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Re: Topband: Lowband Preamp

The W7IUV  lowband preamp is easy to construct and has worked for me.  Quite a bit of info on the net.Jim/k2hn E.P To:Topband ListNov 21 at 4:23 PMhello i am still looking for a pre amp for my BOG antenna 61 meter long is any one can recommend something that do work

Topband: Topband FT8

I agree and lets remember the ol'timers (old school?) made 160 what it is today from W1BB on up.  They  did it mostly without the aid of computers but with the use of electronic theory and formulas using a pencil.  The antennas and practices are still in use today. 73, JimK2HN Gentlemen, Why

Re: Topband: Top Band and JT65

    I hate to weigh in on this since it's been beaten to death already but just another opinion.  Over the years I've tried several digital modes starting with psk31.  There weren't many  signals on the band at that time but now I see there are many.  Not to long ago I ventured into JT65 and

Re: Topband: Out-door antenna tuning boxes

If you google fly tying materials normally some of these outlets have a pretty good assortment of boxes.  Most or partitioned but some have foam which can be removed or removable partitions. Jimk2hn _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: Best Headphones for CW

Ditto on the Sony MDR-7506.  Have been using them for quite a while.   Not sure why they were my choice but generally I do quite a bit of research before buying.Regards,Jim/k2hn _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: Preampm for 160 meter receive loop

I've made and used several W7IUV Preamps over the years and worked well.  There should be schematics on line still but I do have them if anyone is interested.   Regards, Jim/k2hn _ Topband Reflector Archives - http://www.contesting.com/_topband

Topband: Windmill Farm

Thanks Frank, glad to hear/see that:(   I guess that answers that question.Jimk2hn "The Quartz Hill Contesters  -- once very well known as ZL6QH --were forced to shut down their spectacular contesting locationby the RFI from a wind farm installed in the same location astheir contest station."

Topband: Wind Farming

Hello all,There is talk of local farmers bringing in windmill companies.  With the low prices now on milk it is one way to boost income.  Wondering if anyone has experienced any interference/noise from the generators.ThanksJimk2hn _ Topband Reflector Archives -

Topband: Yaesu ft1000mp Mk5

Just put a real nice one of these on QRZ if anyone is looking for one.Tnx,Jim,k2hn _ Topband Reflector Archives - http://www.contesting.com/_topband

Topband: Capacitors and Coil

Hi all,Not trying to push a sale but thought someone on topband could use the variables and roller inductor I just put on sale on QRZ. 73,jim/k2hn _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: Remote Antenna Tuner

Gary,Check out Array Solutions - AT615, I believe it is.  Only other I found was MFJ. Jimk2hn _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: Tuner

Many thanks to all for your input on possible tuners.  I decided to get a Ten Tec 238 and give it a try.  A gentleman on Ebay was selling a complete TT station and was good enough to sell me the tuner alone at a reasonable price.   It seems to be a long time favorite and with a little

Topband: Antenna Tuners

Hello all,Would you have any recommendations for antenna tuners?  Have been looking at the automatics, Palstar, Mfj, LDG At-1000Proii etc..  Have been using an old Dentron which doesn't have very close markings on the dials and getting tired of turning and adjusting.  Another option would be

Topband: VK-64 Voice/CW Memory Keyer

Before I put this on QRZ I thought I'd post this to the list in case someone here may be interested.  I'm selling my VK-64 w/mic cable (8pin), cw cable and all complete in original box.  Please respond to my email on qrz.RegardsJimk2hn _ Topband Reflector Archives -

Topband: Topband Forum

Hi Tom,I have a coffee cup here that says "Don't let the turkeys get you down".  By the way my SB1000 is purring like a kitten on the low bands now and nice results on the rbn thanks to you. Jimk2hn _ Topband Reflector Archives - http://www.contesting.com/_topband

Topband: Topband Strange Propagation

I don't want to start another "run" here but I was a bit disturbed last night after deciding to try for a new one, K5P.  Guys all over the DX transmitting freq and one who must have fallen asleep with his finger on the send button.   He must have sent his call sign for over a minute.  I sent my

