Posted 20 hours ago

SIHUADON D808 Portable Radio Transistor AM FM SW LW SSB Air Band Multiband Radio Loudspeaker Alarm Clock Sleep Timer Black

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Soft mute. The dreaded soft mute is present in AM and SSB mode to some degree, but I do not feel it is excessive. Like most radio hobbyists I’m not a fan of soft muting and prefer uninterrupted tuning with no sign of “chuffing” or lowering of noise or audio. The amount of soft mute on this radio seems the same as the Eton Executive Satellit in my opinion. The D-808 also has fine tuning capability. This is not the same as the Tecsuns which actually enable you to re-calibrate, and with adjustment that remains set for both USB and LSB. On the D-808 you fine tune to zero beat, but have to repeat the correction for LSB and USB on the frequency you’re on – it’s a bit more twiddly, but on my 808 the fine tuning is nonetheless very smooth.

What about single sideband? These four videos show reception in AM mode only, but rest assured the D-808 is very capable on the SSB modes of LSB and USB! A separate fine tuning rotary wheel on the right side of the radio’s case offers adjustment in 10 Hertz increments. The effect feels very similar to tuning CountyComm’s GP-5/SSB “walkie-talkie” style receiver. The plus or minus (+/-) offset is displayed in multiples of 10 Hz steps as “-1”, “-2”, “-3”, and so on.batteries have a very high energy density at a very low weight, and in the D-808 they meet a radio with a very moderate power consumption. As a result, the provided 2,000mAh battery powered the radio continuously for remarkable 32 hours, 14 of them with the display light on! For comparison, the heavier (and more expensive) 2,500mAh Ni-MH batteries in my PL-660 last for 24 hours only.

The 808 was and still is compared to the CCrane Skywave SSB, a much smaller and compact receiver. Unfortunately, in my experience both suffer from soft muting. When I really get to dreaming, I think of XHDATA or some other maker designing a portable like the 808 – why not call it the 1000 Super DSP – that actually has continuously adjustable bandwidth control. This will never happen. The PL-660 is poor on LW and Deaf on MW great on SW and has great Sync Detection I wish other radios had, the wider filters can be an issue with SW DX’ing but changing to LSB/USB can make all the difference.Looking to the publicly available pictures, extensive changes were made in the circuit diagram and PCB layout of the Receiver board. FM stereo / MW / LW/ SW SSB and Air Band radio with high sensitivity, good selectivity, and user-operation friendly Even after all of these years, my Sony 7600GR continues to hang tough and when connected to an external antenna, was performing almost as well as the X2 despite what should have been a run away in terms of all the benefits that come with a DSP based receiver.

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