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18282 k4pf@...
k2orsfan Offline Send Email
Nov 1, 2010
3:46 pm
"James L. Fisher" <jlfisher@...> wrote ... [20% power out]in SSB ONLY .. I get full power out in CW with Function switch in TRCV position. Hi, What test...
18283 Mike McCarty
Mike.McCarty@... Send Email
Nov 1, 2010
4:52 pm
... RF current x RF voltage = RF power (so long as they are in phase) Mike -- p="p=%c%s%c;main(){printf(p,34,p,34);}";main(){printf(p,34,p,34);} Oppose...
18284 Bob Macklin
k5myj Offline Send Email
Nov 1, 2010
5:00 pm
I find it easiest to just use the voltage in my Heath Cantenna and use E**2/R. On a non-reactive load the RF E and the RF I are in phase. Or as good as you can...
18285 Mike McCarty
Mike.McCarty@... Send Email
Nov 1, 2010
5:59 pm
... IIRC, the Cantenna has an output port specifically for that. Something like a 100K resistor in series with a 1K ohm resistor and a rectifier/filter cap...
18286 Bob Macklin
k5myj Offline Send Email
Nov 1, 2010
6:21 pm
The RF detector in the Heath Cantenna is the same as in the RF probe for the Heath VTVMs. If you connect the RF sampler output to the input of a Heath VTVM it...
18287 daleputnam@...
daleputnam Offline Send Email
Nov 1, 2010
8:41 pm
And if the amp is 50 percent effencient divide IxE by 2 and you have the expected output. Sent from my Verizon Wireless BlackBerry ... From: Mike McCarty...
18288 k4pf@...
k2orsfan Offline Send Email
Nov 2, 2010
12:41 am
Bob Macklin <macklinbob@...> wrote ... Hi, The Cantenna's rectified voltage output with respect to rf power varies with frequency, since the built-in...
18289 Mike McCarty
Mike.McCarty@... Send Email
Nov 2, 2010
1:20 am
... It could easily be swamped, however. ... Unfortunately, not. The echo strips attachments. Thanks for trying, though. Mike -- ...
18290 mike39302000 Offline Send Email Nov 2, 2010
2:06 am
Plate current x Plate Voltage x effiency If it is a grounded grid the driving power adds to the above....
18291 Bob Macklin
k5myj Offline Send Email
Nov 2, 2010
2:18 am
How do you know what the effiency is unless you can measure the output power and compare it to the input power? Bob Macklin K5MYJ Seattle, Wa. "Real Radios...
18292 Mike McCarty
Mike.McCarty@... Send Email
Nov 2, 2010
2:33 am
... One doesn't. That's how efficiency is ascertained. One can, of course, do some modelling and get a reasonable estimate. Mike -- ...
18293 Bob Macklin
k5myj Offline Send Email
Nov 2, 2010
2:52 am
In theory a DX-60 with 90W input power may be capable of 60W RF out. But they are more often closer to 50W. Bob Macklin K5MYJ Seattle, Wa. "Real Radios Glow In...
18294 Ron Pollack
gxnb Offline Send Email
Nov 2, 2010
3:13 am
"Clarificate?" ... From: k4pf@... <k4pf@...> Subject: Re: [Heathkit:Yahoo] Re: does someone remember which was the formula t o calculate RF power??? ...
18295 Mike McCarty
Mike.McCarty@... Send Email
Nov 2, 2010
3:19 am
... English may not be his first language. ... -- p="p=%c%s%c;main(){printf(p,34,p,34);}";main(){printf(p,34,p,34);} Oppose globalization and One World...
18296 Neil Morrison
neils_morr Offline Send Email
Nov 2, 2010
5:53 am
Maybe his English teacher was Sarah Palin? Neil From: Mike McCarty English may not be his first language. ... [Non-text portions of this message have been...
18297 barcand@...
greenmoldydo... Offline Send Email
Nov 2, 2010
1:10 pm
That sounds more like a "Bushism"!! Bernie in ND...
18298 Mike McCarty
Mike.McCarty@... Send Email
Nov 2, 2010
2:22 pm
... Can we please drop the Politics? ... -- p="p=%c%s%c;main(){printf(p,34,p,34);}";main(){printf(p,34,p,34);} Oppose globalization and One World Governments...
18299 Milton Valerio
oligo_cr Offline Send Email
Nov 2, 2010
5:09 pm
Good day to all, and thanks again for your kindly help. effectively my first language is spanish not english and no Sarah Palin was not my english teacher but...
18300 Mike McCarty
Mike.McCarty@... Send Email
Nov 2, 2010
5:28 pm
... No te preocupes por la burleria de payasos. Estamos de acuerdo en Sarah Palin, es muy guapa e inteligente ademas. Mike -- ...
18301 ragnar otterstad
la5he Offline Send Email
Nov 2, 2010
6:26 pm
Muy bien, estimado collega Milton.   I suggest you contact URE in Madrid and get some litterature in espagnol.     adios   Ragnar  LA5HE en Noruega UBI...
18302 mchenryproj Offline Send Email Nov 3, 2010
5:33 am
Hello learned sages of all things Heathkit. New here and new to boat anchors but, I acquired an old HW-10 Shawnee 6m AM radio that isn't in too bad a shape...
18303 mchenryproj Offline Send Email Nov 3, 2010
5:39 am
Interesting. I hear 6am is out there on 50.400 and I just got an old Shawnee. Being in Columbus, Ohio, let me know if the 6am group takes off. Once I find a...
18304 charles
trapper_hawes Online Now Send Email
Nov 3, 2010
6:32 pm
I will post on here about them. You should be able to hear me once I get my 6m Beam up and 100 watts plus. From: mchenryproj Sent: Wednesday, November 03, 2010...
18305 Mr. Sean McHenry
mchenryproj Offline Send Email
Nov 3, 2010
6:46 pm
Sounds fun on the 6m AM group an your projects.  I inherited the Shawnee at a hamfest because someone abandon it and the guys I went with are all older and...
18306 BOB
hoopmonk... Offline Send Email
Nov 3, 2010
9:50 pm
Ed and the group, The voltage at the center tap of the modulation transformer (point J) with both 1625's removed measures - 62 volts DC and 0 volts AC. On pin...
18307 charles
trapper_hawes Online Now Send Email
Nov 3, 2010
11:24 pm
I have HB 6m transmitter, Johnson 6N2 , HW29 and planning to build a station for 200 watts plus for CW and AM From: Mr. Sean McHenry Sent: Wednesday, November...
18308 k4pf@...
k2orsfan Offline Send Email
Nov 4, 2010
2:36 am
... The voltage at the center tap of the modulation transformer (point J) with both 1625's removed measures - 62 volts DC and 0 volts AC. On pin 2 of the 6AL5...
18309 k1nun@...
k1nun Offline Send Email
Nov 4, 2010
12:18 pm
Hi A friend has a DX-100 for sale, but must be picked up near Boston. Last night on our local swap net, he offered it for about $75 (or BRO). Physical...
18310 Steve
boxoboom Offline Send Email
Nov 4, 2010
3:41 pm
http://www.mbardelli.com/to.php [Non-text portions of this message have been removed]...
18311 k4pf@...
k2orsfan Offline Send Email
Nov 4, 2010
6:16 pm
... My tube tester won't check 1625 tubes, the heaters are OK but thats all I am sure of. Because the schematic is not very legible and none of the mod's have...
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