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#1 2007-Jun-27 00:03:51

atanu
Member
From: India
Registered: 2007-Jun-26
Posts: 33

WARP RF Transmit Power

Hello,

I have couple of questions on the RF transmit power.

1. What is the maximum transmit power limit of the RF board?

2. Does it satisfy all the transmit power requirements: 100mw to 1watt as per the standard?

3. If yes, power settings is SW or HW programmable?

Thanks & Regards
Atanu

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#2 2007-Jun-27 01:08:33

murphpo
Administrator
From: Mango Communications
Registered: 2006-Jul-03
Posts: 5159

Re: WARP RF Transmit Power

The radio board uses the Sharp IRM046U7 dual-band power amplifier, which is spec'd to +18dBm output power@3% EVM in both the 2.4 and 5GHz bands.

The power amp is controlled by a single bit (it's either on or off). The RF transceiver has approx 60dB of power control range. Both gain stages are programmable in software and hardware.

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#3 2008-May-20 13:43:01

shaunee
Member
Registered: 2007-Nov-06
Posts: 24

Re: WARP RF Transmit Power

Can the RF transceiver gains be changed "on the fly", ie. while the boards are still powered on and w/o changing download bitstreams?

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#4 2008-May-20 14:40:33

murphpo
Administrator
From: Mango Communications
Registered: 2006-Jul-03
Posts: 5159

Re: WARP RF Transmit Power

The gain of the power amplifier is fixed; it's either on or off, and applies approx. 30dB gain when active.

The gains applied in the transmit path of the RF transceiver (the MAX2829) can be changed on the fly over a 60+dB range. These gains are controlled either via an external 6-bit bus or via software calls to the WarpRadio_v1_TxVGAGainControl function.

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