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October 15, 2019, 05:56:23 PM *
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 on: Today at 09:55:56 AM 
Started by W1RC - Last post by Todd, KA1KAQ
Yes, 23 was the 'offical' dinner count. Pretty good considering the wx and the fact that Dale and the milsurplus crew chose to have dinner at the site.

Did see Al pedal by but was talking with someone and didn't get to say hello. AM was well-represented, saw quite a few of the usual suspects along with a few new faces like W1GTX who runs a T-368.

Aside from the 12 hour drive up it was an enjoyable visit. Noticed a tiny amount of mist when we left the hotel Saturday morning but the ground was dry and we saw no rain all weekend. Those who once again stayed home because it might rain missed out on some great bargains. Like a nice HQ-215 with three filters for......$50? True story, I know the buyer. Saw a couple nice HQ-120s under $100 as well. And much, much more.

I bought nothing but food and gas. Now, I did pick up a couple prearranged items purchased prior: two more Meissner 150B transmitters. Originally started with the cabinet-less one that Paul/AA1SU offered in the Classifieds as a parts donor to finish up the one I got from Shane/N1DMX a couple years back.

But one apparently wasn't enough. Found another in later September, complete and unhacked internally, for a price I couldn't pass up. So at some point in the near future I'll be offering one for sale at a very good price. You'll just have to pick it up (oof).

In an ironic twist of fate, Tim had an item for the AM Pony Express to haul back south for a 3-Lander in MD: a Meissner 150B exciter. What are the odds of that?

Hauled home my RCA SC-88 too, which was on loan to a fellow ham in 1 Land. The Interceptor handled the 1200+ lb load without so much as a grunt. Stopped at W3JN's place overnight on the way home, the perfect way to cap off the trip.

Good ol' fashioned FUN.

 on: Today at 09:35:05 AM 
Started by steve_qix - Last post by Todd, KA1KAQ
Steve got a nice transmitter. Would love to have that with the old rigs here.

At 125 lbs it's just over 1/3rd of a 150B which weighs in at 305 pounds. Add in the external exciter and you're bumping 350.

Interesting in that it's clearly a pre-war design but was drafted into WWII service without a BC- number. The nomenclature tags simply say Meissner 150B. 

 on: Today at 07:05:07 AM 
Started by WA2SQQ - Last post by WA2SQQ
Mine is receive only ...

I'm using the PIXEL loop which is now sold by DX Engineering. It's about 40" in diameter. Not cheap, but in my case it's a night and day difference. Noise mitigation is the real issue. I live in Northern NJ with the majority of the metro NYC AM radio transmitters located about 5 air miles away. WABC is a 50 KW station and its ~ 2miles away. The Flex's (6500) receiver is very tight so I'm not hearing any images, but they all contribute to increasing the noise floor. My average noise level last night was S6-S7. In the winter it drops about 1 S unit - all this on my sloper. When I use the PIXEL, my noise floor drops by ~ 3 S-units. When I switch over, it literally opens up a whole new group of stations. It's quite directional during the daytime, somewhat less at night with skywave propagation. It also performs very good down to about 75 khz, and remains usable down to 30 khz. Above 40m,  - meh ...

I'm also experimenting with this antenna, a "LOG" (loop on ground).

Extremely easy to make and it is somewhat bi-directional. The psychological aspect which took some getting use to is when you see the S meter drop. Weaker signals (on the Smeter), - definitely - but most of the decrease is the noise. WAS on 160m was something I never imagined being able to do, especially due to my location and limited space. Granted, FT8 isn't the same as having a QSO but it still shows that it can be done! Last season I worked K9FD in Hawaii. I though that was the ultimate DX I could accomplish. Several weeks later at about 1 AM, I worked an "E51" from Cook Island, a few thousand miles further! This one was done with 300W using FT8, all the others about 80W.

Thanks for the response. I have played around with a small loop antenna calculator.  But the calculated efficiencies were so low I never attempted to use one.

My (horizontal) 500' loop is relatively close to the ground, with a height ranging from 12' to maybe 24' or 20.   I do get a lot of noise though, particularly on the lower frequencies.   

 on: Today at 05:05:24 AM 
Started by WZ1M - Last post by WZ1M
Three knife switches. The small one is cracked.
Asking $30.00 plus shipping for all. Prefer pick up in Orono, Maine.
Shipping is extra.

 on: Today at 05:02:41 AM 
Started by WZ1M - Last post by WZ1M
Up for sale is the following ham radio related stuff.
Three cabinets, $30.00/each or $70.00 takes all three. Pick up only, Orono, Maine
I am located at 478 Forest Ave, Orono, Maine
Will ship smaller items so shipping will be extra.

 on: Today at 04:59:54 AM 
Started by WZ1M - Last post by WZ1M
Up for sale is the following ham radio related stuff.
Misc glass tube sockets. Make an offer, one or all of them.
AC volt with frequency meter, works great...$20.00
I am located at 478 Forest Ave, Orono, Maine
Will ship smaller items so shipping will be extra.

 on: Yesterday at 11:39:36 PM 
Started by WA2SQQ - Last post by Steve - K4HX
Good receiving antennas will almost always "hear" better than transmit antennas like verticals, slopers, dipoles, etc. I noticed 3-10 dB improvement in the received SNR when switching from my dipole to a K9AY or the phased-Beverages I used to have up. Quite astounding once you hear it. Critical for working DX but can improve things greatly for more local rag chewing too.

The Beverages also drastically reduce thunderstorm noise emanating from the South and West of my location. Take a listen to the audio clip at the link below. It was recorded on 80-meters in September 2010 while switching between a dipole and the Beverages. It almost sounds like the thunderstorm static is switched off when listening on the Beverages. Keep in mind that OK2RZ had a very strong signal, something like 5/9+10-15. Still the late summer static on the dipole is quite noticeable. On the Beverages it is all but gone!


More info at the links.




 on: Yesterday at 11:15:46 PM 
Started by WA7DUY - Last post by K4RT

I hadn't heard of the Nouveau 75 until seeing your post here. That's an interesting AM transceiver kit and it seems to be reasonably priced. http://www.4sqrp.com/n-75.php I wonder if the RF final is capable of higher output in that circuit. Maybe our Class E folks know more. I'll have to read up on Class G modulation.

Brad K4RT

 on: Yesterday at 10:21:23 PM 
Started by N4LTA - Last post by vk3alk
Hi Pat...

Everything seems to be coming along well.....

Is your TX going to be in another box ?
Have you decided on what materials you will use in your PWM LPF yet....?.
Have tried 3 different types and can detail those if you like....
Might be best to build the transmitter first and see what load it places on the modulator and then design the Filter for whatever it is like 6 ohms / 12 ohms etc:
With the TX are you going to try Nigels ..... has he sent you any details at all as he seems to be quiet at the moment....
Hope all is OK with him.......

Are currently building another 160M TX .... all the modules are built and tested and are building the case just like you so might upload some photos for interest sake....

Sounds like your regulator is just a regulator  Undecided
Can send you the circuit for the one I use which has variable output voltage and over current with SWR rollback which is a good safe guard really....
You could build that afterwards and install at a later date perhaps...

Thats enough...


 on: Yesterday at 10:16:49 PM 
Started by W1RC - Last post by Steve - K4HX
The count at the AM Dinner was 23.

Sorry I didn't see you Al. Todd mentioned that you were on a trike.  Smiley

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