XHDATA D-808 Longwave fix?

Medium & long wave receiver discussion
Post Reply
AMDXHUN
Posts: 239
Joined: 03 Nov 2018 21:25
Location: Szekesfehervar, Hungary

XHDATA D-808 Longwave fix?

Post by AMDXHUN » 08 Nov 2019 11:48

Almost deaf on LW, but very good on MW. Any suggestions to fix it?

KPC850
Posts: 137
Joined: 20 Aug 2016 15:49

Re: XHDATA D-808 Longwave fix?

Post by KPC850 » 08 Nov 2019 12:29

You could simply put a greater number of windings on its ferrite rod, so it will work properly on LW.

However you will loose a big portion of MW which will become deaf.

It is impossible for the one winding that it has on the ferrite rod to properly cover LW as well as MW (which is why it goes deaf below approx 350 kHz).

Ideally replace current ferrite rod arrangement with one with seperate LW and MW windings and a switch to switch between them when you change bands.


(These DSP radios automatically match to the ferrite rod winding inductance if it is in within range, so there is no alignment needed,)

Jean-Luc
Posts: 20
Joined: 17 Feb 2016 17:02
Location: Central France (JN06UT)

Re: XHDATA D-808 Longwave fix?

Post by Jean-Luc » 09 Nov 2019 07:35

Hi there,

An easy fix for the XHDATA deafness on longwave ;-)

https://youtu.be/WmZrhOjVfeA

73 Jean-Luc
Perseus + Wellbrook loop
RTL dongle + 3 el yagi in loft

chipbutty
Posts: 57
Joined: 02 May 2019 09:42
Location: Sheffield

Re: XHDATA D-808 Longwave fix?

Post by chipbutty » 09 Nov 2019 11:16

LW is so bad on the 808 I disabled it. MW is a different story of course.
Roberts R861, Xhdata D-808, Xhdata D-318BT, Tecsun PL-660, Tecsun R9700DX, Tecsun PL-310ET, Grundig City Boy 700, Grundig Yacht Boy 400, Philips D1835, Radiwow R-108, Realistic DX-360, Panasonic RF-3500, Sony XDR-P1DBP.

Post Reply

Return to “Receivers”