Topband: Strange propagation

 " SO what is the beef?  RHR is just another form of progress due to advances in technology, if we did not embrace progress in ham radio technology we would all still be talking to one another on Lunch boxes and Gooney boxes! " Problems begin when technology changes ethics. Jimk2hn 

Re: Topband: W1BB (not K1BB)

To all those who may be new to the forum:  There are also several other exceptional pioneers of ham radio with amazing accomplishments that are willing to share their knowledge and experiences on this forum.  They provide a wealth   of information to people like myself with less electronics and

Re: Topband: SPTBDC Scheduling

"  I think that the timing of the December Stew is very poor.  Having it right near Christmas when many people are busy with family get togethers makes it difficult or impossible for some SP160 interested persons to participate." I'm Surprised that this hasn't come up before but possibly I

Topband: (no subject)

Huh? For QRP with a completely portable operation, I'd call that pretty  good. The late jazz saxophonist Gene Quill was sometimes criticized for being  a poor imitation of the great Charlie Parker. At one point, he handed  his horn to one of those critics, saying "Here -- YOU play Charlie  Parker

Topband: SB-1000

Both are N750 types. You need a #6 lug, a short #6 screw (3/16th long), and  some #16 bus wire plus a brass washer that Ameritron will have.  The chokes  come from Ameritron no matter where you buy them. Thanks Tom,Re. the lug, screw and wire, I'm assuming the capacitor I ordered from them will

Re: Topband: SB-1000

Thanks to all for info on the capacitor.  The only place I had checked was rf parts but have not ordered yet.  Also wanted to come up with a #8 brass washer.  I'll go with a new original cap from Ameritron/mfj.  I saw the plate choke there but not the cap, will follow the link. I'll still be on

Re: Topband: SB-1000

My mistake on the last post.  The contact with nothing on it is when the bandswitch is in the 160 AND 80M position.  jimk2hn _ Topband Reflector Archives - http://www.contesting.com/_topband

Topband: SB-1000

Ah, quick look at the schematic.  Nothing on that bandswitch lug.  Seeing some solder on it thought for sure something missing.  Black ungrounded wire- schematic shows it grounded although just doubled over.  I will go over it thoroughly before taking up any more space on the forum. 

Topband: SB-1000

Just came off 20M, amp working fine.  Went to 160 plate and load controls have no control, no output. Plate current climbs high with any added drive (45-50W) and blew both 10amp fuses.Off comes the cover.jimk2hn _ Topband Reflector Archives - http://www.contesting.com/_topband

Topband: SB-1000

If it is being driven with 50 watts or more and does not tune into a 50 ohm  load, I'd carefully inspect the entire tank circuit and wiring of the tank.  This includes the switch (as Herb suggested). Thanks to all.  I will go over it again today.  I initially started out on 160 and then moved on

Topband: Heathkit SB-1000

Anybody know how to make an SB-1000 tune properly on 160?  Ok on other bands but doesn't like 160, dummy load or well tuned Inv.L.   Is it a quirk of the amp needing a modification or possibly a bad component?  Saw nothing obvious before putting it to use but have not had the cover off

Re: Topband: Shared Apex Loop Array

CTU 2014 - Session 6 Part 1 - Low Band Receive Antenna Discussion Q - W3LPL |   | |   | |   |   |   |   |   | | CTU 2014 - Session 6 Part 1 - Low Band Receive Antenna... | | | | View on www.youtube.com | Preview by Yahoo | | | |   | hi all annyone ever did test this setup?How does it perform

Re: Topband: shared apex loop array

Sri can't seem to get these links to work.  This is listed on Google then follow receiving antennas, etc.  Last try- hopefully it works. W3LPL - Contest University www.contestuniversity.com/.../W3LPL_Receiving_Antennas_2014.pptx - - Receiving Antennas - or - What happened to the.

