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   Home   Help Search  
Pages: Prev 1 [2] 3 4 5 6 7 ... 10 Next
 11 
 on: Today at 01:29:44 PM 
Started by KD0PO - Last post by K7KB
I've been playing around with FT8 lately, interesting mode. With JT65 I always felt like I was watching the grass grow it was so slow and boring. But with FT8 it's still like watching the grass grow, except four times faster Cheesy I notice some people calling 5T1R on 21.074, and they are part of the 5T5TI team which lists FT8 as one of their operating modes. I'm just wondering if FT8 or other low signal operating modes will eventually replace RTTY and PSK as the primary for digital Q's?

 12 
 on: Today at 01:18:32 PM 
Started by KS4JU - Last post by K5TED
SDRUno.

 13 
 on: Today at 01:18:13 PM 
Started by KA1VF - Last post by WY4J

Because at 20wpm you hear letters, 30+ WPM you start to hear words.  It's transformational. Mark K5LXP

I agree with Mark K5LXP 100%

 14 
 on: Today at 01:15:07 PM 
Started by AA4OO - Last post by WY4J
There are many fist out there that are not fun to chat with. Once I made the mistake of telling someone who had been calling CQ for at least an hour that the was creating his own alphabet by joining all the letters in his call into one. He got pissed, I went away.

 15 
 on: Today at 01:09:59 PM 
Started by WX0V - Last post by K7JQ
Must be a fair amount of pre-order cancellations for that much of a drop.

Why would that be (cancellations)? I don't remember reading anything bad.

Nothing bad about the radio. It's just that the higher than expected/anticipated (between $3,200-$3,500) price of $3,900 caught some people off guard, and they decided to wait. Then again, maybe that had nothing to do with the sale price.

 16 
 on: Today at 01:06:52 PM 
Started by VK5EEE - Last post by WY4J
Tolerance: 4, tolerant of most fists except crammed together code. A 200 letter long word is a bit hard on the brain. Never been able to figure out how the senders never notice it and continue sending lousy cw year after year.

 17 
 on: Today at 01:00:31 PM 
Started by KD7RDZI2 - Last post by AC2EU
Grin I will keep using balanced antennas  Grin  However, if I understand right, in a portable situation might a single sloper 'longwire" lets say 66 feet long and a tuner be more efficient (in terms of less soil warm-up) from 40 to 10 meters (high feed-point impedance) than quarter wave verticals? And would the best be obtained using a end-fed half wave?  Roll Eyes

How did we get here from ground resistance?   Huh

Anyway,If you have 66 feet to put an antenna, why not put up a 40M dipole and be done with it.
I don't use it this way, for the sake of experiment, I just tried to see what was within reasonable  tuning range on the 40M dipole. With nothing but the internal tuner ( up to 3:1) I was able to tune 40,30, 15,12, and 10 meters. 17 and 20 were out of range.
Remember, with more extreme tuning, there will be less efficiency, generally speaking...

Those end feds are over rated, IMHO, plus you have high voltages and losses in the unun.

Not really sure what you have there or what you are attempting to do, but that's my two cents on the subject.

 18 
 on: Today at 12:57:50 PM 
Started by WR1R - Last post by WR1R
Thanks for the reply and as I stated when I say “ bang for the buck “doesn’t mean the cheapest I can find, I’ll gladly spend a couple of hundred on the BEST ht but it’s narrowing it down that’s the question . The yeasu rigs are great till you start adding the mic, bigger whip ,cable etc etc etc and then the price in total is crazy! I don’t have to have dual band rec but again the bang for the buck or the “ best “ is what I’m after, thanks for your input I hope more hams will chime in and share their experience with me. Enjoy your holiday and thanks again 73 Frank

 19 
 on: Today at 12:54:49 PM 
Started by KM6HFR - Last post by K9MHZ
I only buy used gear if I can collect it myself.....
Peter DL8OV
^^^^This^^^^.  Admittedly a little harder in the U.S. since the country is so much bigger, but the point is still valid.  Usually buy new otherwise. 

 20 
 on: Today at 12:50:10 PM 
Started by KM6HFR - Last post by HAMHOCK75
If you really want 500 watts PEP out, willing to consider a used tube amplifier, and plan to use it more than a few times a month, I would eliminate all the old, four sweep tube amplifiers from the 60's through the 80's like the Dentron GLA1000 series, the Amplifier Supply Company LA1000 series, the Ameritron AL84, the Swan 1200X, etc.

Most of these were advertised as 1200 watt input amplifiers with about 600 watts PEP output, but they could only do it if you pushed their socks off and the tubes would not last very long. They are really more like 300-400 watt PEP amplifiers. However, if you only need 300-400 watts PEP, they can be a real bargain ( $100-$200 ) other than for replacement tubes.

I am restoring an old Ameritron AL84 that was damaged in shipment. It is a very compact and lightweight amplifier good for giving a boost to qrp rigs driving it to 300 watts out perhaps, but not a good choice for boosting a 100 watt rig to 500 watts PEP.

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