Re: ARLA/CLUSTER: Transceptor chines de HF KN-920 (até 20W)

[pedro almeida]

Pedro CT7AHV,
se fizeres uma pesquisa pela net encontras sempre a mesma referencia
"The radio is targeted to QRP operators, as the maximum output of 10 Watts
(can be configured up to 20 Watts)."
Ou seja teem outro mercado em vista.



*Pedro Almeida     CT5JZX*
* NRA: PN063*


2013/11/6 <pedro_transistor  sapo.pt>

>  Os chineses fabricam montes de transístores de potência para RF e não os
> sabem aplicar nos próprios rádios?
> Não fazer TX em AM tolera-se, agora só 10W de emissão? Nem que custe só
> 100?...
>
> 73 de CT7AHV
>
>
> Quoting pmafer <pmafer  gmail.com>:
>
> Não tem tx em AM, portanto não interessa...
>
>
> On Wed, Nov 6, 2013 at 1:37 PM, João Costa > CT1FBF <ct1fbf  gmail.com>wrote:
>
>>   KN-920 [image: A picture of KN-920] SPECIFICATIONS  *GENERAL*  *Type:* Amateur
>> HF transceiver  *Frequency range:* *TX: 10-80 m + WARC*
>> 3.500-3.999 MHz
>> 7.000-7.300 MHz
>> 10.100-10.150 MHz
>> 14.000-14.350 MHz
>> 18.068-18.168 MHz
>> 21.000-21.450 MHz
>> 24.890-24.990 MHz
>> 28.000-29.700 MHz
>> *RX: 0.03-30 MHz*  *Tuning steps:* ? KHz  *Mode:* TX: FM/SSB/CW
>> RX: AM/FM/SSB/CW  *Memory channels:* 100 regular  *Power supply:* 13.8
>> VDC  *Current drain/power consumption:* RX: 700 mA
>> TX: Max 4 A  *Antenna impedance/connector:* 50 ohms / SO-239  *Dimensions
>> (W*H*D):* 230*90*230 mm  *Weight:* 3.5 Kg  *Other features:* SWR-meter.
>> USB conector. Built-in keyer and ATU            *RECEIVER SECTION*  *Receiver
>> system:* *Double conversion superheterodyne (AM/SSB/CW)*
>> 1st IF: 45 MHz
>> 2nd IF: 12 MHz
>> *Triple conversion superheterodyne (FM)*
>> 1st IF: 45 MHz
>> 2nd IF: 12 MHz
>> 3rd IF: 455 KHz  *Sensitivity:* AM: 1 uV (10 dB S/N)
>> FM: 0.2 uV (12 dB SINAD)
>> SSB/CW: 0.2 uV (10 dB S/N)  *Selectivity:* AM: 6 KHz (-6 dB)
>> SSB: 2.4 KHz (-6 dB), 3.6 KHz (-40 dB)  *Image rejection:* 70 dB  *AF
>> output power/speaker:* ? W at ?% distortion / ? ohms  *External speaker
>> connector:*              *TRANSMITTER SECTION*  *RF output power:* 1-10
>> W (Can be modified to max 20 W)  *Modulation system:*    *Max FM
>> deviation:* ±? KHz  *Spurious emissions:* Less than -? dB  *Microphone
>> connector/impedance:* 8-pin / ? ohms            *MISCELLANEOUS*
>> *Manufactured:* China, 2013-201x  *Additional info:*    *Related
>> documents:*    *Modifications:*    *Options/Accessories:*   - -    [image:
>> A rear picture of KN-920]
>> _______________________________________________
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>>
>
>
>
>
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