Re: Topband: RFI - and lots of it - final status

Electricians worked today on the house grounding the entrance panel and checking out all of the wiring.  Now, everything is grounded to the panel.   They ran a line from the grounding directly to the ham room ground bus, checked all the outlets for any reverse etc.. They talked about putting a

Topband: RFI - and lots of it

I have and electrician coming next week who says he will check things out and first of all ground the breaker panel to two ground rods 7 feet apart.  I thought the grounding was  put at the meter but he says they don't do that anymore.  I think the old meter, before we had the new one put in

Topband: RFI - and lots of it

Thanks Steve.  I agree but didn't expect this problem.  Should have known this could be a problem since this is an older home that has been remodeled.   Regardless of the outcome with the power company I've been studying Jims writings on grounding and bonding and finding things that don't look

Re: Topband: Re. RFI - lots of it

Rain on the way so will know for sure what conditions are best.  Hopefully not the same as Tim or Kriss since this is big Lake effect snow country although you'd think snow would melt at an arcing area.  We are expecting 60mph winds tomorrow and rain.    Regardless, power company is sending

Re: Topband: RFI - lots of it

Thanks Tom.  I think I have it narrowed down with a portable.  The line going to our home is spliced to the main line along with another line going to a building across the highway. At that spot there is a ball of wires with some kind of what appears to be a metal fixture (clamp etc.).  Just

Topband: Re. RFI - lots of it

Noise has decreased today.  We have had off and on showers up to about 24 hours ago and today clear and dry, barometer up.  Evidently wetness increases the noise.  I checked nearby poles etc. and nothing concentrated near the poles.   Loudest I get is along and beneath a junction where lines

Re: Topband: RFI- lots of it

Thanks Cecil,Yes during daylight hours also. _ Topband Reflector Archives - http://www.contesting.com/_topband

Topband: RFI - Lots of it

Greetings,Last Fall we moved into a new location.  This Summer I spent a lot of time and effort putting up an Inverted L and radial system.  Now after tuning, etc. completed I have what appears to be power line noise, source unknown at this time.  I threw the main in our home and noise still

Re: Topband: topband RFI and lots of it

Thanks to all.  Yes, eliminated everything in the home and noise continues during the day.  Evidently I've been lucky over the years.  Prior to retirement we counted 5 different homes around the country since I was licensed and this is the first with rfi problems in the area.  One location was

Topband: CW Touch Key

Since everyone seems to be on board I thought I'd ask a question about one part of Ham Radio we all love-keys.  Has anyone tried or been using one of these touch keys (no moving parts) etc..  I have various types of keys but the hands don't work like they did at one time, especially in the

Re: Topband: Fwd: ARRL Board meets next week

Here in the Virgin Islands I have built and functional SO2R  station (NP2P) which provides for the operator (N2TTA) to operate from  his apartment in NYC. Not sure I understand this correctly.  Like the majority  of amateurs I haven't gotten into remote operation at this point.  Does the op in

Topband: [SUSPECTED SPAM] Re: Aurora

To much noise on 160 with storm but 6M A is hopping.Jim/k2hn _ Topband Reflector Archives - http://www.contesting.com/_topband

Topband: G5RV Conversion Keith

As it sits now I can tune on 160 but performance not as good as my Inv. L and beverage which I had prior to moving to this new QTH.  My other option is to put up another Inv. L. etc. and leave the G5 as is for other bands.  Just not enough low band   antennas and to little time while trying to

Topband: Common Mode Chokes Etc.

http://audiosystemsgroup.com/RFI-Ham.pdf Nice writeup! Jim/k2hn _ Topband Reflector Archives - http://www.contesting.com/_topband

Topband: 160M Vertical

Hello all, Plan on working at getting back on 160 after a few years of being off the air.  I last used an Inv.L and beverage.  A meager configuration but served me well.  I've been looking for a decent substitute for the inv.L since the nice tall tree I used has been cut down.  Has anyone tried