List of HF SDR Transceivers - Page 1
Forum section: electronics / rf-microwave

author: hagster
author_rank: Frequent Contributor
timestamp: April 06, 2019, 06:41:25 am
content: Im looking for options for an SDR based Transceivers for HF. It seems like there is a shortage of options. Hopefully the RTL community can help me compile a list and perhaps give me some feedback as to how well they work at HF? Are there other radios that can be modified to work well at HF?So far I have...HackRFLimeSDR USBFairwaves XTRXEttus with LFRX and LFTX daughter boards

author: in3otd
author_rank: Contributor
timestamp: April 06, 2019, 07:29:21 am
content: um, is the list herehttps://en.wikipedia.org/wiki/List_of_software-defined_radiosuseful as a starting point? The header says SDR RXs but you can sort by "TX capable" and see which ones are actually transceivers. Which kind of SDR are you interested in? In the list above there are Direct Digital Conversion (DDC) which more or less sample the entire RF bandwidth at the antenna and more conventional ones, with an analog downconversion and sampling at IF.Missing from the list is the Hermes-Litehttp://www.hermeslite.com/which I think is a good price/performance compromise for an HF SDR (DDC/DUC) for ham radio (but I'm partial here since I have a couple of them).Also missing are RTX based on the Red Pitayahttps://www.redpitaya.com/181/STEMlab,https://charly25-sdr.github.io/as a core of an SDR transceiver; and surely a few more.

author: Kalvin
author_rank: Super Contributor
timestamp: April 06, 2019, 08:08:09 am
content: UHSDRhttps://github.com/df8oe/UHSDR/wikiand its derivates / clones.

author: hagster
author_rank: Frequent Contributor
timestamp: April 06, 2019, 09:19:07 am
content: Thanks for those suggestions. It will take me a while to dig through that list, but its a great starting point.Im looking for something fairly small and portable. Preferably USB powered. It needs to work with GNU radio. The direct digital models seem like the way forward as I would like to do some wideband or frequency hopping experiments. It would also be nice if it worked with some of the popular SDR apps (e.g. SDR#, SDRconsole,SDRangel etc etc).

author: Lord of nothing
author_rank: Super Contributor
timestamp: April 12, 2019, 08:40:35 am
content: https://aaronia.de/spektrumanalysator/spectran-nf-usb-niederfrequenz

author: hagster
author_rank: Frequent Contributor
timestamp: April 12, 2019, 05:53:06 pm
content: Aaronia is Rx only unfourtunatly.

author: Lord of nothing
author_rank: Super Contributor
timestamp: April 12, 2019, 05:58:51 pm
content: yes sorry!The problem with Transmitt is the need normally Linux. Sure for many people is that no a problem. The next point is you need a Amateur Radio Licence. Beside of an VHF, UHF Radio who fit inside a pocket such a system it not very stealth for transmitt hidden.Maybe the HackRF could transmit on HF?I personally would use a Traditional cheap Amateur Radio for.

author: eliocor
author_rank: Unknown
timestamp: April 12, 2019, 11:15:25 pm
content: You forgot the wonderful ELAD FDM-DUO:http://ecom.eladit.com/epages/990298944.sf/en_GB/?ObjectPath=/Shops/990298944/Products/%22ELAD%20FDM-DUO%22it can work as a standalone unit or connected to a PCBTW, it is well supported by its producer/representatives!

author: hagster
author_rank: Frequent Contributor
timestamp: April 13, 2019, 09:03:30 am
content: I forgot about ELAD. Its not clear from the specs. Is is compatable with GNUradio? Whats the staring bandwidth?

author: eliocor
author_rank: Unknown
timestamp: April 13, 2019, 01:43:24 pm
content: Sorry, but I do not understand... What is not clear from the specs?Never used with GNUradio, but according to this document:http://sdr.eladit.com/Linux/Manual-en.pdfit can be done.See alsohttp://sdr.eladit.com/Linux/for other documents like interfacing the transmitter with an Arduino, or with your smartphone...What you mean for "staring bandwidth"? Maybe are you referring to the 6144kHz of receiving bandwidth?

author: dr.diesel
author_rank: Super Contributor
timestamp: April 13, 2019, 01:48:51 pm
content: I have one of these,http://hiqsdr.combut haven't touched it in over a year. Need to dig it back out, was going to make a portable rig out if it.

author: hagster
author_rank: Frequent Contributor
timestamp: April 13, 2019, 03:12:12 pm
content: Thanks eliocor. I didnt find that documentation. It looks like the Tx and Rx use their own USB serial port that can somehow be piped into/out of GNUradio.Yes it looks like it can go upto 6MHz bandwidth which is fairly descent.Quote from: eliocor on April 13, 2019, 01:43:24 pm

author: eliocor
author_rank: Unknown
timestamp: April 13, 2019, 04:32:40 pm
content: If you are talking about HF Tx/Rx, 6MHz of bandwidth are MORE than enough.It seems (from your first post) that you are mixing different types of transcievers: the ones more usable on frequencies upper than 10 MHz, and the ones (ettus) which can be used even on very low frequencies (less than 50kHz).The real HF ones, in general uses 14 or 16 bit ADC converters, the much higher ones (more suitable for V/UHF) in general have only 8-10-12 bit converters. I know that there is the processing gain, but do rely too much on it...Please also take care of the transmission output power: some of those transcievers have only 1-2mW of output power... If you want to do QRSS or QRP: OK, otherwise....Even if it is only a receiver, take a look at the Perseus* receiver: even today is used as a reference to be compared to other receivers for its capabilities!*) I'm a proud owner of a Perseus...

author: jujun
author_rank: Regular Contributor
timestamp: September 01, 2019, 09:38:21 pm
content: About the Hermes Lite, there is currently a group buy for a fully soldered board.It's a quite rare opportunity for the ones who don't want to solder an FPGA and a lot of SMD components.More info there :https://github.com/softerhardware/Hermes-Lite2/wiki/Group-Buy(I have one Hermes Lite, and I soldered it myself. It's a great TRX !)

author: kd3pc
author_rank: Newbie
timestamp: September 03, 2019, 08:15:10 pm
content: Flex RadioElecraft