Re: Topband: Made it! 80 Years a Ham

Hey Paul, Happy 80th anniversary . I started with 13 years old this fantastic hobby. Nice to hear you are still active !!...What an inspiration !!! 73 and take care. Doug, CO8DM - Original Message - From: "PAUL M ELLIOTT" To: Sent:

Topband: 160 and 80m antenna...

Hi Topbanders !!!; Finally I got an FCP isolation transformer for 160m...I am planning install a 160m Inv L + FCP...I am wondering if I can add 80m to this system. I know the 160m FCP isolation transformer only work on 160m but maybe adding a relay is possible to work on 80m. Any idea?

Topband: Horizontal Waller Flag (Single or double)...

Hi, I have a 5 elem 6m yagi...the boom is 15 ft long... I have been reading about the Waller Flag...both version, Vertical and Horizontal. I would like add the WF to my 6m yagi or a single WF (one loop)...I know few hams around the world did it and there is no interaction. (PY1RO, PY2XB, etc)

Topband: Phone segment for EU stations on 75 meters?

Hi, What is the Phone segment for EU stations on 75 meters? I am tunning my 75/80m antenna for WAE SSB... it is very narrow (100 Khz), so, I want to know the most active segment during contest...Resonance (SWR 1:1) on 3625 Khz now...Is it Ok or to low?...maybe can work split... Thanks, Doug,

Topband: Ground screen ????

Hi, Need some ideas from your side... I am trying to find a good solution for my 160/80m antenna. I am thinking about some kind of Inv L with an 80m trap as a radiator for both bands. But, what about the counterpoise...Unfortunately in my small city lot I can´t install radials and I can´t

Topband: How can I tune an FCP without isolation transformer ???

Hi Topbanders, I am building an Inv L for 160m with FCP. As i can get an isolation transformer i will add a series loading coil (about 17uH) to my FCP and then an RF choke. How can i tune my FCP + Loading coil ??...i need a balance between FCP+Loading coil and the Radiator. Can i build 2 FCP

Re: Topband: How can I tune an FCP without isolation transformer ???

- Original Message - From: "Douglas Ruz (CO8DM)" <co...@frcuba.co.cu> To: <topband@contesting.com> Sent: Monday, February 01, 2016 2:49 PM Subject: Topband: How can I tune an FCP without isolation transformer ??? Hi Topbanders, I am building an Inv L for 160m with FCP. As i

Topband: Bent verticals ???

Hi Topbanders, I have been reading the article "Compact 4 squares and other ways to get gain on 40, 80 and 160m" written by K9RS and N9NB. It is very interesting. Someone on the list with experience can answer few questions off the list. I would like install something like that on low bands

Re: Topband: Ideas for xmit antennas for new QTH in KH6

Hi, Read this article written by Rudy, N6LF: http://rudys.typepad.com/ant/files/antenna_array_single_support.pdf Maybe you can find your solution. GL, 73Douglas, CO8DM / T49A Founder of T48K "No creo que haya alguna emoción más intensa para un inventor que ver alguna de sus creaciones

Re: Topband: 4SQ around tower

Hi Rudy, Maybe i am wrong but i think Jorge, CX6VM/CW5W has something similar for 160m. Try contact him and ask about his experience. I think he is member of this list. GL with the project. 73Douglas, CO8DM / T48K "No creo que haya alguna emoción más intensa para un inventor que ver

Re: Topband: WAS 160

I heard N4OGW from MS last night... 73Douglas, CO8DM "No creo que haya alguna emoción más intensa para un inventor que ver alguna de sus creaciones funcionando. Esa emoción hace que uno se olvide de comer, de dormir, de todo." - Nikola Tesla - Original Message - From: "Peter

Topband: CO8DM on 1861 Khz CW...

Hi, I am calling on 1861 Khz...only 100 watts. If someone would like to try. 73Douglas, CO8DM "No creo que haya alguna emoción más intensa para un inventor que ver alguna de sus creaciones funcionando. Esa emoción hace que uno se olvide de comer, de dormir, de todo." - Nikola Tesla

Re: Topband: CO8DM on 1861 Khz CW...

From: "Jeff AC0C" <keepwalking...@ac0c.com> To: "Douglas Ruz (CO8DM)" <co...@frcuba.co.cu>; <topband@contesting.com> Sent: Saturday, December 05, 2015 11:22 PM Subject: Re: Topband: CO8DM on 1861 Khz CW... Douglas, You may want to move up a bit more.

