Questions tagged [transceiver]

Use this tag for general questions relating to transceivers.

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4
votes
1answer
119 views

How can I establish a wireless link between my PC and TenTec 506 / chipKIT UNO32 using USB port?

I have a TenTec 506 HF transceiver that uses a Digilent chipKIT UNO32 microcontroller. My PC running Teraterm (serial connection) or the MPIDE monitor is connected to the microcontroller's mini B USB ...
8
votes
1answer
499 views

Antenna tuning while receiving

I've built AA5TB's antenna coupler for a 5W 20m transceiver. Tuning was kind of difficult because my transceiver has buttons for sending a dot and a dash, but no tuning mode, so I couldn't have the ...
5
votes
2answers
885 views

Adapting an antenna coupler

I've built AA5TB's antenna coupler: I left out C2 because I didn't understand why I would need it - why would I? It works fine without. Unfortunately, when I started tuning for a 5W 20m transceiver, ...
10
votes
4answers
563 views

Why are commercial SDRs so limited in operating frequency?

I spent a bit of time researching SDRs, mostly looking into the possibility of building an all-FPGA-based TRX. There are a lot of commercial ready solutions; some are cheap, some not, but they all ...
1
vote
2answers
251 views

KN-Q7A - A good place to start? [closed]

I have decent circuit knowledge and would like to get into some homebrew operating, specifically voice. Would the KN-Q7A be a good place to start? If so can I just get the parts and do the circuit ...
5
votes
1answer
358 views

Boefeng UV-5RE scanning capability

Since the factory manual is simple and basic, is it possible to use the Baofeng UV-5RE to do these things? Listen to FM radio, while scanning 2m and 70cm bands in the background (as in hiking) Set ...
2
votes
2answers
11k views

Difference between Boefeng UV-5RE Plus and UV-5

I bought a Baofeng UV-5RE Plus, which presumably is an improved version of the basic UV-5. There is lots of information online on the UV-5. Any idea where I can find out what are the differences and ...
6
votes
3answers
3k views

Is there any PC remote control software for the Baofeng UV-5RE Plus?

I saw on YouTube that some software, with another brand transceiver, can command the transceiver to scan a range of frequencies and display a running waterfall display of scanned results. Can such a ...
4
votes
2answers
2k views

What radios compare favorably with the FT-817ND? [closed]

I've been asked to specify an amateur radio for a project which is very general purpose in nature, including HF, VHF, and UHF bands. Cost and user friendliness is a concern, so I wanted to avoid ...
2
votes
3answers
3k views

Baofeng uv-82 will not transmit in channel mode?

I have 2 Boafeng UV-82 radios. I programmed the frequencies using Chirp. When I try to access the repeaters in channel mode I cannot connect. When I switch to frequency mode and turn off the duplex ...
3
votes
1answer
453 views

Can an external VFO be injected into a commercial rig?

Constraints of various kinds preclude any investment in a rig at present; so I find myself pondering the means to get back on the band piece-meal. Say I were successful in an attempt to throw ...
2
votes
1answer
387 views

What does the “USER” programmable key function do on the Yaesu FT-897D?

I was just reviewing the manual of my Yaesu FT-897D to remind myself of useful functions I might have forgotten about, and I found the programmable function keys, which can be set to any of “All Multi ...
-2
votes
1answer
121 views

multiband mimo ad-hoc wireless connections from different spectrums [closed]

I'd like to create a multiband MIMO ad-hoc wireless network. Can I turn on every GPS, WIFI and Bluetooth radio of a mobile device and synchronize data transfers at extreme speeds between a small, ...
10
votes
1answer
744 views

What does a lightning bolt symbol next to an antenna connector mean?

On the back of my Yaesu FT-897, next to each of the antenna connectors, there are lightning-bolt-ish symbols. What do these mean, and is there something I ought to be doing because of that? I have ...
3
votes
1answer
806 views

How do I select a programmed memory scan on the Yaesu FT-897D?

The Yaesu FT-897D has a so-called “Programmable Memory Scan (PMS)” feature, which allows limiting scanning to a user-defined band by creating special paired memory entries which set the upper and ...
4
votes
1answer
353 views

Is there a repository of modern Amateur Radio transceiver schematics? [closed]

I am looking for a repository (SVN ect) of modern Amateur transceiver schematics. Most of the designs you can find with a simple Google search either use tubes, or now obsolete and hard to find ...
5
votes
2answers
592 views

Is the 3-cm band serviced by any commercial main-stream ham radio transceiver?

Wikipedia writes to say The Radio Regulations of the International Telecommunication Union allow amateur radio operations in the frequency range 10.000 to 10.500 GHz, and amateur satellite ...
8
votes
2answers
468 views

How is full duplex implemented without swamping the receive circuitry?

I've seen a few references to full duplex SDR radios, and I'm wondering how can one transmit and receive at the same time without overwhelming the receiver, and without heavy filtering such as the ...
5
votes
1answer
774 views

What makes a good emergency-capable QRP rig for travel?

It's wintertime, which drives the concept of emergency preparedness here above the 45th Parallel. Am emergency-capable QRP rig is an excellent item to stuff into one's Go Bag or vacation gear, always ...
10
votes
1answer
9k views

What is a waterfall display?

High-end transceivers apparently come equipped with a water-fall display - something to do with improved spectrum visibility. This is supposed to lead to potentially higher QSO count and rate. What ...
3
votes
2answers
1k views

Which HF transceivers feature a built-in Ethernet port for remote operation? [closed]

I would like to compile a list of HF transceivers that feature an Ethernet port (RJ45) for remote internet operation. It would also be interesting to add the supported operating system(s) for remote ...
9
votes
3answers
3k views

Why do so many HF transceivers use a UHF connector?

Just looking around at various rigs online for a fiend. Lots of them look really attractive TS-480, K2, K3, FT-450D, FT-950, IC-78, FT-897 to name just a few... These rigs are mostly HF, albeit some ...
6
votes
1answer
291 views

How can I get started with a Home Brew QRP?

I want to build a simple 40 meter CW transmitter and Receiver pair. What should I do to get started into home-brew HF RF devices?
5
votes
3answers
1k views

Battery capacity vs. weight for portable transceivers

What kind of battery has the most capacity for the weight? I want to take my transceiver backpacking, so I care about weight.
13
votes
1answer
3k views

Is it a good idea to build your own radio transceiver today? [closed]

With all the advances in the field of electronics, microcontrollers, etc., is it a good option today to build my own amateur radio transceiver (or transmitter/receiver)? Why might one choose to build ...