Showing posts with label HF-One MKII. Show all posts
Showing posts with label HF-One MKII. Show all posts

Tuesday, January 7, 2014

HF-One: HF-One MKII Kit

I'm not real sure what is going on, but the kit version of the HF-One MKII sounds easy to put together.
"The next package, you only need a screwdriver to assemble OK, multimeter may also be unobtainable."
Maybe even something I could do if they do start shipping them.

Monday, January 6, 2014

Best and Worst of 2013

I was going to do a list, but I've been lazy busy. Lucky for me, Hans has updated his "China’s Best and Worst" list for 2013. He does his rankings based on the technical analysis.

Looks like I am going to do a list of sorts after all...

From a non-technical perspective, I would say looking at the GT-3 has been fun. I'd like to get a ZT-2R as its wide-receive might make it a better micro HT to have around than the UV-3R.

I got to play with the KG-UV950P and learned quite a bit during the testing process. (Thanks again to Buy Two Way Radios for the loaner.) I also was really excited about the VV-808 when it appeared as an inexpensive single band mobile.

The Xiegu X1MKII has taken off - so much that I've not kept up with all the news/mods/firmwares/etc. And I wish that I'd see more about the HF-One MKII.

As for 2014, hopefully we will continue to see advances across the board including the digital radios that are starting to appear. (And hopefully I will get a job, too!)

Sunday, December 29, 2013

HF-One MKII: Not Looking Good

A refund:
"I just gor my money back. 
Crazy guy, crazy company, crazy people........... bad story"

Friday, November 22, 2013

HF-One: HF-One MKII Box

Friday is probably not the best time for a major update on the HF-One - and I don't really have one anyway. But they are working on the packaging.

Friday, November 1, 2013

HF-One: HF-One MKII Juma TRX2A

YO9IRF offers some insight on the HF-One MKII:
"When you see the internals though, you will realise this isn't something completely new: it is actually a repacked Juma TRX2A made a few years ago by OH2NLT and OH7SV and initially sold for EUR 500 (wich is around US$ 680), sporting AD9851 direct digital synthesis (also used in the X1M), polyphase filtering and a PIC 30F5014 microcontroller. It works from 11 to 15V, takes 500mA on RX and 3A at the maximum 10W TX output, reciever sensitivity is -130dBm and the IMD3 dynamic range is claimed at an impressive over 100dB."

Wednesday, October 30, 2013


I have traded a couple of messages with the seller. The only note of any substance at all is that they are in the process of building their current iteration and will have more information in about a month.

Monday, October 28, 2013

HF-One: HF-One MKII Internals

"Brief description: amplifier and low-pass at the bottom, the motherboard on top. seat with two 2.54 fasten .32 PIN of FFC cable connected to the front face. That's it. machine is only three PCB, can try to patch the patch. deduction locking screws and other low-tech work and some require soldering are:

1 \ Power cord
2 \ Amplifier tube
3 \ forward and reverse power detection coil
4 \ likely six relays have manual welding on
5 \ and antenna pedestal cable
6 \ multifunction port (9-pin serial port power strip)
7 \ 3.5MM stereo jack

good Like no.

motherboard does not seem to require manual soldering. wear only need to manually connect the front face of the 32PIN cable."

HF-One: HF-One MKII Control and SDR

Looks like control will be via USB or serial based on this question:
"Tablet PC, mobile phone via Bluetooth control it?"
And answer:
"No, the app via wifi control pc, pc control the machine with usb or com"
And when asked about SDR, the reply was:
"There i and q signal output, then the pc sound card or iphone adapter with hdsdr, powersdr, isdr etc. software"

HF-One: HF-One MKII Microphone

A note on the functionality of the HF-One MKII microphone:
"Hand m not dtmf, nor can type frequency, is used to control the recording sheet"

HF-One: HF-One MKII Details

I found a thread about the HF-One MKII at and will have several posts about this radio based on what I found there. Translations courtesy of Google Chrome/Translate. This first one is a long description of the radio and some of its features:

