my kali server on a intel atom 330 does not boost tx power to 30, it remains at 20
my script to turn in mon mod all cards
Code:
 cat monitor 
ifconfig wlan0 down && ifconfig wlan1 down 
iw reg set BO
iwconfig wlan0 txpower 30 && iwconfig wlan1 txpower 30
ifconfig wlan0 up && ifconfig wlan1 up 
iwconfig wlan0 txpower 30 && iwconfig wlan1 txpower 30 
airmon-ng start wlan0 && airmon-ng start wlan1
Code:
lshw -sanitize
computer                  
    description: Desktop Computer
    product: ()
    width: 64 bits
       description: Motherboard
       product: D945GCLF2
       vendor: Intel Corporation
       physical id: 0
       version: AAE46416-101
       serial: [REMOVED]
       slot: Base Board Chassis Location
     *-cpu
          description: CPU
          product: Intel(R) Atom(TM) CPU  330   @ 1.60GHz
          vendor: Intel Corp.
          physical id: 0
          bus info: cpu@0
          version: Intel(R) Atom(TM) CPU  330   @ 1.60GHz
          slot: U1PR
          size: 1600MHz
          capacity: 4GHz
          width: 64 bits
          clock: 133MHz
          capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx x86-64 constant_tsc arch_perfmon pebs bts nopl aperfmperf pni dtes64 monitor ds_cpl tm2 ssse3 cx16 xtpr pdcm movbe lahf_lm dtherm
        *-cache:0
             description: L2 cache
             physical id: 1
             slot: Unknown
             size: 512KiB
             capacity: 512KiB
             capabilities: asynchronous internal write-back unified
        *-cache:1
             description: L1 cache
             physical id: 2
             slot: Unknown
             size: 32KiB
             capacity: 32KiB
             capabilities: asynchronous internal write-back instruction
     *-memory
          description: System Memory
          physical id: 10
          slot: System board or motherboard
          size: 2GiB
          capacity: 2GiB
        *-bank
             description: DIMM DDR2 Synchronous 533 MHz (1,9 ns)
             product: 0x32472D5544494D4D00000000000000000000
             vendor: Kingston
             physical id: 0
             serial: [REMOVED]
             slot: J1MY
             size: 2GiB
             width: 64 bits
             clock: 533MHz (1.9ns)
        *-usb:0
             description: USB controller
             product: NM10/ICH7 Family USB UHCI Controller #1
             vendor: Intel Corporation
             physical id: 1d
             bus info: pci@0000:00:1d.0
             version: 01
             width: 32 bits
             clock: 33MHz
             capabilities: uhci bus_master
             configuration: driver=uhci_hcd latency=0
             resources: irq:23 ioport:2080(size=32)
        *-usb:1
             description: USB controller
             product: NM10/ICH7 Family USB UHCI Controller #2
             vendor: Intel Corporation
             physical id: 1d.1
             bus info: pci@0000:00:1d.1
             version: 01
             width: 32 bits
             clock: 33MHz
             capabilities: uhci bus_master
             configuration: driver=uhci_hcd latency=0
             resources: irq:19 ioport:2060(size=32)
        *-usb:2
             description: USB controller
             product: NM10/ICH7 Family USB UHCI Controller #3
             vendor: Intel Corporation
             physical id: 1d.2
             bus info: pci@0000:00:1d.2
             version: 01
             width: 32 bits
             clock: 33MHz
             capabilities: uhci bus_master
             configuration: driver=uhci_hcd latency=0
             resources: irq:18 ioport:2040(size=32)
        *-usb:3
             description: USB controller
             product: NM10/ICH7 Family USB UHCI Controller #4
             vendor: Intel Corporation
             physical id: 1d.3
             bus info: pci@0000:00:1d.3
             version: 01
             width: 32 bits
             clock: 33MHz
             capabilities: uhci bus_master
             configuration: driver=uhci_hcd latency=0
             resources: irq:16 ioport:2020(size=32)
        *-usb:4
             description: USB controller
             product: NM10/ICH7 Family USB2 EHCI Controller
             vendor: Intel Corporation
             physical id: 1d.7
             bus info: pci@0000:00:1d.7
             version: 01
             width: 32 bits
             clock: 33MHz
             capabilities: pm debug ehci bus_master cap_list
             configuration: driver=ehci-pci latency=0
             resources: irq:23 memory:902c4000-902c43ff
        *-pci:3
             description: PCI bridge
             product: 82801 PCI Bridge
             vendor: Intel Corporation
             physical id: 1e
             bus info: pci@0000:00:1e.0
             version: e1
