: Thursday, September 04, 2008 12:54 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: ge uhf high power
Also as Nate said, GE did not make a high power solid state amp. The
Mastr II high power stations that I referred to use a normal Mastr II
solid state PA to drive a tube
Fred Seamans wrote:
To All: GE *Did* make a solid state 200 watt UHF Transmitter. They used
a 100 watt PA driver to two 100 watt PA’s less the 40 watt driver board
and then recombined the two 100 watt to get 200 watts out.
They sure are not efficient! I agree it would be better to use a
In fact, they DID make high power non-tube amps. They used the standard
amps, divided the drive, then combined the output of each amp to get the
higher power.
Joe M.
Joe Burkleo wrote:
Also as Nate said, GE did not make a high power solid state amp. The
Mastr II high power stations that I
Fred Seamans wrote:
To All: GE *Did* make a solid state 200 watt UHF Transmitter.
Thanks Fred,
I was hoping that you or Jeff DePolo would jump in there soon and
straighten these guys out.
BTW: I have one of the stations that Fred mentioned at one of my
sites. It belongs to Jeff
Kevin Custer wrote:
I was hoping that you or Jeff DePolo would jump in there soon and
straighten these guys out.
Yeah yeah yeah... I know, I know. Sheesh.
BTW: I have one of the stations that Fred mentioned at one of my
sites. It belongs to Jeff DePolo.
It will run 200+ watts all day
The math isn't that hard. 200W (53.01 dBm) is about 7.6 dB over 35W
(45.44 dBm), so the RX would have to be about 7.6 dB better than 0.15 uV
(-123.5 dBm), or about -131 dBm which is 0.06 uV.
The antenna gains and losses cancel each other out since they apply to
both TX and RX.
Joe M.
Nate
Zimmerman
Amateur Radio Call N3XCC
474 Barnett Rd
Boswell, PA 15531
- Original Message -
From: MCH [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, September 04, 2008 4:38 PM
Subject: Re: [Repeater-Builder] Re: GE uhf high power
The math isn't that hard. 200W (53.01 dBm
Nate Duehr wrote:
KC wrote:
BTW: I have one of the stations that Fred mentioned at one of my
sites. It belongs to Jeff DePolo.
It will run 200+ watts all day and night, and with a good MASTR II
receiver (hand selected) with a Chip Angle preamp, it takes all of the
200 watts to keep up with
Scott Zimmerman wrote:
Although what Joe says is true, the system is balanced more so than the math
would indicate. This is due to most users ears requiring more than .15uV
sensitivity to pick out a weak signal. realize that the SINADs of BOTH the
repeater and the mobile rig would be
...and that's on UHF. Let's talk low-band!
Kevin, thanks for the thoughtful math.
73,
Paul, AE4KR
- Original Message -
From: Kevin Custer
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, September 04, 2008 4:08 PM
Subject: Re: [Repeater-Builder] Re: GE uhf high power
Subject: [Repeater-Builder] Re: ge uhf high power
Also as Nate said, GE did not make a high power solid state amp. The
Mastr II high power stations that I referred to use a normal Mastr II
solid state PA to drive a tube amplifier to acheive the 225-250 Watts
on UHF or 375 Watts on VHF
You might try contacting Larry K7LJ. He posts on here occasionally and
I know he had a couple of these the last time I talked to him, but
that was a couple months ago.
They are more like 350 Watts.
Joe
--- In Repeater-Builder@yahoogroups.com, kb4ptj [EMAIL PROTECTED] wrote:
hi i am looking
oops, UHF are 225-250 Watts, it is the VHF that are 350 Watts.
Joe
--- In Repeater-Builder@yahoogroups.com, Joe Burkleo
[EMAIL PROTECTED] wrote:
You might try contacting Larry K7LJ. He posts on here occasionally and
I know he had a couple of these the last time I talked to him, but
that was
Also as Nate said, GE did not make a high power solid state amp. The
Mastr II high power stations that I referred to use a normal Mastr II
solid state PA to drive a tube amplifier to acheive the 225-250 Watts
on UHF or 375 Watts on VHF.
If you are not familiar with high power tube transmitters
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