Sprcial report for VoV on 7285 on 4/4/25

 A mysterious trumpet-like sound on 7285 VOV 1107, was audible today . There is surely a faulty transmitter, as shown in the waterfall, with a wide span of around 40 kHz max and a carrier signal of -65. The transmitter is also equipped with a near carrier buzzer base and a string fence, similar to the S Arabian transmitter used in the Yemenite program, but with strings spaced 720 Hz apart. The carrier vanished at 1129, yet the strings persist within the band. A few pictures are associated below

Listen:https://app.box.com/s/drfau6hzuaglj8362dn1z34i3f5omq2f 

(1) as show with the picture below the signal is spanned  quite wide in the fast waterfall tracing this is around 2 minutes of waterfall: suposedly higher modulations transcend into higher signal expansion as with Radio Cairo

 

 

(2)  More narrower visual span to show the nature of the multi string signal thnat expands into a high range in this part of the band : as measured once the strings are 720 HZ apart with 4 bing the main

 Another medium zoomed picture ON 7260  radio operations are using AM mode for their communication

 

And  finally a picture of higher close up showing someof the above strings with linear lines as like a ....Russian CIS channel  in idle mode!
 

REASONS FOR MOVING TO KIWI SDRs

Several serious reasons that inhibit me using standard antenna installations and radios!!  

 
(1) I can account around 12 routers in the contingency area of my mom’s  house.  One of the reasons  is the high noise in the HF bands . This is a 7-floor building in a highly congested area in the city 

(2) Previously, I used my SDRUNO with signals above -80 dBm when I was in my main room.   Very few signals are clear. My daughter, a school student, is currently occupying my room, so I have relocated to the middle room that is the sleeping room. 

(3)I cannot use the antenna system in the sleeping room. mot of the space is filled with things transferred  from other houses or complete layout redesign is necessary. The radios I use (Tecsun PL330 and PL550 ) are not compatible with any external antennas. The cable is associated with a balun in the radio's end.  

(4) Older times. I also used a loop in the past, but it is now difficult to reinstall. See also the next paragraph

(5)The laptop is now in the salon and needs a 10-meter cable extension to connect to the external antenna or loop. However, leaving the cable loosely on the floor could create a serious hazard for my 96-year-old mother, who has limited mobility and requires assistance.