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*** HAMSTIR ST ***
Interface for FT8, JT65, PSK31, Echolink, APRS, SSTV etc..
There are two basic settings as "Digital Communicating Priority" and "APRS9600bps Priority".
No additional cables are required.
Rig cable is wired with proper plug so as to meet your transceiver.
When you order this product, please let us know your rig name.
For high power operation such as HF rig use, HAMSTIR DX is recommended.
Full photo-coupler connection separates rig block from PC block.
"Digital Communicating Priority" is normal, but it's easy to change above priority.
"Digital Communicating Priority" is good for noise and less distortion.
- [Good] = EchoLink(VoIP), WSJT-X, MMVARI, MMTTY, APRS1200bps. [No Good] = APRS9600bps
"APRS9600bps Priority" is good for Packet 9600bps by flat audio range. (depends on rig spec.)
- [Good] = APRS9600bps, -[Normal] = APRS1200bps, WSJT-X, MMVARI, MMTTY, EchoLink(VoIP)
Various plugs can be taken so as to meet your transceiver.
When you request a quotation, please let us know model name. We will suggest a proper connection.
IF you choose MiniDIN 6P or DIN 8P plug, conversion cable is available.
Various models can be used by using proper conversion cableodels. (eg. 6P to Hand-held)
Specifications )
* Some items are as a reference.
Prices )
1. HAMSTIR ST : JPY 6,800
2. Conversion Cable : JPY 2,000 //from MiniDIN 6P or DIN 8P plug to various models
* Paypal system is available and can take the payment in either JPY or USD currency.
* For credit card customer, e-Bay listing is available if you wish.
English page for other products.
Go to [ Top ]
Go to [HAMSTIR DX] High spec. Interface page (English)
Go to [HAMSTIR X] Gateway/ Link Unit page (English)
Go to [VoIP-Handset VH-MD6] No Rig Operation Usage (English)
Q & A)
Q) What's the differerence?
= HAMSTIR DX-R1
This is best for high-power operating such as HF band..
PC block and rig block are isolated and connected by photo-coupller. (no transformer used)
Also, PC CW-Keying can be operated.
This uses the same board as DX-R2.
= HAMSTIR DX-R2
This is best for high-power operating the same as DX-R1.
DX-R2 has another cable. That is RS-232C cable with D-SUB 9P Female connector.
This cable can use for CAT rig control operation.
However, this cable is not photo-couplled. So, rig should be applied for RF interference.
Of course, DX-R2 has some ferrite-cores. But not photo-couplled.
= HAMSTIR ST
Basic circuit design is simlified from HAMSTIR DX.
1. passive audio input/output line by using PC on-board sound device.
2. dual USB Serial converter (COM-A/B port)
*COM-A port is normal function.
*COM-B port is set as limitted transmit time (about 45seconds). This is better for software TNC .
If you operate only V/UHF only, HAMSTIR ST is enough for RF interference.
In general use less 50 watts O/P power, You can easily countermeasure the problem by ferrite-core etc..
Download setting example photos for WSJT-X(zip898KB) :
This is the case of WSJT-X settings, but almost common on the COM and sound items.
Most of sound devices have a sound enhansment such as surround effect.
This digital processing makes bad encoding and decoding.
CAT and CI-V features are for rig controling by PC.
Do not set any when proper cable is not prepared. Otherwise, error massage will be appeared.
However, WSJT-X "DX Pedition Mode" recommends CAT controling.
This controlling is not "must". When the bandwidth is set to "3000Hz"or less in "Hound", no need to take CAT (CI-V).
If you operates in"Fox", CAT (CI-V) cotrolling is required to receive arround 4000Hz.
If you wish to take CAT controll (bandwidth 3000 to 4000Hz), use USB CAT Cable in the market.
Find it by "USB-CAT-Cable" or "USB-CI-V-Cable" inquiry. FTDI chip used is reliable!
And, this is for definitely low power operating such as FT8, JT65 etc..
IF your rig has RS-232C terminal of D-SUB 9P Male, HAMSTIR DX-R2 is recommended.
FT8 DXpedition Mode in No CAT control :
The setting and QSO example page of FT8 DXpedition Mode in No CAT and No CI-V control.
One improvement for RF interference (.pdf) :
In case of some PC use, mulfunction (on PTT or Sound) may happen. Try by this.
It requires the soldering but not so difficult.
Echolink is a registered trademark of Synergenics, LLC.
APRS is developed by Bob Bruninga, WB4APR.
WSJT-X is licensed under the terms of Version 3 of the GNU General Public License (GPU).
WIRES-X is a registered trademark of Yaesu Musen Co.,Ltd.