Re: Topband: CO8DM on 1861 Khz CW...

i am now on 1827.5 Khz 73Douglas, CO8DM "No creo que haya alguna emoción más intensa para un inventor que ver alguna de sus creaciones funcionando. Esa emoción hace que uno se olvide de comer, de dormir, de todo." - Nikola Tesla - Original Message - From: "Dou

Topband: i am calling on 1827.5 Khz now

73Douglas, CO8DM "No creo que haya alguna emoción más intensa para un inventor que ver alguna de sus creaciones funcionando. Esa emoción hace que uno se olvide de comer, de dormir, de todo." - Nikola Tesla _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: CE1TBN

Congratulations Marco ...good job !!! 73Douglas, CO8DM "No creo que haya alguna emoción más intensa para un inventor que ver alguna de sus creaciones funcionando. Esa emoción hace que uno se olvide de comer, de dormir, de todo." - Nikola Tesla - Original Message - From:

Topband: Waller Loop ???

Hi Topbanders, I have been reading about Waller Loop in the last couple of days...it is an amazing antenna for low bands. I tried answers few questions but i can´t...need help from the list: About building...can i use aluminum tubing to build the loop and the 30ft boom ???...if i can use

Re: Topband: Fast relay ???

t;Petr Ourednik" <indi...@xsmail.com> To: "Douglas Ruz (CO8DM)" <co...@frcuba.co.cu>; <topband@contesting.com>; <mar...@ok1rr.com> Sent: Monday, August 31, 2015 12:23 PM Subject: Re: Topband: Fast relay ??? Doug I am going to ship you the relays for free. J

Re: Topband: KD9SV-OK1RR relays ???

Tom and all members of the list thanks for your ideas and time . I have a plan B: I added a BNC female connector in the rear panel of my old Yaesu, FT747 (It is an FT80C, the commercial version with metallic chassis) few months ago. I was using that BNC to feed an SDR receiver using the

Topband: Fast relay ???

Martin, Tom and all members of the list, The AS RXFEP is very nice but it is very expensive. I prefer the KD9SV modify by Martin, OK1RR...it is very easy to build but i need only the relays...someone can help me to get those relays ???...are they available at digikey or mouser ??? The

Topband: Folded CounterPoise ???

Hi, Originally, the FCP is connected in the center (33ft each side for 160m)...Did somebody try connect it at one END ???. Probably i will install my vertical in a corner of my property and some neighbours houses do not allow connect the FCP in the middle. any idea? Thanks,

Topband: KD9SV-OK1RR relays ???

Hi Martin, OK1RR, I tried email direct to you but it was not possible. I am sorry about the other member of the list. It is about the FRONT END SAVER relays: I have two different relays here and i would like to know if i can use one of them in your design: I have HFD2 Subminiature DIP

Re: Topband: KD9SV-OK1RR relays ???

Tim, Yes, you are absolutely right Thanks, 73Douglas, CO8DM No creo que haya alguna emoción más intensa para un inventor que ver alguna de sus creaciones funcionando. Esa emoción hace que uno se olvide de comer, de dormir, de todo. - Nikola Tesla - Original Message - From:

Re: Topband: RX antenna ???

I totally agree with you Steve...i will try the flag first without preamp and see how it play. Actually, i will have a short coax run...about 30 or 40 ft... 73Douglas, CO8DM No creo que haya alguna emoción más intensa para un inventor que ver alguna de sus creaciones funcionando. Esa

Re: Topband: RX antenna ???

que ver alguna de sus creaciones funcionando. Esa emoción hace que uno se olvide de comer, de dormir, de todo. - Nikola Tesla - Original Message - From: N2TK, Tony tony@verizon.net To: 'Douglas Ruz (CO8DM)' co...@frcuba.co.cu Sent: Thursday, August 27, 2015 10:27 AM Subject: RE

Re: Topband: RX antenna ???

Shoppa To: Douglas Ruz (CO8DM) Sent: Thursday, August 27, 2015 10:46 AM Subject: Re: Topband: RX antenna ??? Any sort of loop you can put in, will be a superior receiving antenna to using your transmitting antenna. Most of the simple loops have a terminating resistor that is 400