radio

I need to know why an FM broadcast can't travel too far (from one side of the earth to other) like an AM broadcast that could travel thousands of miles after getting reflected from the ionosphere. Why can't FM signals be sent to the ionosphere for high range broadcast?

I need to know whether the radio receivers that are highly sensitive, like having sensitivity less than 0.0224 micro volts for AM reception, encounter less fading than the others with less sensitivity? Which specification of a radio receiver is responsible for mitigating fading?

I have used my small loop antenna (which has a main loop and a coupling loop that can be tuned using a variable capacitor) with an AM radio receiver to receive MW broadcasts. However, the small loop antenna which was made by me was not working properly but when I connected a ferrite rod loop...

my canada friends send me a number AAH56UCN9WB1AN, he said this could help me, but i don't know how to buy this with just a few numbers. Please help me!

I need to know which antenna among the monopole, dipole, and discone is best for HF reception?

Hello everyone hope your summer is going well mine is hot!!. I have some questions that i want to ask just so i can maybe understand some things better i am a complete newbie to all of this so please understand, But i'm using SDRTrunk to listen to my local police and EMS the only control...

May i ask how is the XHDATA brand for shortwave radio, is that good for quality, any reviews for this brand?

I need to know which type of antenna is best for scanning 3 MHz to 3 GHz signals using a RTL2832U SDR? What is the difference between using a telescopic and a discone antenna? Which is better?

I plan to use the TK-5710-K for streaming, but I'm seeking guidance on connecting a 3.5mm male cable to the radio. Based on my research, it appears that utilizing the 9 Pin ACC is the appropriate method. The connection process is as follows: Connect the Tip (left audio) to either ES1 or ES2...

Is there anybody out there that knows how to reprogram MCS 2000 Motorola Radios? A few friends and I just got a handful of these radios and we would like to program them to a different frequency. I have the RIB cables, The CPS software was given to me by the same guy that programed the radios...

Soon cruising on the Freedom of the seas , has anyone been able to hear and radio chatter , if so what frequencies? Thanks ,

Hi everyone. What do you think about Thales Synaps ? Is it a good decision? They've been promoting it since 2016, I mean. No contracts, no supplies? Tell me something about this and your karma will bloom like a flower bed in spring. :)

does anybody have a good aftermarket rubber duck for the Icom IC-T81a all it needs to be 6m/2m/440 i dont need it to be a quad band.. just tri-band

Hi all. I found a large bunch of Harris prs-152 devices on eBay for the ridiculous price of $300. Is it a joke for Harris to sell a military radio for that price? prc 152 radio for sale | eBay

Hello, first time ever posting and I was hoping for some help from people who have been doing this longer than I have! Basically I'm just getting into radios and I have a Baofang uv-9r Pro and 2 SANZUCO Walkie Talkies Two-Way Radio. I'm trying to get them to work together but for some reason I...

I'm restoring Biocom Paramedic Radios for donation to various EMS Museums. I will purchase or accept donated equipment, in working or non-working condition. I'm looking for any Biocom equipment, including: Model 3502 Radio Model 3550 Radio Model 3552 Charger Model 5000 Console Anything else...

I've been trying to find the post on batlabs for the breakdown of what each flashcode option does but can't seem to find it. Does anyone know what the Q182 Enhanced Radio Control Protocol does? Is this for trunked systems?

For Sale - Quantity (2) - President Randy II – Handheld CB radios with free options. Full feature AM/FM 40 Channel CB hand-held radio with home AC charger and antenna. Compact size, rugged design for travel, biking, camping, or home use; ideal for ATV/cart where space is a premium. TNC antenna...

Hello Hams and Radio Enthusiasts, So, upon my ongoing research regarding Underground Buried Earth Antennas (UNDERGROUND BURIED EARTH ANTENNAS & https://forums.qrz.com/index.php?threads/underground-buried-earth-antennas.856927/), I have received many conflicting responses. But, as with so many...

I'm having trouble with field programming my dhp, everything was going smooth until today, now when I program a new channel or change anything on an existing channel, it disappears off my channel list, I can find it in the programming mode but not in the regular talk mode, anyone else have this...