in > protector. > > John KK9A > > W1PEF wrote > Mon Aug 14 21:48:29 EDT 2017 > > I am considering a Rx antenna but my property is small and concerned about > strong signals over powering the receiver. Does the K3S have built-in > protection? > Does anyone use a loop receive antenna or BOG antenna ... would like some > recommendations from actual users of receive antennas. > Have the complete K-Line and would like to improve my ability to hear. > Thanks for any advice... > Paul > W1PEF > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcg...@blomand.net > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rpfj...@outlook.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] RX antenna protection
See page 63 of the manual. Also page 70 under Receive."*HI RFI* warning:" RFI DET - *NOR *enables detection of high RFI at the antenna in receive mode. (see HI RFI warning. *Troubleshooting*). Set to OFF to disable the warning. 73 Bob, K4TAX K3S s/n 10163 On 8/15/2017 9:50 AM, j...@kk9a.com wrote: Great question! I asked the same thing once and never got an answer so to be safe I either short the RX antenna during transmit or if SO2R I use DXE receiver guards. It would be nice if the K3S had a similar built in protector. John KK9A W1PEF wrote Mon Aug 14 21:48:29 EDT 2017 I am considering a Rx antenna but my property is small and concerned about strong signals over powering the receiver. Does the K3S have built-in protection? Does anyone use a loop receive antenna or BOG antenna ... would like some recommendations from actual users of receive antennas. Have the complete K-Line and would like to improve my ability to hear. Thanks for any advice... Paul W1PEF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rmcg...@blomand.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] RX antenna protection
If a receive antenna has a preamp, there no need to do any antenna guard since the preamp cannot destroy K3. I used K9AY, K7TJR 3 el array, and a Wellbrook loop close to transmit antennas. None was turned off during transmit. Both have preamps and nothing was damaged despite running a KW. Of all 3, K7TJR was the best by far. BTW, the RX ANT input in K3 is protected by a RF activated relay. Ignacy, NO9E -- View this message in context: http://elecraft.365791.n2.nabble.com/RX-antenna-protection-tp7633402p7633412.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] RX antenna protection
John, The K3S does have protection on the RX ANT input. It is in the form of a COR (carrier operated relay) that will close in the presence of a high RF Field. While that protects the K3S, the relay clacking can be bothersome, so if you do hear that relay clacking, you may want to consider some form of external protection. 73, Don W3FPR On 8/15/2017 10:50 AM, j...@kk9a.com wrote: Great question! I asked the same thing once and never got an answer so to be safe I either short the RX antenna during transmit or if SO2R I use DXE receiver guards. It would be nice if the K3S had a similar built in protector. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] RX antenna protection
Great question! I asked the same thing once and never got an answer so to be safe I either short the RX antenna during transmit or if SO2R I use DXE receiver guards. It would be nice if the K3S had a similar built in protector. John KK9A W1PEF wrote Mon Aug 14 21:48:29 EDT 2017 I am considering a Rx antenna but my property is small and concerned about strong signals over powering the receiver. Does the K3S have built-in protection? Does anyone use a loop receive antenna or BOG antenna ... would like some recommendations from actual users of receive antennas. Have the complete K-Line and would like to improve my ability to hear. Thanks for any advice... Paul W1PEF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] RX antenna protection
Paul, I use several different receive antennas and use all the ones I am going to suggest. For your small lot, you didn't say how small, I would look at the Pixel loop, K9AY and RBOG. I have used these and they work. You can get all three from DX Engineering. >From ARRAY Solutions there is the Shared Apex Loop. It will take up about the same space as a K9AY. I have not used one of these so can't say personally how well it works, but people I know that have used them speak highly of this antenna. You have gotten two good suggestions for front end protection. I use the DX Engineering receiver guard model RG-5000. You don't need the RG-5000HD unless you're in a contest environment. Keep us posted on your progress. 73, Mark, WB9CIF -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Chuck Milam, N9KY Sent: Tuesday, August 15, 2017 1:16 PM To: Elecraft Mail List Subject: Re: [Elecraft] RX antenna protection Also, check out the DX Engineering Receiver Guard Electronic RF Limiters: https://www.dxengineering.com/search/part-type/hf-receive-antenna-system-dev ices/product-line/dx-engineering-receiver-guard-electronic-rf-limiters?autov iew=SKU&sortby=Default&sortorder=Ascending --- Chuck Milam, N9KY n...@arrl.net On Mon, Aug 14, 2017 at 11:07 PM, Drew AF2Z wrote: > Same situation here: small space and would like to try some low noise > receive antennas. I recently bought an Array Solutions AS-RXFEP rf > limiter to use on the RX Ant port of my K3. Haven't tried it yet but > looks like it will do the job. > > > 73, > Drew > AF2Z > > > > > On 08/14/17 21:48, W1PEF wrote: > >> I am considering a Rx antenna but my property is small and concerned >> about strong signals over powering the receiver. Does the K3S have >> built-in protection? >> Does anyone use a loop receive antenna or BOG antenna ... would like >> some recommendations from actual users of receive antennas. >> Have the complete K-Line and would like to improve my ability to hear. >> Thanks for any advice... >> Paul >> W1PEF >> >> >> >> > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > n...@arrl.net > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to markmus...@sbcglobal.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] RX antenna protection
Also, check out the DX Engineering Receiver Guard Electronic RF Limiters: https://www.dxengineering.com/search/part-type/hf-receive-antenna-system-devices/product-line/dx-engineering-receiver-guard-electronic-rf-limiters?autoview=SKU&sortby=Default&sortorder=Ascending --- Chuck Milam, N9KY n...@arrl.net On Mon, Aug 14, 2017 at 11:07 PM, Drew AF2Z wrote: > Same situation here: small space and would like to try some low noise > receive antennas. I recently bought an Array Solutions AS-RXFEP rf limiter > to use on the RX Ant port of my K3. Haven't tried it yet but looks like it > will do the job. > > > 73, > Drew > AF2Z > > > > > On 08/14/17 21:48, W1PEF wrote: > >> I am considering a Rx antenna but my property is small and concerned >> about strong signals over powering the receiver. Does the K3S have built-in >> protection? >> Does anyone use a loop receive antenna or BOG antenna ... would like some >> recommendations from actual users of receive antennas. >> Have the complete K-Line and would like to improve my ability to hear. >> Thanks for any advice... >> Paul >> W1PEF >> >> >> >> > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n...@arrl.net > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] RX antenna protection
Same situation here: small space and would like to try some low noise receive antennas. I recently bought an Array Solutions AS-RXFEP rf limiter to use on the RX Ant port of my K3. Haven't tried it yet but looks like it will do the job. 73, Drew AF2Z On 08/14/17 21:48, W1PEF wrote: I am considering a Rx antenna but my property is small and concerned about strong signals over powering the receiver. Does the K3S have built-in protection? Does anyone use a loop receive antenna or BOG antenna ... would like some recommendations from actual users of receive antennas. Have the complete K-Line and would like to improve my ability to hear. Thanks for any advice... Paul W1PEF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