"Low-power portable HF SSB transceiver kit assembly and adjustment (on) Overview: 5100 HF SSB transceiver small power car, HAM is the latest of a high-performance HF transceiver kit, which prototype for foreign TRX2A mature suite. The machine uses a single-sideband phase-shifting technology, eliminating the high cost and cumbersome to adjust SSB crystal filter. Machine extensive use of SMD components, with lines mature, cost-effective, powerful features, it is worth a try amateur radio enthusiasts. 
Here to tell us about this transceiver kit assembly and adjustment. One, the whole constitutes the whole total of three PCB, respectively, display control panel, motherboard and RF transceiver amplifier board. High integration, small components is a feature of the machine, so when assembled, covered with a clean plate as far as possible, and keep the surroundings clean, so if the components are not accidentally fall, it tends to recover . The display control panel to adjust the frequency encoding rotary switch, volume control potentiometer, control the automatic wire-speed potentiometer. In addition, there are six multi-touch buttons and microphone jack, then, clear displays. 
Powerful machine microcomputer control chip and direct digital frequency synthesizer chip is also located on the block on the PCB, board a trimming resistor for trimming direct digital frequency synthesizer output phase. Board also built a total length of 240 seconds of the ten segments sound recording circuitry. Using a 32-core FFC flexible flat cable to the transceiver board. An eight-core RJ45 socket for connecting the multifunction control microphone in hand. Transceiver integrated on the motherboard of the machine's most important transceiver channel line. And connect the Display control panel and RF amplifier board. Phase shift circuit transceiver and audio filter circuit is located on the upper section and intermediate. Audio amplifier is located on the bottom right of the board. The block on the PCB, there are three adjustable potentiometer, respectively, for adjusting the maximum power CW, SSB maximum power adjustment, and automatic gain control AGC threshold adjustments. RF amplifier board in the host's bottom with integrated transmitter power amplifier, low-pass filters transmit receive pre-selected frequency transceiver circuit and switching circuit. 
In addition to the antenna socket connection, the panel also has a 3.5mm external jack for an external speaker cabinet; a 9-pin multi-function interface, providing the microprocessor serial communication port, auto-key interface and transceiver control signal input and output other connections. The block on the PCB has four trimmer, trimming two individually and two push tube amplifier tube quiescent current. A maximum current of 3.5A SMD fuse is also located in the top right corner of the plate, two red and black power cord provides power machine connection. In addition, the board has two patch 2.54 for connection to send and receive the motherboard. 
Second, the whole welding assembly kit provides is the big kit form, and most of the IC RC have patch welding complete, the user need only a small amount of welding line discrete devices, enthusiasts spend a little time, use the tip of a 35W head electric iron, with the commonly used tweezers, screwdrivers, etc. Basically, you can easily completed independently, so a low level of difficulty assembling welding. Get the PCB, the first detailed examination of the naked eye whether the legacy board solder points, points, etc. heap tin, preferably with a magnifying glass and then check in detail the various IC devices and socket pin has even welding, Weld and so on. 
1) Display control panel welding assembly
① first eight-core RJ45 socket weld, fasten the 32 pin FFC cable and the display assembly fixed, posted a good key Mylar film, as shown.
② fitted rotary encoders and two potentiometers, PCB fixed to the front surface of the plastic shell, fine-tuning knob handle position, making sure hole in the middle of the front shell, you can weld on the rotary encoders and potentiometers. Weld horn two wiring.
③ tear screen protective film, posted a good mirror. Description: The factory, microprocessor control chip firmware has been brushed latest version, the user need not consider firmware update issues. Should you need to downgrade the firmware update microprocessor or due to re-burn solid, you can contact the service units to solve.  
2) RF power amplifier board welding assembly
① Press the attached information about a good six low-pass magnetic coil and the coil pin to scrape paint, boring is good tin.
② welding two standing wave power detection coil and the intermediate threaded weld is good. Low-pass welding six magnetic coils. Welding 6 relays.
③ weld 3.5MM socket, 9-pin multi-socket
④ ready two amplifier tube, curved good pin and painted a good cooling gel, three-terminal regulator 7805 also painted a good cooling gel, these three TO-220 packaged devices with screws in cast aluminum shell, as shown.
⑤ fitted RF amplifier board PCB, pay attention to the good two amplifier tube pins, use four 1-centimeter-long bolts and three M3 screws good RF amplifier board PCB, soldered two amplifier tube pin. Openings from the PCB using a Phillips screwdriver checking two amplifier tube is tightened.
⑥ welding power cord terminals. Description: This board four trim resistor adjustment need not adjust the motherboard transceiver installed, so you can start with the following RF amplifier board of adjustment, then the motherboard assembly. 
3) transceiver board assembly. The plates welded components without user put on the PCB two 2.54-row seat aligned RF power amplifier board pin, pressed a little harder motherboard, make-row seat buckle in place. Use four screws fixed transceiver motherboard.  
4) the whole assembly
① first waterproof tape fixed to the aluminum shell, pull out the three-terminal regulator cable into the Display control panel. The display control panel FFC cable through the other end connected to the aluminum shell openings transceiver socket on the motherboard, and secure.
② Shell snaps onto the front cast aluminum chassis. Fitted with metal casing and lock, installed car bracket, connect the power cord to extend the client. At this point, the host welding assembly is completed.  
5) multi-microphone in hand soldering assembly kit requires welding assembly hand microphone device is not much. Follow these steps, you can easily accomplish.