             width: 32 bits
             clock: 33MHz
             capabilities: pci subtractive_decode bus_master cap_list
        *-isa
             description: ISA bridge
             product: 82801GB/GR (ICH7 Family) LPC Interface Bridge
             vendor: Intel Corporation
             physical id: 1f
             bus info: pci@0000:00:1f.0
             version: 01
             width: 32 bits
             clock: 33MHz
             capabilities: isa bus_master cap_list
             configuration: driver=lpc_ich latency=0
             resources: irq:0
        *-ide:0
             description: IDE interface
             product: 82801G (ICH7 Family) IDE Controller
             vendor: Intel Corporation
             physical id: 1f.1
             bus info: pci@0000:00:1f.1
             version: 01
             width: 32 bits
             clock: 33MHz
             capabilities: ide bus_master
             configuration: driver=ata_piix latency=0
             resources: irq:18 ioport:1f0(size=8) ioport:3f6 ioport:170(size=8) ioport:376 ioport:20b0(size=16)
        *-ide:1
             description: IDE interface
             product: NM10/ICH7 Family SATA Controller [IDE mode]
             vendor: Intel Corporation
             physical id: 1f.2
             bus info: pci@0000:00:1f.2
             version: 01
             width: 32 bits
             clock: 66MHz
             capabilities: ide pm bus_master cap_list
             configuration: driver=ata_piix latency=0
             resources: irq:19 ioport:20c8(size=8) ioport:20ec(size=4) ioport:20c0(size=8) ioport:20e8(size=4) ioport:20a0(size=16)
        *-serial UNCLAIMED
             description: SMBus
             product: NM10/ICH7 Family SMBus Controller
             vendor: Intel Corporation
             physical id: 1f.3
             bus info: pci@0000:00:1f.3
             version: 01
             width: 32 bits
             clock: 33MHz
             configuration: latency=0
             resources: ioport:2000(size=32)
     *-scsi:0
          physical id: 1
          logical name: scsi2
          capabilities: emulated
        *-disk
             description: ATA Disk
             product: STM3500418AS
             vendor: Seagate
             physical id: 0.0.0
             bus info: scsi@2:0.0.0
             logical name: /dev/sda
             version: CC35
             serial: [REMOVED]
             size: 465GiB (500GB)
             capabilities: partitioned partitioned:dos
             configuration: ansiversion=5 sectorsize=512 signature=df55df55
           *-volume:0
                description: Windows NTFS volume
                physical id: 1
                bus info: scsi@2:0.0.0,1
                logical name: /dev/sda1
                version: 3.1
                serial: [REMOVED]
                size: 435GiB
                capacity: 435GiB
                capabilities: primary bootable ntfs initialized
                configuration: clustersize=4096 created=2009-10-22 18:01:36 filesystem=ntfs modified_by_chkdsk=true mounted_on_nt4=true resize_log_file=true state=dirty upgrade_on_mount=true
           *-volume:1
                description: Extended partition
                physical id: 2
                bus info: scsi@2:0.0.0,2
                logical name: /dev/sda2
                size: 30GiB
                capacity: 30GiB
                capabilities: primary extended partitioned partitioned:extended
              *-logicalvolume:0
                   description: Linux filesystem partition
                   physical id: 5
                   logical name: /dev/sda5
                   logical name: /
                   capacity: 28GiB
                   configuration: mount.fstype=ext4 mount.options=rw,relatime,errors=remount-ro,data=ordered state=mounted
              *-logicalvolume:1
                   description: Linux swap / Solaris partition
                   physical id: 6
                   logical name: /dev/sda6
                   capacity: 1314MiB
                   capabilities: nofs
  *-network DISABLED
       description: Ethernet interface
       physical id: 1
       logical name: wwan0
       serial: [REMOVED]
       capabilities: ethernet physical
       configuration: broadcast=yes driver=huawei_cdc_ncm driverversion=22-Aug-2005 firmware=Huawei CDC NCM device link=no multicast=yes
root@kali:~#

Code:
iw reg get
country BO:
	(2402 - 2482 @ 40), (N/A, 20)
	(5250 - 5330 @ 80), (N/A, 30), DFS
	(5735 - 5835 @ 80), (N/A, 30)
root@kali:~# iwconfig 
eth0      no wireless extensions.

wlan0mon  IEEE 802.11bg  Mode:Monitor  Frequency:2.417 GHz  Tx-Power=20 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          
wwan0     no wireless extensions.

lo        no wireless extensions.