I was recently asked why the CQ Contests use 100W as the limit for low power and the ARRL Contests use 150W. I had not really thought about this much and wonder if anyone can explain how the limits w
Randy, the standardization on first the dual 807 tube then later the dual 6186 tune as typical low power output stages in high quality amateur radio transmitters led to a de-facto standard of a 150w
I am only guessing at one time it was 150 watts input, when input power was the measure outlined in FCC rules, and rigs that had a pair of 6146 finals ran about 150 watts input. If the number was no
Hi Randy, Sweepstakes' 150 watt (input power) low power category goes back many years, long before I was licensed in 1959. Field Day was the same. The ARRL DX contest probably adopted the same tradit
I guess I ?go backą even further than Frank. I was licensed in 1952. In 1952 power was measured, not by output, but rather as the product of the HV on the final power tube and the current drawn by th
According to the ARRL November Sweepstakes announcement in November 1975 QST (P51-52), the class A limit (low power) was 200 watts input power. This makes sense - my SB401/303 combo was rated at 180
I think I remember that a number years ago ARRL or NCJ changed the NAQP from 150W to 100W. As I recall, one of the reasons given was that then stations would not have to use amps to get up to the 150
Actually if you run so2r you can also add the db loss of your filters (as they go between the rig and Amp). Adding this on to the 150/100 watt gain and you start to make a significant difference. Aft
Today, it makes sense to make everyone honest by calling LOW power 200 pots of wire, ooooh watts of power. The 100 w was due to transceivers of the day the rule adopted. Time has marched on to 200 w.
On 09/16/2014 12:20 PM, John Unger wrote: I think I remember that a number years ago ARRL or NCJ changed the NAQP from 150W to 100W. As I recall, one of the reasons given was that then stations would
I think there were quite a few of us working QRP back in the day, not because we even knew what QRP meant, but most Novices ran little low power rigs as that was what was available to us. If you were
I would dare say that there are many more 100W Radios than 150W radios being manufactured these days. Also it's easier to dial a 150W radio back to 100W than vice-versa. The rule ought to realistical
That is a strange rule. It is illegal to run an amp to get to 100 watts, but it not illegal to run a radio that puts out 400 watts in the NAQP. If they outlaw amps, why not outlaw radios that put out
Speaking of ARRL November Sweepstakes specifically, the chronology of the Low Category/Class goes like this: 1930 - In the beginning there were no power classes. 1934 - For the fifth running of Sweep
With that comment in find....here is what I found. Contests that use 100 watts as the "low power" limit. Not a comprehensive list! All Asia ARRL FIELD DAY ! CQWW HA NA SPRINT NAQP OCEANIA OK/OM PACC
Poorly worded, I'd say. It is illegal to run an amp to get to 100 watts Which also prevents use of a KX3 with KXPA100, or even a K2 with its amp. 73, Jim K9YC ________________________________________
As someone who has spent the past 10 years competitively low power contesting at 100 and 150W depending on the contest, I can tell you that it does make a difference. I have routinely experimented in
Why does anyone care how you get 100W? 73, de Hans, K0HB "Just a Boy and his Radio" 73 _______________________________________________ CQ-Contest mailing list CQ-Contest@contesting.com http://lists.c
K0HB asks "Why does anyone care how you get 100W?" I was wondering the same thing, even way back when I first saw the rule against dialing the amplifier back to LP level. My guess: Hans and I are so
Current NAQP rules state specifically "no external amplifiers". I would agree this ought to go away. 73 jeff wk6i -- Jeff Stai ~ wk6i.jeff@gmail.com Twisted Oak Winery ~ http://www.twistedoak.com/ Fa