1 iron lock to the hook on the back cover, then microphone, pay attention with a good two weight stack.
(2) if the microphone attached to the keys on the front cover, press the Li-ping. A spring assembled PTT, PTT button, PTT rubber bridge, the second function key rubber.
3 welding on the electret microphone, two touch buttons, 8-pin row seat, clock crystal.
4 aligned position, glue on the PCB Mylar film, try to press the normal feel comfortable.
5 In the words of the PCB board fixed microphone on the front cover and tighten four screws. And press each button, the test feel.
6 Use pointed tweezers or pin auxiliary, then the 8 pin microphone cable according to the functions corresponding to adjust line sequence. The word microphone cord into the 8-pin socket on the PCB, good pressure fixed rubber block.
7 Microphone for wear after the shell and tighten three screws.
8. Microphone connected to the hand grip panel microphone jack. 
At this point, the whole welding assembly is completed. At this point, the whole welding assembly is completed."

HF-One: HF-One MKII More Vidoes

You are a better man than I if you can get much out of these first two videos.

Introduction 1

Introduction 2

This next video of receiving is of much better quality.

Saturday, October 26, 2013

HF-One: HF-One MKII Video

Based on this video, the HF-One will connect via RS232 to Ham Radio Deluxe and works like a Yaesu FT-897.

HF One: HF One MKII New & Better Pictures

Some duplicates from earlier but better resolution.

HF-One: HF-One MKII: Serial Port

On a Chinese website, I found this picture of what I think is the HF-One MKII. Looks like a serial port on the back of it. Also, I keep seeing references to "kits." No response from the seller yet, so don't start counting chickens before they are hatched.

And for Hans... is that a shielded banana plug, too?

SO-239 and 9-pin serial for the win!

Thursday, October 24, 2013

HF-One: HF-One MKII QRP HF Mobile

Thanks to Riku for sending me the link to the HF-One MKII 10 W HF radio. Details are limited, but here is what the listing says you get for your $300 (plus shipping):

- 100K--30MHz rx and tx in all band amateur radio band under 30MHz.
- output max:10W
- mode:ssb /CW
- with SDR
- AUTOKEY build in.
- audio REC build in.

Here is where it gets interesting for me. These images looks like the SDR could be controlled by your iPhone or iPad.

The radio looks very familiar to me. And I'm going to be surprised if there is an app for that - controlling the radio. I've e-mailed the seller to see what else I can find out.